Signal and energy coordination control system and method for vehicle permanent magnet synchronous motor

Abstract

The invention discloses a signal and energy coordination control system and method for a vehicle permanent magnet synchronous motor. The system comprises a rotating speed and position detection module, a current detection module, a feedback linearization signal control module, a port controlled Hamiltonian energy control module, a coordination control module, a voltage space vector pulse width modulation module and an inverter. Compared with the prior art, the signal and energy coordination control system has the beneficial effects that under the condition that the system simultaneously meets the requirements of rapid dynamic operation position adjustment and steady-state operation energy efficiency optimization of the system, design results of a signal controller, an energy controller and a coordination control strategy are given, and the stability dynamic and steady-state performance of the system is analyzed; an internal relation between system signal conversion and energy conversion is revealed through signal control, and a rapid tracking adjustment rule of a position track is given; an internal relation between system energy loss and system total energy is disclosed through energy control, and an energy efficiency optimization principle is given; and continuous and stable operation of the system is realized through coordination control.

Description

technical field [0001] The invention relates to the control field of permanent magnet synchronous motors for vehicles, in particular to a signal and energy coordinated control system and method for permanent magnet synchronous motors for vehicles. Background technique [0002] The automobile industry is a landmark industry that reflects national competitiveness and plays an important role in the national economy and social economy. Electric vehicles are an important structural upgrade and breakthrough for the automotive industry to deal with energy security, climate change and environmental protection, and have become a "green" industry with great market potential in the 21st century. As one of the key technologies of electric vehicles, the level of motor drive control technology directly affects the overall performance of electric vehicles. Permanent magnet synchronous motors are widely used in the field of electric vehicle drive systems due to their significant advantages...

AI Technical Summary

Problems solved by technology

Therefore, the simple use of signal control or energy control can no longer meet the high performance requirements of electric vehicles for the drive system. Only by comprehensively analyzing its signal and energy conversion characteristics to study the control strategy of the permanent magnet synchronous motor drive system can we truly reveal the nature of the problem

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