分析了电力市场中交易盈余产生的两个原因——输电阻塞和损耗 ,指出交易盈余是电力市场采用节点实时电价的固有现象。说明了阻塞费用、损耗费用和交易盈余的含义并通过简单实例进行计算 ,讨论了它们与用户多交电费的关系。提出了交易盈余的消除办法——由阻塞引起的交易盈余补偿给受损失的电厂和用户 ;由损耗引起的交易盈余补偿给受电端用户。 Two reasons for the trading surplus in the power market are analyzed—transmission congestion and loss. It is pointed out that trading surplus is an inherent phenomenon in the electricity market using real-time price of nodes. Explained the meaning of congestion costs, loss costs, and trading surplus and calculated them through simple examples, and discussed the relationship between them and users’ multiple payment of electricity charges. A method to eliminate trade surpluses was proposed—compensation of trade surpluses caused by congestion to compensated power plants and users; trade surplus caused by losses was compensated to power-receiving users.