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Current prediction control method of duplex 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, can solve the problem that the application of double-winding induction generator has not been studied, and achieve steady-state control performance Excellent, good current control performance, the effect of fixed switching frequency

Active Publication Date: 2021-05-25
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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  • Current prediction control method of duplex winding induction generator system
  • Current prediction control method of duplex winding induction generator system
  • Current prediction control method of duplex 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 duplex winding induction generator system, which relates to the technical field of induction motor driving control, and a PI regulator is used to control bus voltage of a control winding side and a power winding side of a five-phase duplex winding induction generator system as an object. A rotor flux linkage amplitude and an orientation angle are calculated by using a voltage model rotor flux linkage, a current prediction model of a double-winding induction generator system is established, and a predicted value of a control winding current in a next control period is calculated in the current prediction model through the control winding current and the rotor flux linkage amplitude, with a target that the predicted value of the control winding current follows the given value, calculation is performed to obtain the required control winding voltage, the control winding voltage is sent into space vector pulse width modulation, and then a switching signal is output. The current prediction control method is easy to implement, effectively overcomes the problem that parameter setting is difficult in a traditional method, has good current control performance, and enables the dynamic performance of the whole control system to be improved.

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 Applications(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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