Cooling control method and cooling control device for motor and controller thereof
A cooling control and controller technology, applied in cooling/ventilation devices, electromechanical devices, electric power devices, etc., can solve the problems of low energy saving and low water inlet temperature, and achieve the effect of reducing overall noise and meeting cooling needs
Active Publication Date: 2020-04-10
上海元城汽车技术有限公司
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Problems solved by technology
However, this cooling method will cause the temperature of the water inlet to be much lower than the target value, and the fan will run at high speed for a long time, which will not save energy; in order to meet the constant flow demand, the water pump will run at high speed for a long time, which will not save energy
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[0025] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. 的实施例。 Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0026] See figure 1 , Which is a schematic structural diagram of a motor cooling circulation system. In actual operation, the cooling circulation system is operated by a water pump 12 to circulate the cooling water in the system. Among them, the motor 10 and the motor controller 11 are mainly cooled and dissipated. The radiator 13 is used to dissipate the water output through the heat exchange ...
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The invention provides a cooling control method and a cooling control device for a motor and a controller thereof. The method comprises the following steps: firstly, acquiring the following parameters: real-time rotating speed, power and stator temperature of the motor, the temperature of a cooling liquid at a motor inlet, the real-time power and temperature of the motor controller and the runningtime of a fan at the highest gear; secondly, calculating a flow demand according to the rotating speed and the power of the motor and the water temperature, correcting the flow demand according to the temperature of a stator, calculating a flow demand according to the power of the motor controller and the water temperature, correcting the flow demand according to the temperature of the motor controller, and taking the larger one of the two corrected values as a target flow demand; then, correcting the target flow demand according to the running time of the fan at the highest gear; and finally, adjusting a water pump to a corresponding rotating speed according to the relationship between the rotating speed and flow of a water pump. The rotating speed of the water pump is dynamically adjusted according to the rotating speed and power of the motor and the power and water temperature of the motor controller, and accuracy and energy conservation are achieved.
Description
Technical field [0001] The present invention relates to the field of cooling technology, in particular to a cooling control method and device of a motor and its controller. Background technique [0002] The cooling of the motor and its controller refers to the generation of heat due to internal losses during operation. The cooling medium cools the motor windings and cores and the power components in the controller to maintain the temperature of each part within the allowable range. Generally, the cooling of the motor and its controller has the following requirements: first, the temperature of the water inlet of the motor and its controller must be less than 65°C; second, the water flow of the motor and its controller must be within the range of 8-12L / min. [0003] At present, the usual control methods for cooling the motor and its controller are: firstly, adjust the speed of the water pump so that the flow rate is within a value between 8-12L / min; secondly, check whether the temper...
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IPC IPC(8): B60K1/00B60L15/20H02K9/19H02K9/06F04D15/00F04D27/00
CPCB60K1/00B60K2001/006B60L15/20F04D15/00F04D15/0066F04D27/004H02K9/06H02K9/19Y02T10/64Y02T10/72
Inventor 石中光牛胜福李国富陈领平戴西槐李浩张孙华
Owner 上海元城汽车技术有限公司