基于需求响应的风电消纳机会约束模型研究

规模风电的随机波动性给电网调度带来巨大困难,抑制风电出力的波动,使其较为平稳地接入系统具有现实意义.从需求响应的角度研究了风电消纳的问题.研究对象上,同时考虑价格型和激励型需求响应,计及了负荷的自弹性和互弹性系数,更加全面地反映了需求响应资源的特性;数学模型上,由于风电出力的随机性,采用了机会约束规划模型,使决策结果能...

Chance constrained model for wind power usage based on demand response

One of puzzles for large scale wind power usage is its stochastic fluctuations.There are realistic meanings to smooth wind power output fluctuations grid-connected for system operation.The paper proposes a new approach to improve wind power usage based on demand response(DR).To describe the DR characteristics,both price-based and incentive-based DR are employed here and both cross-elastic and self-elastic coefficients for price-based DR are considered.Furthermore,since wind power is stochastic,a chance constrained decision model is developed for wind power usage to meet the confidence coefficientrequired for system operation.Moreover,to solve the model,a particle swarm algorthm combined stochastic simulation method is introduced.Finally based on a practical system,a day-ahead real time price(RTP)and DR resource dispatch optimal solution is obtained and analysis verifies the effectiveness of the proposed method to improve wind power usage based on DR.