摘要
随机生产模拟是水火发电系统可靠性评估的重要方法。在考虑水火电机组检修计划对发电系统可靠性评估影响的前提下,提出根据机组检修状态对研究期进行分段的分时段协调随机生产模拟方法。该方法通过对各时段进行协调以确定水电机组的工作容量,进而对水火电机组在各时段独立进行随机生产模拟。利用全容量机组模拟顺序不影响剩余持续负荷曲线以及可靠性指标的特性,优先模拟火电机组,然后模拟水电机组,避免了对水电厂经济带负荷位置的试探,大大提高了水火发电系统可靠性评估的计算速度。小系统测试算例及某实际省级电网的测试结果验证了所提方法的正确性及计算速度。
Stochastic production simulation is an important method for reliability evaluation for the hydro-thermal generation system. On the premise of considering impact of maintenance schedule for hydro-thermal generator on reliability evaluation for the generation system, this paper presents an interval-coordinated stochastic production simulation method for dividing the study period into intervals according to maintenance state of the generator. By coordinating different time periods, this method can determine working capacity of the hydro-thermal generator and then make stochastic production simulation on the generator in each time period independently. Since simulation order of the full-capacity generator has no influence on the residual load duration curve and reliability index, this paper preferentially simulates the thermal generator and then the hydro generator, which can avoid searching economy load position and greatly improve computation speed of reliability eval-uation. Testing results of one small system and an actual provincial power grid verify validity and computation speed of the proposed method.
作者
黄柳强
刘俊宏
吴茵
杨小卫
郭瑞鹏
HUANG Liuqiang LIU Junhong WU Yin YANG Xiaowei GUO Ruipeng(Electric Power Dispatching and Control Center of Guangxi Power Grid Co. , Ltd. , Nanning, Guangxi 530023, China College of Electrical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China)
出处
《广东电力》
2017年第5期63-68,共6页
Guangdong Electric Power
关键词
水火发电系统
检修计划
可靠性评估
随机生产模拟
持续负荷曲线
hydro-thermal generation system
maintenance schedule
reliability evaluation
stochastic production simulation
load duration curve
作者简介
黄柳强（1984）,男,广西崇左人.工程师,工学博士,从事电力系统运行策划工作.
刘俊宏（1993）,男,山西晋中人.在读硕士研究生,研究方向为电力系统规划.
吴菌（1979）,女,广西南宁人.高级工程师,工学硕士,从事电网运行策划管理工作.
