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Digital Excitation Control System Utilizing Self-Tuning PID Gains and an Associated Method of Use
Digital Excitation Control System Utilizing Self-Tuning PID Gains and an Associated Method of Use
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机译:利用自整定PID增益的数字励磁控制系统及其使用方法
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摘要
A system and method for self-tuning a PID controller utilized with an exciter and generator, which includes a power source, an exciter electrically connected to the power source, a generator that is electrically energized by the exciter, and a processor that provides a PID controller that calculates system gain an estimated exciter time constant and an estimated generator time constant with a recursive least square with forgetting factor algorithm, wherein the estimated exciter time constant and the estimated generator time constant are utilized to calculate PID gains by the processor, wherein the processor includes a random input generator that is summed with the output of the PID controller as input to determine the PID gains using the estimated exciter time constant and the estimated generator time constant and the processor compares a digital value of rms generator voltage against a reference voltage as input into the PID controller.
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