Optimal control strategy for a wind power hybrid energy storage system considering output power amendment

The Journal of Engineering

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[1] Programming and Appraisal Center, State Grid Liaoning Economic Research Institute, Shenyang 110015, People's Republic of China;Quality Supervision Department, State Grid Materials Co. Ltd., Beijing 100120, People's Republic of China;School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, People's Republic of China;

关键词: optimal control;    energy storage;    supercapacitors;    wind power plants;    fuzzy control;    optimal control strategy;    wind power hybrid energy storage system;    output power amendment;    fluctuating wind power;    fluctuant wind power;    sub-high frequency;    high-frequency components;    wind power integration;    target value;    ultra-capacitor energy storage system;    double power amendment;    first-time power amendment;    control system design;   

DOI  :  10.1049/joe.2018.8562

来源: publisher

【 摘 要 】

Aiming at meeting the requirement of balancing the fluctuating wind power, this study proposed an optimal control strategy for wind power hybrid energy storage system considering output power amendment. Firstly, fluctuant wind power is decomposed into low-frequency, sub-high frequency and high-frequency components. Low-frequency part is used as the expected value of wind power integration. Sub-high frequency and high-frequency components are used as the target value of output power of storage batteries and ultra-capacitor energy storage system. Secondly, a double power amendment is proposed. In the first-time power amendment, the amendment coefficient is calculated by fuzzy controller whose inputs are the target value of power and state of charge (SOC) of the energy storage system. On the other hand, complement of batteries and super-capacitors are utilised in the second amendment. Through simulation analysis, it can be indicated that the configuration of the hybrid energy storage system and the control system design are feasible. This system can be widely used in wind farm, undertaking the task of balancing the fluctuating wind power.

【 授权许可】

CC BY