Pub Date : 2015-10-29DOI: 10.1109/ECCE.2015.7309826
L. H. Silva, Hugo M. T. C. Gomes, A. S. Filho, D. Fernandes, F. Costa
This paper proposes to apply an instantaneous sequence estimation technique to enhance the control systems applied in distributed generation. It relies on a recursive least-square estimation of the αβ voltage components which are directly linked to the sequence components. The method was originally proposed to serve a dynamic voltage restorer controller. Here, this technique has been expanded to improve it robustness with regards to harmonic distortions, presented on the point of common coupling (PCC) between the mains and the distributed generator. The technique has been tested on synthetic signals and on signals produced through a simulation of a grid-connected inverter. The results endorse the proposed technique.
{"title":"A sequence components estimation technique applied for distributed generation","authors":"L. H. Silva, Hugo M. T. C. Gomes, A. S. Filho, D. Fernandes, F. Costa","doi":"10.1109/ECCE.2015.7309826","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309826","url":null,"abstract":"This paper proposes to apply an instantaneous sequence estimation technique to enhance the control systems applied in distributed generation. It relies on a recursive least-square estimation of the αβ voltage components which are directly linked to the sequence components. The method was originally proposed to serve a dynamic voltage restorer controller. Here, this technique has been expanded to improve it robustness with regards to harmonic distortions, presented on the point of common coupling (PCC) between the mains and the distributed generator. The technique has been tested on synthetic signals and on signals produced through a simulation of a grid-connected inverter. The results endorse the proposed technique.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"18 1","pages":"1190-1195"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79959214","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310039
Anindita Jamatia, K. Subrahmanyam, P. Sensarma
Power quality issues of switch mode converters are becoming a matter of concern due to the rapid growth of renewable energy resources. Voltages and currents of power network system are commonly affected by harmonics produced by power converters. This paper presents formulation of analytical equations to determine the input current and output voltage harmonics of three phase to three phase matrix converter (MC) based on 2-D Fourier integral analysis. The general trend to find out harmonic spectrum is to do FFT on simulated waveforms which do not provide any insight about the formation of harmonic contents. Proper harmonic characterisation of output voltages and input currents becomes possible once the switching function matrix is expressed by its high frequency contents besides the low frequency terms. Results obtained from the analytical expressions are validated by comparing to the numerical results (FFT) obtained from MATLAB simulation as well as hardware experiment. The result shows very good agreement with simulation.
{"title":"Harmonic analysis of grid connected three phase direct matrix converter using 2-D fourier integral","authors":"Anindita Jamatia, K. Subrahmanyam, P. Sensarma","doi":"10.1109/ECCE.2015.7310039","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310039","url":null,"abstract":"Power quality issues of switch mode converters are becoming a matter of concern due to the rapid growth of renewable energy resources. Voltages and currents of power network system are commonly affected by harmonics produced by power converters. This paper presents formulation of analytical equations to determine the input current and output voltage harmonics of three phase to three phase matrix converter (MC) based on 2-D Fourier integral analysis. The general trend to find out harmonic spectrum is to do FFT on simulated waveforms which do not provide any insight about the formation of harmonic contents. Proper harmonic characterisation of output voltages and input currents becomes possible once the switching function matrix is expressed by its high frequency contents besides the low frequency terms. Results obtained from the analytical expressions are validated by comparing to the numerical results (FFT) obtained from MATLAB simulation as well as hardware experiment. The result shows very good agreement with simulation.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"72 1","pages":"2703-2709"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77021861","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309984
Tong Yao, I. Leonard, R. Ayyanar, M. Steurer
In order to develop and validate smart grid technologies with complex control and communication, detailed modeling of distribution systems using the Real Time Digital Simulator (RTDS) is invaluable [1]. At the distribution system level, testing a 13 kV power electronic device without first validating its controls is cost prohibitive. RTDS provides a cost effective way to study smart grids at not only the system level but also at the device level. The difficulty of modeling the distribution system using RTDS lies in the power electronic devices in the system such as single-phase three-stage solid state transformers (SST) and distributed energy storage devices (DESD) due to their fast transients. This paper investigates the low-loss two-level VSC bridge (LEV2) switching model in RTDS and solves the artificial loss problem for single phase systems. Then, the modeling method is applied to a controller hardware-in-the-loop (CHIL) setup with an SST and DESD, showing promising results. Finally, with the actual DSP+FPGA board for control and an ARM TS7800 for communication, the SST modeled in RTDS is controlled over Ethernet.
{"title":"Single-phase three-stage SST modeling using RTDS for controller hardware-in-the-loop application","authors":"Tong Yao, I. Leonard, R. Ayyanar, M. Steurer","doi":"10.1109/ECCE.2015.7309984","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309984","url":null,"abstract":"In order to develop and validate smart grid technologies with complex control and communication, detailed modeling of distribution systems using the Real Time Digital Simulator (RTDS) is invaluable [1]. At the distribution system level, testing a 13 kV power electronic device without first validating its controls is cost prohibitive. RTDS provides a cost effective way to study smart grids at not only the system level but also at the device level. The difficulty of modeling the distribution system using RTDS lies in the power electronic devices in the system such as single-phase three-stage solid state transformers (SST) and distributed energy storage devices (DESD) due to their fast transients. This paper investigates the low-loss two-level VSC bridge (LEV2) switching model in RTDS and solves the artificial loss problem for single phase systems. Then, the modeling method is applied to a controller hardware-in-the-loop (CHIL) setup with an SST and DESD, showing promising results. Finally, with the actual DSP+FPGA board for control and an ARM TS7800 for communication, the SST modeled in RTDS is controlled over Ethernet.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"2302-2309"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76296076","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309987
Xuejun Pei, Zhi Chen, Shunchao Wang, Y. Kang
Microgrids can provide various economic and environmental benefits but their implementation poses great technical challenges in control, protection and energy management. One of the most important technical aspects in microgrids is distribution system protection. This paper proposes an overcurrent protection strategy for microgrid consisting of only inverter-based distributed generation (IBDG) in islanded operation mode. On the basis of protecting semiconductor devices from damage once a short circuit fault occurs at the distribution line, a “short circuit impedance versus fault current (Zf-If)” droop mechanism is introduced in the current-limiting controller to imitate the characteristic of power system short circuit current, which benefits the adoption of conventional overcurrent protection principle. Through using the microprocessor-based relay, a two-segment current protection algorithm is applied to guarantee the selectivity, rapidity and reliability of the protection system. The proposed protection method can provide a reference for the future microgrid protection. Experiments have been carried out to verify the feasibility of the proposed scheme.
{"title":"Overcurrent protection for inverter-based distributed generation system","authors":"Xuejun Pei, Zhi Chen, Shunchao Wang, Y. Kang","doi":"10.1109/ECCE.2015.7309987","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309987","url":null,"abstract":"Microgrids can provide various economic and environmental benefits but their implementation poses great technical challenges in control, protection and energy management. One of the most important technical aspects in microgrids is distribution system protection. This paper proposes an overcurrent protection strategy for microgrid consisting of only inverter-based distributed generation (IBDG) in islanded operation mode. On the basis of protecting semiconductor devices from damage once a short circuit fault occurs at the distribution line, a “short circuit impedance versus fault current (Zf-If)” droop mechanism is introduced in the current-limiting controller to imitate the characteristic of power system short circuit current, which benefits the adoption of conventional overcurrent protection principle. Through using the microprocessor-based relay, a two-segment current protection algorithm is applied to guarantee the selectivity, rapidity and reliability of the protection system. The proposed protection method can provide a reference for the future microgrid protection. Experiments have been carried out to verify the feasibility of the proposed scheme.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"91 1","pages":"2328-2332"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87908912","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310366
R. Kandula, A. Iyer, F. Lambert, T. Heidel, C. Schauder, D. Divan
There has been an increasing interest in development of power routers to realize dynamically controllable grid. Previously the authors have proposed a power router based on fractionally-rated BTB (FR-BTB) converter, which was shown to have reduced semiconductor and magnetics requirement compared to traditional power routing solutions. This paper presents the development and functional demonstration of the FR-BTB based power router at 13 kV, 1 MVA while reflecting on the challenges associated with high voltage and high power applications. The paper also presents applications of the power router in distribution systems.
{"title":"Experimental evaluation of power router based on a fractionally-rated back-to-back converter at 13 kV 1MVA","authors":"R. Kandula, A. Iyer, F. Lambert, T. Heidel, C. Schauder, D. Divan","doi":"10.1109/ECCE.2015.7310366","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310366","url":null,"abstract":"There has been an increasing interest in development of power routers to realize dynamically controllable grid. Previously the authors have proposed a power router based on fractionally-rated BTB (FR-BTB) converter, which was shown to have reduced semiconductor and magnetics requirement compared to traditional power routing solutions. This paper presents the development and functional demonstration of the FR-BTB based power router at 13 kV, 1 MVA while reflecting on the challenges associated with high voltage and high power applications. The paper also presents applications of the power router in distribution systems.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"28 1","pages":"5008-5015"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87987344","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310391
S. Jia, R. Qu, Jian Li
Stator wound field synchronous machines (SWFSMs) are gaining more and more research and application interest recently due to the absence of expensive rare earth magnet materials. These machines are characterized by a doubly salient structure, and both the DC field winding and the three phase armature windings are located in the stator. In this paper, taking the basic structure of stator DC excited vernier reluctance machine, which is one type of SWFSM, the design of SWFSMs are studied in detail semi-analytically, by finite element analysis (FEA), and also validated by experiment. First, the effects of stator/rotor slot combinations on performances, including cogging torque, torque and torque ripple, voltage fluctuation of the DC winding are analyzed and compared. Then, the back-EMF, torque and power factor expressions in terms of the geometrical variables are proposed. Also, a 12-stator-slot, 11-rotor-slot machine as an example, the design parameters, including the split ratio, the air gap length, the proportion of the armature and field coil turns in one stator slot, and the stator/rotor tooth arc combination are optimized. The optimization results show that these design parameters have a various influence on electromagnetic performance, and the designers should select the design parameters comprehensively.
{"title":"Design considerations and parameter optimization of stator wound field synchronous machines based on magnetic the gear effect","authors":"S. Jia, R. Qu, Jian Li","doi":"10.1109/ECCE.2015.7310391","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310391","url":null,"abstract":"Stator wound field synchronous machines (SWFSMs) are gaining more and more research and application interest recently due to the absence of expensive rare earth magnet materials. These machines are characterized by a doubly salient structure, and both the DC field winding and the three phase armature windings are located in the stator. In this paper, taking the basic structure of stator DC excited vernier reluctance machine, which is one type of SWFSM, the design of SWFSMs are studied in detail semi-analytically, by finite element analysis (FEA), and also validated by experiment. First, the effects of stator/rotor slot combinations on performances, including cogging torque, torque and torque ripple, voltage fluctuation of the DC winding are analyzed and compared. Then, the back-EMF, torque and power factor expressions in terms of the geometrical variables are proposed. Also, a 12-stator-slot, 11-rotor-slot machine as an example, the design parameters, including the split ratio, the air gap length, the proportion of the armature and field coil turns in one stator slot, and the stator/rotor tooth arc combination are optimized. The optimization results show that these design parameters have a various influence on electromagnetic performance, and the designers should select the design parameters comprehensively.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"16 1","pages":"5195-5202"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88030627","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310279
A. Fatemi, N. Demerdash, D. Ionel, T. Nehl
A novel automated design algorithm for application-based optimization of permanent magnet (PM) machines is presented in this paper. The proposed algorithm features precise performance evaluation of the potentially heavily saturated machines at high-energy-throughput operating zones using finite element (FE) techniques. First, the energy consumption function associated with the machine's operating cycle is efficiently modeled by a number of representative load points using a k-means clustering algorithm. Subsequently, a new approach is developed to assess the performance of the machine at each representative load point with proper control to conform to practical operational constraints imposed by voltage and current limits of the motor-drive system. The developed algorithm is applicable to the optimization of any configuration of PM and synchronous reluctance motors over any conceivable operating cycle. Its effectiveness is demonstrated by optimizing the well-established reference/benchmark design represented by the 2004 Toyota Prius IPM motor configuration over a compound operating cycle consisting of common US driving schedules.
{"title":"Large-scale electromagnetic design optimization of PM machines over a target operating cycle","authors":"A. Fatemi, N. Demerdash, D. Ionel, T. Nehl","doi":"10.1109/ECCE.2015.7310279","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310279","url":null,"abstract":"A novel automated design algorithm for application-based optimization of permanent magnet (PM) machines is presented in this paper. The proposed algorithm features precise performance evaluation of the potentially heavily saturated machines at high-energy-throughput operating zones using finite element (FE) techniques. First, the energy consumption function associated with the machine's operating cycle is efficiently modeled by a number of representative load points using a k-means clustering algorithm. Subsequently, a new approach is developed to assess the performance of the machine at each representative load point with proper control to conform to practical operational constraints imposed by voltage and current limits of the motor-drive system. The developed algorithm is applicable to the optimization of any configuration of PM and synchronous reluctance motors over any conceivable operating cycle. Its effectiveness is demonstrated by optimizing the well-established reference/benchmark design represented by the 2004 Toyota Prius IPM motor configuration over a compound operating cycle consisting of common US driving schedules.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"42 1","pages":"4383-4390"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86514199","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309961
A. Anurag, Yongheng Yang, F. Blaabjerg
The widespread adoption of mixed renewables urgently require reactive power exchange at various feed-in points of the utility grid. Photovoltaic (PV) inverters are able to provide reactive power in a decentralized manner at the grid-connection points even outside active power feed-in operation, especially at night when there is no solar irradiance. This serves as a motivation for utilizing the PV inverters at night for reactive power compensation. Thus, an analysis on the impact of reactive power injection by PV inverters outside feed-in operation on the thermal performance and the reliability has been performed in this paper. A thermal analysis is incorporated to determine the additional temperature rise in the power switching components outside the feed-in operation. This analysis enables the translation from long-term mission profiles (three different mission profiles) to device thermal loading, considering the operation outside active feed-in hours. An analytical lifetime model is then employed for lifetime quantization based on the Palgrem Miner rule. Thereafter, considering the lifetime reduction of the PV inverter under different mission profiles with reactive power injection at night, the impact of PV sites on the economic value of the inverter is assessed. This analysis can be useful in choosing between conventional reactive power compensation devices or PV inverters for injecting reactive power to the grid.
{"title":"Reliability analysis of single-phase PV inverters with reactive power injection at night considering mission profiles","authors":"A. Anurag, Yongheng Yang, F. Blaabjerg","doi":"10.1109/ECCE.2015.7309961","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309961","url":null,"abstract":"The widespread adoption of mixed renewables urgently require reactive power exchange at various feed-in points of the utility grid. Photovoltaic (PV) inverters are able to provide reactive power in a decentralized manner at the grid-connection points even outside active power feed-in operation, especially at night when there is no solar irradiance. This serves as a motivation for utilizing the PV inverters at night for reactive power compensation. Thus, an analysis on the impact of reactive power injection by PV inverters outside feed-in operation on the thermal performance and the reliability has been performed in this paper. A thermal analysis is incorporated to determine the additional temperature rise in the power switching components outside the feed-in operation. This analysis enables the translation from long-term mission profiles (three different mission profiles) to device thermal loading, considering the operation outside active feed-in hours. An analytical lifetime model is then employed for lifetime quantization based on the Palgrem Miner rule. Thereafter, considering the lifetime reduction of the PV inverter under different mission profiles with reactive power injection at night, the impact of PV sites on the economic value of the inverter is assessed. This analysis can be useful in choosing between conventional reactive power compensation devices or PV inverters for injecting reactive power to the grid.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"70 1","pages":"2132-2139"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86113331","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310277
Bingyao Sun, R. Burgos, Xuning Zhang, D. Boroyevich
With the high electromagnetic interference (EMI) noise generated by fast-switching-speed devices, it is crucial to learn about EMI noise generation and propagation in the systems and design effective EMI filters. EMI behavioral models have been verified as an effective tool to predict common-mode (CM) and differential-mode (DM) EMI noise and aid in EMI filter design. However, these models cannot predict the effect of the cross-coupled DM and CM noise, which is more likely to be present when operating at a high switching frequency. Accordingly, this paper explains the cross-coupled effect that noise generation and propagation have in an inverter system. A mix-mode unterminated behavioral model is proposed to capture the DM noise at the input DC terminals considering the mixed CM effect. The model accuracy is verified to 30 MHz in experiments carried out on a three-phase SiC MOSFET inverter.
{"title":"Differential-mode EMI emission prediction of SiC-based power converters using a mixed-mode unterminated behavioral model","authors":"Bingyao Sun, R. Burgos, Xuning Zhang, D. Boroyevich","doi":"10.1109/ECCE.2015.7310277","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310277","url":null,"abstract":"With the high electromagnetic interference (EMI) noise generated by fast-switching-speed devices, it is crucial to learn about EMI noise generation and propagation in the systems and design effective EMI filters. EMI behavioral models have been verified as an effective tool to predict common-mode (CM) and differential-mode (DM) EMI noise and aid in EMI filter design. However, these models cannot predict the effect of the cross-coupled DM and CM noise, which is more likely to be present when operating at a high switching frequency. Accordingly, this paper explains the cross-coupled effect that noise generation and propagation have in an inverter system. A mix-mode unterminated behavioral model is proposed to capture the DM noise at the input DC terminals considering the mixed CM effect. The model accuracy is verified to 30 MHz in experiments carried out on a three-phase SiC MOSFET inverter.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"125 1 1","pages":"4367-4374"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83997297","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310123
Ping Shen, Qianhong Chen, Ligang Xu
Analyzing the performance of satellite photovoltaic (PV) array before launch and in space missions is crucial for energy balance and missions success. This study proposes a specific method to predict the electrical characteristics of body mounted solar array for microsatellite. Based on limit data provided by manufacturers and semiconductor band gap, the equivalent circuit model and its parameters of PV cell or module at different solar irradiance and temperature conditions are determined. Moreover, solar irradiance on body-mounted solar panel is modeled by the variation of incident angle in time domain. According to thermal balance relationship in orbit, the temperature fluctuation is modeled and computed by the Ronge-Kutta algorithm. Finally, calculated results are compared with measure data of the TX-1 microsatellite developed by Nanjing University of Aeronautics and Astronautics, and applied to predict output power in different space missions.
{"title":"Electrical characteristics prediction of microsatellite photovoltaic subsystem in orbit","authors":"Ping Shen, Qianhong Chen, Ligang Xu","doi":"10.1109/ECCE.2015.7310123","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310123","url":null,"abstract":"Analyzing the performance of satellite photovoltaic (PV) array before launch and in space missions is crucial for energy balance and missions success. This study proposes a specific method to predict the electrical characteristics of body mounted solar array for microsatellite. Based on limit data provided by manufacturers and semiconductor band gap, the equivalent circuit model and its parameters of PV cell or module at different solar irradiance and temperature conditions are determined. Moreover, solar irradiance on body-mounted solar panel is modeled by the variation of incident angle in time domain. According to thermal balance relationship in orbit, the temperature fluctuation is modeled and computed by the Ronge-Kutta algorithm. Finally, calculated results are compared with measure data of the TX-1 microsatellite developed by Nanjing University of Aeronautics and Astronautics, and applied to predict output power in different space missions.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"91 1","pages":"3287-3294"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86752682","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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