有效协调小容量分布式发电(distributed generation,DG)和集中式可再生能源发电(collected renewable generation,CRG)是中国未来智能电网发展的重要特征。分散储能系统(distributed energy storage system,DESS)和集中储能系统(mass energy storage system,MESS)将在大容量CRG和小容量DG的安全、稳定接入大电网中发挥重大作用。文中在对智能电网兼容性问题进行深入分析的基础上,探讨了考虑电网供蓄特性的协同调度,提出了涵盖输配电网CRG-MESS供蓄配置以及微网DG-DESS供蓄配置的智能电网兼容性解决方案。
Abstract
Effective coordination between collected and distributed renewable generation is one of the most important features for future smart grid in China. The distributed energy storage system(DESS) and mass energy storage system(MESS) will play significant roles in safely and stably connecting the enormous collected renewable generation(CDG) and distributed generation(DG) with the power grid. Based on a thorough analysis on the challenging problems for smart grid's compatibility, the coordinated dispatching is discussed taking into account the supply and storage property of the power grid. The CRG-MESS configuration for transmission and distribution power grid and the DG-DESS configuration for microgrid are proposed as a scheme for solving the compatibility of the future smart grid.