新型电力系统下电力二次系统仿真的设计方法

doi:10.16183/j.cnki.jsjtu.2023.541

摘要/Abstract

摘要：

在新形势下,为匹配新型电力系统需求,亟需对信息高度共享且需实时决策的电力二次系统进行建模与仿真.本文首次提出关联电力一次系统运行状态以实现电力二次系统仿真的设计方法.以功能描述复杂的智能变电站二次系统为研究对象,提出电力一次与二次系统仿真的关联方法,阐明其仿真实现框架、数据交互方法及数据同步管理,从而将一次系统的实际电气量数据传导至二次侧,解决二次系统仿真数据源问题.然后,进一步提出电力二次系统的仿真设计方法,基于面向对象统一建模语言(UML)提出其系统级交互设计、元件级类设计和模块级状态设计的方法,从而解析电气量数据在二次系统的传输交互处理转换全流程.最后,以220/110/10 kV主变间隔110 kV侧出口处短路故障场景为算例,结合主变差动保护方案,仿真验证所提方法的有效性.

关键词: 新型电力系统, 电力信息物理系统, 电力二次系统, 数据同步管理, 统一建模语言

Abstract:

Under the new situation, there is an urgent need to model and simulate the power secondary system which highly shares information and implements real-time decision-making, in line with the modeling and simulation requirements of new power systems. In this paper, design methods are proposed for the first time to achieve simulation of power secondary systems by correlating the operating status of the power primary system. The smart substation secondary system with complex functional descriptions is taken as the research object. First, an interrelated simulation method for power primary and secondary systems is proposed, and its simulation implementation framework, data interaction method, and data synchronization management are explained, which enables the actual electrical quantity data of the primary system to be transmitted to the secondary side, solving the problem of data source in the secondary system simulation. Then, a simulation design method for the power secondary system is proposed, incorporating system-level interaction design, component-level class design, and module-level state design based on the object-oriented unified modeling language (UML). Thus, the entire process of transmission, interaction, processing, and conversion of electrical quantity data in the secondary system can be analyzed. Finally, to validate the effectiveness of the proposed method, a case study is conducted using a short-circuit fault scenario at the 110 kV side outlet of the 220/110/10 kV main transformer bay, in conjunction with a differential protection scheme.

Key words: new power system, cyber-physical power system(CPPS), power secondary system, data synchronization (DS) management, unified modeling language (UML)

中图分类号:

TM743

何瑞文, 陆嘉亮, 杨长鑫, 彭浩, MOHAMMAD Shahidehpour. 新型电力系统下电力二次系统仿真的设计方法[J]. 上海交通大学学报, 2025, 59(10): 1419-1430.

HE Ruiwen, LU Jialiang, YANG Changxin, PENG Hao, MOHAMMAD Shahidehpour. Design Methods for Power Secondary System Simulation in New Power Systems[J]. Journal of Shanghai Jiao Tong University, 2025, 59(10): 1419-1430.

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交互动作	基本内容
1	接收FT3报文、提取模拟量信息
2	接收GOOSE报文、提取开关量信息
3	周期性发送SV报文
4	周期性发送心跳GOOSE报文
5	发生故障时变周期发送变位GOOSE报文

状态名	描述	进入动作	内部活动	出口动作
初始状态	运行前的最初状态
初始化状态	进行属性的读取与变量的解析初始化	GetAllAttributes	ArrangeSelflnterruption.
空闲状态	等待报文的到达或仿真结束
报文接收状态	对报文进行类型判别,决定跳转状态	GetPacket	PacketTypeJudment	StatusJump
GOOSE 报文处理状态	对 GOOSE 报文进行处理	GetPacket	GooseProcessing InformGooseSend. WriteStatistics	DestroyPacket
FT3 报文处理状态	对 FT3 报文进行处理	GetPacket	GooseProcessing InformSvSend. WriteStatistics	DestroyPacket
其他报文处理状态	对非法报文进行销毁	GetPacket	WriteStatistics	+DestroyPacket

发送端设备	接收端设备	总时延/ms
主变220 kV电子式互感器	220 kV侧合并单元	0.145
主变110 kV电子式互感器	110 kV侧合智一体化设备	0.145
主变10 kV电子式互感器	10 kV侧合智一体化设备	0.145
220 kV侧合并单元	保护单元	0.426
110 kV侧合智一体化设备	保护单元	0.394
10 kV侧合智一体化设备	保护单元	0.384
保护单元	220 kV侧智能终端	0.434
保护单元	110 kV侧合智一体化设备	0.419
保护单元	10 kV侧合智一体化设备	0.412
220 kV侧智能终端	保护单元	0.434
110 kV侧合智一体化设备	保护单元	0.434
10 kV侧合智一体化设备	保护单元	0.410