基于混沌内点法的可用输电能力计算  

Calculation of Available Transfer Capability Based on Chaos-Interior Point Algorithm

作　　者：何鑫[1] 李国庆[1] 

机构地区：[1]东北电力大学电气工程学院,吉林省吉林市132012

出　　处：《电网技术》2011年第11期130-135,共6页Power System Technology

摘　　要：针对目前电力系统可用输电能力计算收敛速度慢、易早熟的问题,提出了一种将混沌优化与跟踪中心轨迹内点法相结合的混合求解算法。该算法利用混沌优化所具有的遍历性、随机性和规律性等特点跳出局部最优点,接近全局最优点;同时,利用跟踪中心轨迹内点法在最优点的邻域内局部寻优,从而达到全局寻优与局部寻优相结合。利用IEEE 30节点测试系统对可用输电能力进行仿真计算,并把仿真结果与其他方法进行对比分析,表明混沌内点算法具有较快的收敛速度和较高的求解精度。In existing methods to calculate the available transfer capability （ATC） of power system there are defects of slow convergence and apt to be premature. To remedy these defects, a hybrid algorithm combining the chaotic optimization algorithm with interior point algorithm tracing the center track is proposed. Using the features of ergodicity, randomness and regularity of chaotic optimization, the proposed algorithm can escape from local optimization point and close to global optimization point; meanwhile, using the interior point algorithm tracing the center track the local search can be performed within the neighborhood of optimization point to achieve the combination of global search with local search. The ATC calculation by the proposed algorithm is simulated by IEEE 30-bus test system, and comparison of simulation results with those by other methods shows that the proposed chaos-interior point algorithm converges fast and its solution possesses high accuracy.

关 键 词：可用输电能力 混沌优化算法 内点法 最大输电能力 输电可靠性裕度 

分 类 号：TM744[电气工程—电力系统及自动化]