对称因子表的快速形成及直角坐标和极坐标PQ分解法的比较  

Fast forming for symmetrical factor tables and comparison for PQ decoupled algorithms in rectangular and polar coordinates

作　　者：陈恳[1] 丁戈 唐婧璇 万新儒 CHEN Ken;DING Ge;TANG Jingxuan;WANG Xinru(Information Engineering School,Nanchang University,Nanchang 330031,China;Jiangxi Vocational and Technical College of Electricity,Nanchang 330032,China;State Grid Suining County Electric Power Supply Company,Suining 221200,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]江西电力职业技术学院,江西南昌330032 [3]国网睢宁县供电公司,江苏徐州221200

出　　处：《南昌大学学报（理科版）》2021年第2期129-134,共6页Journal of Nanchang University(Natural Science)

基　　金：江西省教育厅科学技术研究重点项目(60009);江西省研究生创新专项资金项目(YC2017-S110)。

摘　　要：针对现有文献对潮流计算中直角坐标PQ分解法及其优势鲜有提及和传统因子表法求解系数矩阵速度较慢的问题,本文提出直角坐标PQ分解潮流计算方法和对称因子表,与常用的极坐标PQ分解法相比,尽管其求解的方程数和迭代次数更多,但由于采用特殊解法,且没有三角函数的计算,因此其潮流计算速度仍然大大加快。对IEEE-30~-118节点系统编程计算表明,对称因子表比传统因子表快约20%~35%,直角坐标PQ分解法的潮流计算速度比极坐标PQ分解法快约35%~65%,且其优势随着系统规模的增加而增加。Considering the fact that the PQ decomposition method in rectangular coordinates is not well explored and its advantages are not fully discovered in existing literatureand taking into account that the traditional factor table method is not fast,this paper presents a PQ decoupled algorithm in rectangular coordinate and provides a symmetric factor table.Compared with the conventional PQ decoupled algorithm in polar coordinate,although more equations should be solved and more number of iterations are required,the power flow calculating speed is still greatly accelerated due to the special solution method and the absence of trigonometric functions.The programming calculation for IEEE 30-118 node systems shows that the symmetric factor table is about 20%-35%faster than the traditional factor table,and the power flow calculating speed of the PQ decoupled algorithmin rectangular coordinate is about 35%-65%faster than the PQ decoupled algorithm in polar coordinate,withthe advantages being increased with the increase of system size.

关 键 词：因子表法 潮流计算 极坐标PQ分解法 直角坐标PQ分解法 电力系统 

分 类 号：TM744[电气工程—电力系统及自动化]