电能替代下考虑需求响应的综合园区风光储配置方法

doi:10.12204/j.issn.1000-7229.2021.10.002

摘要/Abstract

摘要：

推进园区电能替代是改善环境问题的重要措施,针对综合园区能源系统进行电能替代受配电网络改造限制的情况,提出采用风光储系统作为供电系统的方案。首先构建综合园区能源系统中电替热、电替冷和电替油负荷模型。然后提出考虑配电网运行状态和需求响应的风光储最优容量双层配置模型,该模型包括配电网层和风光储系统层。最后采用Cplex进行求解,得到综合园区电能替代下考虑配电网运行状态和需求响应的风光储系统最优配置方案。通过IEEE 33节点系统以及某实际园区的电能替代负荷数据进行仿真计算,结果表明采用风光储系统供电并计及负荷的需求响应能解决园区电能替代负荷增长的需求并兼顾其最优经济配置。

关键词: 电能替代, 风光储系统, 经济成本, 环境效益, 容量配置, 需求响应

Abstract:

Promoting the electric energy substitution of integrated park is an important measure to improve environmental problems. The electric energy substitution of integrated park is affected by distribution network transformation. The program of electric energy substitution to configure wind-solar-battery system is proposed. Firstly, the load characteristic model under electric energy substitution is established which involves the load models of electricity replacing heat, cooling and fuel oil. Secondly, the bi-level optimal model for wind-solar-battery capacity allocation is proposed considering the reliability of distribution network and the demand response, which is concluded distribution network layer and wind-solar-battery system layer. Finally, Cplex is used to solve the problem, and it is obtained the optimal planning scheme of the wing-solar-battery system considering the reliability of distribution network and the demand response in the electric energy substitution of the integrated park. In the system of IEEE 33-node system, the electric energy substitution load data of an actual park is used to perform simulation. The results show that the use of wind-solar-battery system for power supply and the consideration of load demand response can solve the demand for electric energy substitution load growth in the park and realize the wind-solar-battery system's optimal economic configuration.

Key words: electric energy substitution, wind-solar-battery system, economic cost, environmental benefits, energy storage configuration, demand response

中图分类号:

TM715

杨颖, 刘友波, 黄媛, 刘俊勇, 王潇笛. 电能替代下考虑需求响应的综合园区风光储配置方法[J]. 电力建设, 2021, 42(10): 9-18.

YANG Ying, LIU Youbo, HUANG Yuan, LIU Junyong, WANG Xiaodi. Allocation of Wind-Solar-Battery Under Electric Energy Substitution in Integrated Park Considering Demand Response[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(10): 9-18.

图/表 13

图1 综合园区能源系统架构

Fig.1 Energy system structure of an integrated park

图2 综合园区能源系统的双层配置模型

Fig.2 Bilevel model under energy system in integrated park

图3 双层模型求解流程

Fig.3 Solving flowchart of the bi-level model

图4 修改的IEEE 33节点配电网

Fig.4 Modified 33-node distribution network

图5 电能替代负荷特性

Fig.5 Load of electric energy substitution

表1 基础参数

Table 1 The basic parameters

表2 分时电价信息

Table 2 Table of time-of-use price

图6 需求响应前后负荷曲线

Fig.6 Daily load curve before and after DR

表3 需求响应前后负荷特征

Table 3 Load characters before and after DR

表4 风光储系统配置结果

Table 4 Configuration result of the wind-solar-battery system

图7 不同场景下系统的实时运行功率

Fig.7 Real-time operating power of system in different scenarios

表5 风光储设备利用率及日投资成本

Table 4 Utilization rate of wind energy storage equipment and daily investment cost

表6 配电网扩建日平均成本和峰值负荷

Table 6 Daily cost of the distribution network expansion and peak load

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