一种基于挂牌的电力市场竞价模式与实践

An Electricity Market Bidding Model and Practice Based on Listing

针对目前电力市场价格信号不清晰、竞争不充分等问题,基于挂牌交易机制,提出了一种发用电侧双向挂牌的竞价模式。通过信息公示、电厂挂牌用户摘牌、用户挂牌电厂摘牌3个阶段,供需双方在价格接受范围内分别进行挂牌、摘牌,累计摘牌电量上限不受约束。通过优化两个交易阶段的成交顺序,将市场主体公示电量作为整个双向挂牌交易成交电量上限,并给出了交易组织流程图和市场出清计算方法。该竞价模式不仅能激励供需双方合理报价,还可实现交易量价的有机配合,降低了交易风险,扩大了成交电量,提高了资源优化配置的效率。云南电力市场的运营经验证实了该竞价模式的合理性、有效性和实用性。

In view of unclear price signal, lack of competition and other issues in electricity market, an independent listing bidding model is put forward based on listing trade mechanism. In this mechanism, both supply and demand sides list and delist in price range through three stages, including information publicity, power plant listing and users＇ delisting, and users＇ listing and power plant delisting. Then electricity prices are cleared according to the delisting price and cumulative upper limit of delisting power is not constrained. By optimizing transaction order in the two trading stages, public electricity of market participants are considered as bidding transaction volume limits. Transaction flow chart and market clearing calculation method are also given in the paper. Not only can the bidding model stimulate reasonable offer of both supply and demand sides, but also it can realize organic cooperation of trading price and amount, reduce trading risk, expand trading power and improve efficiency of resource allocation. Operational experience of Yunnan electricity power market confirms rationality, validity and practicability of the bidding model.