CAJ | 학술논문

研究风电场和风电场群的出力规律是分析并网风电对电力系统的影响以及寻找解决对策的基本前提.以分析风电出力波动性规律为基础,寻求风电场群相对于单个风电场出力的变化规律,研究了风电场群的空间规模效应,即平滑效应.给出平滑效应的定义、表现、产生机理,以及影响因素的量化分析方法.以一个实际区域内的4 个风电场组成的风电场群为算例研究对象,计算分析了风电出力的平滑效应,从相关分析的角度出发,指出了风电场出力之间的负相关性是形成平滑效应的内在原因.最后讨论了不同时间尺度下,平滑效应在系统有功平衡中的应用.
연구풍전장화풍전장군적출력규률시분석병망풍전대전력계통적영향이급심조해결대책적기본전제.이분석풍전출력파동성규률위기출,심구풍전장군상대우단개풍전장출력적변화규률,연구료풍전장군적공간규모효응,즉평활효응.급출평활효응적정의、표현、산생궤리,이급영향인소적양화분석방법.이일개실제구역내적4 개풍전장조성적풍전장군위산례연구대상,계산분석료풍전출력적평활효응,종상관분석적각도출발,지출료풍전장출력지간적부상관성시형성평활효응적내재원인.최후토론료불동시간척도하,평활효응재계통유공평형중적응용.
@@@@Wind power output characteristics study acts as the basic premise for analyzing its effects on the power system, as well as figuring out or corresponding solutions. Based on the analysis of wind power output fluctuations, this paper summarized the wind power variation discipline from a single wind farm to wind farm clusters, focusing on the space-scale effect of wind farm clusters, that is, the smoothing effect. Firstly, the definition, performance and mechanism of smoothing effect were discussed, and the method of quantitative analysis for influencing factors of smooth effect was proposed. Then, by taking wind farm clusters integrated with a practical regional grid as the case study, the indicator of wind farm clusters’ smoothing effect was calculated. The result shows that the negative correlation of wind farm outputs is essential reason of smoothing effect. Finally, the application of smooth effecting to active power balance in power system considering different time scales was discussed.