A PID Controller for Zero Grid Export: When Theory Meets Reality
Zero-export control doesn't care about elegance—any overshoot is failure. After days tuning PID gains, discovering a critical sign error, and bridging the gap between Ogata's control theory and real solar-battery systems, I built a rock-solid controller that keeps grid power exactly where it should be. Real-world lessons from simulation fidelity, gain tuning, and industrial energy management.
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