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Application of Two-phase Hybrid Stepping Motor Based on Three-phase Fuzzy Control Strategy in Aircraft Integrated Thermal Management System

The ever-increasing cooling requirement of advanced fighter jets and the decrease of aircraft cooling capabilities kindle serious thermal management challenges. In this paper, a multi-cycle integrated thermal management control system based on stepper motor servo drive is developed. Based on the “hot oil tank”, the thermal management integration of the dispersion subsystem is realized by different heat exchangers. The incremental control method is utilized to realize real-time adjustment of system cooling flow. The control system is integrated in 16 isomorphic Remote Execution Units (REU). The three-phase inverter bridge is applied to fulfill power drive, saving 25% of power and drive components. The inverse time protection control strategy is adopted to achieve high safety power. The fuzzy control strategy is applied in drive to realized high-precision speed control. Experimental results show that the control strategy has good acceleration performance, high control accuracy, simple structure of the servo control system and high safety level, and it meets the control requirements of the aircraft integrated thermal management system for the servo valve.