面向高比例新能源电网的重大耗能企业需求响应调度

Demand Response Scheduling of Major Energy-consuming Enterprises Based on a High Proportion of Renewable Energy Power Grid

随着国家“双碳”重大战略的提出,高比例新能源并网将成为我国电力能源转型的重要态势.针对火电机组、配电网和需求侧关联的系列运行约束制约了电网对高比例新能源的有效消纳这一问题,本文提出重大耗能企业这一主要电力负荷参与网需求响应(Demand response,DR)的研究思路,通过重大耗能企业与电网协调调度促进新能源消纳,并获得经济补偿以减少运行成本.研究首先基于混合需求侧响应机制,提出以重大耗能企业、新能源、火电机组为核心的协调调度方法,并根据新能源预测值−预测误差的信息依存顺序提出了两步调度策略.在此基础上,进行生产过程行为建模以实现重大耗能企业需求侧响应决策描述,并建立高比例新能源并网的重大耗能企业需求响应与电网协调调度优化模型.最后,基于烟台电网实际系统进行算例分析,验证了重大耗能企业通过需求响应参与电网协调调度以及两步调度策略的有效性.

With the proposal of the national“double carbon”major strategy,the high proportion of renewable energy grid-connection becomes an important trend of China's power energy transformation.However,a number of operational constraints related to thermal power units,distribution networks and demand sides limit the efficient absorption of renewable energy.This paper considers the idea in which major energy-consuming enterprises,the main power load,participate in the grid demand response(DR),promotes renewable energy consumption through coordinated scheduling between major energy-consuming enterprises and the power grid,and obtains economic compensation to reduce operating costs.Based on a hybrid demand-side response mechanism,this paper proposes a coordinated scheduling method with the major energy-consuming enterprises,renewable energy and thermal power units as the core.After that,a two-step scheduling strategy is proposed according to the information dependence order of the forecast value and forecast error of renewable energy.On this basis,the production process behavior modelling is carried out to realize the description of the demand response of major energy-consuming enterprises,and the optimization model of the demand response and grid coordination scheduling of major energy-consuming enterprises with a high proportion of renewable energy grid-connection is established.Finally,an example analysis is carried out based on the actual system power grid system in Yantai,which verifies the effectiveness of the major energy-consuming enterprises participating in the coordination scheduling of the power grid through demand response and the two-step dispatch strategy.