Pub Date : 2018-05-13DOI: 10.1109/ICHQP.2018.8378822
Elaine Santos, C. Duque, A. Cerqueira
The present work aims to propose a new technique for harmonic and inter-harmonic estimation using the rotational invariance technique (ESPRIT) associated with a filter bank used to split the input signal in sub-bands, named here as ESPRIT-FB. This approach aims to improve both the performance and the computational cost of the ESPRIT standalone. The performance and computational cost of the ESPRIT-FB were evaluated in simulations, showing that both were improved with respect to the standard ESPRIT.
{"title":"Harmonic and inter-harmonic estimation using esprit associated with filter bank","authors":"Elaine Santos, C. Duque, A. Cerqueira","doi":"10.1109/ICHQP.2018.8378822","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378822","url":null,"abstract":"The present work aims to propose a new technique for harmonic and inter-harmonic estimation using the rotational invariance technique (ESPRIT) associated with a filter bank used to split the input signal in sub-bands, named here as ESPRIT-FB. This approach aims to improve both the performance and the computational cost of the ESPRIT standalone. The performance and computational cost of the ESPRIT-FB were evaluated in simulations, showing that both were improved with respect to the standard ESPRIT.","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":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86555587","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378927
A. Colavitto, A. Vicenzutti, G. Sulligoi, G. Lipardi
In this paper a conservative approach to build a Power Electronic Power Distribution System (PEPDS) has been used, introducing into an existing islanded AC system a Static Converter Interfaced Generator (SCIG). The paper tries to assess the power quality issues (in terms of v/f regulation) that can possibly arise when integrating conventional mechanical-based generators with new ones in an islanded power system, using a mathematical modelling approach. Two different phase regulators for the SCIG output voltage vector have been evaluated and compared, depending on the operative requirements of the SCIG prime mover (frequency regulation or fixed power injection). Finally, a set of simulations has been performed to assess the effect of the SCIG grid-side regulators parametric variations on the system's v/f regulation performance.
{"title":"Voltage and frequency regulation in high power AC islanded microgrid with static converter interfaced generators","authors":"A. Colavitto, A. Vicenzutti, G. Sulligoi, G. Lipardi","doi":"10.1109/ICHQP.2018.8378927","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378927","url":null,"abstract":"In this paper a conservative approach to build a Power Electronic Power Distribution System (PEPDS) has been used, introducing into an existing islanded AC system a Static Converter Interfaced Generator (SCIG). The paper tries to assess the power quality issues (in terms of v/f regulation) that can possibly arise when integrating conventional mechanical-based generators with new ones in an islanded power system, using a mathematical modelling approach. Two different phase regulators for the SCIG output voltage vector have been evaluated and compared, depending on the operative requirements of the SCIG prime mover (frequency regulation or fixed power injection). Finally, a set of simulations has been performed to assess the effect of the SCIG grid-side regulators parametric variations on the system's v/f regulation performance.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"106 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78397786","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378825
Francinei L. Vieira, J. Filho, P. M. Silveira, C. A. Guerrero, M. P. Leite
High impedance faults (HIFs) present great difficulty of identification and location in distribution networks (DN) due to their characteristics of low current magnitude. Advances in smart grids and distribution automation allow the detection of disturbances that were previously unnoticeable in DN. This work aims to present a new method for detection and location of HIFs from smart meters placed at strategic points in the feeder, using a voltage unbalance based approach. The methodology was evaluated through simulations in MATLAB / Simulink, focusing on the detection of high impedance series faults. The results showed that the algorithm effectively identifies broken conductors, with or without ground faults, located either at the load or source side. Once technical and economic feasibility is proven, these methods can assist energy distribution utilities in restoring the normal operating conditions of the distribution network.
{"title":"High impedance fault detection and location in distribution networks using smart meters","authors":"Francinei L. Vieira, J. Filho, P. M. Silveira, C. A. Guerrero, M. P. Leite","doi":"10.1109/ICHQP.2018.8378825","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378825","url":null,"abstract":"High impedance faults (HIFs) present great difficulty of identification and location in distribution networks (DN) due to their characteristics of low current magnitude. Advances in smart grids and distribution automation allow the detection of disturbances that were previously unnoticeable in DN. This work aims to present a new method for detection and location of HIFs from smart meters placed at strategic points in the feeder, using a voltage unbalance based approach. The methodology was evaluated through simulations in MATLAB / Simulink, focusing on the detection of high impedance series faults. The results showed that the algorithm effectively identifies broken conductors, with or without ground faults, located either at the load or source side. Once technical and economic feasibility is proven, these methods can assist energy distribution utilities in restoring the normal operating conditions of the distribution network.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"46 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79686699","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378828
G. N. Lopes, F. P. Santilio, A. B. Vasconcellos, Priscila Costa Nascimento, Etiane Oliveira Ponciano de Carvalho, R. Quadros, T. I. R. de Carvalho Malheiro
The paper analyzes how the switching system of an electronic load influences the reactive power of the bus, and how they behave as active filters when connected in parallel. In laboratory, didactic electronic loads were used, both called Dimmer Flex, and the works divided into three cases. In the first case, the electronic load starts applying voltage, after half of each half-cycle, the current was interrupted and, according to the meters, reactive power was injected into the bus. In the second case, Dimmer Flex was used to break the start of the current at around half of the each half-cycle, and reactive power was absorbed from the bus. In the third case, the first device was positioned in parallel with the second, and the reactive power flow was almost completely compensated and the harmonic distortion value of the current decreased, proving its role as an active filter.
{"title":"Analysis of switching electronic loads operating as active filter on a bus","authors":"G. N. Lopes, F. P. Santilio, A. B. Vasconcellos, Priscila Costa Nascimento, Etiane Oliveira Ponciano de Carvalho, R. Quadros, T. I. R. de Carvalho Malheiro","doi":"10.1109/ICHQP.2018.8378828","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378828","url":null,"abstract":"The paper analyzes how the switching system of an electronic load influences the reactive power of the bus, and how they behave as active filters when connected in parallel. In laboratory, didactic electronic loads were used, both called Dimmer Flex, and the works divided into three cases. In the first case, the electronic load starts applying voltage, after half of each half-cycle, the current was interrupted and, according to the meters, reactive power was injected into the bus. In the second case, Dimmer Flex was used to break the start of the current at around half of the each half-cycle, and reactive power was absorbed from the bus. In the third case, the first device was positioned in parallel with the second, and the reactive power flow was almost completely compensated and the harmonic distortion value of the current decreased, proving its role as an active filter.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"7 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84395516","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378824
X. Xu, A. Collin, S. Djokic, S. Müller, J. Meyer, J. Myrzik, R. Langella, A. Testa
This paper is the first part of a two-part series on the development of aggregate frequency domain models of PV inverters (PVIs). The developed PVI models are expressed in the form of harmonic admittance matrix (HAM) of a coupled Norton model, also known as the harmonic fingerprint model (HFM). The development of accurate measurement-based HFMs requires considerable amount of measurements, which further increase in case of PVIs, as they typically exhibit strong power- dependent changes in harmonic emission. The authors propose a novel approach, which significantly reduces the number of measurements, as it requires only two sets of measurements at a single operating power: one with the fundamental voltage component, and another with individual voltage harmonics added one by one to the fundamental component. These two sets of measurements are used to calculate a “reference HAM”, which is then multiplied by two coefficients calculated from the power-dependent changes of the PVIs total subgroup current harmonic distortion, THDSj. The presented methodology is illustrated and validated using a comprehensive laboratory tests with three different PVIs and it can be easily applied to other types of power electronic devices with similar characteristics.
{"title":"Aggregate harmonic fingerprint models of PV inverters. part 1: Operation at different powers","authors":"X. Xu, A. Collin, S. Djokic, S. Müller, J. Meyer, J. Myrzik, R. Langella, A. Testa","doi":"10.1109/ICHQP.2018.8378824","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378824","url":null,"abstract":"This paper is the first part of a two-part series on the development of aggregate frequency domain models of PV inverters (PVIs). The developed PVI models are expressed in the form of harmonic admittance matrix (HAM) of a coupled Norton model, also known as the harmonic fingerprint model (HFM). The development of accurate measurement-based HFMs requires considerable amount of measurements, which further increase in case of PVIs, as they typically exhibit strong power- dependent changes in harmonic emission. The authors propose a novel approach, which significantly reduces the number of measurements, as it requires only two sets of measurements at a single operating power: one with the fundamental voltage component, and another with individual voltage harmonics added one by one to the fundamental component. These two sets of measurements are used to calculate a “reference HAM”, which is then multiplied by two coefficients calculated from the power-dependent changes of the PVIs total subgroup current harmonic distortion, THDSj. The presented methodology is illustrated and validated using a comprehensive laboratory tests with three different PVIs and it can be easily applied to other types of power electronic devices with similar characteristics.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"87 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76104928","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378923
R. Lamedica, M. Maccioni, A. Ruvio, P. Ribeiro
The paper proposes a methodological approach to manage the electric vehicles recharging in an isolated power system characterized by low short circuit power. Focusing on harmonic disturbances, current harmonics injected in the network depend on the specific EV power converter. The model carried out allows for the evaluation of harmonic disturbances under variable conditions for non-linear loads and their harmonic spectra. The methodology allows estimating both current and voltage total harmonic distortion (THDV, THDI) at the point of common coupling (PCC). An algorithm able to manage and control the EV charging in a parking area has been developed in order to keep the THDV under a threshold limit.
{"title":"EVs recharging management to maintain high PQ levels in LV islanded networks","authors":"R. Lamedica, M. Maccioni, A. Ruvio, P. Ribeiro","doi":"10.1109/ICHQP.2018.8378923","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378923","url":null,"abstract":"The paper proposes a methodological approach to manage the electric vehicles recharging in an isolated power system characterized by low short circuit power. Focusing on harmonic disturbances, current harmonics injected in the network depend on the specific EV power converter. The model carried out allows for the evaluation of harmonic disturbances under variable conditions for non-linear loads and their harmonic spectra. The methodology allows estimating both current and voltage total harmonic distortion (THDV, THDI) at the point of common coupling (PCC). An algorithm able to manage and control the EV charging in a parking area has been developed in order to keep the THDV under a threshold limit.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"69 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72891755","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378832
A. Cataliotti, V. Cosentino, D. Di Cara, G. Tinè
The paper investigates the suitability of using power ratio parameters for harmonic emissions assessment at the point of common coupling (PCC). The study is carried out starting from the IEEE Std. 1459-2010 apparent power decomposition, where power factors are defined for evaluating line utilization and harmonic pollution levels. In addition, the study investigates the behavior of new parameters, which are expressed in terms of ratio between IEEE Std. 1459-2010 power quantities. The study is carried out for both single-phase and three-phase case, also considering the presence of capacitors.
{"title":"IEEE Std. 1459 power quantities ratio approaches for simplified harmonic emissions assessment","authors":"A. Cataliotti, V. Cosentino, D. Di Cara, G. Tinè","doi":"10.1109/ICHQP.2018.8378832","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378832","url":null,"abstract":"The paper investigates the suitability of using power ratio parameters for harmonic emissions assessment at the point of common coupling (PCC). The study is carried out starting from the IEEE Std. 1459-2010 apparent power decomposition, where power factors are defined for evaluating line utilization and harmonic pollution levels. In addition, the study investigates the behavior of new parameters, which are expressed in terms of ratio between IEEE Std. 1459-2010 power quantities. The study is carried out for both single-phase and three-phase case, also considering the presence of capacitors.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"112 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85831601","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378929
Michał Małaczek, I. Wasiak
In this paper a novel concept of improving power quality (PQ) in low voltage networks with distributed generation (DG) is proposed. In contrast to traditional methods which require the application of dedicated resources to compensate for power quality disturbances, the proposed idea is simply to form a microgrid (MG) capable to isolate from the utility grid and operate islanded when a disturbance occur. In the paper conditions for island creation are discussed and a control strategy is presented for a small-scale active network with microturbine, renewable energy sources, loads and storage system. The strategy assumes using energy storage unit as a grid forming unit for islanded operation and a central controller for supervising the network operation in grid-connected and islanded modes. The part of strategy is islanding condition detection method which is based on immunity curve defined for the considered network. Performance of the proposed strategy is presented as a reaction of the network on voltage dips, however the idea is applicable to any PQ disturbance of unacceptable level occurring in the utility grid. For the considered network a simulation model has been developed using PSCAD/EMTDC platform. Simulation results are presented in the paper which illustrate the operation of the control system and show the microgrid behavior after transition from grid-connected to islanded operation mode.
{"title":"Forming a microgrid to islanded operation as a mean to improve quality of supply in low voltage networks with distributed generation","authors":"Michał Małaczek, I. Wasiak","doi":"10.1109/ICHQP.2018.8378929","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378929","url":null,"abstract":"In this paper a novel concept of improving power quality (PQ) in low voltage networks with distributed generation (DG) is proposed. In contrast to traditional methods which require the application of dedicated resources to compensate for power quality disturbances, the proposed idea is simply to form a microgrid (MG) capable to isolate from the utility grid and operate islanded when a disturbance occur. In the paper conditions for island creation are discussed and a control strategy is presented for a small-scale active network with microturbine, renewable energy sources, loads and storage system. The strategy assumes using energy storage unit as a grid forming unit for islanded operation and a central controller for supervising the network operation in grid-connected and islanded modes. The part of strategy is islanding condition detection method which is based on immunity curve defined for the considered network. Performance of the proposed strategy is presented as a reaction of the network on voltage dips, however the idea is applicable to any PQ disturbance of unacceptable level occurring in the utility grid. For the considered network a simulation model has been developed using PSCAD/EMTDC platform. Simulation results are presented in the paper which illustrate the operation of the control system and show the microgrid behavior after transition from grid-connected to islanded operation mode.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"6 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85401772","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378821
Huang Wen-xi, Xia Xian-yong, Jin Yun-ling, Yao Dong-Fang
Although characterization of voltage sag is an essential part of voltage sag studies, the way that taking magnitude and duration as acknowledged basic characteristics cannot describe sag characteristics versus time. Hence automatic segmentation, which divides monitoring data sequence into segments, and characterization algorithm are proposed in this paper. The difficulty that how to divide segment automatically is overcome through two-stage segmentation algorithm based on singular value decomposition method. Then multi-dimension characteristics such as magnitude, duration, phase-angle jump, sag type and so on can be calculated. Hundreds of sag events data including measured in field and synthetic are utilized to validate the effectiveness and reliability of proposed method. Moreover, the detection and characterization algorithm are ported to installed monitors and backstage data center with C programming, timesaving and practical get validated.
{"title":"Automatic segmentation method for voltage sag detection and characterization","authors":"Huang Wen-xi, Xia Xian-yong, Jin Yun-ling, Yao Dong-Fang","doi":"10.1109/ICHQP.2018.8378821","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378821","url":null,"abstract":"Although characterization of voltage sag is an essential part of voltage sag studies, the way that taking magnitude and duration as acknowledged basic characteristics cannot describe sag characteristics versus time. Hence automatic segmentation, which divides monitoring data sequence into segments, and characterization algorithm are proposed in this paper. The difficulty that how to divide segment automatically is overcome through two-stage segmentation algorithm based on singular value decomposition method. Then multi-dimension characteristics such as magnitude, duration, phase-angle jump, sag type and so on can be calculated. Hundreds of sag events data including measured in field and synthetic are utilized to validate the effectiveness and reliability of proposed method. Moreover, the detection and characterization algorithm are ported to installed monitors and backstage data center with C programming, timesaving and practical get validated.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"8 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80061485","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 : 2018-05-13DOI: 10.1109/ICHQP.2018.8378872
D. Serfontein, J. Rens, Gerhard Botha
In accordance with the IEC 61000-3-6, the evaluation of the harmonic emissions requires an accurate harmonic impedance representation of the system. However, the assessment of a harmonic impedance is understood to be a very complex problem and that the available methods are not entirely satisfactory. Yet, utilities and other network users are expected to prove compliance to apportioned emission limits. To enable the online assessment of harmonic emissions, this paper proposes the use of prevailing phasors to enable the monitoring of the network's harmonic impedance. The proposed method has been validated using network simulations and practical measurements at a windfarm were used for offline assessments.
{"title":"Harmonic impedance assessment using prevailing phasors","authors":"D. Serfontein, J. Rens, Gerhard Botha","doi":"10.1109/ICHQP.2018.8378872","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378872","url":null,"abstract":"In accordance with the IEC 61000-3-6, the evaluation of the harmonic emissions requires an accurate harmonic impedance representation of the system. However, the assessment of a harmonic impedance is understood to be a very complex problem and that the available methods are not entirely satisfactory. Yet, utilities and other network users are expected to prove compliance to apportioned emission limits. To enable the online assessment of harmonic emissions, this paper proposes the use of prevailing phasors to enable the monitoring of the network's harmonic impedance. The proposed method has been validated using network simulations and practical measurements at a windfarm were used for offline assessments.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"338 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75482624","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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