JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (6): 95-99.doi: 10.6040/j.issn.1672-3961.0.2017.163

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SOC optimization on power supply reliability of wind-storage system

ZHANG Qisong1, FU Jun1, SHI Zhaohui1, YANG Xiao2, JIA Chunjuan2, HUANG Yulong2   

  1. 1. Shandong Electric Power Engineering Consulting Institute Corp., Ltd., Jinan 250013, Shandong, China;
    2. School of Electrical Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2017-04-13 Online:2017-12-20 Published:2017-04-13

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Abstract: In order to solve the problem of storage capacity and charging & discharging control optimization in the wind-storage system, the power supply reliability and power fluctuation of system were studied. To prevent the overshoot discharge phenomenon of energy storage system, a consideration energy storage state of charge(SOC)optimization control strategy of charge and discharge was put forward. The fuzzy control method was adopted, according to the energy storage SOC, and the coefficient was introduced to adjust the charge and discharge power. Based on IEEE-RTS79 reliability test system, through the analysis of a real wind field data, the study verified that the strategy could effectively improve the power supply reliability and the power fluctuation of the system.

Key words: wind-storage system, reliability evaluation, SOC, charge and discharge optimization

CLC Number: 

  • TK89
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