Voltage control in power systems with IPP

Voltage control in electric power systems can become a major problem in a restructured electricity market. In a competitive market with dispersed and autonomous generation, system operation will have to be adapted according to the decentralised power production structure. New mathematical analysis procedures must be further developed to study the system behaviour. Continuation load flow with calculation of stability indices is an appropriate tool for static studies. Bifurcation analysis provides insight in the stability behaviour of the power system dynamics. Both tools are explained and an application example is presented.