2018 18th International Conference on Harmonics and Quality of Power (ICHQP)最新文献_第10页

A balance compensation method based on negative sequence weighted equivalent model of unbalanced load 基于负序加权等效模型的不平衡负荷平衡补偿方法

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378945

Liao Kunyu, Tao Shun, Zhao Lei, Yao Liting, Xiao Xiangning

{"title":"A balance compensation method based on negative sequence weighted equivalent model of unbalanced load","authors":"Liao Kunyu, Tao Shun, Zhao Lei, Yao Liting, Xiao Xiangning","doi":"10.1109/ICHQP.2018.8378945","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378945","url":null,"abstract":"when designing a passive network to compensate unbalanced load, an ideal and balanced voltage source is usually taken to generate the voltage at the point of common coupling (PCC), but the compensation results is not so good due to the unbalance of PCC voltage in real systems. With regard to three- phase three-wire circuit, the system side is equivalent to Thevenin model, and the negative sequence current of the load is decomposed into three parts, after being weighted and allotted into three phases, each part then rotates to the positive sequence. Based on the above procedure, the negative sequence weighted equivalent model of three-phase unbalanced load is established in this paper. With equivalent load parameters, the negative- sequence-weighted formula of passive compensation network parameters is presented utilizing the Steinmetz theory. Since the network parameters are functions of negative-sequence-weights, the proposed compensation method can provide a theoretical basis for optimal balance compensation. Simulation results verify the validity of the equivalent model and compensation method proposed.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"89 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":"80336106","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}

引用次数: 1

Responsibility division optimization for multiple harmonic sources based on the improved hampel weight function 基于改进hampel权函数的多谐源责任划分优化

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378845

Jingzong Zhang, Hongkun Chen, Linghua Zeng, T. Ding

引用次数: 1

Transient detection in phasor measurement units with kalman filtering 卡尔曼滤波相量测量单元的瞬态检测

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378920

M. de Ápraiz, R. Diego, J. Barros

引用次数: 4

Investigation of high frequency emissions (supraharmonics) from small, grid-tied, photovoltaic inverters of different topologies 不同拓扑结构的小型并网光伏逆变器高频发射(超谐波)的研究

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378926

Dilini Darmawardana, S. Perera, D. Robinson, P. Ciufo, Jan Meyer, M. Klatt, U. Jayatunga

{"title":"Investigation of high frequency emissions (supraharmonics) from small, grid-tied, photovoltaic inverters of different topologies","authors":"Dilini Darmawardana, S. Perera, D. Robinson, P. Ciufo, Jan Meyer, M. Klatt, U. Jayatunga","doi":"10.1109/ICHQP.2018.8378926","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378926","url":null,"abstract":"Due to the increasing number and capacity of grid connected power electronic interfaces associated with distributed generating systems, there is increasing concern on the associated power quality problems. Amongst these, high frequency (HF) emissions (referred to as Supraharmonics) in the range 2–150 kHz has become a topic of growing interest within power quality research communities. An increasingly prominent grid connected devices which can contribute to these HF emissions are the photovoltaic (PV) systems. In this paper, HF emissions from seven small (output power ≤ 10kW), grid-tied, photovoltaic inverters (both single phase inverters and three phase inverter composed of three single phase inverters) are analysed using measurements carried out under controlled conditions in laboratory environments. It is shown that under fixed network conditions, these HF emissions are affected by the MPPT (Maximum Power Point Tracking) voltage and the output power level of the PV inverter. Moreover, a strong correlation between the behaviour of HF emissions and the topologies of inverters was observed; an important factor in developing high frequency models of PV inverters.","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":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73916524","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}

引用次数: 16

A stochastic study of harmonic voltage distortion considering single-phase photovoltaic inverters 考虑单相光伏逆变器的谐波电压畸变随机研究

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378889

D. Schwanz, T. Busatto, M. Bollen, A. Larsson

引用次数: 3

Introductory results of tests of algorithms for recreation of voltage variation with voltage fluctuation indices 基于电压波动指数的电压变化再现算法的试验结果介绍

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378910

M. Michalski

引用次数: 8

Comparison of methods using only voltage measurements for detecting the origin of voltage sags in the modern distribution networks 现代配电网中仅用电压测量方法检测电压跌落来源的比较

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378844

C. Noce, M. De Santis, P. Varilone, P. Verde

引用次数: 4

Impact of voltage sag on electrical system for water pumping of Mae Moh mine 电压暂降对梅磨矿抽水电气系统的影响

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378839

W. Boonkird, S. Premrudeepreechacharn, Y. Baghzouz

引用次数: 0

Optimal planning of PV inverter in the presence of capacitor bank in medium-voltage distribution networks 中压配电网中存在电容器组时光伏逆变器的优化规划

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378862

Abdelfatah Ali, D. Raisz, K. Mahmoud

{"title":"Optimal planning of PV inverter in the presence of capacitor bank in medium-voltage distribution networks","authors":"Abdelfatah Ali, D. Raisz, K. Mahmoud","doi":"10.1109/ICHQP.2018.8378862","DOIUrl":"https://doi.org/10.1109/ICHQP.2018.8378862","url":null,"abstract":"As the penetration level of the photovoltaic (PV) system increases over the coming decades, reverse power flows on the distribution feeder will happen and the associated voltage rise might lead to violations of voltage limits. The severity of the voltage regulation problem depends on the relative size and location of PV system, loads, and the distribution feeder topology. This paper proposes an approach to solve the voltage rise problem associated with PV system and to improve the total voltage deviation by optimally increasing the capacity of the PV inverter over the capacity of the PV modules in the presence of capacitor banks. An optimization model is constructed to calculate the optimal inverter capacity with minimizing the cost of PV inverter as well as the total voltage deviation on the distribution network. The overall system constraints are considered in the optimization model. The proposed approach is tested using the IEEE 119-node distribution network. The effectiveness of the proposed approach is demonstrated by calculating the optimal capacity of the PV inverter for mitigating the voltage rise problem and reducing the total voltage deviation.","PeriodicalId":6506,"journal":{"name":"2018 18th International Conference on Harmonics and Quality of Power (ICHQP)","volume":"785 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":"76919236","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}

引用次数: 1

Immunity test of LED lamps based on IEC 61000-4 19 and unexpected consequence 基于IEC 61000- 419的LED灯具抗扰度测试及意外后果

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI: 10.1109/ICHQP.2018.8378853

S. Sakar, S. Rönnberg, M. Bollen

引用次数: 6