Pub Date : 2016-05-01DOI: 10.1109/ICPS.2016.7490240
G. Parise, L. Parise, A. Malerba, F. Mattei, C. Su, P. Chavdarian
A comprehensive design of an electrical system has to ensure optimal performances in terms of operation, maintenance and safety. The paper discusses the design criteria of electrical systems for refrigerated container parks in port terminals, characterized by a uniform placement of the containers inside the racks' structure. The paper considers, as case study, the terminal container of Kaohsiung, Taiwan. The general design criterion of power systems is to structure the electrical distribution into two or more circuit levels adopting the barycentric approach, promoting modularity when possible, especially for the cases of uniform distributed loads (UDLs). The modularity allows to create mobile and easily deployable solutions that, in conjunction with a re-routable power network can significantly increase the overall availability that represents a crucial requirement considering the service continuity level of the reefers. The adoption of a barycentric distribution increases the overall optimization of the distribution system together with the appropriate voltage levels. This provides higher performances, while at the same time, reducing construction's costs. The authors therefore suggest, for the refrigerated container parks, the adoption of a main MV distribution together with a modular LV distribution, supplied by containerized mobile MV/LV transformer substations located in each rack.
{"title":"Refrigerated container parks typical case of electrical systems with structured distributed loads","authors":"G. Parise, L. Parise, A. Malerba, F. Mattei, C. Su, P. Chavdarian","doi":"10.1109/ICPS.2016.7490240","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490240","url":null,"abstract":"A comprehensive design of an electrical system has to ensure optimal performances in terms of operation, maintenance and safety. The paper discusses the design criteria of electrical systems for refrigerated container parks in port terminals, characterized by a uniform placement of the containers inside the racks' structure. The paper considers, as case study, the terminal container of Kaohsiung, Taiwan. The general design criterion of power systems is to structure the electrical distribution into two or more circuit levels adopting the barycentric approach, promoting modularity when possible, especially for the cases of uniform distributed loads (UDLs). The modularity allows to create mobile and easily deployable solutions that, in conjunction with a re-routable power network can significantly increase the overall availability that represents a crucial requirement considering the service continuity level of the reefers. The adoption of a barycentric distribution increases the overall optimization of the distribution system together with the appropriate voltage levels. This provides higher performances, while at the same time, reducing construction's costs. The authors therefore suggest, for the refrigerated container parks, the adoption of a main MV distribution together with a modular LV distribution, supplied by containerized mobile MV/LV transformer substations located in each rack.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121035820","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490235
S. Saleh
This paper develops a new approach for formulating and the power flow for power systems. The developed approach is based on expressing the active and reactive power injections at each bus, in a power system, using the d-q-axis components of bus voltages and admittance matrix. The new power flow formulation produces a scaled Jacobian matrix, which can offer a fast convergence to the solution. The proposed power flow formulation can also model bus type conversions without affecting its accuracy or fast convergence. In addition, the d-q-axis power flow (DQPF) offers a simplified and reliable representation of PV buses that have distributed generation units (DGUs). The DQPF is implemented with a step-by-step procedure for performance evaluation on several power systems operated at different conditions. Performance results demonstrate fast convergence, reduced computations, and minor sensitivity to the number of buses, loading conditions, and levels of DGU penetration. Furthermore, performance results show that DQPF power flow can attain solutions in less iterations than Newton-Raphson, Fast Decoupled, and Iwamoto power flow methods.
{"title":"The development and formulation of a power flow using d - q reference frame components","authors":"S. Saleh","doi":"10.1109/ICPS.2016.7490235","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490235","url":null,"abstract":"This paper develops a new approach for formulating and the power flow for power systems. The developed approach is based on expressing the active and reactive power injections at each bus, in a power system, using the d-q-axis components of bus voltages and admittance matrix. The new power flow formulation produces a scaled Jacobian matrix, which can offer a fast convergence to the solution. The proposed power flow formulation can also model bus type conversions without affecting its accuracy or fast convergence. In addition, the d-q-axis power flow (DQPF) offers a simplified and reliable representation of PV buses that have distributed generation units (DGUs). The DQPF is implemented with a step-by-step procedure for performance evaluation on several power systems operated at different conditions. Performance results demonstrate fast convergence, reduced computations, and minor sensitivity to the number of buses, loading conditions, and levels of DGU penetration. Furthermore, performance results show that DQPF power flow can attain solutions in less iterations than Newton-Raphson, Fast Decoupled, and Iwamoto power flow methods.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127124713","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490241
Yu Zou, Jiangbiao He
This paper investigates the modeling, simulation and implementation of a wind power system based on a Permanent Magnet Synchronous Generator (PMSG). A comprehensive portfolio of control schemes are discussed and verified by Matlab/Simulink simulations, in the context of grid integration and Maximum Power Point Tracking (MPPT) operations. Particularly, to investigate the Fault-Ride-Through (FRT) and robustness capabilities, various wind speed scenarios and a line voltage droop are introduced to the wind power system to investigate its dynamic performance. A reference power curve, i.e., power versus generator speed, is employed in the turbine model to implement the MPPT. In addition, a position/speed sensorless operation approach based on Sliding Mode Observer (SMO) is implemented to reduce system cost and improve control reliability. Simulation and experimental results demonstrate the robust control of the power and speed in the PMSG wind power systems.
{"title":"Comprehensive modeling, simulation and experimental validation of Permanent Magnet Synchronous generator wind power system","authors":"Yu Zou, Jiangbiao He","doi":"10.1109/ICPS.2016.7490241","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490241","url":null,"abstract":"This paper investigates the modeling, simulation and implementation of a wind power system based on a Permanent Magnet Synchronous Generator (PMSG). A comprehensive portfolio of control schemes are discussed and verified by Matlab/Simulink simulations, in the context of grid integration and Maximum Power Point Tracking (MPPT) operations. Particularly, to investigate the Fault-Ride-Through (FRT) and robustness capabilities, various wind speed scenarios and a line voltage droop are introduced to the wind power system to investigate its dynamic performance. A reference power curve, i.e., power versus generator speed, is employed in the turbine model to implement the MPPT. In addition, a position/speed sensorless operation approach based on Sliding Mode Observer (SMO) is implemented to reduce system cost and improve control reliability. Simulation and experimental results demonstrate the robust control of the power and speed in the PMSG wind power systems.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125318125","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490232
Xiaodong Liang
In this paper, a subsea electrical submersible pump (ESP) system with challenging long cabling requirement is designed. Several factors are considered for the design: configuration of the system, length and size of the subsea cable, and load filter parameters for a medium voltage variable frequency drive used in the system. The system requires a 4 km or a 50 km subsea cable connected to the output of the drive. With such long cables, harmonic resonance and motor start-up are two major concerns. Various system designs are investigated through a feasibility study by computer simulation, which includes a steady-state analysis, a frequency response analysis, and a motor starting study. New designs of the load filter for the medium voltage drive are proposed due to unsatisfactory performance of its original standard load filter from the drive manufacturer. The frequency response analysis combined with the steady-state analysis are used to evaluate the effectiveness of new load filters. The motor starting study determines the possibility if the motor can start-up successfully for a system design. The acceptable designs of the system are finalized based on results of the feasibility study.
{"title":"Innovative design and feasibility study for a subsea electrical submersible pump system","authors":"Xiaodong Liang","doi":"10.1109/ICPS.2016.7490232","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490232","url":null,"abstract":"In this paper, a subsea electrical submersible pump (ESP) system with challenging long cabling requirement is designed. Several factors are considered for the design: configuration of the system, length and size of the subsea cable, and load filter parameters for a medium voltage variable frequency drive used in the system. The system requires a 4 km or a 50 km subsea cable connected to the output of the drive. With such long cables, harmonic resonance and motor start-up are two major concerns. Various system designs are investigated through a feasibility study by computer simulation, which includes a steady-state analysis, a frequency response analysis, and a motor starting study. New designs of the load filter for the medium voltage drive are proposed due to unsatisfactory performance of its original standard load filter from the drive manufacturer. The frequency response analysis combined with the steady-state analysis are used to evaluate the effectiveness of new load filters. The motor starting study determines the possibility if the motor can start-up successfully for a system design. The acceptable designs of the system are finalized based on results of the feasibility study.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115524173","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490221
Yuan-Kang Wu, Ye Guan-Ting, M. Shaaban
Installed solar power has recently grown dramatically in Taiwan. When a large amount of solar power is integrated into a grid, its impacts on existing power systems must be analyze. Currently, the maximum solar power capacity is installed in Central Taiwan Science Park, and the highest penetration of Photovoltaics (PV) is in Penghu Island, Taiwan. Therefore, this paper studies the effects of increased PV installation capacity in these two locations in Taiwan, with respect to both steady-state and dynamic performances. First, a charged system search (CSS) algorithm is applied to determine the optimal PV installed capacity at chosen buses, considering the need to minimize transmission loss and voltage variation. System impact analysis is then performed on the new system with increased PV capacity. The effect of PV low-voltage-ride-through (LVRT) capability on system dynamic performance is further analyzed.
{"title":"Impact analysis of large PV integration: Case studies in Taiwan","authors":"Yuan-Kang Wu, Ye Guan-Ting, M. Shaaban","doi":"10.1109/ICPS.2016.7490221","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490221","url":null,"abstract":"Installed solar power has recently grown dramatically in Taiwan. When a large amount of solar power is integrated into a grid, its impacts on existing power systems must be analyze. Currently, the maximum solar power capacity is installed in Central Taiwan Science Park, and the highest penetration of Photovoltaics (PV) is in Penghu Island, Taiwan. Therefore, this paper studies the effects of increased PV installation capacity in these two locations in Taiwan, with respect to both steady-state and dynamic performances. First, a charged system search (CSS) algorithm is applied to determine the optimal PV installed capacity at chosen buses, considering the need to minimize transmission loss and voltage variation. System impact analysis is then performed on the new system with increased PV capacity. The effect of PV low-voltage-ride-through (LVRT) capability on system dynamic performance is further analyzed.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121849936","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490224
Jerome Brenguier, M. Vallet, Frédéric Vaillant
This paper analyzes the average efficiency gap in a building final electrical distribution system when loads and multiple sources are either linked by an AC distribution bus or a DC distribution bus. This paper shows that the gap is rather small to be a good enough reason for adopting AC or DC for low voltage electrical power distribution.
{"title":"Efficiency gap between AC and DC electrical power distribution system","authors":"Jerome Brenguier, M. Vallet, Frédéric Vaillant","doi":"10.1109/ICPS.2016.7490224","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490224","url":null,"abstract":"This paper analyzes the average efficiency gap in a building final electrical distribution system when loads and multiple sources are either linked by an AC distribution bus or a DC distribution bus. This paper shows that the gap is rather small to be a good enough reason for adopting AC or DC for low voltage electrical power distribution.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128688909","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490256
S. Saleh, E. Ozkop, A. Aljankawey
This paper presents a coordinated anti-islanding protection for collector systems with multiple distributed generation units (DGUs). The presented anti-islanding protection is established based on processing the d-q-axis components of the instantaneous three phase apparent powers (sd and sq), determined at the point-of-common-coupling, using the wavelet packet transform (WPT). Processing sd and sq by using WPT allows the extraction of low and high frequency sub-band contents. The contents of the high frequency sub-band are used to detect and distinguish islanding events, and contents of the low and high frequency sub-bands are employed to define a coordination index, which is used to identify the islanded DGU(s). The presented anti-islanding protection is implemented for off-line testing using data obtained from a laboratory collector with four different DGUs. Off-line test results demonstrate accurate, fast, and reliable responses to islanding and non-islanding event(s), accurate identification of islanded DGUs, along with negligible sensitivity to levels of power delivery to the collector system.
{"title":"The development and testing of a coordinated anti-islanding protection for collector systems with multiple distributed generation units","authors":"S. Saleh, E. Ozkop, A. Aljankawey","doi":"10.1109/ICPS.2016.7490256","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490256","url":null,"abstract":"This paper presents a coordinated anti-islanding protection for collector systems with multiple distributed generation units (DGUs). The presented anti-islanding protection is established based on processing the d-q-axis components of the instantaneous three phase apparent powers (sd and sq), determined at the point-of-common-coupling, using the wavelet packet transform (WPT). Processing sd and sq by using WPT allows the extraction of low and high frequency sub-band contents. The contents of the high frequency sub-band are used to detect and distinguish islanding events, and contents of the low and high frequency sub-bands are employed to define a coordination index, which is used to identify the islanded DGU(s). The presented anti-islanding protection is implemented for off-line testing using data obtained from a laboratory collector with four different DGUs. Off-line test results demonstrate accurate, fast, and reliable responses to islanding and non-islanding event(s), accurate identification of islanded DGUs, along with negligible sensitivity to levels of power delivery to the collector system.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116747200","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490223
A. Moghadasi, M. Moghaddami, Arash Anzalchi, A. Sarwat, O. Mohammed
This paper presents a computational intelligence technique for optimal coordinated reactive power control between a wind turbine (WT) equipped with doubly fed induction generator (DFIG) and a static synchronous compensator (STATCOM), during faults. The proposed control model is formulated as a multi-objective optimization problem (MOP) in order to simultaneously minimize two conflicting objectives: 1) voltage deviations at the WT terminal during and after grid faults and 2) low-frequency oscillations of the active power after clearing the faults. For this purpose, it is necessary to achieve the optimal values of control variables, such as the reactive power references for both DFIG and STATCOM controllers. The aforementioned problem is solved by using the stochastic normalized simulated annealing (NSA) algorithm. Since the proposed problem is a MOP incorporating several solutions, the NSA algorithm finds the Pareto-optimal solutions for the proposed control system, based on the assigned priorities (weights) for each objective. For online applications, where the control system needs to act very fast, a fuzzy logic controller (FLC) is used, so that tuning the fuzzy model and fuzzy rules are accomplished offline by the NSA algorithm. To validate the effectiveness of the proposed control strategy, a case study including a 1.5-MW DFIG and a 1.5-MVar STATCOM were carried out with MATLAB/Simulink.
{"title":"Prioritized coordinated reactive power control of wind turbin involving STATCOM using multi-objective optimization","authors":"A. Moghadasi, M. Moghaddami, Arash Anzalchi, A. Sarwat, O. Mohammed","doi":"10.1109/ICPS.2016.7490223","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490223","url":null,"abstract":"This paper presents a computational intelligence technique for optimal coordinated reactive power control between a wind turbine (WT) equipped with doubly fed induction generator (DFIG) and a static synchronous compensator (STATCOM), during faults. The proposed control model is formulated as a multi-objective optimization problem (MOP) in order to simultaneously minimize two conflicting objectives: 1) voltage deviations at the WT terminal during and after grid faults and 2) low-frequency oscillations of the active power after clearing the faults. For this purpose, it is necessary to achieve the optimal values of control variables, such as the reactive power references for both DFIG and STATCOM controllers. The aforementioned problem is solved by using the stochastic normalized simulated annealing (NSA) algorithm. Since the proposed problem is a MOP incorporating several solutions, the NSA algorithm finds the Pareto-optimal solutions for the proposed control system, based on the assigned priorities (weights) for each objective. For online applications, where the control system needs to act very fast, a fuzzy logic controller (FLC) is used, so that tuning the fuzzy model and fuzzy rules are accomplished offline by the NSA algorithm. To validate the effectiveness of the proposed control strategy, a case study including a 1.5-MW DFIG and a 1.5-MVar STATCOM were carried out with MATLAB/Simulink.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124403114","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490257
Tamer Abdelazim Mellik, T. Dionise, R. Yanniello
While preparing a modern data center for startup, the commissioning process involved primary circuit switching that resulted in two voltage transformer (VT) failures. As a result of these failures, the authors conducted a comprehensive investigation of the VT failures. As the investigation proceeded, VT ferroresonance on circuit opening, and high frequency switching transients on closing, emerged as possible root causes of the VT failures. After incorporating extensive transient simulations and three rounds of field transient measurements, the authors designed and implemented a complete solution that included sizing of snubbers to overcome excessive switching transients, and the development of a saturable reactor to protect voltage transformers against the effects of ferroresonance. This paper describes root cause(s), simulations, field measurements, recommend solution(s), and solution implementation. The correlation between field measurements and simulation results show the effectiveness of modeling the implemented solutions.
{"title":"A case study of voltage transformer failures in a modern data center: Analysis, mitigation, and solution implementation","authors":"Tamer Abdelazim Mellik, T. Dionise, R. Yanniello","doi":"10.1109/ICPS.2016.7490257","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490257","url":null,"abstract":"While preparing a modern data center for startup, the commissioning process involved primary circuit switching that resulted in two voltage transformer (VT) failures. As a result of these failures, the authors conducted a comprehensive investigation of the VT failures. As the investigation proceeded, VT ferroresonance on circuit opening, and high frequency switching transients on closing, emerged as possible root causes of the VT failures. After incorporating extensive transient simulations and three rounds of field transient measurements, the authors designed and implemented a complete solution that included sizing of snubbers to overcome excessive switching transients, and the development of a saturable reactor to protect voltage transformers against the effects of ferroresonance. This paper describes root cause(s), simulations, field measurements, recommend solution(s), and solution implementation. The correlation between field measurements and simulation results show the effectiveness of modeling the implemented solutions.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123421296","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 : 2016-05-01DOI: 10.1109/ICPS.2016.7490217
Arash Anzalchi, M. Moghaddami, A. Moghaddasi, Maneli Malek Pour, A. Sarwat
In order to reduce the influence of the grid harmonic currents and voltages, harmonic compensation is regularly implemented for a grid-tied inverter. In this paper a new topology of higher order power filter for single-phase grid-tied voltage-source inverters (VSI), named L(LCL)2, is introduced. The subscript is added to the name to avoid confusion with LLCL filter. In the proposed design the inverter side inductance is divided into three parts, and the grid side inductor is removed. Also an additional resonant branch at the double of switching frequency is added to the traditional LLCL filter to attenuate high frequency harmonics. The total inductance of this filter is less than LLCL filter with the amount of the grid side inductor. A comparative study and discussions on the subject of the traditional LLCL filter and the proposed L(LCL)2 filter have been conducted and assessed through both experimental hardware implementation and Matlab/Simulink-based simulation on a 700 W, 120V / 60 Hz single-phase grid-tied inverter. Also, a straightforward engineering design benchmark is suggested to discover parameters of the proposed L(LCL)2 filter. It is concluded that, compared with the LLCL filter, the L(LCL)2 filter not only has less voltage drop and total inductor size, but also has better performance on reducing high order current harmonics.
{"title":"A modified higher order power filter for grid-connected renewable energy systems","authors":"Arash Anzalchi, M. Moghaddami, A. Moghaddasi, Maneli Malek Pour, A. Sarwat","doi":"10.1109/ICPS.2016.7490217","DOIUrl":"https://doi.org/10.1109/ICPS.2016.7490217","url":null,"abstract":"In order to reduce the influence of the grid harmonic currents and voltages, harmonic compensation is regularly implemented for a grid-tied inverter. In this paper a new topology of higher order power filter for single-phase grid-tied voltage-source inverters (VSI), named L(LCL)2, is introduced. The subscript is added to the name to avoid confusion with LLCL filter. In the proposed design the inverter side inductance is divided into three parts, and the grid side inductor is removed. Also an additional resonant branch at the double of switching frequency is added to the traditional LLCL filter to attenuate high frequency harmonics. The total inductance of this filter is less than LLCL filter with the amount of the grid side inductor. A comparative study and discussions on the subject of the traditional LLCL filter and the proposed L(LCL)2 filter have been conducted and assessed through both experimental hardware implementation and Matlab/Simulink-based simulation on a 700 W, 120V / 60 Hz single-phase grid-tied inverter. Also, a straightforward engineering design benchmark is suggested to discover parameters of the proposed L(LCL)2 filter. It is concluded that, compared with the LLCL filter, the L(LCL)2 filter not only has less voltage drop and total inductor size, but also has better performance on reducing high order current harmonics.","PeriodicalId":266558,"journal":{"name":"2016 IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128882906","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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