Abstract
With increase in power demand over the last few decades, there has been a great expansion in power generation & transmission. But due to various disturbances, improper loading and environmental conditions the power systems are working near their stability limits which have become a power-transfer limiting factor. This in turn poses a threat to the stability of the system. Transient stability has been considered as one of the most important stability for a power system. In this paper Static VAR Compensator (SVC) has been discussed for reactive power control and hence improvement of transient stability and voltage profile. This paper incorporates IEEE-9 BUS test system with SVC controller using MATLAB Simulation.
Highlights
Power transmission networks of present are becoming progressively more stressed due to increasing request and, limitations on erecting new improved transmission cable
The actual simulation model consists of 3 synchronous generators & three power transformers of which 2 are of 5000MVA and 1 is of 1000MVA, a transmission line network of 1135KM, three loads, 9 buses, a three phase fault occurring at bus 8 and a Static VAR Compensator (SVC) block (FC-TCR type)
The actual simulation model of the proposed system with and without SVC is shown in Figure 5 & 6
Summary
Power transmission networks of present are becoming progressively more stressed due to increasing request and, limitations on erecting new improved transmission cable. FACTS such as Steady AC Compensator use the vanguard of electronic on/off devices in power transmission complex to control volt and watt flow & have a salient role in stability & in the response to transients’ disturbances in interconnected power systems [1], [2], [16].
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