Construction method of electric vehicle permanent magnet hub motor energy composite controller

A composite controller and in-wheel motor technology, applied in motor generator control, electronic commutation motor control, electric vehicles, etc., can solve problems such as torque fluctuation, pulsation, permanent magnet demagnetization output torque, etc.

Active Publication Date: 2021-04-23
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for constructing an energy compound controller of a permanent magnet hub motor for an electric vehicle, aiming at the problem of demagnetization of the permanent magnet caused by the overheating of the operating environment o

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  • Construction method of electric vehicle permanent magnet hub motor energy composite controller
  • Construction method of electric vehicle permanent magnet hub motor energy composite controller
  • Construction method of electric vehicle permanent magnet hub motor energy composite controller

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Embodiment Construction

[0022] Such as figure 1 As shown, the composite controlled object 1 is jointly constructed by the permanent magnet hub motor 11, the temperature measurement module 12 and the rotational speed and electrical angle calculation module 2, and the input of the composite controlled object 1 is the three-phase control current i for controlling the permanent magnet hub motor 11 a i b i c and the motor winding temperature T 1 and motor case temperature T 2 , the output is the electrical angle θ and the motor speed ω r . Wherein, the temperature measurement module 12 detects the motor winding temperature T of the permanent magnet in-wheel motor 11 1 and motor case temperature T 2 And output, the rotational speed and electrical angle calculation module 2 obtains the electrical angle θ and the motor rotational speed ω of the permanent magnet hub motor 11 r and output. The rotation speed and electrical angle calculation module 2 is composed of a mechanical rotation angular velocity...

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Abstract

The invention discloses a construction method of an electric vehicle permanent magnet wheel hub motor energy composite controller.A composite controlled object is formed by a permanent magnet wheel hub motor, a temperature measurement module and a rotating speed and electric angle calculation module, and a PARK conversion module, a CLARK conversion module and a PWM inverter module are sequentially connected in series to form a composite inverter control module; an intelligent heat control module is composed of a temperature setting module, a heat calculation module, and a heat regulation and control module, a heat PI regulation module and a current conversion module which are sequentially connected in series; a flux linkage observation module, a coordinate transformation module, a torque error calculation module, a reference torque calculation module, a torque estimation module, a target torque giving module, a PI adjustment module, a phase angle updating module and a current transformation module jointly form a composite temperature control torque module, and the temperature of the hub motor is measured to feed back and adjust the running state of the motor; and the composite temperature control torque module and the heat control module are jointly regulated and controlled to realize temperature and torque control.

Description

technical field [0001] The invention relates to a permanent magnet hub motor for an electric vehicle, in particular to a construction method of a controller thereof, which is suitable for compound control of heat feedback and torque fluctuation of a permanent magnet hub motor system of an electric vehicle, and belongs to the technical field of permanent magnet hub motor control. Background technique [0002] The transformation from traditional cars to pure electric vehicles will effectively solve the energy and environmental problems faced by the automotive industry. Pure electric vehicles are clean and environmentally friendly and can achieve zero emissions. The in-wheel motor is to install the motor in the wheel, which has the advantages of high transmission efficiency and flexible control. Compared with the traditional driving method, it saves the complicated mechanical rotation, not only reduces the weight of the vehicle, but also increases the size of the vehicle interio...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/14H02P21/18H02P21/20H02P21/22B60L15/20
CPCY02T10/64Y02T10/72
Inventor 孙晓东蔡峰陈龙田翔周卫琪
Owner JIANGSU UNIV
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