摘要
提出了一种考虑复杂故障模式的概率稳定性计算方法,并采用非序贯蒙特卡罗仿真实现之, 重点模拟了多种交直流稳定控制措施,完善了系统和节点的风险指标,并以修改后的EPRI-36系统为例进行了分析计算;将各种稳定控制措施、发电机模型、负荷模型和保护系统整定值对计算结果的影响进行了统计比较,验证了机组模型精度、保护动作时间和直流控制对系统稳定性的显著影响,证明了该文所提出的模型和算法是可行的、合理的。
In this paper, an effective algorithm for the probabilistic stability assessment of hybrid AC/DC power systems under the circumstance of multiple failure modes is proposed and implemented by the non-sequential Monte-Carlo simulation. The emergence control measures to AC/DC systems are simulated in detail and the risk indices for system and bus levels are improved. The effects of different emergence control measures, generator models, load models, delays of protection relay systems on the probabilistic stability indices is investigated statistically by the modified EPRI-36 bus system. It is demonstrated that the generator models, time setting of protections and DC control have major effects on the system stability and algorithms presented in this paper are feasible and reasonable.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第8期11-16,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(59977004)
安徽省自然科学基金项目(0010442)
教育部骨干教师基金项目。 ~~
关键词
交直流混合系统
概念
稳定性分析
电力系统
hybrid AC/DC systems
transient stability
probabilistic analysis
Monte-Carlo simulation
