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Permanent magnetic motor control device and permanent magnetic motor control method based on energy optimization

A permanent magnet motor, energy optimization technology, applied in the field of power electronics and electric transmission, can solve the problems of low control accuracy of the transmission system, high switching tube loss, poor control performance, etc., to achieve optimal energy control, improve power factor, The effect of suppressing imbalance

Inactive Publication Date: 2012-10-03
NORTHEASTERN UNIV
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  • Abstract
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Problems solved by technology

The traditional electric transmission system has poor control performance and serious energy consumption. The main circuit mostly adopts three-phase thyristor rectifier and inverter circuit, which has low power factor and high switching tube loss; the controller generally adopts the traditional PI control algorithm, and the control accuracy of the transmission system is low. , poor robustness

Method used

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  • Permanent magnetic motor control device and permanent magnetic motor control method based on energy optimization
  • Permanent magnetic motor control device and permanent magnetic motor control method based on energy optimization
  • Permanent magnetic motor control device and permanent magnetic motor control method based on energy optimization

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Embodiment Construction

[0046] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] The permanent magnet motor control device based on energy optimization in this embodiment, such as figure 1 As shown, it includes integrated management and scheduling unit, PWM rectifier unit and inverter control unit.

[0048] The PWM rectifier unit adopts a three-phase four-leg topology, which is used to realize AC-DC power conversion, so as to provide a stable DC voltage for the inverter unit.

[0049] The inverter control unit is used to adjust the output AC voltage, so as to realize the control of the permanent magnet motor.

[0050] The integrated dispatching unit communicates with the rectification unit and the inverter unit through the PROFIBUS network, and is used for the management and dispatch of the rectification unit, the inverter unit and the system test process.

[0051] PWM rectifier unit such as figure 2 as shown, ...

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Abstract

The invention relates to a permanent magnetic motor control device and a permanent magnetic motor control method based on energy optimization. The permanent magnetic motor control device comprises an integrated management and dispatching unit, a pulse width modulation (PWM) rectification unit and an inversion control unit, wherein the PWM rectification unit comprises a controller, and the PWM rectification unit also comprises a power transformation circuit which is of a three-phase four-bridge-arm topological structure and is used for controlling zero-sequence current and compensating input voltage of an electric network so as to eliminate asymmetric current contained in the electric network. Due to the adoption of the permanent magnetic motor control device and the permanent magnetic motor control method, unbalance of the electric network can be effectively inhibited, the power factor is also improved, and the normal running of a rectification circuit is guaranteed; and the inversion unit adopts an energy-optimization-based fuzzy power input (PI) control algorithm to realize the optimum control on energy, so that the energy loss is reduced, and the energy is saved.

Description

technical field [0001] The invention belongs to the technical field of power electronics and electric transmission, and in particular relates to a rectifier circuit based on a three-phase four-arm topology and a fuzzy PI control algorithm based on energy optimization. Background technique [0002] In recent years, with the continuous expansion of my country's industrial scale and the continuous increase of energy demand, especially in the case of rising energy prices in the international market in recent years, the contradiction between my country's industrial development and resource consumption has become more and more prominent. The fundamental reason is The reason is that my country's industry has not got rid of the old path of supporting development with high energy consumption. This seriously restricts the further development of the national economy, so develop an electric transmission control system based on advanced industrial control technology and information techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/00H02M1/12
Inventor 刘秀翀张化光褚恩辉闫士杰董庆雄吕宏
Owner NORTHEASTERN UNIV
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