Introduction to the Functions of Wenlida Power Electronics Energy Storage Elevator Power Saver
Efficient Energy Recovery and Reuse Function
Wenlida energy storage elevator power saver utilizes advanced bidirectional high-power DC/DC technology, which can accurately capture energy changes during elevator operation. When the elevator is in power generation conditions such as braking, ascending with light load or descending with heavy load, the power saver quickly starts the energy recovery process. At this time, the DC/DC bidirectional converter module plays a key role, transmitting the excess electric energy generated by the elevator traction machine and fed back to the DC bus terminal of the frequency converter to the energy storage module with high conversion efficiency. The energy storage module adopts high-performance supercapacitors, which have excellent power density characteristics and can realize rapid storage of electric energy, effectively retaining the energy that would otherwise be wasted as heat by the braking resistor. Verified by practical tests and numerous project applications, this energy recovery process is efficient and stable, laying a solid foundation for subsequent energy reuse.
Intelligent Power Supply Supplement Function
When the elevator is in energy-consuming operation conditions, such as starting acceleration and ascending with heavy load that require additional electric energy input, the energy storage module of Wenlida power saver starts to release the stored electric energy. The DC/DC bidirectional converter module operates again, accurately and reversely transmitting the direct current stored in the supercapacitors to the DC bus of the elevator traction machine's frequency converter according to the voltage and power requirements of the DC bus. This intelligent power supply supplement process is seamlessly connected, effectively reducing the amount of electricity taken from the power grid by the elevator. Through continuous monitoring and data statistics in different scenarios, after using the power saver, the electricity obtained by the elevator from the power grid is significantly reduced, with a comprehensive power saving rate of up to 35% and a maximum power saving rate of 46.2% in some working conditions, practically saving considerable electricity costs for users.
Excellent Safety Guarantee Function
-
Emergency Leveling Function: In case of emergency power outage such as sudden power failure, phase loss, or fire alarm, Wenlida energy storage elevator power saver transforms into a reliable emergency power supply. The DC/DC bidirectional converter module in the power saver quickly adjusts its working mode, directly switches to the energy-consuming state, and stably outputs the electric energy stored in the energy storage module to the elevator DC bus, driving the elevator to slowly run to the nearest floor at a safe and stable speed and automatically opening the elevator door, ensuring that passengers can escape safely and avoiding panic and potential safety accidents caused by elevator entrapment.
-
Improvement of Operation Stability: In the operation of traditional elevators, if the electric energy generated by power generation is not properly handled, it will cause abnormal increase of the DC bus voltage of the frequency converter, leading to overvoltage faults and affecting the normal operation of the elevator. Wenlida power saver maintains the stability of the DC bus voltage by timely absorbing and storing this part of excess electric energy, fundamentally reducing the probability of such faults. At the same time, the power saver conducts energy interaction from the DC terminal, avoiding harmonic interference that may occur on the AC side to the elevator system, reducing elevator control system faults caused by harmonics and electromagnetic interference to other equipment, and greatly improving the stability and reliability of elevator operation.
Convenient Installation and Maintenance Function
-
Simple Installation Process: The installation of Wenlida energy storage elevator power saver is extremely convenient. It only needs to be simply connected to the DC bus of the elevator frequency converter to complete the main installation steps. This DC terminal connection method is not only easy to operate but also avoids complex wiring and debugging work on the AC side, greatly shortening the installation cycle and reducing the impact on the normal operation of the elevator. Even in the renovation projects of old elevators, the power saver can be installed quickly and efficiently.
-
Maintenance Convenience: The power saver adopts a modular design concept, and various functional modules such as the DC/DC bidirectional converter module and the energy storage module work independently and collaboratively. This enables technicians to quickly locate and replace the problematic module during daily maintenance or fault troubleshooting. At the same time, the power saver has a built-in intelligent monitoring and diagnosis system, which can real-time online monitor the operation status and key parameters of the equipment (such as capacitor health status, converter working temperature, etc.), early warn potential fault risks, further reduce maintenance difficulty and cost, and ensure long-term stable operation of the equipment.
|
021-31587108
Message
