摘要
指出了不平衡潮流解中的一个新问题:三相不平衡电力系统的中性点存在2个电压解,对特定的不平衡参数存在一对解,其中有些是实数,有些是共轭复数。该现象不同于传统单相平衡潮流解中的双解现象,而是与系统或负荷不平衡的程度有关,如果不平衡度减小为零,则2个解重合为1个解。文中介绍了对此问题的研究与分析,并用一个实际测试系统说明了此现象的实际意义。
This paper presents a new phenomenon found for unbalanced power flow solutions： the existence of two voltage solutions at the neutral points of unbalanced three-phase circuits. The phenomenon is different from that found in traditional single-phase balanced power flow solutions. It is dependent on the degree ofunbalance is reduced to zerosystem or load unbalance. If the the two solutions will merge into one. This paper presents our observations and analysis on the problem. A test system is used to illustrate the practical significance of the phenomenon. We hope this work will stimulate further research on this challenging and interesting problem.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第15期62-66,共5页
Proceedings of the CSEE
关键词
电力系统
双解
电能质量
不平衡潮流
Power system
Dual solutions
Power quality
Unbalanced power flow
