CAJ | 학술논문

风电功率波动对电网造成不容忽视影响。用滑动平均法平滑风电功率，降低风电并网对电网的影响。滑动窗口的选取具有随机性，直接影响平滑效果。该研究提出滑动平均和标准校正的组合方法，分离出并网分量和储能分量。混合储能系统采用小波分解算法，可以有效地解耦出电池及超级电容器分量。对各储能分量统计分析，证明它们均服从t location-scale分布。在不同置信水平和容量下，以波动量的均值、方差、波动范围及波动点数为指标，分析混合储能系统的平抑效果。
풍전공솔파동대전망조성불용홀시영향。용활동평균법평활풍전공솔，강저풍전병망대전망적영향。활동창구적선취구유수궤성，직접영향평활효과。해연구제출활동평균화표준교정적조합방법，분리출병망분량화저능분량。혼합저능계통채용소파분해산법，가이유효지해우출전지급초급전용기분량。대각저능분량통계분석，증명타문균복종t location-scale분포。재불동치신수평화용량하，이파동량적균치、방차、파동범위급파동점수위지표，분석혼합저능계통적평억효과。
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.