计及网络约束的发用电一体化综合优化调度模型

Comprehensive Optimal Scheduling Model for Integration of Power Generation and Consumption Considering Network Constraints

电力高峰负荷持续增长及间歇式能源的迅猛发展提高了输电阻塞的风险,对电力系统调度调节能力提出新的重大挑战。传统电网中主要通过动态增容、负荷转供及有序用电来解决网络阻塞问题。智能电网环境下,随着"源—网—荷"互动能力的提升,柔性负荷参与电网调度在解决网络阻塞问题方面发挥着十分经济高效的作用。基于柔性负荷参与地区电网需求响应调度,以"源—网—荷"三方综合效益最大为目标,构建了计及网络约束的发用电一体化综合调度模型,通过形成最优电价和激励调度方案,实现了对发用电侧的协同一体化综合调度,在有效缓解网络阻塞问题的基础上,实现了满意度和互动成本的最优。采用IEEE 14节点算例验证了优化调度模型的经济性和有效性。

Integration of flexible and controllable load resources into power system scheduling and operation will increase the risk of grid congestion,and pose new challenges to power system dispatching regulation ability.The traditional power grid eliminates congestion mainly through capacity-increase,load transfer and orderly power utilization.With the upgrading of the interactive capabilities of ＂source-grid-load＂,flexible loads participating in grid scheduling plays a very cost-effective role in solving grid congestion problems.Based on flexible loads involved in demand response scheduling,a comprehensive optimal scheduling model for integration of power generation and consumption considering network constraints is developed to make comprehensive benefits of interaction maximum.By forming the optimal pricing and incentive scheme,the model realizes coordinated scheduling of the integration of power generation and consumption.On the basis of effectively mitigating grid congestion,it has optimized the satisfaction and interaction costs.The optimization model is proved economical and effective with the example of an IEEE14-node system.