Comprehensive evaluation method for power quality of power distribution network

The invention provides a comprehensive evaluation method for the power quality of a power distribution network, and the method comprises the steps: firstly, building a power quality multi-index evaluation matrix through comprehensively considering the voltage qualified rate, three-phase imbalance, h...

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Hauptverfasser:	LIU ZHENYANG, WANG JUAN, NI BING, CHANG JUN, MIN LANGENG, XU XINGCHUN, XUE LI, OUYANG LIJIAN, ZHANG HUI, ZHOU TONG, LING WEI, HUANG WEI, ZHOU KAI, LIU LI, CHEN HAITAO, LIU DI, WANG HAO, BAI ZHAOYONG, LIU XIN, HAN YI, XIA YONG, WU CHAO, YANG JUNZHONG, XU LEI, SUN AIBING, WANG WANYONG, WEI YAYI, YIN XING, SHI AIJUN, YAN XINWEI, XU JUN, LIU XIANG, JIANG XIAOJIE, SUN LILI, ZENG YANG, CHEN YA, JIANG KE, ZHU CHEN, LIAO XIAOYUN, HUANG YOUDE, WANG ZHIHUA, JU LING, MAO YINA, ZHANG JING, YU JIN, LUAN ZHONGFEI, XU YAO, TANG HAITAO, BAI SHAOFENG, WANG TINGLIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The invention provides a comprehensive evaluation method for the power quality of a power distribution network, and the method comprises the steps: firstly, building a power quality multi-index evaluation matrix through comprehensively considering the voltage qualified rate, three-phase imbalance, harmonic waves, frequency, power factors and other influence factors; afterwards, obtaining and analyzing distribution transformer information to obtain data values of all influence factors required by the evaluation matrix, and performing normalization processing to facilitate subsequent unified evaluation of the electric energy quality; then, based on expert experience and least square method optimization, determining a weight coefficient of each influence factor; and finally, multiplying each factor data value after normalization processing by the sum of the products of the corresponding weight coefficients to obtain an evaluation result of the power quality. According to the invention, a multi-dimensional evalua