Rail Transit Vehicle and System and Method for Braking Resistor Fan Control Thereof
A technology for rail transit vehicles and braking resistors, applied in the field of rail transit, can solve problems such as noise pollution and energy waste, and achieve the effects of reducing noise, energy consumption, volume and weight
Active Publication Date: 2017-01-25
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0006] In view of this, the first object of the present invention is to provide a braking resistor fan control system, which can effectively solve the problems of energy waste and noise pollution caused by the braking resistor fan rotating at a constant speed. The second object of the present invention is to provide a method for controlling the braking resistor fan using the above-mentioned braking resistor fan control system, and the third object of the present invention is to provide a rail transit vehicle including the above-mentioned braking resistor fan control system
Method used
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Embodiment approach
[0066] In the second specific implementation manner, the braking resistor fan control method provided by the present invention includes the following steps:
[0067] Step S401: Obtain the temperature T of the braking resistor.
[0068] Step S402: Compare the temperature T of the braking resistor with the second preset temperature T1, if the temperature T of the braking resistor is lower than the second preset temperature T1, set the fan to disconnect from the power supply; if the temperature T of the braking resistor is greater than the second preset temperature T1 If the temperature T1 is preset, step S403 is executed.
[0069] Step S403: Compare the temperature T of the braking resistor with the first preset temperature T0, if the temperature T of the braking resistor is lower than the first preset temperature T0, set the connection mode of the fan and the power supply to the low-speed connection mode, if the braking resistor The temperature T is greater than the first pres...
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The invention discloses a brake resistor blower control system for a rail transit vehicle. The brake resistor blower control system comprises a temperature measuring device, a contactor group and a control unit, wherein the temperature measuring device is used for obtaining the temperature of a brake resistor and sending temperature signals to the control unit; when the contactor group is positioned in a first position, a blower is connected with a power supply in a high-speed connection way; when the contactor group is positioned in a second position, the blower is connected with the power supply in a low-speed connection way; the control unit is used for setting the contactor group; when the temperature of the brake resistor is lower than first preset temperature, the contactor group is set in the second position; when the temperature of the brake resistor is higher than the first preset temperature, the contactor group is set in the first position. By adopting the brake resistor blower control system, energy consumption can be reduced, and noise of the brake resister blower can be reduced. The invention further discloses a method using the brake resistor blower control system, and a rail transit vehicle comprising the brake resister blower control system.
Description
technical field [0001] The present invention relates to the technical field of rail transit, and more specifically, to a method and system for controlling a braking resistor fan, and also relates to a rail transit vehicle including the above-mentioned braking resistor fan control system. Background technique [0002] Braking resistors are widely used in electric locomotives, urban rail vehicles, various EMUs and mechanical systems for rapid stop of motors controlled by frequency conversion, to help the motor convert the regenerative electric energy generated by the rapid stop into heat energy. The generation of heat energy makes the temperature of the braking resistor rise. Normally, the brake resistor is cooled by the brake resistor fan. When the braking resistor flows a large current to generate a large amount of heat, the braking resistor fan generates low pressure through rotation, prompting air to flow through the braking resistor, and then cool down the braking resist...
Claims
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IPC IPC(8): F04D27/00
CPCF04D27/004
Inventor 刘斌李耘茏陈三猛杨颖
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD