月度市场中发电厂交易电量校核方法  

Checking Method for Power Plant Trading Energy in Monthly Market

作　　者：周毓敏[1] 黄河[1] 李智勇[1] 郭少青 丁刚 

机构地区：[1]中国南方电网电力调度控制中心,广州510663 [2]北京清大科越股份有限公司,北京100084

出　　处：《南方电网技术》2017年第5期41-46,共6页Southern Power System Technology

摘　　要：当前月度电力市场中调度机构需要对发电厂的交易电量进行校核,以确保交易结果满足运行要求。为此提出了两阶段发电厂交易电量校核方法。第一阶段是月度电量分解,以月度机组组合为核心确定机组的开停计划,将月度电量分解到日。第二阶段是典型日运行模拟,以日经济调度为核心编制发电计划曲线,判断各电厂的分解电量能否满足网络安全约束。基于两层规划理论对上述两阶段问题反复迭代,可实现对该问题的求解。本方法不仅能够校核各电厂交易电量是否满足运行要求,而且能够用于分析某个电厂最大交易电量。最后通过IEEE-30节点系统构造算例,验证了所提方法的有效性。Nowadays power dispatching center needs to check the trading energy of power plant in monthly market to ensure that the trading energy meets the operation requirements of the actual situation. To solve this problem, a two-stage checking method is pro- posed in this paper. The first stage is monthly power distribution based on a monthly unit commitment model to confirm the schedule plan for the unit and distribute the monthly power into each day. The second stage is typical day operation simulation based on a daily economic dispatch model to check whether the generation curve of each plant can meet the requirements of power grid security. Based on two-layers optimization theory, the two-stage problem mentioned is iterated repeatedly and solved. This method can check whether the trading result meets the operation requirements and provide a useful method about the maximum trading power of a certain power plant. The validity of the proposed method is verified by a case study in IEEE 30 buses system.

关 键 词：月度电力市场 安全校核 月度电量分解 经济调度 

分 类 号：TM743[电气工程—电力系统及自动化]