Process simulation of Under Frequency Load Shedding (UFLS) based on Matlab with State flow

Author

Runge Hu ; Lu Li ; Guoqing Jiang ; Dongsheng Xu

Author_Institution

State Grid Henan Electr. Power Co., Zhengzhou, China

fYear

2014

fDate

23-26 Sept. 2014

Firstpage

432

Lastpage

436

Abstract

In today´s electricity market, the power supply enterprises have to face power quality problems. The reducing of power system frequency threaten the safety of power grids. At this time, we have to use the Under Frequency Load Shedding(Hereinafter referred to as the UFLS) device to remove partial load, to restore the system frequency within the level of security. UFLS device, therefore, the correct action or not is directly related to the safe and stable operation of the power grid. Based on Matlab/Simulink, we set up a simulation model to simulate and analyze the process of UFLS of single machine and interconnected system with module (PSB) and State Flow. Using State Flow in power system simulation is not used in the former scientific research. This subject verifies the validity of the logic action of State Flow using on the power system simulation.

Keywords

load shedding; power grids; power markets; power supply quality; power system interconnection; power system security; electricity market; interconnected system; partial load; power grids; power quality; power system frequency; process simulation; state flow; under frequency load shedding; Abstracts; Delays; Frequency measurement; Integrated circuit modeling; Load modeling; MATLAB; Pulse measurements; Matlab; Simulation; State Flow; UFLS;

fLanguage

English

Publisher

ieee

Conference_Titel

Electricity Distribution (CICED), 2014 China International Conference on

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/CICED.2014.6991744

Filename

6991744