Design Of Excitation Controller Based On DSP

Excitation controller, as a main part of excitation system in the synchronic generator, affects the safe and steady operation of generators and power systems. With its enlargement of scale, as the structure and run mode of it are increasingly complex, the power system requires that the excitation system has better operation performance, higher reliability, better economical efficiency and flexibleness. According to the developing direction of excitation controller both here and abroad, this paper researches and develops DSP excitation controller of synchronic generator by TMS320LF2407 as the control center.In the first chapter, the paper introduces the state and trend of excitation controller in the synchronic generator and analyses the problems existing in it. In the chapter two, this paper also presents the history, feature and application range of DSP chip and chooses TMS320LF2407as the control center of excitation controller by means of comparing the performance between TMS320LF2407 and the other control chips. In the chapter two and chapter three, this paper describes the design methods of the hardware and software used in the excitation controller based on TMS320LF2407, presents the schematic diagram of hardware and the flow chart of the software, and with them, frequency measurement, control rule and etc, are realized in one chip taking advantage of the characters of TMS320LF2407, such as high performance processing capabilities, plenty of peripherals on chip and high real time control and so on. Adoption of TMS320LF2407makes the excitation controller has simpler structure, stronger anti-jamming capability and higher stability. In the chapter four, this paper introduces the process of the excitation controller testing and analyses the test result.The test result indicates that: the excitation controller based on TMS320LF2407, the properties of which reach or precede state criterion, has the characters of simple hardware structure, high reliability, easy maintains, high ratio between performance and price and etc.The excitation controller based on TMS320LF2407 has a bright application value in the future.