The IS200WEMAH1ACA/IS215WEMAH1BA excitation main input/output board primarily handles signal interaction for wind power regulation and closed-loop control of the excitation system. It receives feedback signals from the generator-side voltage transformer (PT), current transformer (CT), and temperature sensor to monitor generator voltage, current, and temperature rise in real time, and collects generator rotor speed signals to participate in closed-loop speed control, ensuring stable grid connection frequency. It also sends control commands to the EX2100 excitation regulator to adjust the firing angle of the thyristor rectifier bridge, achieving precise closed-loop control of the excitation current.
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