摘要
已有的电力系统故障分析方案无法适用于所有的故障场景，对此提出一种电力系统多线并发的非对称故障分析方案。首先，通过电流图计算故障前条件，更新电力系统并创建新节点来仿真不同类型的故障；然后，引入RLC组件代表不同的故障类型，并计算右手定则向量与雅可比矩阵；最终，通过计算系统指标的增量进行电力系统的状态分析。基于IEEE的测试平台对该方案进行验证实验。结果证实，该方案可分析电力系统不同类型的故障以及并发的故障。
The existing fault analysis schemas of electrical systems are not suitable for all kinds of faults, an unbalanced simultaneous fault analysis schema of multi-conductor electrical systems is proposed to resolve that problem. Firstly, the pre-fault conditions are calculated through a power flow program, the electrical system is updated and new nodes are created to simulate different types of faults; then, RLC elements are inserted to represent the various types of faults, the right-hand vector and Jacobian matrix are computed; lastly, the electrical system is analyzed through computing the increment value of system measurements. IEEE test platform is used for validation experiment of the proposed schema, the results show that the proposed schema is suitable for different types of fault analysis and simultaneous fault analysis.
出处
《控制工程》
CSCD
北大核心
2018年第3期417-422,共6页
Control Engineering of China
关键词
电力系统
故障分析
并发故障
右手定则
雅克比矩阵
智能电网
Electric system
fault analysis
simultaneous fault
right-hand rule
Jacobian matrix
smart grid
