针对新能源波动性和绿电用户随机性带来的交易匹配协同问题,提出适应虚拟电厂聚合灵活资源参与的调峰辅助市场机制及其商业运营模型,实现需求侧灵活、清洁资源优先辅助电力系统安全稳定运行。该机制设计中,将电力系统调峰市场按照传统调峰机组和第三方调峰市场主体划分为两个调峰子市场,在后者中允许虚拟电厂聚合商报量报价,引入绿色用能指数和响应成本系数,根据虚拟电厂代理资源的历史用能情况和资源核定成本修正其申报信息,得到反映绿色用能价值和资源响应成本的第三方市场主体出清序列,并根据提出的传统调峰机组与第三方市场主体的联合出清市场机制,将传统调峰市场的市场出清价格向第三方主体市场传导作为价格指导信号,形成虚拟电厂调峰子市场出清结果,因而构建第三方市场主体与传统调峰机组的市场化竞争,实现资源优化配置。此外,基于电动汽车资源设计了虚拟电厂代理参与调峰市场的多种商业运营模型,提高了需求侧资源的积极性。最后,通过算例说明提出的虚拟电厂辅助调峰市场机制降低了系统调峰成本、增加了新能源消纳、实现了绿色价值认证,验证了所设计的商业模型符合激励相容原理,提升了用户参与意愿、有效响应了新能源波动。
Abstract
Aiming at the problem of trading matching coordination caused by the volatility of renewable energy and the randomness of green energy users, a set of ramping energy market mechanism and its business model are proposed adapted to the participation of virtual power plants with aggregated flexible resources, in which the clean and flexible resources are allowed to be given priority to assist the safe and stable operation of power system. In the proposed mechanism, the ramping energy market is divided into two submarkets: conventional ramping units and third-party ramping units. In the latter, the virtual power plant operators are allowed to declare the quantity and price. Meanwhile, a priority clearing mechanism in accordance with the green energy consumption index and the response cost coefficient is proposed as well. The declared information is corrected according to the historical energy use of the virtual power plant’s proxy resources and the approval response cost, and the clearing sequence of the third-party market reflecting the green energy value and the resource response cost is obtained. Besides that, according to the proposed joint clearing mechanism of the traditional ramping units and the third-party market players, the clearing price of the traditional ramping energy market is transmitted to the third-party market as a price signal, and then clearing result is issued. By this, the competitive ecosystem for all of the ramping market units is constructed, thereby the better resources allocation is achieved. In addition, a variety of commercial operation models for virtual power plant oriented EVs to participate in the ramping energy market are designed, which improves the enthusiasm of demand-side resources. Finally, the given example verifies that the proposed mechanism reduces the system ancillary service cost, increases renewable energy consumption and achieves the green value certification, as well as meets the requirement of incentive compatibility, responds to fluctuation of renewable energy output and motivates the user’s willingness.
关键词
能源互联网 /
新能源消纳 /
虚拟电厂 /
辅助调峰 /
绿色电力
Key words
energy internet /
renewable energy consumption /
virtual power plant /
ramping energy service /
green energy
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基金
国家重点研发计划（2020YFF0305800）; 国家电网科技项目（520201210025）
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