Many users are asking Horizontal screw centrifuge In case of power consumption, once two motors are used, the problem of energy consumption is immediately associated. Therefore, the following analysis is made:
One or more drives in the same electric drive system sometimes generate energy from the motor end and feed it back to the frequency conversion of the drive. This phenomenon is called "regenerative energy". This usually happens when the motor is dragged away, or when the drive motor is braked to provide sufficient tension.
The traditional frequency converter is not designed to feedback the regenerative energy to the three-phase power supply, so all the energy absorbed by the frequency converter from the motor will be stored in the electrolytic capacitor, which will eventually lead to the rise of the bus point voltage of the frequency converter. If the frequency converter is equipped with a braking unit and a braking resistor, the frequency converter can connect the resistor for a short time so that the electric energy is consumed by heat transfer. Of course, it is necessary to fully consider the maximum current capacity, load cycle and rated power consumed by the braking resistor during braking to design a suitable braking unit, and consume energy in a continuous manner to finally maintain the balance of bus voltage. The working mode of this braking unit is actually a kind of energy consumption.
Zhengda Environmental Protection Horizontal snail produced by Equipment Co., Ltd Centrifuge It is driven by two motors. The motor connected to the drum is the main motor when it is working, and the motor connected to the follower is the auxiliary motor when it is always in the generator state due to the differential speed of the drum. With the rapid development of power electronics technology, the performance of frequency converter has been greatly improved, and the scheme of bus joint connection is becoming more and more mature. Zhengda people are working hard to explore the drive scheme of dual motor dual frequency converter, which is a good application. In the design, the main motor and the auxiliary motor are driven by a frequency converter respectively, the DC bus is connected in parallel in an appropriate way, and the dual frequency conversion energy feedback energy-saving frequency modulation control system is used to better solve the problem of recycling the energy generated and regenerated by the auxiliary motor of the horizontal screw centrifuge. Its application is of special significance in today's energy shortage, At the same time, it has achieved good social benefits and brought more benefits to users.
Zhejiang Zhengda Environmental Protection Equipment Co., Ltd.: focusing on Horizontal spiral sedimentation centrifuge, sludge dewatering machine, sludge treatment equipment, centrifugal dewatering machine, sludge dewatering equipment, solid-liquid separation equipment, horizontal spiral centrifuge, centrifuge, mud dewatering machine, mud dewatering equipment, mud treatment equipment, horizontal centrifuge, solid-liquid separator Production, sales and service of various solid-liquid separation equipment. Welcome new and old customers to come for consultation and investigation.
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