Solid state reactive power modulation for enhancement of maximum power transfer and stability in an interconnected power system

Author

Hussain, Badruzzaman ; Behera, Anup K.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA

fYear

1991

fDate

24-27 Jun 1991

Firstpage

299

Lastpage

305

Abstract

An application of a solid-state static VAr compensator (SSSVC) to modulate the reactive power requirement in the system by controlling the voltage profile of the network is shown. The mathematical model for a single-machine infinite bus is developed based on a prior optimized switching pattern for various modulation indexes which, when applied to the inverter to control the output voltage, enhance the power system dynamics. It is demonstrated that the steady-state stability of a power system can be improved by effective modulation of the reactive power in the system. Voltages and power flows are locally measured at the SSSVC location and conditioned for proper utilization as control signals for the SSSVC to improve the damping of interties

Keywords

power system control; power system interconnection; reactors (electric); stability; static VAr compensators; switching circuits; thyristor applications; voltage control; interconnected power system; mathematical model; maximum power transfer; power flows; prior optimized switching pattern; reactive power modulation; single-machine infinite bus; solid-state static VAr compensator; stability; thyristor controlled reactor; voltage profile control; Control systems; Mathematical model; Modulation; Power system dynamics; Power system stability; Reactive power; Reactive power control; Solid state circuits; Static VAr compensators; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-0090-4

Type

conf

DOI

10.1109/PESC.1991.162692

Filename

162692