Steady-State Analysis of an Induction Generator Self-Excited by a Capacitor in Parallel with a Saturable Reactor

Journal Article

• Publication Online URL: http://dx.doi.org/10.1080/07313569808955845
• Magazine \ Newspaper: Electric Machines & Power Systems
• Pages: 617-625

Publication Abstract

Poor voltage regulation is one of the majordrawbacksof an isolated self-excited induction
generator. The terminal voltagemayincreaseconsiderablydue to a small increase in speed.
In most developing countries, unregulated wind-turbinesare often used due to their lower
cost. Under these conditions the terminal voltage may increase to a dangerously high level
which maycause damageto the machine,load or excitation capacitor. This paper examines
the advantage of connecting a saturable reactor in parallel with the excitation capacitor. It
is found that the saturable reactor improvesvoltage regulation considerably.