| 摘要 |
PROBLEM TO BE SOLVED: To enable an inverter controller to stably control an inverter over the full operating frequency domain of a motor. SOLUTION: An inverter controller is provided with an allowable error comparator 10, which discriminates whether current deviations ΔiU, ΔiV, and ΔiW outputted from subtractors 6U, 6V, and 6W fall within a prescribed allowable error range and outputs the discriminated results to a voltage vector selecting circuit 11 as switching requests (voltage vector updating requests). |
