Power Quality Comprehensive Evaluation for Low-Voltage DC Power Distribution System

With the development of low-voltage DC (LVDC) power distribution system and more and more strict requirements on power quality of consumers, it has been more and more important to give a power quality comprehensive evaluation method for LVDC power distribution system. However, the existing comprehensive method of power quality, which focuses on AC power system, is not applicable to DC power distribution system well. In order to study DC power distribution system better and improve the power quality problems effectively, a new power quality comprehensive evaluation method for LVDC power distribution system should be put forward. This paper establishes the comprehensive evaluation indicator system for LVDC power distribution system, adopts the comprehensive weighting method combined with analytic hierarchy process (AHP) and entropy weight coefficient method, and applies grey relational analysis (GRA) in the comprehensive evaluation of power quality. Finally, a case study shows that the proposed comprehensive evaluation method can effectively evaluate the power quality of the object.

[1]  Fu Xueqia.  Power Quality Comprehensive Evaluation Method for Distributed Generation , 2014 .

[2]  Sun Yuanzhang,et al.  A Grey Comprehensive Evaluation Method of Power Quality Based on Optimal Combination Weight , 2012 .

[3]  Yang Huan.  Review on the Research of Distributed Generation Technology and Its Impacts on Electric Power Systems , 2011 .

[4]  Jin Zhong,et al.  Converter controller design methods for wind turbine systems in the DC micro grid , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[5]  Yao Gan.  Overview of Research on DC Micro-Grid for Distributed Power Access , 2015 .

[6]  W. L. Lee,et al.  A strategy for prioritising interactive measures for enhancing energy efficiency of air-conditioned buildings , 2003 .

[7]  Liu Yingying.  Comparison of power quality comprehensive evaluation methods , 2008 .

[8]  Li Lulu.  A Review of Low Voltage DC Power Distribution System , 2013 .

[9]  Ai Qian,et al.  Present Situation of Research on Microgrid and Its Application Prospects in China , 2008 .

[10]  Luo Hua-wei.  A Survey on Distributed Generation and Its Networking Technology , 2008 .

[11]  Qi Zhi-ping.  Impact and Improvement of Distributed Generation on Distribution Network Voltage Quality , 2008 .

[12]  K. Mui,et al.  Efficiency assessment of indoor environmental policy for air-conditioned offices in Hong Kong , 2009 .

[13]  Wang Jing.  Power quality evaluation based on entropy principles , 2009 .

[14]  Xiao Xiangning,et al.  Survey on Methods for Measurement of Voltage Fluctuations and Flicker , 2009 .

[15]  Bu Le-ping.  STATOR WINDING FAULT DIAGNOSIS METHOD OF INDUCTION MOTOR BASED ON COHERENCE ANALYSIS , 2005 .

[16]  Jia Legan.  Running Energy Efficiency Assessment in Electric Vehicle Charging Station Based on AHP-Entropy Method , 2015 .

[17]  Hu Jin-song.  Grey Correlation Based on Combinational Weight and Its Application , 2006 .

[18]  Yang Xiaobi,et al.  Energy Efficiency Index System for Distribution Network Based on Analytic Hierarchy Process , 2013 .

[19]  Xiao Xiang-ning.  Analysis of New Method on Power Quality Comprehensive Evaluation for Regional Grid , 2008 .

[20]  Yuan Xiaodong.  Application of gray theory in power quality comprehensive evaluation , 2009 .

[21]  Guo Junjie.  Research of Electric Parameters Measuring System Based on DSP , 2006 .

[22]  He Zheng-you,et al.  Power Quality Comprehensive Evaluation Combining Subjective Weight With Objective Weight , 2009 .

[23]  Xu Jun.  Synthetic evaluation of power quality based on improved AHP and probability statistics , 2009 .