高比例可再生能源渗透下的电力市场价值分配机制设计

Benefit Allocation Mechanism Design of Electricity Markets with Penetration of High Proportion of Renewable Energy

大力发展可再生能源、构建清洁高效的能源体系已成为贯彻落实能源革命的必然选择。在电力市场环境下,随着可再生能源渗透率的持续提升,传统火电份额被不断占据。由于尚未建立合理的市场机制保障火电提供容量的基本收益,火电企业缺乏为高比例可再生能源提供辅助服务的动力。市场价值分配的核心思想在于按照“谁创造的价值谁分享,谁产生的成本谁承担”来量化市场成员的贡献和价值,并分配利益。为此,提出一种高比例可再生能源渗透下的电力市场价值分配机制。基于Vickrey-Clarke-Groves(VCG)机制,定义一台火电机组的价值为该机组对其他发电资源的替代效益,精准辨识火电为可再生能源并网消纳付出的真实成本,从而激励火电机组真实报价,主动预留辅助容量,形成高比例可再生能源电力市场互利共济的格局。

Vigorously developing renewable energy and building a clean and efficient energy system have become inevitable choices for implementing the energy revolution.In the electricity market environment,as the penetration of renewable energy keeps increasing,the share of traditional thermal power is constantly occupied.Since a reasonable market mechanism has not been established to guarantee the basic benefits of thermal power supply capacity,thermal power enterprises lack the incentive to provide auxiliary services for high proportion of renewable energy.The core idea of market value distribution lies in quantifying the contribution and value of market members and distributing benefits according to“Who creates the value who shares,who produces the cost who bears”.Therefore,a benefit allocation mechanism of electricity markets with penetration of high proportion of renewable energy is proposed.Based on the Vickrey-Clarke-Groves(VCG)mechanism,the value of a thermal power unit is defined as the substitution benefit of the unit to other power generation resources,and the true cost of thermal power for renewable energy grid-connected accommodation is accurately identified,thereby stimulating thermal power units to make truthful bids and actively reserve auxiliary capacity,forming a pattern of mutual benefit for electricity markets with high proportion of renewable energy.