考虑高压配电网转供能力的储能电站双层规划模型

doi:10.12204/j.issn.1000-7229.2021.01.010

电力建设 ›› 2021, Vol. 42 ›› Issue (1): 85-95.doi: 10.12204/j.issn.1000-7229.2021.01.010

考虑高压配电网转供能力的储能电站双层规划模型

陈刚¹, 黄杨², 丁理杰¹, 柳维衡², 魏巍¹, 曾宇³, 刘友波³

1.国网四川省电力公司电力科学研究院, 成都市 610041
2.国网成都供电公司,成都市 610041
3.四川大学电气工程学院,成都市 610065

收稿日期:2020-04-17 出版日期:2021-01-01 发布日期:2021-01-07
通讯作者: 曾宇
作者简介:陈刚(1985),男,博士,高级工程师,研究方向为电力系统稳定性分析;|黄杨(1986),男,博士,高级工程师,研究方向为电力系统调度;|丁理杰(1981),男,博士,教授级高级工程师,研究方向为电力系统分析;|柳维衡(1984),男,硕士,高级工程师,研究方向为电力系统运行与调度;|魏巍(1984),男,博士,高级工程师,研究方向为电力系统稳定性分析;|刘友波(1983),男,副教授,博士生导师,研究方向为电力系统机器学习算法、主动配电网规划与运行、大规模储能应用。
基金资助:
四川省电力公司科技项目资助(52199718001J)

Bi-level Programming Model of Energy Storage Power Station Considering Transfer Capability of High Voltage Distribution Network

CHEN Gang¹, HUANG Yang², DING Lijie¹, LIU Weiheng², WEI Wei¹, ZENG Yu³, LIU Youbo³

1. State Grid Sichuan Electric Power Research Institute, Chengdu 610041, China
2. State Grid Chengdu Power Supply Company, Chengdu 610041 China
3. College of Electrical Engineering, Sichuan University, Chengdu 610065, China

Received:2020-04-17 Online:2021-01-01 Published:2021-01-07
Contact: ZENG Yu
Supported by:
Science and Technology Project of Sichuan Electric Power Company(52199718001J)

摘要/Abstract

摘要：

城市化进程的加快使得当前城市电网面临日益严重的运行阻塞问题,传统利用负荷转供进行阻塞管控的调节方式灵活性较差,单一管控方式不具适应性。文章利用储能可平移负荷时空分布的特点,并考虑运行策略对规划方案的影响,提出计及高压配电网(high voltage distribution network, HVDN)转供能力的储能电站双层规划模型。上层构建储能投资收益的规划模型,下层构建多场景下以拓扑重构为主、储能充放为辅的运行优化模型,由于运行控制和规划配置间相互影响,将不同时间尺度的内外层优化置于同一框架内,以系统节点切负荷量、储能电站配置位置、容量及功率为耦合变量交替迭代,采用粒子群算法及CPLEX求解器进行迭代求解。最后以某城市电网局部系统为例,验证所提模型的有效性和求解方法的可行性。

关键词: 高压配电网(HVDN), 储能电站, 双层规划, 变电单元, 负荷转供

Abstract:

With the acceleration of urbanization, the current urban power grid is faced with increasingly serious problem of operation block. The traditional control mode using load transfer for blocking control is less flexible, and the single control mode is not adaptive. According to characteristics of space-time distribution of transferrable load by energy storage, and considering the influence of operation strategy on the planning scheme, a two-layer planning model of energy-storage power station is proposed, which takes into account the transmission capacity of high-voltage distribution network (HVDN). The upper layer builds energy-storage planning model of investment income, and the lower layer builds more scenarios by giving priority to topology reconstruction, while energy-storage operation optimization model as complementary. Due to the mutual influence between operation control and planning configuration, the inner and outer layers of different time scales are optimized in the same frame. The cutting loads of the system nodes, the location, capacity and power of the energy-storage power station are used as the coupling variables to alternate iteration. The particle swarm optimization algorithm and CPLEX solver are used to alternate for solution. Finally, an example is given to demonstrate the effectiveness of the proposed model and the feasibility of the solution method.

Key words: high-voltage distribution network(HVDN), energy-storage power station, bi-level programming, transformer unit, load transfer

中图分类号:

TM715

陈刚, 黄杨, 丁理杰, 柳维衡, 魏巍, 曾宇, 刘友波. 考虑高压配电网转供能力的储能电站双层规划模型[J]. 电力建设, 2021, 42(1): 85-95.

CHEN Gang, HUANG Yang, DING Lijie, LIU Weiheng, WEI Wei, ZENG Yu, LIU Youbo. Bi-level Programming Model of Energy Storage Power Station Considering Transfer Capability of High Voltage Distribution Network[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(1): 85-95.

图/表 16

图1 基本变电单元

Fig.1 Basic substation unit

图2 110 kV网架拓扑

Fig.2 Topology of 110 kV network

表1 钠硫电池性能参数

Table 1 Performance parameters of sodium sulfur batteries

表2 储能电站配置方案

Table 2 Configuration scheme of the energy-storage power Station

图3 双层优化求解流程

Fig.3 Flow chart of the two-layer optimization

图4 某城市电网结构

Fig.4 Grid structure of a city

图5 典型负荷特性曲线

Fig.5 Typical load characteristic curve

图6 不同场景下ESS全寿命周期配置成本及效益

Fig.6 Configuration costs and benefits of energy-storage power station under different scenarios

表3 不同配置策略下ESS规划结果

Table 3 Costs and benefits of the energy-storage power station under different scenarios

图7 不同阻塞管理方案对比

Fig.7 Comparison of different blocking schemes

表4 不同阻塞管理方案转供结果对比

Table 4 Comparison of forwarding results of different blocking schemes

图8 储能电站实时充放电功率

Fig.8 Real-time charging and discharging power of the energy storage station

图9 储能电站SOC

Fig.9 SOC of the energy-storage station

图10 不同配置方案下220 kV线路平均负载率

Fig.10 Average load rate of the 220 kV line under different configuration schemes

图11 不同配置方案下开关转供动作次数

Fig.11 Switching times of the switch under different configuration schemes

图12 不同配置方案下负荷削减量

Fig.12 Load reduction under different configuration schemes

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考虑高压配电网转供能力的储能电站双层规划模型

Bi-level Programming Model of Energy Storage Power Station Considering Transfer Capability of High Voltage Distribution Network

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