基于线性潮流的电力系统长时间尺度快速时序仿真方法

doi:10.12204/j.issn.1000-7229.2022.02.015

电力建设 ›› 2022, Vol. 43 ›› Issue (2): 126-134.doi: 10.12204/j.issn.1000-7229.2022.02.015

• 新能源发电 • 上一篇

基于线性潮流的电力系统长时间尺度快速时序仿真方法

董昱¹(), 董存¹(), 于若英²(), 夏俊荣²(), 王会超²()

1.国家电网有限公司,北京市100086
2.中国电力科学研究院有限公司,南京市210003

收稿日期:2021-03-11 出版日期:2022-02-01 发布日期:2022-03-24
通讯作者: 于若英 E-mail:dongyu@sw.sgcc.com.cn;dong-cun@sgcc.com.cn;yuruoying@epri.sgcc.com.cn;xiajunrong@epri.sgcc.com.cn;17600271330@163.com
作者简介:董昱 (1974),男,硕士,教授级高级工程师,研究方向为电网调度运行及管理等,E-mail: dongyu@sw.sgcc.com.cn;
董存(1973),男,博士,教授级高级工程师,研究方向为新能源调度运行管理和电力系统生产运行等,E-mail: dong-cun@sgcc.com.cn;
夏俊荣(1985),男,博士,高级工程师,研究方向为新能源发电并网技术,E-mail: xiajunrong@epri.sgcc.com.cn;
王会超(1993),男,硕士,工程师,研究方向为分布式新能源调度管理,E-mail: 17600271330@163.com。
基金资助:
国家电网公司科技项目“分布式新能源接入电网的承载力评估方法研究与应用”(4000-202055050A-0-0-00)

Long-Term Fast Sequential Simulation Method Based on Linearized Power Flow for Power System

DONG Yu¹(), DONG Cun¹(), YU Ruoying²(), XIA Junrong²(), WANG Huichao²()

1. State Grid Corporation of China, Beijing 100086, China
2. China Electric Power Research Institute,Nanjing 210003,China

Received:2021-03-11 Online:2022-02-01 Published:2022-03-24
Contact: YU Ruoying E-mail:dongyu@sw.sgcc.com.cn;dong-cun@sgcc.com.cn;yuruoying@epri.sgcc.com.cn;xiajunrong@epri.sgcc.com.cn;17600271330@163.com
Supported by:
State Grid Corporation of China Research Program(4000-202055050A-0-0-00)

摘要/Abstract

摘要：

电力系统长时间尺度时序仿真和生产模拟是可再生能源和电网规划设计阶段的重要依据,也是检验规划设计方案科学性的有效工具。首先,为了提高大规模电力系统长时间尺度时序仿真效率,针对输电网的特点,提出了一种输电网潮流线性化方法,并基于IEEE标准算例对线性潮流的精度及计算效率进行检验和对比,结果表明该方法不仅具有较高的计算精度,还可以有效减小大规模电力系统潮流的计算时间。然后针对可再生能源不同的选址定容方案,采用该线性潮流模型进行电力系统长时间尺度快速时序仿真。仿真得到了节点电压幅值、支路功率等关键潮流信息,对电力系统的网架结构和可再生能源机组选址定容的规划设计具有十分重要的意义。

关键词: 时序仿真, 生产模拟, 线性化潮流, 电力系统规划, 可再生能源, 潮流计算

Abstract:

Power system long-term sequential simulation and production simulation are important basis for renewable energy and power grid planning, and also effective tools to verify the scientificity of planning and design scheme. First of all, in order to improve the efficiency of long-term sequential simulation of large-scale power systems, this paper proposes a method of linearization of power flow of transmission grid according to the characteristics of transmission grids, and verifies the accuracy and calculation efficiency of linear power flow applying IEEE standard calculation examples. The results show that this method not only has higher calculation accuracy, but also can effectively reduce the calculation time for the power flow of large-scale power systems. Then, according to different site-selection and capacity-determination schemes of renewable energy, the linear power flow model is used to carry out the long-term fast sequential simulation of the power system. The simulation has obtained key power flow information such as node-voltage amplitude and branch power, which is of great significance to the grid structure of the power system and the planning and design of the location and capacity of renewable energy units.

Key words: time sequential simulation, production simulation, linearized power flow, power system planning, renewable energy, power flow calculation

中图分类号:

TM711

董昱, 董存, 于若英, 夏俊荣, 王会超. 基于线性潮流的电力系统长时间尺度快速时序仿真方法[J]. 电力建设, 2022, 43(2): 126-134.

DONG Yu, DONG Cun, YU Ruoying, XIA Junrong, WANG Huichao. Long-Term Fast Sequential Simulation Method Based on Linearized Power Flow for Power System[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(2): 126-134.

图/表 10

图1 电力系统长时间尺度时序仿真技术路线由于本文的主要工作为输电网潮流方程的线性化,因此重点对长时间尺度时序仿真的时间效率和精确性进行验证,从而证明所提出算法在电力系统长时间尺度仿真中的优越性。

Fig.1 Technology roadmap for the long-term time sequential simulation of power system

图2 IEEE 30节点测试系统计算结果

Fig.2 Testing results of IEEE 30-bus system

图3 IEEE 118节点测试系统计算结果

Fig.3 Testing results of IEEE 118-bus system

图4 IEEE 300 节点测试系统计算结果

Fig.4 Testing results of IEEE 300-bus system

表1 计算效率比较

Table 1 Comparison of computational efficiency

图5 IEEE 30节点测试系统下3种潮流计算方法结果对比

Fig.5 Comparison of power-flow calculation results of the IEEE 30-bus test system

图6 IEEE 118节点测试系统下3种潮流计算方法结果对比

Fig.6 Comparison of power-flow calculation results of the IEEE 118-bus test system

表2 选址定容方案

Table 2 Configuration of renewable energy

图7 时序仿真电压幅值上下限

Fig.7 Maximum and minimum values of the voltage magnitude

图8 时序仿真支路功率上限

Fig.8 Maximum values of the line power

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基于线性潮流的电力系统长时间尺度快速时序仿真方法

Long-Term Fast Sequential Simulation Method Based on Linearized Power Flow for Power System

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