摘要
研究大规模风电接入系统所需的最小旋转备用和储能功率(容量)对指导电力系统的优化运行与调度具有重要意义。基于此,该文考虑风功率及负荷的双随机特性,建立含机会约束的最小储能功率优化配置模型。基于随机规划的p-有效点(p-efficient)理论,推导了将机会约束转换到确定性约束的数学过程,获得一种将不确定规划转化为确定性规划的解析方法,得到系统的旋转备用系数,解算出系统所需储能最小调节功率。将所提模型及方法应用于风火储联合系统的运行模拟,设置极限的场景对所提方法进行验证,结果表明配置的储能功率可以应对净负荷的预测偏差,为大规模风电并网系统优化运行、最大限度地接纳风电提供理论参考依据。
The research on allocation of minimum spinning reserve and energy storage power (capacity) for the wind power system in large scale has a great significance in dispatching management and optimal running for power system. On the basis of the significance, this paper establishes a stochastic optimization model for allocation the minimum energy storage power under chance constraints, considering the double stochastic characteristics of the wind power and the load capacity. Based on stochastic programming of p-efficient theory, the conversion process from probability constraint to deterministic constrains has been derived mathematically in order to acquire an analysis method to transform the uncertain programming to a certain way, further more could get the spinning reserve of the system and the minimum power required by the energy storage system. Applying the model and method to the wind-thermal-storage system, the results of limited scenes show that the power of the allocated energy storage system could cope with predicted error. The result could offer a theoretical reference for the optimizing operation and maximum wind of power system incorporating large-scale wind farm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第13期45-52,共8页
Proceedings of the CSEE
基金
国家863高技术基金项目(2011AA05A112)
国家自然科学基金项目(50907012
51277034)
中国博士后基金项目(2012M511209)~~
关键词
风电
并网
p-有效点理论
储能功率配置
旋转备用
机会约束
随机规划
wind power
grid connection
p-efficienttheory
storage power allocation
spinning reserve
chanceconstraint
stochastic programming
作者简介
黎静华(1982),女,副教授,在站博士后,硕士生导师,研究方向为人工智能在电力系统中的应用、电力系统优化运行与控制等,happyjinghua@163.com;
文劲宇(1970),男,教授,博士生导师,主要研究方向为电力系统运行与控制、电能存储与电力安全、大规模风电并网等;
程时杰(1945),男,教授,博士生导师,中国科学院院士,IEEEFELLOW,主要从事电力系统的稳定分析与控制、超导和FACTS技术在电力系统中的应用、人工智能及其在电力系统中的应用等方面的研究;
韦化(1954),男,教授,博士生导师,研究方向为现代内点最优理论及其在电力系统中的应用等。