中国电机工程学报2025，Vol.45Issue(7)：2472-2485,中插3,15.DOI:10.13334/j.0258-8013.pcsee.241755
适应高比例新能源的跨省中长期电量弹性交易机制与实践
An Elastic Mechanism and Its Practice for Inter-provincial Mid-and Long-term Electricity Transactions in the Context of High Renewable Energy Integration
摘要
Abstract
In the context of China's new power system construction,the traditional mid-and long-term transaction mode with fixed guaranteed-output requirements cannot accommodate transactions on renewable energy,which is characterized by significant variability and randomness.This incompatibility often results in reluctance in power delivery sales.To this end,this paper proposes a new power market mechanism for mid-and-long-term electricity transactions among provinces.It adheres to shared backup,shared peak load management,and shared risk at the receiving end.The aim is to facilitate large-scale renewable energy delivery and optimize resource allocation through additional measures.Based on the probability-output rate curve,an elastic transaction model considering both the potential undelivery of sellers and default of buyers is presented in this paper.Supportive models are established for determining floating-energy ceilings,market clearing,and deviation assessment.Simulation results demonstrate that this mechanism enables a stable export base through fixed electricity sales while enhancing market vitality through floating energy sales,leading to improved regional consumption of renewable energy in inter-provincial mid-and long-term electricity transactions.关键词
中长期电量交易/新型电力市场/新能源外送/概率-出力水平曲线/弹性交易模型Key words
mid-and-long-term electricity transaction/new power market/renewable energy transaction/probability-output rate curve/elastic transaction model分类
动力与电气工程引用本文复制引用
孙骁强,贺元康,丁涛,孙嘉玮,原博,黄雨涵..适应高比例新能源的跨省中长期电量弹性交易机制与实践[J].中国电机工程学报,2025,45(7):2472-2485,中插3,15.基金项目
国家电网有限公司西北分部科技项目(SGNW0000JYJS2310076).The Science and Technology Project of Northwest Branch of State Grid Corporation of China(SGNW0000JYJS2310076). （SGNW0000JYJS2310076）
