Capacity configuration of the hybrid energy storage system for wind power smoothing

作者：MA Su liang; JIANG Xiao ping; MA Hui meng; WU Zhen wei

来源：电力系统保护与控制, 2014, (8).

• wind power variation
• capacity configuration of hybrid energy storage systems
• moving average correction method
• wavelet analysis
• t location-scale distribution

It can not be ignored that active power fluctuations in wind power's influence on the grid. Smoothing active power of wind power by moving-average method can diminish the fluctuation quantity of the grid-connected wind power. Sliding window that is random directly affects the smoothing result. This paper comes up with moving-average and standard calibration combinatorial method to separate grid-connected component and hybrid energy storage component from wind power. It decouples battery component and super-capacitor component by the wavelet analysis theory. It researches the probability distributions of battery component and super-capacitor component by the means of mathematic statistics and verifies that they follow t location-scale distribution. At the different confidences and capacities, this paper calculates the means, the variances, the range of fluctuation and the points of fluctuation of active power fluctuations in wind power to estimate different smoothing effects of hybrid energy storage systems.

• 单位
  北京; 中国矿业大学; 中国矿业大学（北京）