Voltage-adjustable motor control system
A motor control and voltage technology, which is applied in the direction of motor generator control, control system, electronic commutation motor control, etc., can solve the problems of motor loss model that is difficult to describe accurately, parameters are sensitive, etc., and achieve optimal efficiency, long flight distance, The effect of long combat
Active Publication Date: 2017-05-10
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Problems solved by technology
Traditional efficiency optimization methods for motor drive systems are usually based on the motor loss model, however, the efficiency improvement method based on the motor model is sensitive to parameters, and the motor loss model is difficult to accurately describe in harsh airborne equipment environments and complex load changes
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[0010] The present invention will be further described in detail through specific embodiments below.
[0011] figure 1 Shown is the functional block diagram of the permanent magnet synchronous motor control system. The entire motor control system includes a DC power supply 1 that provides DC power input. The DC power supply can be a battery or a DC power generated by a generator, a DC / DC converter 2 connected to the DC power supply 1, and an inverter connected to the DC / DC converter 2. A converter 3, a permanent magnet synchronous motor 4 connected to the inverter 3, and a control system 5 for controlling the DC / DC converter 2 and the inverter 3.
[0012] The control system 5 includes an energy management module 51 , an input power calculation unit 52 , an efficiency optimization calculation unit 56 , a current control unit 55 , a Park conversion module 54 , a Park inverter module 53 , and a PWM module 57 .
[0013] command torque T * And the current motor speed input effic...
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The invention relates to control of a permanent magnet synchronous motor, in particular to a voltage-adjustable motor control system and control method. By the motor control system and control method, the efficiency of the permanent magnet synchronous motor is optimized. A traditional motor driving system efficiency optimization method is generally based on a motor loss model, while the efficiency improvement method based on the motor model is relatively sensitive to a parameter, and the motor loss model is difficult to accurately describe in a severe airborne equipment environment and complicated load change. In the voltage-adjustable motor control system, a DC power supply is used for providing a driving voltage for the permanent magnet synchronous motor by an inverter, the motor control system controls the inverter, and a DC / DC converter is further connected between the DC power supply and the inverter. By the optimization method based on and incompletely dependent on the motor loss model, the efficiency of the motor control system is optimal, the flight distance of a military aircraft is farther, and the fight time is longer.
Description
technical field [0001] The invention relates to the control of a permanent magnet synchronous motor, in particular to a motor control system and a control method with adjustable voltage, which optimize the efficiency of the permanent magnet synchronous motor. Background technique [0002] Permanent magnet synchronous motors are widely used in aviation systems, especially in occasions requiring high servo performance such as EMA, EBHA and EHA. On military aircraft, permanent magnet synchronous motors are powered by batteries or aero-generators. In order to make military aircraft fly as far as possible, provide longer combat time, and improve the efficiency of the entire system is extremely important. Traditional efficiency optimization methods for motor drive systems are usually based on the motor loss model. However, the efficiency improvement method based on the motor model is sensitive to parameters, and the motor loss model is difficult to accurately describe in harsh ai...
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IPC IPC(8): H02P21/22H02P27/12
Inventor 张坤刘东米长宝
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA