The Research of Unbalanced Three-Phase Adjustment in Distribution Network

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To balance three-phase loads in distribution network with abundant of single-phase loads, the idea of three-phase adjustment and wiring method is proposed in this paper. Three-phase adjustment controller is designed, and the least load adjustment strategy is proposed, which can adjust the three-phase load to roughly balance automatically. The system can solve the serious three-phase unbalance problem of the lines with single-phase load, which may instead of capacitive compensation in low voltage distribution network. It can improve power quality and reduce network losses.

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649-654

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Li Chaoying, Li Baoxian. Wang Ruiqi. Analysis of Three Phase Unbalanced Technology of Distribution Transformer and Management Measures[J]. Value Engineering, 2011, (14): 47-48.

Google Scholar

[2] Guo Feng, Yao Li-na, Liu Heng, Wu Shan-shan. Theoretical Line Loss Calculation with Three-phase Unbalance Degree for Low-voltage Distribution Network[J]. Electric Power Automation Equipment, 2007, 27(11): 51-54.

Google Scholar

[3] Lin Zhi-xiong, Chen Yan, Cai Jin-ding, Li Tian-you. Impact and Countermeasure of Three-phase Unbalanced Operation for Low Voltage Distribution Systems[J]. Journal of Electric Power Science and Technology, 2009, 24(3): 63-67.

Google Scholar

[4] Tong Xiang-qian, Wang Hai-yan,Yin Jun. Calculation Method of three-phase Unbalance Factor Based on Load Power[J]. Proceedings of the CSU-EPSA, 2011, 23(2): 24-30.

Google Scholar

[5] Zhou Lin, Zhang You-yu, Liu Qiang, Ma Yong-qiang, Wu Jian. Comparative Study of Three-Phase Unbalance Algorithm[J]. East China Electric Power, 2010, 38(2): 210-215.

Google Scholar

[6] Quan Hui-min, Dai Yu-Xing, Tian Li. Three-phase Unbalance Monitoring System Based on DSP[J]. Control Engineering of China, 2009, 16(S0): 180-185.

Google Scholar

[7] Zheng Yanwei, Pan Yuqi, and Feng Zhiquan. The Research of Early-warning for Overload and Unbalanced Three-phase of Distribution Transformer[C]. Proceeding of 2011 International Conference on Energy and Environment, New York: IEEE, vol. 2: 2011, 439-441.

Google Scholar

[8] Sun Zhe, Liang Qingyang, Liang Hongyang, Guo Xiqing. The Algorithm of Three-phase Unbalance Compensation Based on Instantaneous Reactive Power Theory and Fuzzy PID. Metrology & Measurement Technology, 2010, 30(5): 1-29.

Google Scholar

[9] Li Qing-chuan. Research on New Reactive-load Compensation Algorithm for Three Phase Unbalance Load[J]. Nonferrous Metallurgical Equipment, 2009, (4): 9-12.

Google Scholar

[10] Wei Gang, Chen Senhuan, Cai Yang, Lu Wei. Compensation for three-phase unbalanced load based on instantaneous reactive power theory[J]. Electric Power Automation Equipment, 2010, 30(2): 59-63.

Google Scholar

[11] Lin Zhixiong, Li Tianyou, Cai Jinding. Research on All-capacitor Adjusted Compensation for Low Voltage Three-phase Unbalance Distribution Network[J]. Distribution & Utilization, 2009, 26(6): 66-69.

Google Scholar

[12] Liu Wenhua, Liu Wenhui, Lu Junfeng, Liu Bing. Balancing Compensation of Three-phase Unbalanced Load with Single Phase STATCOM[J]. Power Electronics, 2003, 37(4): 10-12.

Google Scholar

[13] Chen Yu-xin, Fu Xiang-yun, Gu Qiang. Control Method of STATCOM Compensated with Three-phase Unbalanced Load[J]. Journal of Heilongjiang Hy draulic Engineering College, 2007, 34(4): 75-77.

Google Scholar

[14] Xiao Xiang-ning, Gao Ben-feng, Zhao Cheng-yong, Li Guang-kai. Hybrid Series Compensation Scheme Using Single-phase SSSC[J]. High Voltage Engineering, 2010, 36(11): 2803-2807.

Google Scholar

[15] Zhang Yonggao, Gao Yanli, Liu Huan, Long Lizhong. A Design of Soft Phase Lock Loop in Three-phase PWM Rectifier under Unbalance Power Grid[J]. Journal of East China Jiaotong University, 2011, 28(5): 14-17.

Google Scholar

[16] Xiong Yong-jun, Xiao Hui-rong, Zhang Jun, Wu Wen-feng. Design of Reactive Power Compensation Device in Medium-Low Voltage Unbalanced Distribution Networks[J]. Computer Simulation, 2011, 28(10): 278-181.

Google Scholar