Aerial three-level electric excitation motor starting control method and aerial three-level electric excitation motor starting control device
A technology of synchronous motor and electric excitation, which is used in motor generator control, electronic commutation motor control, control of electromechanical transmission devices, etc. The problem of accurate decoupling of the three-phase current of the generator can improve the control performance of the system, reduce the comprehensive control error, and improve the starting control effect.
A technology of synchronous motor and electric excitation, which is used in motor generator control, electronic commutation motor control, control of electromechanical transmission devices, etc. The problem of accurate decoupling of the three-phase current of the generator can improve the control performance of the system, reduce the comprehensive control error, and improve the starting control effect.
CN102780443AActive Publication Date: 2012-11-14NORTHWESTERN POLYTECHNICAL UNIV +1
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[0032] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0033] The control principle block diagram of the inventive method is as figure 2 shown. Among them, the speed closed-loop controller will set the given speed of the motor The modulus U of the output voltage vector after PID adjustment of the difference from the actual speed ω * ; The exciter output estimator calculates the output voltage of the exciter and the excitation current of the main generator according to the actual speed of the current motor, combined with the measured main generator i d i q Calculate the ideal i for the current main generator operation from the value of * d value and compare it with the actual i of the main generator dThe angle between the output voltage vector and the d-axis of the main generator rotor after PID adjustment is used to realize the voltage vector positioning and complete the main generator i d Value adjustment; ...
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The invention relates to an aerial three-level electric excitation motor starting control method and an aerial three-level electric excitation motor starting control device. The method comprises the following steps of: determining the controller output voltage vector in the mode of directly controlling the module value of the voltage vector and an included angle between the voltage vector and a main generator rotor, transmitting a switching signal of a three-phase full-bridge inverter in a mode of modulating a support vector machine (SVM) through a space vector, controlling the inverter to drive the main generator, and realizing the starting function of the three-level electric excitation synchronous motor. The aerial three-level electric excitation motor starting control method has the advantages that 1) the control links are fewer, a speed ring PI regulator and a current ring PI regulator are independent, and the parameters are conveniently adjusted; 2) real-time state information of the system is not required, the acquired original information of the main generator can be processed by using a complicated filtering algorithm, the information has certain robustness on transient interference, and the control performance of the system can be effectively improved; and 3) control objectives are fewer, and the comprehensive control error caused by electromagnetic interference of an exciter on the main generator can be effectively reduced.
Description
technical field [0001] The invention relates to a starting control method and device for an aviation three-stage electric excitation synchronous motor, which is a control method and a device for realizing the starting function of an aviation three-stage electric excitation synchronous motor by using space vector modulation, and belongs to the technical field of AC motor transmission . Background technique [0002] The dual-function integration of starting / generating is an important development direction of the future aviation AC power system. At present, three-stage electric excitation synchronous motors are widely used in aviation high-power AC power systems (see figure 1 ) as a generator, if the motor can be used to start the aeroengine, it can effectively reduce the complexity of the aeropower system, reduce weight and improve reliability. However, the motor is mainly designed to meet the power generation function, and there are the following problems in the motoring st...
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Patent Timeline
14 Nov 2012
Publication
CN102780443A
- IPC
- H02P21/00; H02P21/34
- Inventors
- 马鹏; 刘卫国