摘要
为平抑分布式电网可再生能源输出功率的波动,给出了一种混合储能系统功率配置滚动优化控制方法:利用储能电量守恒原理建立充-放电过程混合储能系统荷电量变化的连续时间数学模型;结合储能单元功率配置要求建立混合储能系统的约束模型和性能优化函数;采用滚动优化控制理论显式处理混合储能系统的荷电量模型、约束模型和性能优化函数,设计功率配置过程的滚动优化控制策略。通过算例仿真分析验证了该方法对可再生能源输出功率的平抑效果和满足储能系统约束的能力。
In order to smooth the fluctuations of renewable energy output power in a distributed generation system, the pa- per presents a method for receding horizon control of the power configuration of a hybrid energy storage system （HESS）. The method has the following steps：Use the principle of conservation of energy storage to establish a con- tinuous-time mathematic model to describe the charge changing of the HESS during charging and discharging;For- mulate the constraint models and performance optimization functions of the HESS based on the power configuration requirements of energy storage units ; Use the receding horizon control theory to explicitly tackle the charge models, constraint models and performance optimization functions of the HESS, and design the scheme for receding horizon control of the power configuration process. The proposed method＇ s effectiveness of smoothing the fluctuations of the output power from renewable energy sources and the ability to satisfy the energy storage system＇ s constraints were verified by the simulation analysis of a numerical example.
出处
《高技术通讯》
CAS
CSCD
北大核心
2014年第12期1279-1288,共10页
Chinese High Technology Letters
基金
国家自然科学基金(61374111)资助项目
关键词
分布式电网
混合储能系统
功率配置
滚动优化控制
distributed generation system, hybrid energy storage system, power configuration, receding horizon control
