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Motor model prediction control method and device based on fast and effective set and controller

A technology of predictive control and motor model, applied in motor control, motor generator control, control of electromechanical brakes, etc., can solve the problem of limited capacity of motor current control method, and achieve dynamic response ability of current, convenient constraint and high efficiency Effect

Inactive Publication Date: 2021-02-23
WEICHAI POWER CO LTD
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  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a motor model predictive control method, device, and controller based on fast active sets, so as to solve problems such as limited capacity of existing motor current control methods

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  • Motor model prediction control method and device based on fast and effective set and controller
  • Motor model prediction control method and device based on fast and effective set and controller
  • Motor model prediction control method and device based on fast and effective set and controller

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. All other embodiments obtained by those skilled in the art based on the basic concepts disclosed and suggested by the embodiments of the present invention belong to the protection scope of the present invention.

[0048] refer to figure 1 As shown, it is a schematic diagram of a fast active set-based motor model predictive control method provided by an embodiment of the present invention. The control method can be executed by a fast active set-based motor model predictive control device. The control device uses software and / or It is implemented in the form of ha...

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Abstract

The embodiment of the invention discloses a motor model prediction control method and device based on a fast and effective set, and a controller, and the method comprises the steps: building a basic continuous state equation under a synchronous rotating coordinate system based on a voltage equation of a motor, and obtaining a basic discrete state equation through a forward Euler formula; accordingto the basic discrete state equation, constructing an augmented state equation, and designing a performance evaluation function of model prediction control; and converting the performance evaluationfunction into a quadratic programming problem, and solving the quadratic programming problem by adopting a fast and effective set. In the embodiment of the invention, the motor current is predicted and controlled based on the continuous control set model, and the efficient current dynamic response capability is ensured; the quadratic programming problem is solved based on a fast and effective setmethod, the calculation workload can be greatly saved, and the whole algorithm has high efficiency; and real-time control of the permanent magnet synchronous motor can be realized on the embedded chipby the complex quadratic programming optimization problem.

Description

technical field [0001] Embodiments of the present invention relate to motor current control technology, in particular to a fast active set-based motor model predictive control method, device and controller. Background technique [0002] The interior permanent magnet synchronous motor (IPMSM) has been popularized and applied in various fields due to its advantages of high efficiency, high power density and high power factor, such as metallurgical industry, rubber industry, automobile industry, etc. . The starting and running of a permanent magnet synchronous motor is formed by the interaction of the magnetic field generated by the stator winding, the rotor assembly and the permanent magnet. [0003] At present, the high-performance permanent magnet synchronous motor mainly adopts the current loop control based on the proportional-integral (PI) regulator. The current loop control method based on PI regulator has the advantages of good steady-state performance and small torqu...

Claims

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Application Information

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IPC IPC(8): H02P21/22H02P21/14G06F30/20G06F17/11G06F17/15
CPCH02P21/22H02P21/14G06F30/20G06F17/11G06F17/15H02P2207/05
Inventor 高乐孙楠楠马刚强
Owner WEICHAI POWER CO LTD
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