Pub Date : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379423
Shashank Kurm, V. Agarwal
Micro-inverters are required to interface PV generation directly with AC loads or grid at low power levels. A typical microinverter consists of a DC/DC conversion stage, followed by an inverter stage. Dual active bridge (DAB) converter appears to be a promising candidate for use in the DC/DC converter stage in a microinverter since it offers several features like high voltage gain, galvanic isolation, zero voltage switching, etc., which are highly desirable for microinverters applications. A micro-inverter topology is presented in this paper which is based on the dual active bridge converter. The proposed topology also incorporates active power decoupling (APD) by supplying the low frequency component of single phase AC power drawn by the load without using any extra switch. APD allows reduction in the required value of DC link capacitance without having a large voltage ripple. This obviates the use of electrolytic capacitors, which generally have a short operating life and are considered a weak link in power electronic systems. The paper describes the modelling of DAB for closed loop control, and the control system for 100 Hz power decoupling. The proposed microinverter topology has been simulated in PLECS, and the simulation results are presented here.
{"title":"Dual Active Bridge based Micro-Inverter for Standalone Renewable Energy Systems with Low DC Link Capacitance","authors":"Shashank Kurm, V. Agarwal","doi":"10.1109/PEDES49360.2020.9379423","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379423","url":null,"abstract":"Micro-inverters are required to interface PV generation directly with AC loads or grid at low power levels. A typical microinverter consists of a DC/DC conversion stage, followed by an inverter stage. Dual active bridge (DAB) converter appears to be a promising candidate for use in the DC/DC converter stage in a microinverter since it offers several features like high voltage gain, galvanic isolation, zero voltage switching, etc., which are highly desirable for microinverters applications. A micro-inverter topology is presented in this paper which is based on the dual active bridge converter. The proposed topology also incorporates active power decoupling (APD) by supplying the low frequency component of single phase AC power drawn by the load without using any extra switch. APD allows reduction in the required value of DC link capacitance without having a large voltage ripple. This obviates the use of electrolytic capacitors, which generally have a short operating life and are considered a weak link in power electronic systems. The paper describes the modelling of DAB for closed loop control, and the control system for 100 Hz power decoupling. The proposed microinverter topology has been simulated in PLECS, and the simulation results are presented here.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116927757","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379631
Zeeshan Sarwer, A. Sarwar, Mohammad Zaid, M. Tariq, Mohammad Ali, M. Saad bin Arif
A modified structure of a switched capacitor included multilevel inverter (SCMLI) is discussed in this paper. The proposed structure is presented with the aim to reduce the total switches. 13-level output is achieved by using 9 switches and 1 capacitor. Moreover, the additional features of the proposed structure include the self-balanced capacitor voltage, reduced total standing voltage (TSV) and output of both polarities without using an H-bridge. Simulation results showing the voltage and current waveforms for different loading conditions are included. The comparison section in the paper is present to compare the presented topology with the other inverter topologies. Results are also taken for a dynamic change in modulation index and loading conditions. MATLAB/SIMULINK is used for obtaining the simulation results, which is validated by hardware in loop implementation of the proposed topology. With the help of loss analysis, efficiency of the proposed structure is calculated. This is done by using PLECS software. The proposed topology has the maximum efficiency of 98.8 %.
{"title":"A Switched Capacitor Multilevel Inverter with Self Voltage Balancing Capability","authors":"Zeeshan Sarwer, A. Sarwar, Mohammad Zaid, M. Tariq, Mohammad Ali, M. Saad bin Arif","doi":"10.1109/PEDES49360.2020.9379631","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379631","url":null,"abstract":"A modified structure of a switched capacitor included multilevel inverter (SCMLI) is discussed in this paper. The proposed structure is presented with the aim to reduce the total switches. 13-level output is achieved by using 9 switches and 1 capacitor. Moreover, the additional features of the proposed structure include the self-balanced capacitor voltage, reduced total standing voltage (TSV) and output of both polarities without using an H-bridge. Simulation results showing the voltage and current waveforms for different loading conditions are included. The comparison section in the paper is present to compare the presented topology with the other inverter topologies. Results are also taken for a dynamic change in modulation index and loading conditions. MATLAB/SIMULINK is used for obtaining the simulation results, which is validated by hardware in loop implementation of the proposed topology. With the help of loss analysis, efficiency of the proposed structure is calculated. This is done by using PLECS software. The proposed topology has the maximum efficiency of 98.8 %.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117152976","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379900
Sankarrao Ruttala, Subhasis Nayak, B. Das, A. Chakraborti, P. Kasari
This study represents the control of a stand-alone photovoltaic (PV) system. It mainly focuses on PV based single-phase asymmetrical multi-level converter (AMLC) for standalone applications with less semiconductor switches. A popular maximum power point (MPPT) algorithm i.e incremental conductance is used to track maximum power from the PV panel. Synchronized bidirectional buck-boost dc-dc converter (BDC) is used for power management between the battery and the load. BDC parameters are designed based on continuous conduction mode (CCM) of operation. Three individual PV sources with MPPT and BDC are connected to single-phase AMLC. The individual dc-link voltage of AMLC is controlled by BDC controller. The complete system presented here is developed in MATLAB Simulink platform. Validation of the results has been tested by OPAL- real-time results.
{"title":"Decoupled Control of Asymmetrical Multilevel VSI for Standalone PV Application","authors":"Sankarrao Ruttala, Subhasis Nayak, B. Das, A. Chakraborti, P. Kasari","doi":"10.1109/PEDES49360.2020.9379900","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379900","url":null,"abstract":"This study represents the control of a stand-alone photovoltaic (PV) system. It mainly focuses on PV based single-phase asymmetrical multi-level converter (AMLC) for standalone applications with less semiconductor switches. A popular maximum power point (MPPT) algorithm i.e incremental conductance is used to track maximum power from the PV panel. Synchronized bidirectional buck-boost dc-dc converter (BDC) is used for power management between the battery and the load. BDC parameters are designed based on continuous conduction mode (CCM) of operation. Three individual PV sources with MPPT and BDC are connected to single-phase AMLC. The individual dc-link voltage of AMLC is controlled by BDC controller. The complete system presented here is developed in MATLAB Simulink platform. Validation of the results has been tested by OPAL- real-time results.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117298779","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379605
P. Mishra, Stig Munk-Neilsen, R. Maheshwari
In this paper, some experimental results of an in-house designed and developed SiC MOSFETs based voltage source inverter (VSI) feeding an open-loop v/f controlled squirrel cage induction motor (SQIM) drive have been presented at different operating conditions, and the temperature of the heat sink has been measured to ascertain its safe long-run operation. A sinusoidal LC filter has also been designed and rotor-flux oriented control (RFOC) of SiC VSI fed SQIM drive with the filter has been implemented to control the SQIM. Active damping (AD) technique has been used to improve the stability of the drive at different operating points ensuring its satisfactory steady-state as well as dynamic performance.
{"title":"Testing of SiC Voltage Source Inverter fed Induction Motor Drive and its Control with Output Sinusoidal LC filter","authors":"P. Mishra, Stig Munk-Neilsen, R. Maheshwari","doi":"10.1109/PEDES49360.2020.9379605","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379605","url":null,"abstract":"In this paper, some experimental results of an in-house designed and developed SiC MOSFETs based voltage source inverter (VSI) feeding an open-loop v/f controlled squirrel cage induction motor (SQIM) drive have been presented at different operating conditions, and the temperature of the heat sink has been measured to ascertain its safe long-run operation. A sinusoidal LC filter has also been designed and rotor-flux oriented control (RFOC) of SiC VSI fed SQIM drive with the filter has been implemented to control the SQIM. Active damping (AD) technique has been used to improve the stability of the drive at different operating points ensuring its satisfactory steady-state as well as dynamic performance.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"397 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115991776","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379545
Sangeeta Kumari, A. Verma, S. N, U. Yaragatti, H. Pota
This paper a proposes a five-level transformer-less inverter based on common-ground-type topology is presented. In the common-ground-type utility neutral is directly tied with negative terminal of dc source, leads to the short-circuiting of PV-to-ground parasitic capacitance. Hence it solves variable common mode voltage and leakage current issues. Additionally, this topology has the inherent voltage boosting ability based on the principle of switched/auxiliary capacitor. A simplified logic gate-based PWM strategy and control algorithm is developed to maintain the voltage across auxiliary capacitor. A laboratory prototype is developed which proves the feasibility and merits of proposed inverter topology are presented.
{"title":"Transformer-less Common-Ground Inverter With Reduced Components","authors":"Sangeeta Kumari, A. Verma, S. N, U. Yaragatti, H. Pota","doi":"10.1109/PEDES49360.2020.9379545","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379545","url":null,"abstract":"This paper a proposes a five-level transformer-less inverter based on common-ground-type topology is presented. In the common-ground-type utility neutral is directly tied with negative terminal of dc source, leads to the short-circuiting of PV-to-ground parasitic capacitance. Hence it solves variable common mode voltage and leakage current issues. Additionally, this topology has the inherent voltage boosting ability based on the principle of switched/auxiliary capacitor. A simplified logic gate-based PWM strategy and control algorithm is developed to maintain the voltage across auxiliary capacitor. A laboratory prototype is developed which proves the feasibility and merits of proposed inverter topology are presented.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117207361","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379713
Menka Dubey, S. Sharma, R. Saxena, Bhim Singh
For the reformation of cost-effective HVAC (Heating, Ventilation & Air Conditioning) system in remote located areas, the solar energy supplied direct-drive employing induction motor (IM) is presented. In this system, a sliding mode control (SMC) algorithm is used to generate the reference speed for an IM drive. The control of the PV voltage is obtained under variation in climate conditions using an incremental conductance (IC) based maximum power point tracking (MPPT) algorithm. A mechanical sensorless based control is implemented for IM drive such that robustness and maintenance-free capabilities are improved for the HVAC system. Moreover, elimination of DC-DC conversion stage from the power circuit increases system efficiency and decreases the cost and size. Simulation results and test results on developed prototype using ds1104 controller with real-time loading conditions is obtained to validate the performance under different climate situation.
{"title":"Sliding Mode Controlled Solar Power Based Induction Motor Drive","authors":"Menka Dubey, S. Sharma, R. Saxena, Bhim Singh","doi":"10.1109/PEDES49360.2020.9379713","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379713","url":null,"abstract":"For the reformation of cost-effective HVAC (Heating, Ventilation & Air Conditioning) system in remote located areas, the solar energy supplied direct-drive employing induction motor (IM) is presented. In this system, a sliding mode control (SMC) algorithm is used to generate the reference speed for an IM drive. The control of the PV voltage is obtained under variation in climate conditions using an incremental conductance (IC) based maximum power point tracking (MPPT) algorithm. A mechanical sensorless based control is implemented for IM drive such that robustness and maintenance-free capabilities are improved for the HVAC system. Moreover, elimination of DC-DC conversion stage from the power circuit increases system efficiency and decreases the cost and size. Simulation results and test results on developed prototype using ds1104 controller with real-time loading conditions is obtained to validate the performance under different climate situation.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978012","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379338
Md. Abu Hanif Pramanik, T. K. Roy, Subarto Kumar Ghosh, M. Anower, Md. Apel Mahmud
In this paper, an advanced excitation control scheme based on the nonlinear partial feedback linearization technique is proposed to design an excitation controller for a synchronous generator in a single machine infinite bus (SMIB) system based on the seventh-order dynamical model. The proposed partial feedback linearizing scheme is applied for simplifying and linearizing this detailed dynamical model of synchronous generators in an SMIB system using nonlinear coordinate transformations that cancel nonlinearities within the system. A linear state feedback controller is then used to design for the partial feedback linearized synchronous generators. The final excitation control law include nonlinear terms and the linear state feedback control law where these nonlinear terms appear from nonlinear coordinate transformations that cancel nonlinearities for making the partial feedback linearized SMIB system independent of operating conditions. The stability of dynamics that do not transform during the feedback linearization process is also analyzed in this paper. Finally, simulation studies are carried out to evaluate the performance of the controller by applying the most severe three-phase short-circuit fault at the terminal of the synchronous generator as well as at the middle of a transmission line and results are compared with a traditional power system stabilizer (PSS).
{"title":"An Advanced Excitation Control Scheme for a Synchronous Generator in a Single Machine Infinite Bus System Based on Detailed Dynamical Models","authors":"Md. Abu Hanif Pramanik, T. K. Roy, Subarto Kumar Ghosh, M. Anower, Md. Apel Mahmud","doi":"10.1109/PEDES49360.2020.9379338","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379338","url":null,"abstract":"In this paper, an advanced excitation control scheme based on the nonlinear partial feedback linearization technique is proposed to design an excitation controller for a synchronous generator in a single machine infinite bus (SMIB) system based on the seventh-order dynamical model. The proposed partial feedback linearizing scheme is applied for simplifying and linearizing this detailed dynamical model of synchronous generators in an SMIB system using nonlinear coordinate transformations that cancel nonlinearities within the system. A linear state feedback controller is then used to design for the partial feedback linearized synchronous generators. The final excitation control law include nonlinear terms and the linear state feedback control law where these nonlinear terms appear from nonlinear coordinate transformations that cancel nonlinearities for making the partial feedback linearized SMIB system independent of operating conditions. The stability of dynamics that do not transform during the feedback linearization process is also analyzed in this paper. Finally, simulation studies are carried out to evaluate the performance of the controller by applying the most severe three-phase short-circuit fault at the terminal of the synchronous generator as well as at the middle of a transmission line and results are compared with a traditional power system stabilizer (PSS).","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125874660","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379766
Biswajit Saha, Bhim Singh
This paper deals with an economical approach of solar and battery-powered e-rickshaw employing a permanent magnet brushless DC (PMBLDC) motor with sensorless control. Here a lithium-ion (Li-ion) battery, having the benefits of fast charging, higher depth of discharge (DOD), and significantly lower maintenance cost, is preferred over the traditional lead-acid battery. However, it increases the vehicle's initial value, but it becomes cost-effective and economical in the long run. The improved driving range of the vehicle allows the owner to earn more by increasing the daily number of shifts. The regenerative braking strategy is also implemented that reduces carbon emission and a step towards green mobility. The energy regeneration technology significantly improves the driving range of the vehicle. The maximum power extraction of the solar PV panel is achieved by the Cuk converter, ensuring continuous input and output current. Thus, the life span of the battery is largely improved. To make the system robust and cost effective, a novel position sensorless control is also implemented. This system is easy to control and can be implemented in the field.
{"title":"An Economical Approach for Solar PV-Battery Based E-Rickshaw with Regenerative Braking using Sensorless BLDC Motor Drive","authors":"Biswajit Saha, Bhim Singh","doi":"10.1109/PEDES49360.2020.9379766","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379766","url":null,"abstract":"This paper deals with an economical approach of solar and battery-powered e-rickshaw employing a permanent magnet brushless DC (PMBLDC) motor with sensorless control. Here a lithium-ion (Li-ion) battery, having the benefits of fast charging, higher depth of discharge (DOD), and significantly lower maintenance cost, is preferred over the traditional lead-acid battery. However, it increases the vehicle's initial value, but it becomes cost-effective and economical in the long run. The improved driving range of the vehicle allows the owner to earn more by increasing the daily number of shifts. The regenerative braking strategy is also implemented that reduces carbon emission and a step towards green mobility. The energy regeneration technology significantly improves the driving range of the vehicle. The maximum power extraction of the solar PV panel is achieved by the Cuk converter, ensuring continuous input and output current. Thus, the life span of the battery is largely improved. To make the system robust and cost effective, a novel position sensorless control is also implemented. This system is easy to control and can be implemented in the field.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125901120","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379386
Nikshitha Rao A S, K. R, S. P, Bhim Singh
To enhance the harmonic mitigation capability of the multi-pulse rectifier, this paper proposes a multi-pulse rectifier based on harmonic mitigation technology at DC link. The conventional 12-pulse rectifier does not meet the IEEE-519 standard and hence the active power factor correction technique is employed to mitigate the harmonics. The proposed system employs two diode bridge rectifiers, each followed by a SEPIC converter, by controlling the SEPIC converter inductor current, the input line current of the rectifier can be approximated to a sinusoidal waveform. A zigzag connected autotransformer is used as a phase-shift transformer in order to provide a phase shift and inherently blocks the zero sequence components. This method reduces the total harmonic distortion and also decreases the size of the system. The proposed configuration is analyzed and simulated in the MATLAB Simulink and also implemented in laboratory. The results show that the proposed method improves the power quality by reducing the total harmonic distortion (THD) in the input line current.
{"title":"Power Factor Correction in Multi-pulse Rectifier Using Zigzag Auto-connected Transformer and Non-isolated SEPIC Converters","authors":"Nikshitha Rao A S, K. R, S. P, Bhim Singh","doi":"10.1109/PEDES49360.2020.9379386","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379386","url":null,"abstract":"To enhance the harmonic mitigation capability of the multi-pulse rectifier, this paper proposes a multi-pulse rectifier based on harmonic mitigation technology at DC link. The conventional 12-pulse rectifier does not meet the IEEE-519 standard and hence the active power factor correction technique is employed to mitigate the harmonics. The proposed system employs two diode bridge rectifiers, each followed by a SEPIC converter, by controlling the SEPIC converter inductor current, the input line current of the rectifier can be approximated to a sinusoidal waveform. A zigzag connected autotransformer is used as a phase-shift transformer in order to provide a phase shift and inherently blocks the zero sequence components. This method reduces the total harmonic distortion and also decreases the size of the system. The proposed configuration is analyzed and simulated in the MATLAB Simulink and also implemented in laboratory. The results show that the proposed method improves the power quality by reducing the total harmonic distortion (THD) in the input line current.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124876991","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 : 2020-12-16DOI: 10.1109/PEDES49360.2020.9379378
Vasudha Khubchandani, M. Veerachary
An extended bucking range buck-boost converter of order five, suitable for standalone applications is presented in this paper. It has the attribute of providing finely tuned bucking range with more degree of freedom on duty ratio. The converter provides successful buck-boost conversion with low source current ripple which results in reduced source side filtering requirements. The key feature of this converter is the extended bucking duty-ratio range. State-space and steady-state analysis is presented to identify the performance features of the proposed converter. For arriving at the voltage gain transformation ratio, continuous inductor current mode of operation is considered. L, C component equations are derived thereafter. Small-signal transfer function derived after state-space analysis is then obtained and controller designing is performed. A 24 to 42 Watt, 50 kHz prototype of the proposed converter is also built for experimentation. Load voltage adopted is either 15 or 42 V. For powering the converter prototype, a dc source supplying 24 V is used for both simulation and experimentation. Proposed converter's effectiveness is also verified experimentally.
{"title":"Extended Bucking Range Fifth-Order Buck-Boost Converter","authors":"Vasudha Khubchandani, M. Veerachary","doi":"10.1109/PEDES49360.2020.9379378","DOIUrl":"https://doi.org/10.1109/PEDES49360.2020.9379378","url":null,"abstract":"An extended bucking range buck-boost converter of order five, suitable for standalone applications is presented in this paper. It has the attribute of providing finely tuned bucking range with more degree of freedom on duty ratio. The converter provides successful buck-boost conversion with low source current ripple which results in reduced source side filtering requirements. The key feature of this converter is the extended bucking duty-ratio range. State-space and steady-state analysis is presented to identify the performance features of the proposed converter. For arriving at the voltage gain transformation ratio, continuous inductor current mode of operation is considered. L, C component equations are derived thereafter. Small-signal transfer function derived after state-space analysis is then obtained and controller designing is performed. A 24 to 42 Watt, 50 kHz prototype of the proposed converter is also built for experimentation. Load voltage adopted is either 15 or 42 V. For powering the converter prototype, a dc source supplying 24 V is used for both simulation and experimentation. Proposed converter's effectiveness is also verified experimentally.","PeriodicalId":124226,"journal":{"name":"2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128304416","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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