基于多参数规划理论的时间连续节点电价

Time-continuous locational marginal price based on multi-parametric programming theory

随着新能源渗透率的不断提高,电力市场需要细化定价颗粒度以反映时变的市场供需关系。基于多参数规划理论,提出时间连续节点电价的计算方法。以时间为规划参数构建经济调度模型,并基于多参数规划理论解析推导了节点电价与时间之间的解析表达式,可快速获得节点电价与时间的连续映射关系,为市场提供随时间连续变化的价格信号。基于IEEE30节点和IEEE118节点系统的仿真分析,验证了所提方法的价格信号合理性及计算效率优势。

With the increasing penetration of renewable energy,a pricing method with higher granularity is needed to reflect time-varying market supply and demand.Based on multi-parametric programming theory,this paper proposes a time-continuous locational marginal price(time-continuous LMP)calculating method.The proposed method builds the economic dispatching model with time as the planning parameter,and deduces the analytical expression between LMP and time based on multi-parametric programming theory.In this way the continuous mapping relationship between LMP and time can be obtained directly.This can provide the market with time-continuous price signals.Simulation results based on IEEE30-bus and IEEE118-bus systems demonstrate the reasonableness and effectiveness of the proposed method.