中国电力市场在大规模可再生能源并网中面临的主要问题

大规模的可再生能源发电,如风电和太阳能发电,与传统的化石燃料发电、核电和水电相比,给电力系统运行带来了更多的变动性和不确定性。可再生能源发电的成功并网需要对传统的电力市场结构以及相应的输电规划和市场运营方式按不同可再生能源的特点和要求重新审视。对支持电力市场发展所需的基本的输电规划结构进行了分析,也对随着日益增加的可再生能源发电并网,确保电力系统可靠运行的关键问题,如电力市场管理区域范围、备用要求、机组协议以及经济的调度方式,进行了分析和阐述。

Key Issues for Development of China's Power Market Considering Large-Scale Renewables Integration

A large proportion of variable generation like wind and solar energy introduces a higher level of variability and uncertainty into power system operation than the traditional fossil, nuclear and hydro generation. Successful integration of these new energy resources requires that traditional market structures and associated transmission planning and market operation practices be re-examined in light of the different characteristics and requirements of these new energy sources. This article examines the underlying transmission planning structure needed to support the power market evolution, and a number of critical developments within the power market with respect to control area size, reserve requirements, unit commitment and economic dispatch practices, needed to enable reliable system operation with increasing penetration of variable generation.