Electro-magnetic vehicle-mounted motor controller

Abstract

The invention discloses an electro-magnetic vehicle-mounted motor controller, which comprises an electro-magnetic vehicle-mounted motor system (1), a support vector machine current controller (2), a flux weakening angle controller (3), an excitation current controller (4), a rotating speed adjusting module (5), a control current calculation module (6), an mt / alpha-beta coordinate transformation module (7), a control voltage saturation module (8) and an excitation flux linkage observation module (9). According to the invention, by constructing the support vector machine current controller, the process of complex parameter tuning of two traditional current loop PI controllers is avoided, the current tracking capability is improved, control jitter and current harmonics are reduced, and then the performance of a control system is improved.

Description

technical field [0001] The invention belongs to the field of vehicle-mounted motor control, in particular to a high-performance electric excitation vehicle-mounted motor controller. Background technique [0002] The rapid development of the new energy vehicle industry represented by pure electric vehicles is not only significant in reducing air pollution, but also of greater significance in ensuring my country's energy security, promoting sustainable development, and promoting the strategic development of the automotive industry. As the heart of pure electric vehicles, the electric drive system has received more and more attention. At present, the driving motors in the pure electric vehicle market are mainly divided into asynchronous motors and synchronous motors, each with its own characteristics. The rotor of asynchronous motor is simple and reliable, and is widely used in industry, but its power factor and efficiency are low. Synchronous motors can be divided into elect...

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Problems solved by technology

[0004] Therefore, on the basis of the field oriented control system, how to combine the new control method to improve the current control and the flux angle control performance of the rotor excitation winding, and increase the limit speed for the current control module, and improve the current control performance through the new controller to overcome the The problem of complex parameter tuning of the traditional field-oriented control current closed-loop regulator has very important research significance for improving the control performance of the electric excitation synchronous motor speed control system

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