Pub Date : 2018-05-01DOI: 10.1109/ICHQP.2018.8378877
F. Arrabal-Campos, A. Alcayde, F. G. Montoya, J. Martínez-Lao, R. Baños
Efficient simulation and control tools for electrical machines is an important issue for engineering education and research. This paper presents a MATLAB application to characterize and analyze the electrical-mechanical behaviour of electrical machines. The study is carried out in the laboratory of the University of Almeria (Spain) and has been specifically designed to monitor the operation and power quality of electrical machines. It consists of several test benches that allows different configurations for the electrical machines in the laboratory. The electrical machines are controlled using an automated and adjustable frequency AC drive. The MATLAB application communicates with the adjustable frequency AC drive via standard industrial communication protocols and opensource libraries in real-time in order to adjust some input parameters (start, stop, motor speed, etc.) Furthermore, the application displays some important output parameters, such as the RMS voltage, RMS current, active power, speed and torque. In addition, this framework is also designed to monitor power quality and to analyze the operation of the electrical machines, including the chance of applying advanced techniques for prediction and correction of rotating electrical machines maintenance.
{"title":"A MATLAB application for monitoring the operation and power quality of electrical machines","authors":"F. Arrabal-Campos, A. Alcayde, F. G. Montoya, J. Martínez-Lao, R. Baños","doi":"10.1109/ICHQP.2018.8378877","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378877","url":null,"abstract":"Efficient simulation and control tools for electrical machines is an important issue for engineering education and research. This paper presents a MATLAB application to characterize and analyze the electrical-mechanical behaviour of electrical machines. The study is carried out in the laboratory of the University of Almeria (Spain) and has been specifically designed to monitor the operation and power quality of electrical machines. It consists of several test benches that allows different configurations for the electrical machines in the laboratory. The electrical machines are controlled using an automated and adjustable frequency AC drive. The MATLAB application communicates with the adjustable frequency AC drive via standard industrial communication protocols and opensource libraries in real-time in order to adjust some input parameters (start, stop, motor speed, etc.) Furthermore, the application displays some important output parameters, such as the RMS voltage, RMS current, active power, speed and torque. In addition, this framework is also designed to monitor power quality and to analyze the operation of the electrical machines, including the chance of applying advanced techniques for prediction and correction of rotating electrical machines maintenance.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"17 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73755056","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378848
Xiaomei Yang, Chaoyun Guo, Yuewan Luo
The power quality monitoring data are widely applied in equipment fault detection and diagnosis, such as cable fault detection. Successfully detecting the abnormal signal from the power quality data is particularly important. This paper pro posed a generic abnormality detection method based on the residual-singular-value (RSV). The proposed method takes advantage of the essential characteristics of power quality waveform and the singular value decomposition (SVD) is performed on a matrix constructed by residual signals. Abnormality can be detected by measuring the change of singular values. In addition, the features of noise and singular value is excavated, then the adaptive threshold is proposed for abnormality detection. Simulation data and the field-measured data are both used to verify the feasibility and accuracy of the proposed algorithm.
{"title":"A novel adaptive detection method for generic power quality waveform abnormality","authors":"Xiaomei Yang, Chaoyun Guo, Yuewan Luo","doi":"10.1109/ICHQP.2018.8378848","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378848","url":null,"abstract":"The power quality monitoring data are widely applied in equipment fault detection and diagnosis, such as cable fault detection. Successfully detecting the abnormal signal from the power quality data is particularly important. This paper pro posed a generic abnormality detection method based on the residual-singular-value (RSV). The proposed method takes advantage of the essential characteristics of power quality waveform and the singular value decomposition (SVD) is performed on a matrix constructed by residual signals. Abnormality can be detected by measuring the change of singular values. In addition, the features of noise and singular value is excavated, then the adaptive threshold is proposed for abnormality detection. Simulation data and the field-measured data are both used to verify the feasibility and accuracy of the proposed algorithm.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"302 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79735728","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378879
A. Bahrami, R. Faranda, H. Hafezi
Single-phase Series Compensators are very attractive electronic device for Distribution System Operator (DSO) in order to increase power quality level and load management in LV networks with reduced investment cost. One of the main important problem in LV network is due to voltage drop. The main approach to mitigate voltage drop, is employing custom power system devices as uninterruptible power supply or adapt solid-state transfer switch. Nowadays, also Dynamic Voltage Conditioners (DVC) or Dynamic Voltage Restorers (DVR) are effective apparatus and economically justified solution to compensate voltage disturbances. In contrary to the previous solutions, these devices can be efficiently used not only to solve the problem of voltage disturbance for the loads, but also to mitigate the disturbances of the upstream LV network due to a fault in the downstream by limiting the downstream fault current. Generally, there are two main strategies in order to limit downstream fault current in DVC or DVR devices: the conventional passive strategy and the innovative active one. This paper analyzes the operation principle of active solutions integrating a Fault Current Limiting (FCL) function into a DVC device, by simulation results in MATLAB environment and comparing their performance.
{"title":"Integration of fault current limiting function into a single-phase series compensator","authors":"A. Bahrami, R. Faranda, H. Hafezi","doi":"10.1109/ICHQP.2018.8378879","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378879","url":null,"abstract":"Single-phase Series Compensators are very attractive electronic device for Distribution System Operator (DSO) in order to increase power quality level and load management in LV networks with reduced investment cost. One of the main important problem in LV network is due to voltage drop. The main approach to mitigate voltage drop, is employing custom power system devices as uninterruptible power supply or adapt solid-state transfer switch. Nowadays, also Dynamic Voltage Conditioners (DVC) or Dynamic Voltage Restorers (DVR) are effective apparatus and economically justified solution to compensate voltage disturbances. In contrary to the previous solutions, these devices can be efficiently used not only to solve the problem of voltage disturbance for the loads, but also to mitigate the disturbances of the upstream LV network due to a fault in the downstream by limiting the downstream fault current. Generally, there are two main strategies in order to limit downstream fault current in DVC or DVR devices: the conventional passive strategy and the innovative active one. This paper analyzes the operation principle of active solutions integrating a Fault Current Limiting (FCL) function into a DVC device, by simulation results in MATLAB environment and comparing their performance.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"29 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80944647","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378912
Fangwei Xu, Lulu Wang, Jinshuai Zhao, Ying Chen, Lin Xu, Can Hu
Determining the harmonic responsibilities of utility and customer side at a PCC has been a great concern in harmonic research, and utility harmonic impedance is a key factor for assessing harmonic emission levels. When background harmonic is unstable, traditional methods have a large error. A new method is proposed in this paper to assess harmonic impedance based on minimum energy fluctuation. The method can calculate harmonic impedance by constructing an object function which minimizes the background harmonic energy fluctuation, without assuming background harmonic is stable. Simulation analysis indicates that the proposed method is more reliable to calculate harmonic impedance, which can reduce the error caused by the fluctuation of background harmonic.
{"title":"A new method for harmonic impedance estimation","authors":"Fangwei Xu, Lulu Wang, Jinshuai Zhao, Ying Chen, Lin Xu, Can Hu","doi":"10.1109/ICHQP.2018.8378912","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378912","url":null,"abstract":"Determining the harmonic responsibilities of utility and customer side at a PCC has been a great concern in harmonic research, and utility harmonic impedance is a key factor for assessing harmonic emission levels. When background harmonic is unstable, traditional methods have a large error. A new method is proposed in this paper to assess harmonic impedance based on minimum energy fluctuation. The method can calculate harmonic impedance by constructing an object function which minimizes the background harmonic energy fluctuation, without assuming background harmonic is stable. Simulation analysis indicates that the proposed method is more reliable to calculate harmonic impedance, which can reduce the error caused by the fluctuation of background harmonic.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86509731","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378840
H. Hafezi, R. Faranda, C. Gandolfi, R. Chiumeo
Power Quality (PQ) conditioning in LV distribution networks is an increasing concern within modern power system and Smart Grid systems. Several phenomena have classified in standard, among those, voltage sags and rms voltage drifts have been reported as most significant and frequent ones in both MV and LV distribution systems. Several solutions have been proposed to deal with these voltage disturbances. Dynamic Voltage Restorer (DVR) and Dynamic Voltage Conditioner (DVC) are the most promising solutions. Controlling these series connected devices is a challenge especially in single-phase schema which is an appreciated solution for Distribution System Operator (DSO). This paper investigates difference control strategies for single-phase DVC system. Control methods are explained in detail and MATLAB based simulation results are reported. Investigated control methods performance dealing with example voltage drop event have been reported.
{"title":"Investigation on different control methods for single-phase DVC","authors":"H. Hafezi, R. Faranda, C. Gandolfi, R. Chiumeo","doi":"10.1109/ICHQP.2018.8378840","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378840","url":null,"abstract":"Power Quality (PQ) conditioning in LV distribution networks is an increasing concern within modern power system and Smart Grid systems. Several phenomena have classified in standard, among those, voltage sags and rms voltage drifts have been reported as most significant and frequent ones in both MV and LV distribution systems. Several solutions have been proposed to deal with these voltage disturbances. Dynamic Voltage Restorer (DVR) and Dynamic Voltage Conditioner (DVC) are the most promising solutions. Controlling these series connected devices is a challenge especially in single-phase schema which is an appreciated solution for Distribution System Operator (DSO). This paper investigates difference control strategies for single-phase DVC system. Control methods are explained in detail and MATLAB based simulation results are reported. Investigated control methods performance dealing with example voltage drop event have been reported.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88010749","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378819
A. Larsson
Recurrent damped oscillation can occur more or less in the LV network due to different load connected. The recurrent oscillation has lower amplitude compared to other single damped oscillations events caused by e.g. lightning or switching actions. There is however a need to measure and quantify the recurrent oscillations to increase the understanding and possible consequences of these. This paper describes the phenomena and addresses different analyzing methods where ESPRIT seems to be the most promising analyzing method. In the end, the paper presents some result from a long term measurement at one site with recurrent oscillations and makes some comparisons of different analyzing methods.
{"title":"Assessment of recurrent oscillation parameters","authors":"A. Larsson","doi":"10.1109/ICHQP.2018.8378819","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378819","url":null,"abstract":"Recurrent damped oscillation can occur more or less in the LV network due to different load connected. The recurrent oscillation has lower amplitude compared to other single damped oscillations events caused by e.g. lightning or switching actions. There is however a need to measure and quantify the recurrent oscillations to increase the understanding and possible consequences of these. This paper describes the phenomena and addresses different analyzing methods where ESPRIT seems to be the most promising analyzing method. In the end, the paper presents some result from a long term measurement at one site with recurrent oscillations and makes some comparisons of different analyzing methods.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"11 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76425919","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378937
C. Hicks, Y. Baghzouz, S. Haddad
Recent advances in grid-tied photovoltaic inverters are allowing more flexibility including Volt/VAR control, variable power factor operation, and adjustable ride-through capability. Some new inverters can now operate in stand-alone mode in case of a power outage during the daylight hours. Inverters are also known to supply currents that are highly distorted when operating under low solar irradiance. This paper evaluates how such distortion varies with the power produced by a modern single-phase PV inverter through field measurements. Additionally, the quality of its supply voltage, when operating off-grid, is analyzed in terms of its harmonic content under different loading conditions.
{"title":"Power quality of residential PV system under low solar irradiance and off-grid operation","authors":"C. Hicks, Y. Baghzouz, S. Haddad","doi":"10.1109/ICHQP.2018.8378937","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378937","url":null,"abstract":"Recent advances in grid-tied photovoltaic inverters are allowing more flexibility including Volt/VAR control, variable power factor operation, and adjustable ride-through capability. Some new inverters can now operate in stand-alone mode in case of a power outage during the daylight hours. Inverters are also known to supply currents that are highly distorted when operating under low solar irradiance. This paper evaluates how such distortion varies with the power produced by a modern single-phase PV inverter through field measurements. Additionally, the quality of its supply voltage, when operating off-grid, is analyzed in terms of its harmonic content under different loading conditions.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"102 6 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77275451","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378901
F. Candeletti, E. Tironi, M. Carminati, E. Ragaini
Recent technological advances allow us to envisage the possibility of developing DC microgrids, opening also the way for the creation of DC connections in distribution networks to make the whole system more robust. This paper deals with the study of a DC microgrid supplied by two AC grids through LVDC lines. The control strategies proposed for the Front-End Converters (FECs) interfacing with the two AC grids allows high levels of quality to be achieved in the microgrid, even in the presence of sudden perturbations on the grid. Finally, this paper analyzes the problem associated with high frequency circulation current that, in the absence of suitable measures, would be reclosed through the star centers of the two transformers thus affecting the whole system, and describes a possible solution. The study of DC side ground faults concludes this paper, proposing a possible protection strategy based on the use of residual current devices.
{"title":"LVDC microgrid with double ac grid interface: Protection against dc ground faults and control strategies","authors":"F. Candeletti, E. Tironi, M. Carminati, E. Ragaini","doi":"10.1109/ICHQP.2018.8378901","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378901","url":null,"abstract":"Recent technological advances allow us to envisage the possibility of developing DC microgrids, opening also the way for the creation of DC connections in distribution networks to make the whole system more robust. This paper deals with the study of a DC microgrid supplied by two AC grids through LVDC lines. The control strategies proposed for the Front-End Converters (FECs) interfacing with the two AC grids allows high levels of quality to be achieved in the microgrid, even in the presence of sudden perturbations on the grid. Finally, this paper analyzes the problem associated with high frequency circulation current that, in the absence of suitable measures, would be reclosed through the star centers of the two transformers thus affecting the whole system, and describes a possible solution. The study of DC side ground faults concludes this paper, proposing a possible protection strategy based on the use of residual current devices.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"10 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87061179","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378850
M. D. de Castro e Silva, A. de Leles Ferreira Filho, Guilherme Zanetti Rosa, C. C. Abada
Three-phase induction motors (TIM) have a great weight in the load of electrical systems all over the world. The modeling of this equipment is fundamental for the planning of their applications. The temperature at which this machine operates is a quantity whose analysis becomes important in power quality studies, since it has a direct influence on the lifespan of such equipment. This paper compares the results of the measured temperatures of a TIM in laboratory when submitted to several conditions of voltage unbalance, like those from i) the use of a simplified thermal model and ii) an Artificial Neural Network (ANN). With this, it is possible to identify the most effective strategy for simulations involving voltage unbalance.
{"title":"Evaluation of the performance of a simplified thermal model of a three phase induction motor submitted to voltage imbalances","authors":"M. D. de Castro e Silva, A. de Leles Ferreira Filho, Guilherme Zanetti Rosa, C. C. Abada","doi":"10.1109/ICHQP.2018.8378850","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378850","url":null,"abstract":"Three-phase induction motors (TIM) have a great weight in the load of electrical systems all over the world. The modeling of this equipment is fundamental for the planning of their applications. The temperature at which this machine operates is a quantity whose analysis becomes important in power quality studies, since it has a direct influence on the lifespan of such equipment. This paper compares the results of the measured temperatures of a TIM in laboratory when submitted to several conditions of voltage unbalance, like those from i) the use of a simplified thermal model and ii) an Artificial Neural Network (ANN). With this, it is possible to identify the most effective strategy for simulations involving voltage unbalance.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"38 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87200914","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 : 2018-05-01DOI: 10.1109/ICHQP.2018.8378849
Xiaojing Wang, Jiawei Xu, Jing Yong, Lulu Li
A new method for single-phase grounding fault location in small current grounding system is proposed, in which thyristor-based signal generator (SG) and signal detectors (SD) are included. The thyristor-based SG is connected between the phase line and ground, and SDs are arrayed along the distribution lines. After a single-phase grounding fault occurs, any thyristor connected between non-faulted phase and ground will be triggered. An active and highly distinguishable current is superimposed on line current. Based on strength estimation and feature analysis of the active signal, double-subtraction algorithm is proposed, detection parameters are selected, and the detection criterions are determined. At last, sensitivity analysis and verification studies demonstrate the efficiency and reliability of this method, which meets the demand of the practical engineering very well.
{"title":"A new active method for ground fault location in small current grounding system","authors":"Xiaojing Wang, Jiawei Xu, Jing Yong, Lulu Li","doi":"10.1109/ICHQP.2018.8378849","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378849","url":null,"abstract":"A new method for single-phase grounding fault location in small current grounding system is proposed, in which thyristor-based signal generator (SG) and signal detectors (SD) are included. The thyristor-based SG is connected between the phase line and ground, and SDs are arrayed along the distribution lines. After a single-phase grounding fault occurs, any thyristor connected between non-faulted phase and ground will be triggered. An active and highly distinguishable current is superimposed on line current. Based on strength estimation and feature analysis of the active signal, double-subtraction algorithm is proposed, detection parameters are selected, and the detection criterions are determined. At last, sensitivity analysis and verification studies demonstrate the efficiency and reliability of this method, which meets the demand of the practical engineering very well.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"71 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90404761","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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