Pub Date : 2019-06-01DOI: 10.1109/PEDG.2019.8807724
Shengyu Wang, J. Fletcher
This paper presents a simple decentralized control technique based on relative gain array with an outside-in maximum power point tracking strategy (MPPT) for submodule differential power processing systems. The proposed strategy can achieve at least twice the convergence rate as the traditional one-way MPPT strategy. Furthermore, the proposed control technique has better utilization of control inputs and scales well in a long photovoltaic string. Moreover, the resultant symmetrical transfer functions enable easy controller tuning in a long string. The effectiveness of the strategy is validated by PLECS simulation.
{"title":"A Novel MPPT Strategy Based on Decentralized Control in subDPP Systems","authors":"Shengyu Wang, J. Fletcher","doi":"10.1109/PEDG.2019.8807724","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807724","url":null,"abstract":"This paper presents a simple decentralized control technique based on relative gain array with an outside-in maximum power point tracking strategy (MPPT) for submodule differential power processing systems. The proposed strategy can achieve at least twice the convergence rate as the traditional one-way MPPT strategy. Furthermore, the proposed control technique has better utilization of control inputs and scales well in a long photovoltaic string. Moreover, the resultant symmetrical transfer functions enable easy controller tuning in a long string. The effectiveness of the strategy is validated by PLECS simulation.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132905156","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807521
Na Chen, Hao Wang, Haijin Li, Dehong Xu
A resilient microgrid for high-surety power, known as Super Uninterruptable Power Supply (Super UPS), is an evolution of traditional UPS. It consists of multiple sources and multiple energy storage components. Besides high efficiency and low cost, reliable power conversion architecture is required. In this paper, a systemic and machine-based way to derive the optimal power conversion topology for the high-surety power supply with multiple sources and energy storage components is investigated. First is the generation of power supply architectures. The architectures are generated and the reasonable ones are selected based on their connectivity. Second part is the evaluation algorithm including cost evaluation, efficiency evaluation and availability evaluation of a given architecture. After evaluating tens of thousands of topologies of architectures, the optimal architectures can be selected. Finally, taking a real Super UPS as example, the proposed method is applied to find the optimal architectures.
{"title":"Generic Derivation of Optimal Architecture for A Resilient Microgrid with Graph Theory","authors":"Na Chen, Hao Wang, Haijin Li, Dehong Xu","doi":"10.1109/PEDG.2019.8807521","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807521","url":null,"abstract":"A resilient microgrid for high-surety power, known as Super Uninterruptable Power Supply (Super UPS), is an evolution of traditional UPS. It consists of multiple sources and multiple energy storage components. Besides high efficiency and low cost, reliable power conversion architecture is required. In this paper, a systemic and machine-based way to derive the optimal power conversion topology for the high-surety power supply with multiple sources and energy storage components is investigated. First is the generation of power supply architectures. The architectures are generated and the reasonable ones are selected based on their connectivity. Second part is the evaluation algorithm including cost evaluation, efficiency evaluation and availability evaluation of a given architecture. After evaluating tens of thousands of topologies of architectures, the optimal architectures can be selected. Finally, taking a real Super UPS as example, the proposed method is applied to find the optimal architectures.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121094009","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807680
Qing Gu, Liqiang Yuan, Shuxian Yi, Jintong Nie, Zhengming Zhao
Active neutral-point-clamped (ANPC) three-level dual active bridge DC-DC converter (DAB) has a good prospect in high-voltage and large-capacity applications. Different from the conventional two-level DAB, there are two alternative neutral current path in ANPC-DAB, providing the possibility to reduce the system losses by actively selecting the current commutation loops. Multi-pulse tests are implemented to compare the switching losses of different commutation loops, and the general criteria for optimizing the commutation loop are obtained. On the basis of this, the active control method for possible commutation cases with TPS control is proposed. The effectiveness of the proposed active control method is validated by experiments on a laboratory prototype.
{"title":"Active Selection of Current Commutation Loop for Hybrid Three-Level Dual Active Bridge DC-DC Converter with TPS Control","authors":"Qing Gu, Liqiang Yuan, Shuxian Yi, Jintong Nie, Zhengming Zhao","doi":"10.1109/PEDG.2019.8807680","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807680","url":null,"abstract":"Active neutral-point-clamped (ANPC) three-level dual active bridge DC-DC converter (DAB) has a good prospect in high-voltage and large-capacity applications. Different from the conventional two-level DAB, there are two alternative neutral current path in ANPC-DAB, providing the possibility to reduce the system losses by actively selecting the current commutation loops. Multi-pulse tests are implemented to compare the switching losses of different commutation loops, and the general criteria for optimizing the commutation loop are obtained. On the basis of this, the active control method for possible commutation cases with TPS control is proposed. The effectiveness of the proposed active control method is validated by experiments on a laboratory prototype.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115131226","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807555
Chun He, G. Xiao, Shuai Zhang, C. Peng, Zhihao Zhai, Zebin Yang
The well-known double line frequency ripple power is a critical issue for single-phase power electronics systems and considering some application of single-phase converter whose output power is not a constant, such as the photovoltaic and electric locomotive, this paper introduces an improved power decoupling strategy based on Newton interpolation with power tracking. A classical power decoupling topology is that a buck-boost converter is connected as an auxiliary circuit at the output of a single-phase converter. Traditional decoupling strategy of this topology is modified and the Newton interpolation prediction method is used to improve the control accuracy of the auxiliary circuit to realize the deadbeat control algorithm. When the output power of the system is changing, dynamic response of the single-phase PWM rectifier is a critical issue. This paper introduces power feed-forward control in the inner current control loop. Finally, the improved algorithm is compared with traditional power decoupling strategy in a series of simulation and the results shown that the proposed algorithm is correct and effective.
{"title":"An improved power decoupling strategy based on Newton interpolation for electric locomotive drive","authors":"Chun He, G. Xiao, Shuai Zhang, C. Peng, Zhihao Zhai, Zebin Yang","doi":"10.1109/PEDG.2019.8807555","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807555","url":null,"abstract":"The well-known double line frequency ripple power is a critical issue for single-phase power electronics systems and considering some application of single-phase converter whose output power is not a constant, such as the photovoltaic and electric locomotive, this paper introduces an improved power decoupling strategy based on Newton interpolation with power tracking. A classical power decoupling topology is that a buck-boost converter is connected as an auxiliary circuit at the output of a single-phase converter. Traditional decoupling strategy of this topology is modified and the Newton interpolation prediction method is used to improve the control accuracy of the auxiliary circuit to realize the deadbeat control algorithm. When the output power of the system is changing, dynamic response of the single-phase PWM rectifier is a critical issue. This paper introduces power feed-forward control in the inner current control loop. Finally, the improved algorithm is compared with traditional power decoupling strategy in a series of simulation and the results shown that the proposed algorithm is correct and effective.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114659934","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807752
Anh Tan Nguyen, Dong-Choon Lee
In this paper, a novel sensorless control scheme for double-fed induction generator (DFIG) wind turbine systems using the second-order generalized integrators (SOGIs) and frequency-locked loop (FLL) is proposed. The rotor speed is estimated based on the SOGIs, whereas the FLL is used to correct the estimated rotor position. Since the SOGI has a characteristic of adaptive filters, the rotor speed can be well estimated despite the existence of ripples in the rotor currents. The feasibility of the proposed method has been verified by simulation results.
{"title":"Sensorless Control Scheme of DFIG Wind Energy Conversion Systems Based on SOGIs and FLL","authors":"Anh Tan Nguyen, Dong-Choon Lee","doi":"10.1109/PEDG.2019.8807752","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807752","url":null,"abstract":"In this paper, a novel sensorless control scheme for double-fed induction generator (DFIG) wind turbine systems using the second-order generalized integrators (SOGIs) and frequency-locked loop (FLL) is proposed. The rotor speed is estimated based on the SOGIs, whereas the FLL is used to correct the estimated rotor position. Since the SOGI has a characteristic of adaptive filters, the rotor speed can be well estimated despite the existence of ripples in the rotor currents. The feasibility of the proposed method has been verified by simulation results.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122417109","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807610
Yongbin Wu, Sue Wang, L. Xiong, Donghui Zhang
The grid-connected photovoltaic power generation system (GPPGS) with high proportion of renewable energy has the ability to load balance. A strategy is proposed for GPPGS based on droop control. The electric torque analysis method (ETAM) is used to establish mathematical model of the system with DC voltage timescale (DVT) and analyze the influence law of inertia, damping and synchronization characteristics from the physical mechanism perspective. The research finds that the equivalent inertia, damping and synchronization parameters of the system are determined by the control parameters, structural parameters and steady-state operating point parameters. Changing the control parameters is the simplest and most flexible way to influence the inertia damping and synchronization ability of the system. The inertia characteristics of the system are greatly influenced by the control parameter Kp and enhanced with the increase of Kp. The damping characteristics of the system are obviously affected by the control parameter Dp and weakened with the increase of Dp. The synchronization effect of the system is only controlled by the parameter Ki and enhanced with the increase of Ki. The effectiveness and correctness of the analysis conclusion are verified by simulation.
{"title":"Analysis of Inertia and Damping Characteristics of Grid-connected Photovoltaic Power Generation System Based on Droop Control","authors":"Yongbin Wu, Sue Wang, L. Xiong, Donghui Zhang","doi":"10.1109/PEDG.2019.8807610","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807610","url":null,"abstract":"The grid-connected photovoltaic power generation system (GPPGS) with high proportion of renewable energy has the ability to load balance. A strategy is proposed for GPPGS based on droop control. The electric torque analysis method (ETAM) is used to establish mathematical model of the system with DC voltage timescale (DVT) and analyze the influence law of inertia, damping and synchronization characteristics from the physical mechanism perspective. The research finds that the equivalent inertia, damping and synchronization parameters of the system are determined by the control parameters, structural parameters and steady-state operating point parameters. Changing the control parameters is the simplest and most flexible way to influence the inertia damping and synchronization ability of the system. The inertia characteristics of the system are greatly influenced by the control parameter Kp and enhanced with the increase of Kp. The damping characteristics of the system are obviously affected by the control parameter Dp and weakened with the increase of Dp. The synchronization effect of the system is only controlled by the parameter Ki and enhanced with the increase of Ki. The effectiveness and correctness of the analysis conclusion are verified by simulation.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122587268","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807638
Wei Xiong, Jianwu Zeng, Liangcai Wu, Hao Cheng
This paper presents power management of a grid-connected photovoltaic (PV) inverter with battery energy storage system (BESS) for the residential application. The overall system is controlled at the grid level and converter level. At the grid level, the inverter is capable of regulating the power provided by the system controller. At the converter level, the inverter system with BESS can manage the power while considering the priorities of the battery or the grid, e.g., battery first and the grid first. Different controllers are designed to control the battery power, inverter power, and the PV power when their priorities are changed. The experimental results show that with the designed controllers, the system is not only capable of dealing with the local load and source change, but also can participate the system level control by regulating the amount power provided by the upper level controllers.
{"title":"Power Management of a Residential Hybrid Photovoltaic Inverter with Battery Energy Storage System","authors":"Wei Xiong, Jianwu Zeng, Liangcai Wu, Hao Cheng","doi":"10.1109/PEDG.2019.8807638","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807638","url":null,"abstract":"This paper presents power management of a grid-connected photovoltaic (PV) inverter with battery energy storage system (BESS) for the residential application. The overall system is controlled at the grid level and converter level. At the grid level, the inverter is capable of regulating the power provided by the system controller. At the converter level, the inverter system with BESS can manage the power while considering the priorities of the battery or the grid, e.g., battery first and the grid first. Different controllers are designed to control the battery power, inverter power, and the PV power when their priorities are changed. The experimental results show that with the designed controllers, the system is not only capable of dealing with the local load and source change, but also can participate the system level control by regulating the amount power provided by the upper level controllers.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129438102","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807729
Zhongyi Quan, Y. Li
Parallel converters have been widely applied in distributed generations. The use of LCL filter in parallel converters may induce several stability challenges due to the filter resonance. To eliminate the filter resonance related issues, this paper presents a system level design that allows the use of small L filter without sacrificing system current quality. The key of the design is to identify the required number of converters in parallel. The L-filter based design is applicable in systems with either common or separate DC links. In this paper, parallel two-level converters with separate DC links are considered in the design, showing that the required number of converters is irrelevant to system parameters like DC voltage or power rating. Multilevel converters are also included in the study. Furthermore, the behaviour of dominant harmonics in different load condition is also investigated, using common DC link type parallel converters as an example. Simulation results and preliminary experimental results are obtained and presented.
{"title":"Design of Parallel Converters with L-Filter and Reduced Filter Size","authors":"Zhongyi Quan, Y. Li","doi":"10.1109/PEDG.2019.8807729","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807729","url":null,"abstract":"Parallel converters have been widely applied in distributed generations. The use of LCL filter in parallel converters may induce several stability challenges due to the filter resonance. To eliminate the filter resonance related issues, this paper presents a system level design that allows the use of small L filter without sacrificing system current quality. The key of the design is to identify the required number of converters in parallel. The L-filter based design is applicable in systems with either common or separate DC links. In this paper, parallel two-level converters with separate DC links are considered in the design, showing that the required number of converters is irrelevant to system parameters like DC voltage or power rating. Multilevel converters are also included in the study. Furthermore, the behaviour of dominant harmonics in different load condition is also investigated, using common DC link type parallel converters as an example. Simulation results and preliminary experimental results are obtained and presented.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126060236","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807672
Hongxia Yu, Kun Zhang, Yuying Liu, J-C Dai, Zhengming Sun
Electric boiler and the combined heat and power (CHP) unit with thermal energy storage (TES) as the main means to solve the problem of wind curtailment into the micro-grid. In order to further eliminate wind curtailment, the wind curtailment coordination scheduling model with the lowest economic cost is established. Considering the influence of the electric boiler on the working state of CHP unit with TES, analyzing the operating characteristics of electric boiler and CHP with TES, calculating the wind power accommodating space for better eliminate wind curtailment, constraint on the maximum elimination of wind curtailment, the storage heat release power incremental model and the heating power model of the electric boiler is proposed. Taking differential evolution (DE) algorithm to solve the dispatch model. The results show that micro-grid scheduling model of electric boiler and CHP with TES can completely eliminate the wind and reduce the operating cost.
{"title":"Micro-grid Scheduling of Electric Boiler and CHP with Thermal Energy Storage Based on Wind Power Accommodating","authors":"Hongxia Yu, Kun Zhang, Yuying Liu, J-C Dai, Zhengming Sun","doi":"10.1109/PEDG.2019.8807672","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807672","url":null,"abstract":"Electric boiler and the combined heat and power (CHP) unit with thermal energy storage (TES) as the main means to solve the problem of wind curtailment into the micro-grid. In order to further eliminate wind curtailment, the wind curtailment coordination scheduling model with the lowest economic cost is established. Considering the influence of the electric boiler on the working state of CHP unit with TES, analyzing the operating characteristics of electric boiler and CHP with TES, calculating the wind power accommodating space for better eliminate wind curtailment, constraint on the maximum elimination of wind curtailment, the storage heat release power incremental model and the heating power model of the electric boiler is proposed. Taking differential evolution (DE) algorithm to solve the dispatch model. The results show that micro-grid scheduling model of electric boiler and CHP with TES can completely eliminate the wind and reduce the operating cost.","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114565068","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 : 2019-06-01DOI: 10.1109/PEDG.2019.8807542
Jose Luis Mata Ledesma, O. Carranza Castillo, R. González, Jaime José Rodríguez Rivas
In this paper, the implementation of sliding mode control SMC in a standalone inverter is analyzed and developed. This in order to improve the performance of the inverter when feeding various types of loads, such as purely resistive loads, resistive-inductive, resistive-capacitive loads and non-linear loads. The parameters that are evaluated are waveform of the output voltage, total harmonic distortion of the inverter output voltage, its response between load changes and disturbances in the load. The novel proposal in this paper is the implementation of the sliding modes control through the averaged control of the PWM modulator, because the sliding mode control for its best performance proposes an infinite switching frequency, which cannot be achieved in an inverter due to your power devices. For this reason, in this paper an integrated structure is plated which allows the sliding mode control to work at a fixed frequency. The results of the inverter's performance with the sliding mode control are compared with a PI, P-Resonant control in the current loop, where it is observed that the implementation of the integrated structure with the sliding mode control has better performance
本文对滑模控制SMC在独立逆变器中的实现进行了分析和开发。这是为了提高逆变器在馈电各种类型负载时的性能，如纯阻性负载、阻感性负载、阻容性负载和非线性负载。评估的参数包括输出电压的波形、逆变器输出电压的总谐波失真、其在负载变化和负载扰动之间的响应。本文提出的新颖方案是通过PWM调制器的平均控制来实现滑模控制，因为滑模控制的最佳性能提出了无限的开关频率，这在逆变器中由于功率器件的原因无法实现。为此，本文设计了一种集成结构，使滑模控制工作在固定频率下。将采用滑模控制的逆变器性能与电流环中的PI, p -谐振控制进行了比较，发现采用滑模控制的集成结构具有更好的性能
{"title":"Power quality of Single-Phase Standalone Inverter with linear and nonlinear load","authors":"Jose Luis Mata Ledesma, O. Carranza Castillo, R. González, Jaime José Rodríguez Rivas","doi":"10.1109/PEDG.2019.8807542","DOIUrl":"https://doi.org/10.1109/PEDG.2019.8807542","url":null,"abstract":"In this paper, the implementation of sliding mode control SMC in a standalone inverter is analyzed and developed. This in order to improve the performance of the inverter when feeding various types of loads, such as purely resistive loads, resistive-inductive, resistive-capacitive loads and non-linear loads. The parameters that are evaluated are waveform of the output voltage, total harmonic distortion of the inverter output voltage, its response between load changes and disturbances in the load. The novel proposal in this paper is the implementation of the sliding modes control through the averaged control of the PWM modulator, because the sliding mode control for its best performance proposes an infinite switching frequency, which cannot be achieved in an inverter due to your power devices. For this reason, in this paper an integrated structure is plated which allows the sliding mode control to work at a fixed frequency. The results of the inverter's performance with the sliding mode control are compared with a PI, P-Resonant control in the current loop, where it is observed that the implementation of the integrated structure with the sliding mode control has better performance","PeriodicalId":248726,"journal":{"name":"2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"04 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124589233","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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