Analysis Methods and Simulation Technology Implementation for Power Secondary Systems in New Power Systems

doi:10.16183/j.cnki.jsjtu.2024.092

Abstract

Abstract:

The stochastic dynamic behavior of power secondary system is opaque and difficult to visualize, which obviously hinders the control of the uncertainties brought by strong dependence on information and communication technologies in new power systems. In this paper, methods for steady-state analysis, static security analysis, and transient analysis of power secondary systems, are proposed for the first time. First, a smart substation secondary system with complex functional descriptions is taken as the research object. A simulation tool for the secondary system of intelligent substations is developed and integrated into general network simulation software, which faithfully simulates the entire process of digital information transmission, flow, and processing in the secondary system. Combined with the device-level simulation tester, system-level path tracking and delay recording technology, scenario-level action characteristic display technology, and simulation acceleration technology proposed in this paper, and taking an actual intelligent substation engineering project as a case study, the steady-state analysis, static security analysis, and transient analysis of the power secondary system are realized under network transmission steady-state scenarios, secondary component (partial) failure scenarios, and circuit breaker failure scenarios.

Key words: new power system, power secondary system, steady-state analysis, static security analysis, transient analysis

CLC Number:

TM743

HE Ruiwen, YANG Changxin, XIE Haijun, YANG Shenghui, MOHAMMAD Shahidehpour. Analysis Methods and Simulation Technology Implementation for Power Secondary Systems in New Power Systems[J]. Journal of Shanghai Jiao Tong University, 2026, 60(2): 175-185.

Figures/Tables 14

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设备	报文类型	报文大小/B	发送时间间隔/s
互感器	FT3	60	0.00025
保护单元	GOOSE	300	5
	MMS	700	1
多功能测控单元	GOOSE	300	5
	MMS	700	1
	PMU	136	0.01
采集执行单元	SV	315	0.000 25
	GOOSE	300	5
站控主机	MMS	200	1

业务类型	平均时延/s	最大时延/s
SV	0.000049	0.000051
心跳GOOSE	0.000042	0.000043
站控层GOOSE	0.00012	0.00012
保护信息	0.0015	0.00175
遥测	0.00105	0.00145
遥信	0.00067	0.00069
同步相量测量	0.00023	0.00024
电量测量	0.000103	0.000135