Research On Excited Control Of The High Speed And No Gears AC Excited Generator And Its Simulation

AC excited generator(ACEG) is a kind of new-type generator which was different from the traditional synchronous generator, and the asynchronous generator. It operates in the asynchronous way, but has the same characteristics of the synchronous generator. There are some characteristics of surmounting the synchronous generator at the same time. Because the excited current of the AC excited generator is the three-phase alternating current, which has 3 control amounts: Amplitude, phase and frequency. It makes ACEG more flexible to control, widely to use.This text applies ACEG to gunship power system which original motive with of the high speed mainly. It not only can simplify the volume of the power system, but also improve the quality, has wide developed prospects.Article recommends the development of ACEG electricity technology and shipping power system, the composition and characteristics of shipping power system. And then, it recommends the vector vary technology, derives the mathematical model of AC excited generator. Then, it proposes a control approach--inverse system method which to shipping changeable quantity non-linear system, the control structure is simple, easy to realize, overcome the shortcoming of linear model at the same time, no complicated variable replace either. This chapter also introduce the principle how to choose excitation frequency converter and its classify, analyzed principle of PWM AC-DC-AC converter of the voltage, set up the mathematical model of the converter. Then set up whole mathematical models which include motives, generators, load system, and artificial research temporary attitude, stable state of generator. Finally, introduce system incorporate into the power networks and some questions about stock.