主动配电网局部自治区域置信供蓄能力计算

Confidential power supply and storage capacity calculation of local autonomy area in an active distribution network

主动配电网局部自治区域供蓄能力是局部自治区域向外部提供和吸收功率的最大限额。置信供蓄能力作为供蓄能力的随机变量,对于配电网的运行状态有重要影响。本文提出一种计算主动配电网局部自治区域置信供蓄能力的算法。首先通过两点估计法表示出置信供蓄能力的概率密度函数,然后对主动配电网进行规划,在一定置信水平下,利用禁忌搜索-粒子群优化(TS-PSO)算法求出储能系统的额定功率和容量,得到置信供蓄能力的区间。最后通过算例分析,证明了所提算法的有效性。

Power supply and storage capacity is the maximum amount that local autonomous area supply and storage power to the outside in active distribution network. Confidential power supply and storage capacity is a random variable of power supply and storage capacity. The study of confidential supply and storage capacity has an important impact on the operation status of the distribution network.This paper proposes an algorithm for calculating the confidential power supply and storage capacity of local autonomous areas of active distribution networks. Firstly, the probability density function of the confidential power supply and storage capacity is expressed by the two-point estimation method, then the active distribution network is planned, and the rated power and capacity of the energy storage system are obtained by using the tabu search-particle swarm optimization(TS-PSO) algorithm to obtain the range of the confidential power supply and storage capacity at a certain confidence level. Finally, an example is given to illustrate the effectiveness of the proposed model.