Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938192
S. Murali, K. Abhinav, R. Shankar
The world is more focusing on the mission of zero carbon emission and coming up with suitable propagandas. Utilization of renewable energy sources (RES) and electric vehicle (EV) in generation and automobile sectors are major stepping stones towards this mission. But, the drastic rise in EVs enables more number of vehicles charging on the electric grid. This shows considerable impact on the power system dynamics. The EVs can also provide ancillary services with appropriate control technique to increase the robustness of the power system. Hence, the study of the dynamic stability analysis of the power system in necessary including EVs. This work evaluates the participation of EVs improving the frequency regulation of the power system using an aggregate model. A single area system and P. Kundur's two-area four generator model has been taken as test systems for analysis purposes. The frequency regulation of the considered test systems is studied using volleyball premier league algorithm based PID controller. The comparative studies show the ancillary support of EVs in transient response of the system for a sudden perturb in load demand. Also the dynamic behavior of the system has been verified for the presence of communication delay in the LFC mechanism.
{"title":"Exploration of EV Fleet role in Frequency Regulation using an Aggregate Model including Communication Delay","authors":"S. Murali, K. Abhinav, R. Shankar","doi":"10.1109/GlobConPT57482.2022.9938192","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938192","url":null,"abstract":"The world is more focusing on the mission of zero carbon emission and coming up with suitable propagandas. Utilization of renewable energy sources (RES) and electric vehicle (EV) in generation and automobile sectors are major stepping stones towards this mission. But, the drastic rise in EVs enables more number of vehicles charging on the electric grid. This shows considerable impact on the power system dynamics. The EVs can also provide ancillary services with appropriate control technique to increase the robustness of the power system. Hence, the study of the dynamic stability analysis of the power system in necessary including EVs. This work evaluates the participation of EVs improving the frequency regulation of the power system using an aggregate model. A single area system and P. Kundur's two-area four generator model has been taken as test systems for analysis purposes. The frequency regulation of the considered test systems is studied using volleyball premier league algorithm based PID controller. The comparative studies show the ancillary support of EVs in transient response of the system for a sudden perturb in load demand. Also the dynamic behavior of the system has been verified for the presence of communication delay in the LFC mechanism.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125616206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938273
Sunaina Singh, V. Narayanan, Bhim Singh, B. K. Panigrahi
This paper presents a two-stage 3-Φ solar photovoltaic (PV) array, battery energy storage (BES) based microgrid with seamless synchronization capability. This system works in different modes such as in grid integrated mode (GIM), islanded mode (IM), mode from GIM to IM, and mode from IM to GIM. To overcome the power quality problems and to generate the triggering pulses for the voltage source converter (VSC), a mixed norm least mean square-least mean fourth (MNt2-t4LMS) is implemented. A DC-DC boost converter is used to harvest the maximum power from the solar PV array by using a maximum power point tracking (MPPT)-based on incremental conductance (INC) control. Moreover, a bidirectional DC-DC converter (BDDC) controls the battery current and maintains the DC-link voltage. This steady-state and dynamic performance is validated in simulation using MATLAB/Simulink tool boxes.
{"title":"Two-Stage 3-Φ Utility Interfaced PV-BES with Synchronization Capability","authors":"Sunaina Singh, V. Narayanan, Bhim Singh, B. K. Panigrahi","doi":"10.1109/GlobConPT57482.2022.9938273","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938273","url":null,"abstract":"This paper presents a two-stage 3-Φ solar photovoltaic (PV) array, battery energy storage (BES) based microgrid with seamless synchronization capability. This system works in different modes such as in grid integrated mode (GIM), islanded mode (IM), mode from GIM to IM, and mode from IM to GIM. To overcome the power quality problems and to generate the triggering pulses for the voltage source converter (VSC), a mixed norm least mean square-least mean fourth (MNt2-t4LMS) is implemented. A DC-DC boost converter is used to harvest the maximum power from the solar PV array by using a maximum power point tracking (MPPT)-based on incremental conductance (INC) control. Moreover, a bidirectional DC-DC converter (BDDC) controls the battery current and maintains the DC-link voltage. This steady-state and dynamic performance is validated in simulation using MATLAB/Simulink tool boxes.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132731785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938345
Vaibhav Shah, Gautam Kumawat, S. Payami
The article proposes a solar-powered electric drive-train which integrates a bidirectional DC/vehicle-to-vehicle (V2V) fast charger incorporating switched reluctance motor (SRM) drive. The traction converter and phase windings are re-leveraged to charge the battery, thus eliminating the additional hardware required during charging. To extend the driving range, the charging and driving operation are simultaneously performed via the solar photovoltaic (PV) panel installed on the electric vehicle (EV) rooftop. When the EV is idle, the solar PV source installed on or external connects to the battery via the integrated bidirectional DC/V2V fast charger, which implements the maximum power point tracking (MPPT) algorithm. The integrated bidirectional DC/V2V fast charger also allows charging/discharging via another EV (EV2) battery source, commonly referred to as V2V charging. In addition, the proposed integrated drive-train (IDT) employs the same number of switches as with a standard n-phase asymmetric half-bridge converter and is also suitable for grid-to-vehicle (G2V), vehicle-to-grid (V2G) operation. Experiments on a prototype 1.1 kW SRM validate the effectiveness of the proposed drive-train, which supernumerary reduces the component footprint of the EV charging system.
{"title":"Solar Powered Electric Drive-Train With Integrated Bidirectional DC/V2V Fast Charger Incorporating Switched Reluctance Motor","authors":"Vaibhav Shah, Gautam Kumawat, S. Payami","doi":"10.1109/GlobConPT57482.2022.9938345","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938345","url":null,"abstract":"The article proposes a solar-powered electric drive-train which integrates a bidirectional DC/vehicle-to-vehicle (V2V) fast charger incorporating switched reluctance motor (SRM) drive. The traction converter and phase windings are re-leveraged to charge the battery, thus eliminating the additional hardware required during charging. To extend the driving range, the charging and driving operation are simultaneously performed via the solar photovoltaic (PV) panel installed on the electric vehicle (EV) rooftop. When the EV is idle, the solar PV source installed on or external connects to the battery via the integrated bidirectional DC/V2V fast charger, which implements the maximum power point tracking (MPPT) algorithm. The integrated bidirectional DC/V2V fast charger also allows charging/discharging via another EV (EV2) battery source, commonly referred to as V2V charging. In addition, the proposed integrated drive-train (IDT) employs the same number of switches as with a standard n-phase asymmetric half-bridge converter and is also suitable for grid-to-vehicle (G2V), vehicle-to-grid (V2G) operation. Experiments on a prototype 1.1 kW SRM validate the effectiveness of the proposed drive-train, which supernumerary reduces the component footprint of the EV charging system.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133218097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938194
Muhammad Zarkab Farooqi, Bhim Singh, B. K. Panigrahi
Single-phase two-stage AC-DC converters used in electric vehicle (EV) chargers produce double-line frequency ripple, making it necessary to use bulky DC-link capacitors. High voltage ripple at DC-link due to reduced capacitance, results in poor input power quality and high double-line frequency ripple at the output of secondary-stage. In state-of-art, input power quality in converters with low DC-link capacitance is enhanced by using a digital low-pass filter (LPF). However, employing LPF to sensed DC-link voltage results in non-optimum dynamic response and deteriorated stability margins. With the objective to improve input power quality and to enhance dynamic performance with low valued DC-link capacitance, a modified unit-template based model predictive control (MUT-MPC) is implemented for primary AC-DC converter. The current feed-forward for the unit-template is controlled by predictive voltage error through an optimization process of cost function. Furthermore, a DC-link feedforward (DFF) control is implemented for secondary DC-DC stage, which reduces the low-frequency current ripple at the load. The effectiveness of the presented controls are verified by simulation and experimental results.
{"title":"Modified MPC Approach to Single-Phase Two-Stage AC-DC Converter for Reduced DC-link Capacitance","authors":"Muhammad Zarkab Farooqi, Bhim Singh, B. K. Panigrahi","doi":"10.1109/GlobConPT57482.2022.9938194","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938194","url":null,"abstract":"Single-phase two-stage AC-DC converters used in electric vehicle (EV) chargers produce double-line frequency ripple, making it necessary to use bulky DC-link capacitors. High voltage ripple at DC-link due to reduced capacitance, results in poor input power quality and high double-line frequency ripple at the output of secondary-stage. In state-of-art, input power quality in converters with low DC-link capacitance is enhanced by using a digital low-pass filter (LPF). However, employing LPF to sensed DC-link voltage results in non-optimum dynamic response and deteriorated stability margins. With the objective to improve input power quality and to enhance dynamic performance with low valued DC-link capacitance, a modified unit-template based model predictive control (MUT-MPC) is implemented for primary AC-DC converter. The current feed-forward for the unit-template is controlled by predictive voltage error through an optimization process of cost function. Furthermore, a DC-link feedforward (DFF) control is implemented for secondary DC-DC stage, which reduces the low-frequency current ripple at the load. The effectiveness of the presented controls are verified by simulation and experimental results.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130842122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938174
Mohd Farman Sajid, Sameena Naaz
The objective of a virtual assistant is to use web-based data sources, user-generated content, and knowledge from knowledge libraries. An Intelligent virtual assistant's main purpose is to deliver solutions to users' questions. It is possible to do it in a business setting, like on a company website with a chat interface. Virtual assistant is very helpful especially for elder as well as for people with cognitive disability such as Alzheimer's disease. For someone with physical limitations, a virtual assistant can be very useful. Seniors with poor vision or limited mobility, for example, one can operate the device simply by speaking into it. New techniques of caring for the elderly that include advanced information and communication technology are desperately required. As a percentage of the total population, the world's senior population is rapidly growing, but the fraction of the working population who will create the resources to assist the aged is declining. Voice searches have a number of advantages for elders as well as for cognitive disability such as speed. In fact, voice searches are much faster than written searches. A survey has been carried out in this work in which some questions have been asked from elderly people and people with abnormality or disability. The questions were based on Virtual Assistant. The aim of this task was to evaluate how many people use these assistants in their everyday life. Based on this survey it has been concluded that the prevalence of Virtual Assistants is growing in our day to day lives.
{"title":"Virtual Intelligent Assistant: A Support for Elderly People","authors":"Mohd Farman Sajid, Sameena Naaz","doi":"10.1109/GlobConPT57482.2022.9938174","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938174","url":null,"abstract":"The objective of a virtual assistant is to use web-based data sources, user-generated content, and knowledge from knowledge libraries. An Intelligent virtual assistant's main purpose is to deliver solutions to users' questions. It is possible to do it in a business setting, like on a company website with a chat interface. Virtual assistant is very helpful especially for elder as well as for people with cognitive disability such as Alzheimer's disease. For someone with physical limitations, a virtual assistant can be very useful. Seniors with poor vision or limited mobility, for example, one can operate the device simply by speaking into it. New techniques of caring for the elderly that include advanced information and communication technology are desperately required. As a percentage of the total population, the world's senior population is rapidly growing, but the fraction of the working population who will create the resources to assist the aged is declining. Voice searches have a number of advantages for elders as well as for cognitive disability such as speed. In fact, voice searches are much faster than written searches. A survey has been carried out in this work in which some questions have been asked from elderly people and people with abnormality or disability. The questions were based on Virtual Assistant. The aim of this task was to evaluate how many people use these assistants in their everyday life. Based on this survey it has been concluded that the prevalence of Virtual Assistants is growing in our day to day lives.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133756855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938300
A. Nanda, V. Narayanan, Bhim Singh
The paper presents a solar photovoltaic (PV) and battery energy storage (BES) based three-phase microgrid configuration in grid-interfaced (GI) and standalone (SA) modes. Two solar PV arrays and a BES are connected in parallel to the point of common coupling (PCC). The parallel voltage source converters (VSCs) are controlled in current/power-sharing mode. The VSC connected to BES is controlled to feed constant power to the grid in GI mode, whereas it operates as a grid forming inverter, supporting the PCC voltage in SA mode. The VSCs connected to PVs are always operated in current controlled mode. A complex coefficient complex variable filter-based frequency locked loop (CCCVF-FLL) is used to estimate the active fundamental weight of load currents. The same FLL is used to estimate the phase of the load/grid voltages for the synchronization of the microgrid to the utility grid.
{"title":"Control of Three-Phase Parallel Inverters Based Solar PV-BES Microgrid","authors":"A. Nanda, V. Narayanan, Bhim Singh","doi":"10.1109/GlobConPT57482.2022.9938300","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938300","url":null,"abstract":"The paper presents a solar photovoltaic (PV) and battery energy storage (BES) based three-phase microgrid configuration in grid-interfaced (GI) and standalone (SA) modes. Two solar PV arrays and a BES are connected in parallel to the point of common coupling (PCC). The parallel voltage source converters (VSCs) are controlled in current/power-sharing mode. The VSC connected to BES is controlled to feed constant power to the grid in GI mode, whereas it operates as a grid forming inverter, supporting the PCC voltage in SA mode. The VSCs connected to PVs are always operated in current controlled mode. A complex coefficient complex variable filter-based frequency locked loop (CCCVF-FLL) is used to estimate the active fundamental weight of load currents. The same FLL is used to estimate the phase of the load/grid voltages for the synchronization of the microgrid to the utility grid.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"381 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134102889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938213
Lei Chen, Jingguang Tang, Meng Ding, Zekai Zhao, Xuefeng Qiao, Xinyi Deng
Multiple microgrid clusters (MMGCs) enable to more efficiently accommodate distributed renewable power generators and consume loads, and it can be regarded as an improved microgrid technology. Aiming at the imperative fault ride-through (FRT) issue of MMGCs, this paper proposes a method of applying solid-state transformers (SSTs) with an adaptive current-limiting (ACL) function. Firstly, the configuration structure and control scheme of the MMGCs with SSTs are presented. Then, the implementation of the ACL function in the SST and the equivalent fault features of the MMGCs are stated. The FRT strategy of the MMGCs in terms of the fault severity level is put forward. Using MATLAB, a detailed digital model of the MMGCs with SSTs is created. Multiple faults with different locations are imitated to validate the proposed FRT strategy's efficacy. From the simulations and comparisons, the SSTs with the ACL function can visibly suppress the fault currents of the MGs under the tolerable range, and alleviate the voltage dips to enhance the grid-connection ability of the MGs. Besides, the power angle changes and connecting line frequency variations of the MMGCs are restrained by the proposed method. Thus, the robustness of the MMGCs defending the faults is well increased, and the proposed method's feasibility is proven.
{"title":"Fault Ride-Through of Multiple Microgrid Clusters Based on Solid-State Transformers with Adaptive Current-Limiting Function","authors":"Lei Chen, Jingguang Tang, Meng Ding, Zekai Zhao, Xuefeng Qiao, Xinyi Deng","doi":"10.1109/GlobConPT57482.2022.9938213","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938213","url":null,"abstract":"Multiple microgrid clusters (MMGCs) enable to more efficiently accommodate distributed renewable power generators and consume loads, and it can be regarded as an improved microgrid technology. Aiming at the imperative fault ride-through (FRT) issue of MMGCs, this paper proposes a method of applying solid-state transformers (SSTs) with an adaptive current-limiting (ACL) function. Firstly, the configuration structure and control scheme of the MMGCs with SSTs are presented. Then, the implementation of the ACL function in the SST and the equivalent fault features of the MMGCs are stated. The FRT strategy of the MMGCs in terms of the fault severity level is put forward. Using MATLAB, a detailed digital model of the MMGCs with SSTs is created. Multiple faults with different locations are imitated to validate the proposed FRT strategy's efficacy. From the simulations and comparisons, the SSTs with the ACL function can visibly suppress the fault currents of the MGs under the tolerable range, and alleviate the voltage dips to enhance the grid-connection ability of the MGs. Besides, the power angle changes and connecting line frequency variations of the MMGCs are restrained by the proposed method. Thus, the robustness of the MMGCs defending the faults is well increased, and the proposed method's feasibility is proven.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134260785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938282
K. Gholami, Ali Azizivahed, A. Arefi, Md. Moktadir Rahman, Md. Rabiul Islam
Electronic-based loads such as computers, smart phones, etc. are fast expanding all around the world. On the other hand, the aging of distribution systems to deliver power to these users results in a low quality of power. To this aim, in this study, renewable energy sources (RESs) connected to networks by smart inverters, are allocated to support networks' weakness related to harmonic distortion, resulting in delivering high-quality power to customers. In other words, solar and wind energy resources are optimally allocated in reconfigurable distribution networks with the aim of minimizing total harmonic distortion (THD). Due to the nonlinearity of the problem, the proposed methodology is then optimized by using the differential evolution algorithm (DEA). The simulation results from a typical 33-bus IEEE test network demonstrate that network reconfiguration in the presence of renewable energies with the interface of smart inverters has an active role in THD compensation, loss minimization, etc.
{"title":"Power Quality Enhancement of Smart Reconfigurable Grids by Integrating Renewable Energy Sources","authors":"K. Gholami, Ali Azizivahed, A. Arefi, Md. Moktadir Rahman, Md. Rabiul Islam","doi":"10.1109/GlobConPT57482.2022.9938282","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938282","url":null,"abstract":"Electronic-based loads such as computers, smart phones, etc. are fast expanding all around the world. On the other hand, the aging of distribution systems to deliver power to these users results in a low quality of power. To this aim, in this study, renewable energy sources (RESs) connected to networks by smart inverters, are allocated to support networks' weakness related to harmonic distortion, resulting in delivering high-quality power to customers. In other words, solar and wind energy resources are optimally allocated in reconfigurable distribution networks with the aim of minimizing total harmonic distortion (THD). Due to the nonlinearity of the problem, the proposed methodology is then optimized by using the differential evolution algorithm (DEA). The simulation results from a typical 33-bus IEEE test network demonstrate that network reconfiguration in the presence of renewable energies with the interface of smart inverters has an active role in THD compensation, loss minimization, etc.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938148
M. V. S. S. Chandra, S. Mohapatro
Recent times have seen the popularity of Low Voltage DC (LVDC) microgrids. Standalone LVDC microgrids have been quite effective in applications like rural electrification, data centre power systems, satellite microgrids. Voltage control and energy management are very critical in case of standalone LVDC microgrids. The sensor faults especially are critical to handle in standalone and safety critical systems. This work proposes a hybrid sensor fault tolerant control (HSFTC) strategy comprising of both analytical and hardware redundancy components. The analytical redundancy component is designed using a sliding mode observer in tandem with adaptive passivity based control, in order to handle voltage sensor faults. The double modular hardware redundancy component is designed to handle the battery current sensor faults. The performance of the proposed control under different situations of voltage and current sensor faults is observed through the simulation studies in MATLAB/SIMULINK platform. The proposed control strategy is compared with few popular control strategies and found to be effective at handling sensor faults.
{"title":"Hybrid Sensor Fault Tolerant Control of Low Voltage DC Microgrid","authors":"M. V. S. S. Chandra, S. Mohapatro","doi":"10.1109/GlobConPT57482.2022.9938148","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938148","url":null,"abstract":"Recent times have seen the popularity of Low Voltage DC (LVDC) microgrids. Standalone LVDC microgrids have been quite effective in applications like rural electrification, data centre power systems, satellite microgrids. Voltage control and energy management are very critical in case of standalone LVDC microgrids. The sensor faults especially are critical to handle in standalone and safety critical systems. This work proposes a hybrid sensor fault tolerant control (HSFTC) strategy comprising of both analytical and hardware redundancy components. The analytical redundancy component is designed using a sliding mode observer in tandem with adaptive passivity based control, in order to handle voltage sensor faults. The double modular hardware redundancy component is designed to handle the battery current sensor faults. The performance of the proposed control under different situations of voltage and current sensor faults is observed through the simulation studies in MATLAB/SIMULINK platform. The proposed control strategy is compared with few popular control strategies and found to be effective at handling sensor faults.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132387290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-23DOI: 10.1109/GlobConPT57482.2022.9938247
R. K. Pandey, D. Gupta, Geetanjali Dei
This paper presents the novel concept to deal with frequency and tie-line control for multi-source multi-area hybrid power systems in a deregulated environment. The test system that operates under deregulated regime has various sources such as thermal power plants, hydroelectric systems, wind energy sources, and gas turbine-based power plants. The reported work mainly focuses on effectively minimizing the variations in frequency, tie-line, and area control error with various operational shifts. Since the regulation of frequency is essential for system stability, therefore proper tuning of Fractional Order PID (FOPID) controllers is very important in order to have oscillation damping. To overcome the disadvantage of conventional controllers in load frequency control (LFC), a hybrid intelligent algorithm has implemented to tune the controller gains of FOPID controllers by minimizing ITAE as an objective function. The proposed intelligent technique utilizes the main features of Gravitational Search Algorithm (GSA), Firefly Algorithm (FA), and Particle Swarm Optimization (PSO) techniques. Simulations are carried out for multi-source multi-area systems under deregulated environment with different power agreements and load change scenarios.
{"title":"Hybrid Intelligent Optimization Technique (HIOT) Driven FOPID Controller for Load Frequency Control of Deregulated Power System","authors":"R. K. Pandey, D. Gupta, Geetanjali Dei","doi":"10.1109/GlobConPT57482.2022.9938247","DOIUrl":"https://doi.org/10.1109/GlobConPT57482.2022.9938247","url":null,"abstract":"This paper presents the novel concept to deal with frequency and tie-line control for multi-source multi-area hybrid power systems in a deregulated environment. The test system that operates under deregulated regime has various sources such as thermal power plants, hydroelectric systems, wind energy sources, and gas turbine-based power plants. The reported work mainly focuses on effectively minimizing the variations in frequency, tie-line, and area control error with various operational shifts. Since the regulation of frequency is essential for system stability, therefore proper tuning of Fractional Order PID (FOPID) controllers is very important in order to have oscillation damping. To overcome the disadvantage of conventional controllers in load frequency control (LFC), a hybrid intelligent algorithm has implemented to tune the controller gains of FOPID controllers by minimizing ITAE as an objective function. The proposed intelligent technique utilizes the main features of Gravitational Search Algorithm (GSA), Firefly Algorithm (FA), and Particle Swarm Optimization (PSO) techniques. Simulations are carried out for multi-source multi-area systems under deregulated environment with different power agreements and load change scenarios.","PeriodicalId":431406,"journal":{"name":"2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123856030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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