This paper presents an alternative approach to voltage source converter based multi-terminal direct current (VSC-MTDC) performance analysis. The approach is to build a small-scale physical model of the VSC-MTDC transmission system, with renewable energies and integration devices. The platform is capable of investigating the operating performance, renewable energy integration, and control strategies of VSC-MTDC. Furthermore, it can be used to investigate the influences of renewable energy's random variation on VSC-MTDC system. Such complex phenomenon is very difficult to be investigated using digital simulation methods. Finally, simulations under normal operation and under the situation of wind power variation are carried out, and the results prove the feasibility and stability of the designed dynamic simulator.
{"title":"Dynamic simulator for multi-terminal direct current transmission system","authors":"Zhijie Liu, Kejun Li, Xin-han Meng, Weijen Lee, Zhuo-di Wang, Kaiqi Sun","doi":"10.1109/IAS.2016.7731969","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731969","url":null,"abstract":"This paper presents an alternative approach to voltage source converter based multi-terminal direct current (VSC-MTDC) performance analysis. The approach is to build a small-scale physical model of the VSC-MTDC transmission system, with renewable energies and integration devices. The platform is capable of investigating the operating performance, renewable energy integration, and control strategies of VSC-MTDC. Furthermore, it can be used to investigate the influences of renewable energy's random variation on VSC-MTDC system. Such complex phenomenon is very difficult to be investigated using digital simulation methods. Finally, simulations under normal operation and under the situation of wind power variation are carried out, and the results prove the feasibility and stability of the designed dynamic simulator.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114915737","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}
In this paper, a spectral model optimization based method for the analysis of harmonics and interharmonics produced by electric arc furnace (EAF) installations is presented. Detecting the changes occurring in the frequency spectrum of the EAF voltages fast and accurately has crucial importance to eliminate the undesired effects of harmonics and interharmonics using advanced technology compensation systems such as active power filters, synchronous static compensators, energy storage systems, and etc. The aim of the research work presented here is to reduce the spectral leakage effects experienced by Fourier analysis based methods by estimating the spectral model parameters using nonlinear least squares. The Fourier spectrum of the signal is used as apriori information; however, the proposed model does not suffer from the spectral leakage problems encountered by the Fourier analysis based methods in case of fundamental frequency variation, which frequently occurs in the existence of EAF plants in an electrical system. Moreover, the proposed model permits frequency detection at a much higher resolution than the Fourier analysis based methods. The proposed method has been tested on both synthetic and field data and it has been shown that it is able to detect frequency components and the corresponding amplitudes and phases of harmonics and interharmonics with high accuracy for EAF plants.
{"title":"Harmonics and interharmonics analysis of electrical arc furnaces based on spectral model optimization with high resolution windowing","authors":"Yunus Emre Vatankulu, Zekeriya Senturk, Özgül Salor-Durna","doi":"10.1109/IAS.2016.7731905","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731905","url":null,"abstract":"In this paper, a spectral model optimization based method for the analysis of harmonics and interharmonics produced by electric arc furnace (EAF) installations is presented. Detecting the changes occurring in the frequency spectrum of the EAF voltages fast and accurately has crucial importance to eliminate the undesired effects of harmonics and interharmonics using advanced technology compensation systems such as active power filters, synchronous static compensators, energy storage systems, and etc. The aim of the research work presented here is to reduce the spectral leakage effects experienced by Fourier analysis based methods by estimating the spectral model parameters using nonlinear least squares. The Fourier spectrum of the signal is used as apriori information; however, the proposed model does not suffer from the spectral leakage problems encountered by the Fourier analysis based methods in case of fundamental frequency variation, which frequently occurs in the existence of EAF plants in an electrical system. Moreover, the proposed model permits frequency detection at a much higher resolution than the Fourier analysis based methods. The proposed method has been tested on both synthetic and field data and it has been shown that it is able to detect frequency components and the corresponding amplitudes and phases of harmonics and interharmonics with high accuracy for EAF plants.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"29 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131804890","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731881
Nanfang Yang, B. Nahid-Mobarakeh, A. Corne, Jean-Philippe Martin
The predictive direct current control (PDCC) select one of the available voltage vector which minimizes the current error. The limited choice makes the maximum current error is pretty large and thus considerable current ripples. In this paper, the voltage error of one-vector-based PDCC, two-voltage-based PDCC are analyzed. A multiple-vector-based PDCC is proposed, which uses the combination of two nearest voltage vectors and one zero voltage vector. The voltage vectors are similar as that of SVPWM, but the principle is different. It can further reduce the current error and thus current ripples. Besides, it has the flexibility to adjust the order of the voltage vectors to obtained lower average switching frequency compared to SVPWM.
{"title":"Multiple-vector-based predictive direct current control for a wound rotor synchronous machine drive","authors":"Nanfang Yang, B. Nahid-Mobarakeh, A. Corne, Jean-Philippe Martin","doi":"10.1109/IAS.2016.7731881","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731881","url":null,"abstract":"The predictive direct current control (PDCC) select one of the available voltage vector which minimizes the current error. The limited choice makes the maximum current error is pretty large and thus considerable current ripples. In this paper, the voltage error of one-vector-based PDCC, two-voltage-based PDCC are analyzed. A multiple-vector-based PDCC is proposed, which uses the combination of two nearest voltage vectors and one zero voltage vector. The voltage vectors are similar as that of SVPWM, but the principle is different. It can further reduce the current error and thus current ripples. Besides, it has the flexibility to adjust the order of the voltage vectors to obtained lower average switching frequency compared to SVPWM.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128368001","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731839
Lin-Yu Lu, C. Chu, Tzu-Wei Yeh
A back-EMF model reference adaptive system (MRAS)-based sensorless control scheme is proposed for a grid-connected doubly-fed induction generator (DFIG). Based on the stator-side and the rotor-side dynamic models of the DFIG, both the reference model and the adaptive model of the proposed back-EMF-based DFIG are investigated. The adaptation mechanism of the proposed controller and the stability of the closed-loop system are derived by Popov's criterion. Real-time simulation studies are performed with detailed dynamics including PWM synthesis. A 2.2 kW DFIG experimental platform is constructed to validate the proposed method by hardware experiments. Both results indicate that proper speed estimations can be achieved by the proposed method and will not be affected by small variations either in the rotor speed or in the output power of the DFIG.
{"title":"Model reference adaptive back-EMF estimations for sensorless control of grid-connected doubly-fed induction generators","authors":"Lin-Yu Lu, C. Chu, Tzu-Wei Yeh","doi":"10.1109/IAS.2016.7731839","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731839","url":null,"abstract":"A back-EMF model reference adaptive system (MRAS)-based sensorless control scheme is proposed for a grid-connected doubly-fed induction generator (DFIG). Based on the stator-side and the rotor-side dynamic models of the DFIG, both the reference model and the adaptive model of the proposed back-EMF-based DFIG are investigated. The adaptation mechanism of the proposed controller and the stability of the closed-loop system are derived by Popov's criterion. Real-time simulation studies are performed with detailed dynamics including PWM synthesis. A 2.2 kW DFIG experimental platform is constructed to validate the proposed method by hardware experiments. Both results indicate that proper speed estimations can be achieved by the proposed method and will not be affected by small variations either in the rotor speed or in the output power of the DFIG.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116580562","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731874
G. Chavan, S. Bhattacharya
This paper presents a novel control scheme for a Cascaded H-bridge (CHB) converter-based Static Series Synchronous Compensator (SSSC). The SSSC is a Flexible AC Transmission Systems (FACTS) device which is a Voltage Source Converter (VSC) connected in series with the transmission line and is primarily used for real power flow control over that transmission line. SSSCs can find applications in integration of renewable energy resources within modern power systems since they can allow transmission lines to transfer power beyond their stability limits. Further, SSSCs can be used as power oscillation damping (POD) controllers within an area. CHB-based SSSCs are advantageous as compared to conventional SSSCs since they eliminate the series transformer which usually interconnects the VSC with the transmission line. This paper proposes a DC capacitor charge-balancing algorithm for the CHB VSC specific to the SSSC operation. An eleven-level CHB-based SSSC was implemented in PSCAD along with the proposed voltage-balancing algorithms and its performance was evaluated in controlling real power flow along the transmission line.
{"title":"A novel control algorithm for a static series synchronous compensator using a Cascaded H-bridge converter","authors":"G. Chavan, S. Bhattacharya","doi":"10.1109/IAS.2016.7731874","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731874","url":null,"abstract":"This paper presents a novel control scheme for a Cascaded H-bridge (CHB) converter-based Static Series Synchronous Compensator (SSSC). The SSSC is a Flexible AC Transmission Systems (FACTS) device which is a Voltage Source Converter (VSC) connected in series with the transmission line and is primarily used for real power flow control over that transmission line. SSSCs can find applications in integration of renewable energy resources within modern power systems since they can allow transmission lines to transfer power beyond their stability limits. Further, SSSCs can be used as power oscillation damping (POD) controllers within an area. CHB-based SSSCs are advantageous as compared to conventional SSSCs since they eliminate the series transformer which usually interconnects the VSC with the transmission line. This paper proposes a DC capacitor charge-balancing algorithm for the CHB VSC specific to the SSSC operation. An eleven-level CHB-based SSSC was implemented in PSCAD along with the proposed voltage-balancing algorithms and its performance was evaluated in controlling real power flow along the transmission line.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114945246","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731852
A. Mohamed, A. Berzoy, Felipe G. N. de Almeida, O. Mohammed
Electric vehicles (EV) can act as an energy consuming system or an energy resource in the concept known as vehicle-to-grid (V2G) and grid-to-vehicle (G2V). The bidirectional wireless charging system is an effective choice for this application, since it provides automatic, reliable and safe operation. This paper presents evaluation analysis for the steady-state performance of bidirectional inductive wireless power transfer (BIWPT) system. The analysis is presented here for three different compensation configurations; LC-series, LC-parallel and LCL-topology. Moreover, the steady-state equivalent circuit-based mathematical models for all topologies are developed. These models were used to determine the system performance during V2G and G2V operations. The proposed models were verified both in simulation and experiment. The proposed models provide accurate estimation for the system performance under different operating and control conditions.
{"title":"Steady-state performance assessment of different compensation topologies in two-way IWPT system for EV ancillary services","authors":"A. Mohamed, A. Berzoy, Felipe G. N. de Almeida, O. Mohammed","doi":"10.1109/IAS.2016.7731852","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731852","url":null,"abstract":"Electric vehicles (EV) can act as an energy consuming system or an energy resource in the concept known as vehicle-to-grid (V2G) and grid-to-vehicle (G2V). The bidirectional wireless charging system is an effective choice for this application, since it provides automatic, reliable and safe operation. This paper presents evaluation analysis for the steady-state performance of bidirectional inductive wireless power transfer (BIWPT) system. The analysis is presented here for three different compensation configurations; LC-series, LC-parallel and LCL-topology. Moreover, the steady-state equivalent circuit-based mathematical models for all topologies are developed. These models were used to determine the system performance during V2G and G2V operations. The proposed models were verified both in simulation and experiment. The proposed models provide accurate estimation for the system performance under different operating and control conditions.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128899050","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731947
S. Saleh
This paper presents the analysis, development, and implementation of a new controller for micro-grid systems. The developed controller is structured to produce command values for the active and reactive powers (PC and QC), and d-q-axis voltage components (vdC and vqC) for each bus in the micro-grid system at hand. Values for PC, QC, vdC, and vqC are obtained using a power flow formulated in the d-q-axis frame. The d-q-axis power flow (DQPF) produces values for PC,QC, vdC, and vqC that can meet load demands, respond to variations in power generation within the micro-grid, and accommodate the mode of operating the micro-grid (interconnected or stand-alone), while maintaining the voltage and frequency stability. The DQPF-based controller is implemented for performance evaluation using a 5-bus micro-grid system operated under various conditions, including changes in power generation, step changes in load demands, and changes in mode of operation. Test results demonstrate that the DQPF-based controller can offer simple implementation, accurate and fast responses, and negligible sensitivity to the mode of micro-grid operation.
{"title":"The development of a power flow-based controller for micro-grid systems","authors":"S. Saleh","doi":"10.1109/IAS.2016.7731947","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731947","url":null,"abstract":"This paper presents the analysis, development, and implementation of a new controller for micro-grid systems. The developed controller is structured to produce command values for the active and reactive powers (P<sub>C</sub> and Q<sub>C</sub>), and d-q-axis voltage components (v<sub>dC</sub> and v<sub>qC</sub>) for each bus in the micro-grid system at hand. Values for P<sub>C</sub>, Q<sub>C</sub>, v<sub>dC</sub>, and v<sub>qC</sub> are obtained using a power flow formulated in the d-q-axis frame. The d-q-axis power flow (DQPF) produces values for P<sub>C</sub>,Q<sub>C</sub>, v<sub>dC</sub>, and v<sub>qC</sub> that can meet load demands, respond to variations in power generation within the micro-grid, and accommodate the mode of operating the micro-grid (interconnected or stand-alone), while maintaining the voltage and frequency stability. The DQPF-based controller is implemented for performance evaluation using a 5-bus micro-grid system operated under various conditions, including changes in power generation, step changes in load demands, and changes in mode of operation. Test results demonstrate that the DQPF-based controller can offer simple implementation, accurate and fast responses, and negligible sensitivity to the mode of micro-grid operation.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"22 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875960","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731906
Mehmet Turkuzan, Özgül Salor-Durna
In this paper, a new flickermeter, designed to calculate flicker severity by using lamp illumination as its input, which complies with the IEC flickermeter for the analysis of flicker in the electricity system caused by iron and steel (I&S) plants, is described. According to the IEC Standard 61000-4-15, flicker is calculated from the voltage and based on the assumption that this voltage feeds an incandescent lamp. In this research work, a system measuring illumination of the lamps has been developed and the illumination of three different types of bulbs, incandescent lamp, compact fluorescent lamp (CFL) and light emitting diode (LED) lamp with the same input voltage, has been investigated. Based on the results, IEC flickermeter algorithm, which is designed based on the incandescent lamp assumption, has been updated to compute flicker severity for any kind of lamp and a new illumination-based flickermeter based on the IEC Standard has been developed. The measurement accuracy of the developed flickermeter has been tested and verified with the test signals recommended in the IEC Standard using actual lamp illumination inputs. Then the developed system has been used to measure the flicker severities of the incandescent lamp, CFL and LED lamp driven by a point of common coupling voltage supplying an I&S plant operating electric arc furnace plants reduced to 230V level. The results have shown that although the flicker severity limits are exceeded when an incandescent lamp is used, with the CFL limits are still exceeded but much lower flicker severity is obtained and the flicker severity computed from the illumination of the LED lamp is much below the limits.
{"title":"Illumination based flickermeter designed for flicker analysis of electric arc furnace plants","authors":"Mehmet Turkuzan, Özgül Salor-Durna","doi":"10.1109/IAS.2016.7731906","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731906","url":null,"abstract":"In this paper, a new flickermeter, designed to calculate flicker severity by using lamp illumination as its input, which complies with the IEC flickermeter for the analysis of flicker in the electricity system caused by iron and steel (I&S) plants, is described. According to the IEC Standard 61000-4-15, flicker is calculated from the voltage and based on the assumption that this voltage feeds an incandescent lamp. In this research work, a system measuring illumination of the lamps has been developed and the illumination of three different types of bulbs, incandescent lamp, compact fluorescent lamp (CFL) and light emitting diode (LED) lamp with the same input voltage, has been investigated. Based on the results, IEC flickermeter algorithm, which is designed based on the incandescent lamp assumption, has been updated to compute flicker severity for any kind of lamp and a new illumination-based flickermeter based on the IEC Standard has been developed. The measurement accuracy of the developed flickermeter has been tested and verified with the test signals recommended in the IEC Standard using actual lamp illumination inputs. Then the developed system has been used to measure the flicker severities of the incandescent lamp, CFL and LED lamp driven by a point of common coupling voltage supplying an I&S plant operating electric arc furnace plants reduced to 230V level. The results have shown that although the flicker severity limits are exceeded when an incandescent lamp is used, with the CFL limits are still exceeded but much lower flicker severity is obtained and the flicker severity computed from the illumination of the LED lamp is much below the limits.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131150787","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731920
P. Pablo Castro, M. Anibal Valenzuela
A locked charge drop incident in a ball or sag mill is a catastrophic failure that causes high repair costs and loss of production. The locked charge event also produces high currents and torque demands, which can cause the drive or transformer overcurrent relays trip the mill motor.
{"title":"Locked charge protection algorithms robust to coordination with overcurrent protection in ball and sag mill drives","authors":"P. Pablo Castro, M. Anibal Valenzuela","doi":"10.1109/IAS.2016.7731920","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731920","url":null,"abstract":"A locked charge drop incident in a ball or sag mill is a catastrophic failure that causes high repair costs and loss of production. The locked charge event also produces high currents and torque demands, which can cause the drive or transformer overcurrent relays trip the mill motor.","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133299206","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 : 2016-10-01DOI: 10.1109/IAS.2016.7731830
J. Yoo, Jaewoo Kim, Jung-Wook Park
This paper proposes the new converter control of the permanent magnet synchronous generator (PMSG) wind turbine system in the inertia-free stand-alone (IFSA) microgrid with the only converter-based-generators (CBGs). Instead of applying the conventional real and reactive power controller, the more robust controller is required in the IFSA microgrid because it is subject to a weak system such that its frequency is determined by the switching control of CBGs. The proposed controller has the grid-side converter, which controls to keep the voltage magnitude and phase angle of the point of common coupling (PCC) in a stable mode. It balances the real power between output power of wind turbine system and the load demand. Also, the machine-side converter controls rotor speed and pitch angle, which proposed to balance the active power flow, thus maintaining the converter DC-link voltage. The electromagnetic transients program (EMTP) based simulation results are given to verify the effectiveness of proposed controller in the IFSA microgrid. Also, its effectiveness is verified with the experimental test by the real-time digital simulator (RTDS).
{"title":"Converter control of PMSG wind turbine system for inertia-free stand-alone microgrid","authors":"J. Yoo, Jaewoo Kim, Jung-Wook Park","doi":"10.1109/IAS.2016.7731830","DOIUrl":"https://doi.org/10.1109/IAS.2016.7731830","url":null,"abstract":"This paper proposes the new converter control of the permanent magnet synchronous generator (PMSG) wind turbine system in the inertia-free stand-alone (IFSA) microgrid with the only converter-based-generators (CBGs). Instead of applying the conventional real and reactive power controller, the more robust controller is required in the IFSA microgrid because it is subject to a weak system such that its frequency is determined by the switching control of CBGs. The proposed controller has the grid-side converter, which controls to keep the voltage magnitude and phase angle of the point of common coupling (PCC) in a stable mode. It balances the real power between output power of wind turbine system and the load demand. Also, the machine-side converter controls rotor speed and pitch angle, which proposed to balance the active power flow, thus maintaining the converter DC-link voltage. The electromagnetic transients program (EMTP) based simulation results are given to verify the effectiveness of proposed controller in the IFSA microgrid. Also, its effectiveness is verified with the experimental test by the real-time digital simulator (RTDS).","PeriodicalId":306377,"journal":{"name":"2016 IEEE Industry Applications Society Annual Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129824877","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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