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

A technology of permanent magnet synchronous motor and energy coordination, which is applied in vector control system, control system, motor control, etc., and can solve problems such as failure to meet the high performance requirements of the drive system

CN113794418APending Publication Date: 2021-12-14山东安平十方电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-12-14

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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.
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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...

Examples

Embodiment 1

[0034] The invention discloses a signal and energy coordinated control system of a permanent magnet synchronous motor for vehicles, including a 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 A space vector pulse width modulation module and an inverter; the speed and position detection module is used to collect the speed ω and the position angle θ of the permanent magnet synchronous motor; the current detection module is used to collect the three-phase current i of the permanent magnet synchronous motor a ,i b ,i c ; The feedback linearization signal control module is based on the position θ, rotational speed ω, current i of the permanent magnet synchronous motor d ,i q , torque T L and a given position θ r , use the coordinate change to get the input-output feedback linearization system, and calculate the control co...