Pub Date : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065540
Zhimeng Liu, Lifang Wang, Chengliang Yin, Yanjie Guo, Chengxuan Tao
This paper presents the analysis of constant voltage (CV) output wireless power transfer (WPT) system with a DC-DC converter load, including characteristics of system efficiency and output voltage. Firstly, the WPT system model with LCC/S compensation network and a DC-DC converter is established. Then, system transmission power and efficiency are deduced on the CV condition, and the boost circuit’s influence on the WPT system is analyzed. Finally, a 1kW WPT prototype is built and simulations are conducted. Experimental results have proved that a proper DC-DC converter can improve the WPT system’s efficiency and the WPT system can keep a constant output voltage.
{"title":"A Research on Constant Voltage Output Characteristics of Wireless Power Transfer System with A DC-DC Converter","authors":"Zhimeng Liu, Lifang Wang, Chengliang Yin, Yanjie Guo, Chengxuan Tao","doi":"10.1109/COBEP/SPEC44138.2019.9065540","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065540","url":null,"abstract":"This paper presents the analysis of constant voltage (CV) output wireless power transfer (WPT) system with a DC-DC converter load, including characteristics of system efficiency and output voltage. Firstly, the WPT system model with LCC/S compensation network and a DC-DC converter is established. Then, system transmission power and efficiency are deduced on the CV condition, and the boost circuit’s influence on the WPT system is analyzed. Finally, a 1kW WPT prototype is built and simulations are conducted. Experimental results have proved that a proper DC-DC converter can improve the WPT system’s efficiency and the WPT system can keep a constant output voltage.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87396979","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065298
Rafael Magalhães Nóbrega de Araújo, Hugo Álisson Alves da Costa, João T. de Carvalho Neto, Alexandre Magnus F. Guimarães, A. Salazar
The solar photovoltaic energy is one of the main renewable energy alternatives for countries to achieve a greater diversity in their energy matrix. It benefits from high levels of incident solar irradiance. However, the increase in temperature that comes with it, allied to other environmental variables lowers its overall yield. One cooling option is to use thermoelectric, or Peltier cells. This paper aims to study a hybrid system that seeks an increase of a photovoltaic module yield through its active cooling by a thermoelectric cell. Research strategies include evaluation of controlled temperature, number of thermoelectric cells for a given photovoltaic module, use of maximum power tracking algorithms together with control of the thermoelectric cells power supply to achieve an optimum point of operation. This study uses mathematical models, and simulations to show that the use of thermoelectric cells to cool off the photovoltaic module can increase its yield by up to 7% in the cases studied.
{"title":"Development of a Hybrid PV-Thermoelectric System","authors":"Rafael Magalhães Nóbrega de Araújo, Hugo Álisson Alves da Costa, João T. de Carvalho Neto, Alexandre Magnus F. Guimarães, A. Salazar","doi":"10.1109/COBEP/SPEC44138.2019.9065298","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065298","url":null,"abstract":"The solar photovoltaic energy is one of the main renewable energy alternatives for countries to achieve a greater diversity in their energy matrix. It benefits from high levels of incident solar irradiance. However, the increase in temperature that comes with it, allied to other environmental variables lowers its overall yield. One cooling option is to use thermoelectric, or Peltier cells. This paper aims to study a hybrid system that seeks an increase of a photovoltaic module yield through its active cooling by a thermoelectric cell. Research strategies include evaluation of controlled temperature, number of thermoelectric cells for a given photovoltaic module, use of maximum power tracking algorithms together with control of the thermoelectric cells power supply to achieve an optimum point of operation. This study uses mathematical models, and simulations to show that the use of thermoelectric cells to cool off the photovoltaic module can increase its yield by up to 7% in the cases studied.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87400050","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065728
Victor E. S. Barbosa, R. A. S. Kraemer, E. Carati, J. D. da Costa, R. Cardoso, C. Stein
This paper presents a time and event based control strategy that guarantees the connection and operation of the grid-tied inverter to the IEEE 1547-2018 standard. The control structure is composed by a synchronization algorithm and current controller with active damping based on capacitor current estimation. This structure guarantees the high performance of the real time control presented in this paper. Moreover, the proposed control structure also includes the distributed generation (DG) manager, which is responsible for determining the operation mode of DG system: Connection; Active power limitation (Normal operation); Reactive power limitation; Dispatch interruption; and, Disconnection. Besides, flow charts are presented in order to describe the connection and disconnection procedures, as well the modes of operation. The proposed strategy is implemented in a DSP (Digital Signal Processor) connected to a Hardware in the Loop (HIL) system. Real time domain emulations are performed considering a 15 kW three-phase grid-tied inverter and the results are discussed.
{"title":"Event Manager and Control Structure for High Performance Three-Phase Grid-tied Inverters","authors":"Victor E. S. Barbosa, R. A. S. Kraemer, E. Carati, J. D. da Costa, R. Cardoso, C. Stein","doi":"10.1109/COBEP/SPEC44138.2019.9065728","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065728","url":null,"abstract":"This paper presents a time and event based control strategy that guarantees the connection and operation of the grid-tied inverter to the IEEE 1547-2018 standard. The control structure is composed by a synchronization algorithm and current controller with active damping based on capacitor current estimation. This structure guarantees the high performance of the real time control presented in this paper. Moreover, the proposed control structure also includes the distributed generation (DG) manager, which is responsible for determining the operation mode of DG system: Connection; Active power limitation (Normal operation); Reactive power limitation; Dispatch interruption; and, Disconnection. Besides, flow charts are presented in order to describe the connection and disconnection procedures, as well the modes of operation. The proposed strategy is implemented in a DSP (Digital Signal Processor) connected to a Hardware in the Loop (HIL) system. Real time domain emulations are performed considering a 15 kW three-phase grid-tied inverter and the results are discussed.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87665611","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065704
F. Khera, C. Klumpner, P. Wheeler
This paper proposes the integration of a Z-source network with the modular multilevel converter (MMC) to add voltage boosting capability to a voltage step down converter. To limit the increase in complexity, the proposed Z-source modular multilevel converter uses a single Z-source network that is interconnected between the corresponding terminals of the DC- input source and the DC-link terminals of the MMC. The authors previously presented a modulation technique for quasi Z-source MMC (qZS-MMC) referred to as the reduced inserted cells (RICs) PWM but a large size inductor for the two quasi Z- source networks were needed. This paper shows that utilising the RICs scheme with the-source MMC is more advantageous compared with the qZS-MMC. The operation principle of the Z- source MMC using RICs scheme and the derivation of key design parameters is presented in this paper by analysing the relevant current and voltage waveforms. The simulation results verify the operation and showcase the excellent waveform performance of the proposed topology.
{"title":"Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting","authors":"F. Khera, C. Klumpner, P. Wheeler","doi":"10.1109/COBEP/SPEC44138.2019.9065704","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065704","url":null,"abstract":"This paper proposes the integration of a Z-source network with the modular multilevel converter (MMC) to add voltage boosting capability to a voltage step down converter. To limit the increase in complexity, the proposed Z-source modular multilevel converter uses a single Z-source network that is interconnected between the corresponding terminals of the DC- input source and the DC-link terminals of the MMC. The authors previously presented a modulation technique for quasi Z-source MMC (qZS-MMC) referred to as the reduced inserted cells (RICs) PWM but a large size inductor for the two quasi Z- source networks were needed. This paper shows that utilising the RICs scheme with the-source MMC is more advantageous compared with the qZS-MMC. The operation principle of the Z- source MMC using RICs scheme and the derivation of key design parameters is presented in this paper by analysing the relevant current and voltage waveforms. The simulation results verify the operation and showcase the excellent waveform performance of the proposed topology.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83969812","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065739
T. Estrabis, Raymundo Cordero García, E. Batista, Cristiano Quevedo Andrea, Márcio Afonso Soleira Grassi
A resolver is an angular position sensor used in applications that demands robustness and reliability, such as electric vehicles. However, getting the angular position from resolver output signals is a difficult task, and many algorithms were proposed to achieve that task. This paper describes the application of model predictive control (MPC) to get the angular position from resolver signals. Synchronous demodulation is used to get the envelopes of the resolver outputs and get the estimation error. The structure of the conventional model predictive controller was modified to be used as an angle tracking observer (ATO). Simulations show the performance of the proposed approach. According to the bibliographic review of the authors, it is the first time that model predictive control is applied as an observer to get the angular position from resolver signals.
{"title":"Application of Model Predictive Control in a Resolver-to-Digital Converter","authors":"T. Estrabis, Raymundo Cordero García, E. Batista, Cristiano Quevedo Andrea, Márcio Afonso Soleira Grassi","doi":"10.1109/COBEP/SPEC44138.2019.9065739","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065739","url":null,"abstract":"A resolver is an angular position sensor used in applications that demands robustness and reliability, such as electric vehicles. However, getting the angular position from resolver output signals is a difficult task, and many algorithms were proposed to achieve that task. This paper describes the application of model predictive control (MPC) to get the angular position from resolver signals. Synchronous demodulation is used to get the envelopes of the resolver outputs and get the estimation error. The structure of the conventional model predictive controller was modified to be used as an angle tracking observer (ATO). Simulations show the performance of the proposed approach. According to the bibliographic review of the authors, it is the first time that model predictive control is applied as an observer to get the angular position from resolver signals.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82756606","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065299
Rafael de Farias Campos, J. de Oliveira, A. Nied
This paper discusses two methods for asymmetrical two-phase induction motor control. The direct rotor field oriented control (DRFOC) and the indirect rotor field control (IRFOC) methods are investigated. Both control strategies were implemented in the same hardware with little modifications in the control algorithm. However, the intrinsic model asymmetry causes extra coupling between the stator windings. To use the field-orientated method, the asymmetry must be eliminated by using a transformation based on the mutual inductances. Experimental investigation was carried out and a comparative analysis of the performance of the two methods of control is presented. Based on experimental results of the DRFOC and IRFOC control systems, it is shown that the speed control and the flux control present a fast response even under load disturbance. In addition, the complexity for implementing both systems is identical. Although some questions were raised concerning the use of such transformation, it is still a viable solution as is demonstrated by the results.
{"title":"Analysis and Comparison of the Dynamic Response of Direct and Indirect Rotor Flux Control Applied to an Asymmetrical Two-Phase Induction Motor","authors":"Rafael de Farias Campos, J. de Oliveira, A. Nied","doi":"10.1109/COBEP/SPEC44138.2019.9065299","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065299","url":null,"abstract":"This paper discusses two methods for asymmetrical two-phase induction motor control. The direct rotor field oriented control (DRFOC) and the indirect rotor field control (IRFOC) methods are investigated. Both control strategies were implemented in the same hardware with little modifications in the control algorithm. However, the intrinsic model asymmetry causes extra coupling between the stator windings. To use the field-orientated method, the asymmetry must be eliminated by using a transformation based on the mutual inductances. Experimental investigation was carried out and a comparative analysis of the performance of the two methods of control is presented. Based on experimental results of the DRFOC and IRFOC control systems, it is shown that the speed control and the flux control present a fast response even under load disturbance. In addition, the complexity for implementing both systems is identical. Although some questions were raised concerning the use of such transformation, it is still a viable solution as is demonstrated by the results.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89930931","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065368
Luiz Felipe Corrêa de Sá Santos Ribeiro, F. Dicler, L. Rolim, M. Aredes
Modified Nodal Analysis(MNA) is a generalized method of discrete linear circuit analysis as a matrix equation, in which the matrix order is the sum of the number of nodes and the number of voltage sources, it also have additional lines for dynamic elements, such as capacitors and inductors, but for this work these lines were kept implicit using Nodal Analysis’ equations for historic sources. As this order grows, the computational effort for solving the equation grows to the square of its size. Therefore, optimizations are in place to better utilize the processing power of a hardware, so that more complex circuits can fit in less powerful simulators, avoiding problems associated with high values of time step, such as mathematical inaccuracy and instability. This paper presents a boost converter and a PI controller, each implemented in a separate Texas Instruments’ F28377S, assembled in a Hardware in the Loop configuration. The MNA is used for the plant discretization and a matrix multiplier is developed to solve it. This multiplier is then optimized with two methods: sparse matrix handling and a parallel multiplier. The sparsity is dealt with by storing the matrix in a Compressed Sparse Row(CSR) format and adjusting the multiplier. The parallel matrix multiplier is implemented using both the Control Law Accelerator(CLA) and the main CPU to reduce the processing time. The results presented by the comparison of each program shows that the The results are drawn from each multiplier and comparison is made between them, leading to a conclusion of the benefits of such implementation.
{"title":"Real-Time implementation of a DC converter using Modified Nodal Analysis, Sparsity Handling and Parallelism on a DSP platform","authors":"Luiz Felipe Corrêa de Sá Santos Ribeiro, F. Dicler, L. Rolim, M. Aredes","doi":"10.1109/COBEP/SPEC44138.2019.9065368","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065368","url":null,"abstract":"Modified Nodal Analysis(MNA) is a generalized method of discrete linear circuit analysis as a matrix equation, in which the matrix order is the sum of the number of nodes and the number of voltage sources, it also have additional lines for dynamic elements, such as capacitors and inductors, but for this work these lines were kept implicit using Nodal Analysis’ equations for historic sources. As this order grows, the computational effort for solving the equation grows to the square of its size. Therefore, optimizations are in place to better utilize the processing power of a hardware, so that more complex circuits can fit in less powerful simulators, avoiding problems associated with high values of time step, such as mathematical inaccuracy and instability. This paper presents a boost converter and a PI controller, each implemented in a separate Texas Instruments’ F28377S, assembled in a Hardware in the Loop configuration. The MNA is used for the plant discretization and a matrix multiplier is developed to solve it. This multiplier is then optimized with two methods: sparse matrix handling and a parallel multiplier. The sparsity is dealt with by storing the matrix in a Compressed Sparse Row(CSR) format and adjusting the multiplier. The parallel matrix multiplier is implemented using both the Control Law Accelerator(CLA) and the main CPU to reduce the processing time. The results presented by the comparison of each program shows that the The results are drawn from each multiplier and comparison is made between them, leading to a conclusion of the benefits of such implementation.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90202306","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065887
S. Toledo, M. Rivera, E. Maqueda, M. Ayala, J. Pacher, C. Romero, R. Gregor, T. Dragičević, P. Wheeler
Increasing world electrical energy demand make necessary to develop new efficient and reliable schemes for power injection to the existing grid under distributed generation frames. In this work a novel DC-AC control scheme is proposed, which is based on one hand, on several 2L-VSI working together as a multi-modular converter in a parallel switching connection topology in the power converter stage and, in the other hand, a control strategy using two loops, an internal based on predictive voltage control and another external applying a PR current control, achieving THD levels lower than 1% for the injected current, accomplishing with the international standards for these kind of applications.
{"title":"Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control","authors":"S. Toledo, M. Rivera, E. Maqueda, M. Ayala, J. Pacher, C. Romero, R. Gregor, T. Dragičević, P. Wheeler","doi":"10.1109/COBEP/SPEC44138.2019.9065887","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065887","url":null,"abstract":"Increasing world electrical energy demand make necessary to develop new efficient and reliable schemes for power injection to the existing grid under distributed generation frames. In this work a novel DC-AC control scheme is proposed, which is based on one hand, on several 2L-VSI working together as a multi-modular converter in a parallel switching connection topology in the power converter stage and, in the other hand, a control strategy using two loops, an internal based on predictive voltage control and another external applying a PR current control, achieving THD levels lower than 1% for the injected current, accomplishing with the international standards for these kind of applications.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91540247","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065318
J. F. Guerreiro, Hildo Guillardi Júnior, J. Pomilio
Nowadays, power electronics inverters are everywhere, from customer electronics to industry applications. In the heart of these converters there are discrete semiconductor switches. Most applications make use of Insulated Gate Bipolar Transistors (IGBTs), which are a first choice due to their switching capabilities (from several thousands of hertz to some tens of kilohertz’s) and power (from some tens of watts to megawatts). However, some applications may require faster switching frequencies, such as aeronautical and automotive electrical systems. In this scenario, FET-Based devices are a suitable choice due to their extremely fast switching characteristics. Yet, high speed switching creates problematic effects such as voltage and current oscillations which are disparately addressed in literature. Thus, this work incorporates various design advice to elaborate a methodology for the design of a 5kVA - 100kHz FET-Based full-bridge inverter. Recommendations are given for components selection, gate driver realization and layout of the power tracks. Simulations and experimental results are shown to validate the proposed methodology.
{"title":"Design Procedures and Prototyping of a Full-Bridge High Frequency Power Inverter","authors":"J. F. Guerreiro, Hildo Guillardi Júnior, J. Pomilio","doi":"10.1109/COBEP/SPEC44138.2019.9065318","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065318","url":null,"abstract":"Nowadays, power electronics inverters are everywhere, from customer electronics to industry applications. In the heart of these converters there are discrete semiconductor switches. Most applications make use of Insulated Gate Bipolar Transistors (IGBTs), which are a first choice due to their switching capabilities (from several thousands of hertz to some tens of kilohertz’s) and power (from some tens of watts to megawatts). However, some applications may require faster switching frequencies, such as aeronautical and automotive electrical systems. In this scenario, FET-Based devices are a suitable choice due to their extremely fast switching characteristics. Yet, high speed switching creates problematic effects such as voltage and current oscillations which are disparately addressed in literature. Thus, this work incorporates various design advice to elaborate a methodology for the design of a 5kVA - 100kHz FET-Based full-bridge inverter. Recommendations are given for components selection, gate driver realization and layout of the power tracks. Simulations and experimental results are shown to validate the proposed methodology.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80784902","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 : 2019-12-01DOI: 10.1109/COBEP/SPEC44138.2019.9065296
Gabriel Ubirajara de Carvalho, Gustavo Weber Denardin, R. Cardoso, C. F. Moraes
This paper presents the design, analysis and experimental testing of a SRF-PLL based algorithm for positive-sequence synchrophasor measurements in compliance with the IEEE C37.118.1-2011 and C37.118.1a-2014 standards. The proposed approach consists of a three-stage algorithm, being the first one a three-phase demodulation, which detach the positive-sequence from the negative sequence signal in the frequency domain, as well as removes the zero sequence. The second stage is a finite impulse response filter (FIR) that is applied in order to improve the noise and interference rejection. Such class of digital filters was chosen by its characteristics of linear phase and constant group delay. Finally, the last stage is carried out by a synchronous reference frame phase-locked loop featuring magnitude normalization and proportional-integral controller, which estimates amplitude, phase, frequency and rate of change of frequency. The experimental results obtained by a test platform show that steady-state criteria are met.
{"title":"Design and Test of a SRF-PLL Based Algorithm for Positive-Sequence Synchrophasor Measurements","authors":"Gabriel Ubirajara de Carvalho, Gustavo Weber Denardin, R. Cardoso, C. F. Moraes","doi":"10.1109/COBEP/SPEC44138.2019.9065296","DOIUrl":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065296","url":null,"abstract":"This paper presents the design, analysis and experimental testing of a SRF-PLL based algorithm for positive-sequence synchrophasor measurements in compliance with the IEEE C37.118.1-2011 and C37.118.1a-2014 standards. The proposed approach consists of a three-stage algorithm, being the first one a three-phase demodulation, which detach the positive-sequence from the negative sequence signal in the frequency domain, as well as removes the zero sequence. The second stage is a finite impulse response filter (FIR) that is applied in order to improve the noise and interference rejection. Such class of digital filters was chosen by its characteristics of linear phase and constant group delay. Finally, the last stage is carried out by a synchronous reference frame phase-locked loop featuring magnitude normalization and proportional-integral controller, which estimates amplitude, phase, frequency and rate of change of frequency. The experimental results obtained by a test platform show that steady-state criteria are met.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73039664","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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