An electromechanical converter regulation system for compressor drive
By reconstructing the switching vector timing and sampling the resonant energy valley point, the problem of load torque fluctuation delay lag in the compressor drive system was solved, achieving efficient load state perception and stator magnetic field purity, thus improving the system's stability and efficiency.
Patent Information
- Application Number
- CN202610360148.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-24
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2046-03-24
AI Technical Summary
In existing compressor drive systems, the electromechanical converter has a time delay when adjusting load torque fluctuations, resulting in phase shift and high-frequency harmonic current. Furthermore, the introduction of external sensors increases hardware cost and complexity.
The load torque fluctuation characteristics are obtained by the bus current gradient acquisition unit, the switching vector execution timing is reconstructed, the stator current phase shift is compensated by the zero vector time domain deprivation and effective vector conformal expansion mechanism, and the resonant energy valley point sampling locking mechanism is used to avoid high frequency interference, thereby achieving self-aligned load response.
Without increasing hardware costs, the converter's sensing rate of micro-load conditions is improved, the purity of the stator magnetic field is maintained, asynchronous harmonic current and core eddy current losses are reduced, and the system is ensured to operate stably in a wide temperature range and under varying operating conditions.