分布式光伏参与调频辅助服务交易机制研究

Study on Frequency Regulation Ancillary Service Trading Mechanisms for Distributed Photovoltaic Generation

针对分布式光伏大规模发展导致电网调频需求和压力日益增大的问题,提出了分布式光伏参与调频辅助服务的交易机制。首先,结合分布式光伏的特点,给出了其参与调频的准入条件。其次,增补了"两个细则"模式下分布式光伏参与调频的补偿机制,包括补偿方式、考核标准、结算分摊方法等。然后,提出了分布式光伏参与调频的市场机制,考虑了调频容量和调频里程2种交易标的,对其价格进行调整,引入了分布式光伏可信度指标,给出了调频市场的交易流程与出清模型,采取了考虑机会成本的容量补偿和考虑调频性能指标的里程补偿的两部制补偿机制,并由用户侧分摊调频费用。最后,算例验证了所提调频辅助服务交易机制的有效性。

This paper addresses the problem of increased frequency regulation demand and pressure caused by the rapid development of distributed photovoltaic(DPV)systems by proposing frequency regulation ancillary service(FRAS)trading mechanisms.First,combined with the characteristics of DPV,the access conditions for DPV to participate in frequency regulation are provided.Then,an FRAS compensation mechanism for DPV under the"two rules"mode is added,including compensation methods,assessment criteria,settlement,and allocation methods.Next,an FRAS market mechanism for DPV is proposed,frequency regulation capacity and frequency regulation mileage are considered,and capacity prices and mileage prices are adjusted.A DPV credibility index is introduced,and the trading process and clearing model of the FRAS market are described.A two-part compensation mechanism is adopted,which considers capacity compensation with opportunity cost and mileage compensation with a frequency regulation performance index.The cost of frequency regulation is shared by users.Finally,the simulation results show that the effectiveness of the proposed FRAS trading mechanisms.