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Winch electric control

Time: January 11, 2020 10:01:55 source: network ; click: 3288 times
 Winch electric control
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Winch electric control The power factor of the PWM is close to that of the sinusoidal control circuit as well. The control target is located in the rectifier side, which can ensure the voltage of DC bus is constant and keep the same or opposite phase of input voltage and current. Active and reactive power control of current usually needs active front-end technology. The given reactive power and active current are generally input into the DC bus voltage given by Jiang and the actual DC bus voltage controller. At the same time, the incoming line current is at the measured incoming side. Then, the actual active current is compared with the given active current, and the actual reactive current is compared with the given reactive current. The actual active current and reactive current are rotating changes from three-phase to two-phase And coordinate transformation.

Through proportional controller, integral controller and comparison link, the required DC bus voltage is usually generated by PWM modulation and IGBT on-off. The energy generated by the motor usually flows from the grid side to the motor side. The situation of energy flow from the motor side to the grid side is that after the operation of the motor system mechanism, the DC bus voltage is generated with the increase, which makes it conform to the four quadrant operation.
Upper computer monitoring system: using monitoring software and PLC programmable controller to optimize the signal system and upper monitoring system. If a mine adopts dual core 2.5G, 500g hard disk and 4G memory to equip PLC engineering machine, the selected PLC should be able to remote programming and analysis and diagnosis, and set the A4 format color printer and LCD display in the upper monitoring system. With the help of relevant monitoring software, the upper monitoring system can realize its functions smoothly. The applied monitoring software can not only diagnose the operation fault of the hoist, but also display the fault information on the display in time, which can better prompt the driver and protect the hoist.
If the printer installed in the upper monitoring system can not work normally, the monitoring system can display the printer fault, and at the same time, the corresponding records will be saved, which can provide reference for the operator to deal with the fault, which is helpful to solve the fault in time. In addition, the liquid crystal display installed in the system should be able to display multiple pictures at the same time, such as the general situation display of the electric control system of the hoist, the overview display of the high and low voltage power supply system, etc. by recording the actual operation times of the coal mine hoist and some daily fault diagnosis information, it can effectively guide the treatment of similar faults in the future.
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eighteen billion two hundred and thirty-nine million two hundred and eighteen thousand one hundred and eighty-eight

Mobile phone: 18239218188

Address: intersection of Heqi Avenue and Weishi Road, Qibin District, Hebi City

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