With the development of the power system,the way the system operates is becoming increasingly complex.In order to improve the safety level of power system operation,we proposed a calculation method of power limit of large power grid section based on dimensionality reduction particle swarm.Firstly,considering the static security and stabili-ty constraints and transient stability constraints of large power grids,we established a section power limit calculation model.Secondly,we proposed a dimensionality reduction particle swarm algorithm based on power sensitivity.We grouped the adjustable generator sets according to power sensitivity and aggregation coefficient,calculated the limit power,generator set power regulation amount and limit power constraints by using the dimensionality reduction particle swarm algorithm,and realized the fast optimization of the power limit of large power grid section.Finally,we verified the validity and correctness of the method in a 2128-node power grid in a region of China and a 12643-node network across a region of China.
关键词
复杂大电网/输电断面/灵敏度/自适应变异粒子群算法/极限功率
Key words
complex large power grid/transmission sections/sensitivity/adaptive mutation particle swarm optimiza-tion/limit power
维普
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