SVC In The Power System And Its Impact On Power System Stability

Power system as a national production of basic pillar industries of life, The stability and effectiveness of its operation has an important significance for the national life and industrial production. The cause of instability in today’s power system operation is mostly due to the power system reactive power are insufficient or unreasonable distribution, Or reactive power margin is less than when the power system failure rather than with transient stability. In order to improve power system stability and reliability, Improve the reactive power margin, Implementation of dynamic reactive power compensation for power system. Static var compensator(SVC) can improve power system stability. Widely used in today’s power system.Order to study the static var compensator(SVC) for power system stability, Respectively, from the static stability of power system, Dynamic stability and the set of modeling and simulation. In the study of the static var compensator static stability of power system.To build a stand-alone load system, Added to the SVC before and after the system load at active, reactive power margin to determine the role of the SVC for improving the static stability of power system. Static var compensator for power system dynamic stability, to build a dual-loading system.To determine its impact on the power system dynamic stability through, then add the SVC before and after the system parameters of the difference in the system a variety of dynamic fault.Location through building three-machine nine-node model, SVC installed at different load nodes to observe the voltage waveform of different installation address, to determine how to install static var compensator (SVC) can it compensate for the effect to achieve the best.