CAJ | 학술논문

针对目前大规模输电网规划求解中难以快速地求得全局最优解的问题，给出了基于线路的建设费用、网络损耗费用、输电线路走廊的建设费用、各支路总的过负荷惩罚费用和N-1约束的过负荷惩罚费用为目标函数的输电网规划模型。分析了和声搜索算法随着输电网规模的扩大、优化问题维数的增加，算法求解精度和收敛速率明显降低且易陷入局部寻优的现象及其原因的基础上，设计了一种混沌自适应分组和声搜索算法。该算法通过维数分组、变异和混沌扰动来提升算法的搜索能力，使其能够快速地求解大规模的输电网规划问题。通过对IEEE18节点和巴西南部46节点系统的计算，证明了算法及模型应用于输电网规划的可行性，为实际工程应用打下了基础。
침대목전대규모수전망규화구해중난이쾌속지구득전국최우해적문제，급출료기우선로적건설비용、망락손모비용、수전선로주랑적건설비용、각지로총적과부하징벌비용화N-1약속적과부하징벌비용위목표함수적수전망규화모형。분석료화성수색산법수착수전망규모적확대、우화문제유수적증가，산법구해정도화수렴속솔명현강저차역함입국부심우적현상급기원인적기출상，설계료일충혼돈자괄응분조화성수색산법。해산법통과유수분조、변이화혼돈우동래제승산법적수색능력，사기능구쾌속지구해대규모적수전망규화문제。통과대IEEE18절점화파서남부46절점계통적계산，증명료산법급모형응용우수전망규화적가행성，위실제공정응용타하료기출。
At present, it is difficult to obtain the global optimal solution fast in the large-scale transmission networks planning solving. For that, this paper proposes a model of transmission network planning which takes line investment costs, network loss cost, the over-load cost of normal operation, transmission corridor cost andN-1 overload penalty cost constraints as objectives. After the main disadvantages of being inclined to premature convergence, low accuracy and convergence rate in harmony algorithm are discussed, with the expansion of the transmission network and the increase in the dimension optimization problem, chaos adaptive grouping harmony search algorithm is proposed. Through group dimension, mutation and chaos disturbance to improve search ability of the algorithm, it can quickly solve large-scale transmission networks planning problems. Through the results of 18-node system and Southern Brasilian 46-bus system, it can not only prove the algorithm and model correctness and effectiveness in transmission network planning, but also can demonstrate that the algorithm has high computing speed and convergence, which provides the foundation for practical engineering applications.