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A current predictive control method for a double-winding induction generator system

A technology of induction generator and current prediction, applied in motor generator control, electronic commutation motor control, control generator and other directions, it can solve the problem that the application of double-winding induction generator has not been studied, and achieve steady-state control performance. Excellent, overcoming the difficulty of parameter setting, the effect of fixed switching frequency

Active Publication Date: 2021-10-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Application Information

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Problems solved by technology

However, the current research on current predictive control is limited to grid-connected inverters, rectifiers, permanent magnet synchronous motors, etc., and the application in double-winding induction generators has not yet been studied.

Method used

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  • A current predictive control method for a double-winding induction generator system
  • A current predictive control method for a double-winding induction generator system
  • A current predictive control method for a double-winding induction generator system

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Embodiment Construction

[0051] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0052] The schematic diagram of the five-phase two-winding induction generator system is as follows: figure 1 As shown, the control winding side of the five-phase double-winding induction generator is connected with a five-phase static excitation converter SEC, which is used to adjust the reactive power of the generator; the power winding side is connected with a DC load and a five-phase uncontrolled rectifier bridge. The electricity directly outputs DC power through a five-phase rectifier bridge.

[0053] In the five-phase double-winding induction generator system, the DC bus voltage on the control winding side is positively correlated with the electromagnetic torque, and the DC bus voltage on the power winding side is positively correlated with the flux linkage amplitude. The electromagnetic torque is adjusted by active power, and the qua...

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Abstract

The invention discloses a current prediction control method of a dual-winding induction generator system, which relates to the technical field of induction motor drive control. Taking a five-phase dual-winding induction generator system as an object, a PI regulator is used to control the control winding side and the power winding of the induction generator system. The side bus voltage is calculated by using the voltage model rotor flux linkage to obtain the rotor flux linkage amplitude and orientation angle, and the current prediction model of the dual-winding induction generator system is established. By controlling the winding current and the rotor flux linkage amplitude, the current prediction model is calculated In the next control cycle, the predicted value of the control winding current is set to keep up with the given value, and the required control winding voltage is calculated and sent to the space vector pulse width modulation to output the switch signal. The current predictive control method is simple to implement, effectively overcomes the problem of difficult parameter setting in the traditional method, and has better current control performance, thereby improving the dynamic performance of the entire control system.

Description

technical field [0001] The invention relates to the technical field of induction motor drive control, in particular to a current prediction control method for a double-winding induction generator system. Background technique [0002] The rapid development of multi-electric aircraft has put forward the requirements of large capacity, high efficiency, high reliability and high power supply quality for aviation power system. As one of the research hotspots of aviation power system, the development of DC power system is inseparable from the development of its power generation technology. Among many DC power systems, the double-winding induction generator system inherits the advantages of simple structure and high reliability of the cage induction generator system, and overcomes the shortcomings of its large converter capacity, and has become a good choice for DC power systems. [0003] To give full play to the advantages of the dual-winding induction generator system, it is ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/22H02P9/00
CPCH02P9/00H02P21/22
Inventor 卜飞飞罗捷李晨曦赵云黄文新刘皓喆
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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