摘要
针对电力市场环境下微电网内部多运营主体的电能交易问题,提出了一种基于"时前市场"的多轮成对随机匹配市场交易机制。介绍了基本交易原则,分析了卖方与买方类型,建立了随机匹配模型,利用"虚拟单元"的概念解决供需不平衡时的电能交易问题。基于各运营主体利益需求以及传输线功率约束建立了市场运营模型,分析了市场参数基本约束条件,求解得到买卖方期望交易价格和电量,以引导市场参与者竞价行为。通过预测误差补偿清算消除了预测误差对于市场运营的影响,完善了一个交易时间段内的电能交易流程。算例分析表明,上述交易机制简洁高效、易于执行,能实现电能资源的合理配置,适用于由分布式电源、电力用户和产销者组成的多主体微电网的电力交易。
Aiming at multi-operators energy trading issues inside microgrid in electricity market, this paper proposes a market trading mechanism of multi-rounds-in-pairs random matching based on ＂hour-ahead market＂. Basic trading principles are presented and identities of sellers and buyers are analyzed. Random matching model is established and ＂virtual unit＂ concept is applied to solve energy trading problems of supply-demand imbalance. Based on each operator＇s interest and transmission line power constraints, market operating model is established and basic constraints of market parameters are analyzed. Expected trading price and volume are solved to guide bidding behavior of all market participants. Impact caused by prediction error on market operation is eliminated by prediction error compensation and energy trading processes in a trading period are analyzed and completed. Case analysis shows that this trading mechanism is simple and efficient, easy to implement and can achieve optimal allocation of power resources. It is suitable for multi-operators＇ electricity trading of microgrid containing distributed energy resources, users and prosumers.
出处
《电网技术》
EI
CSCD
北大核心
2016年第2期587-594,共8页
Power System Technology
基金
国家863高技术基金项目(2014AA052001)
南方电网公司科技项目(K-KY2014-009)~~
关键词
微电网
电力市场
竞价交易
随机匹配
microgrid
electricity market
bidding trading
random matching
