Title :
The use of coordinated control to mitigate the impact of voltage sags caused by motor start
Author :
Knyazkin, Valery ; Soder, Lennart
Author_Institution :
Div. of Electr. Power Syst., R. Inst. of Technol., Stockholm, Sweden
Abstract :
This paper presents preliminary results of the investigation of the possibility to improve the voltage quality by introducing a coordinated control of electric power system components that exhibit voltage control capabilities. It is believed that the coordination of the controls allows for a partial reduction of the costs associated with the installation of new voltage sag mitigation equipment. Also a numerical proportional-integral-derivative controller tuning technique was developed to address the robustness issue. The validity of the proposed strategy of voltage quality improvement was verified by means of nonlinear EMTDC simulations
Keywords :
control system analysis computing; control system synthesis; electric motors; power supply quality; power system CAD; power system control; power system transients; robust control; starting; three-term control; tuning; voltage control; PID; computer simulation; control design; control simulation; coordinated control; electric power system components; motor starting; nonlinear EMTDC simulations; numerical proportional-integral-derivative controller tuning technique; robustness; voltage control capabilities; voltage quality improvement; voltage sag mitigation equipment; voltage sags impact mitigation; Control systems; Costs; Frequency; Power quality; Power system control; Power systems; Proportional control; Protection; Voltage control; Voltage fluctuations;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.896832
