CN-224231875-U - Monitoring system for elevator energy storage device

Abstract

The utility model discloses a monitoring system for an elevator energy storage device, which is characterized in that three-phase alternating current is connected into an elevator frequency converter, three-phase alternating current with adjustable frequency is input into an elevator motor after the three-phase alternating current is rectified, filtered and inverted in the elevator frequency converter, an elevator energy storage unit is connected onto a direct current bus of the elevator frequency converter, a switch assembly is connected between the elevator energy storage unit and the elevator frequency converter, the elevator energy storage unit is opened and closed through the switch assembly, a 4G monitoring unit comprises a Hall sensor, an intelligent internet of things meter and a 4G transmitting module, the Hall sensor is used for collecting the current of the low-voltage side of the elevator energy storage unit and converting the current into standard transmission signals of 4-20 mA, the intelligent internet of things meter is used for measuring the voltage of the high-voltage side and the low-voltage side of the elevator energy storage unit and receiving the standard signals from the Hall sensor, and the 4G transmitting module is used for transmitting the voltage and current data measured by the intelligent internet of things meter to an upper computer.

Inventors

• He Zecong
• YANG YING
• WANG JUNWEI
• WANG LEI
• LI YAN
• ZHANG HONGYU
• CHENG NANNAN
• DING ZIYU
• Ren Xiangteng
• XU RUINAN
• Kou Sikai

Assignees

• 河南省特种设备检验技术研究院有限公司
• 河南省特种设备检验技术研究院

Dates

Publication Date

20260512

Application Date

20250519

Claims (5)

1. 1. A monitoring system for an elevator energy storage device, comprising: The elevator comprises an elevator frequency converter, an elevator motor, an elevator energy storage unit, a switch assembly and a 4G monitoring unit; three-phase alternating current is connected into the elevator frequency converter, and the three-phase alternating current with adjustable frequency is input into the elevator motor after the three-phase alternating current is rectified, filtered and inverted in the elevator frequency converter; The elevator energy storage unit is connected to a direct current bus of the elevator frequency converter, the switch assembly is connected between the elevator energy storage unit and the elevator frequency converter, and the elevator energy storage unit is turned on and off through the switch assembly; the 4G monitoring unit comprises a Hall sensor, an intelligent internet of things meter and a 4G transmitting module which are connected in sequence; The Hall sensor is used for collecting the current of the low-voltage side of the elevator energy storage unit and converting the current into a standard transmission signal of 4-20 mA; the intelligent internet of things meter is used for measuring the voltage of the high-voltage side and the low-voltage side of the elevator energy storage unit and the current data of the low-voltage side and receiving standard signals from the Hall sensor; The 4G transmitting module is used for transmitting voltage and current data measured by the intelligent internet of things meter to an upper computer.
2. 2. The monitoring system for an elevator energy storage device of claim 1, wherein the switch assembly comprises a transformer, a diode, and a high voltage relay; And taking an alternating current to pass through the transformer, and then passing through one diode to supply power to the coil of the high-voltage relay.
3. 3. The monitoring system for an elevator energy storage device of claim 1, wherein the elevator energy storage unit comprises a bi-directional DC-DC converter and a supercapacitor module; The elevator inverter bus is connected to the switch assembly and then to the high voltage side of the bi-directional DC-DC converter, which is connected to the supercapacitor module through a low voltage switch.
4. 4. The monitoring system for an elevator energy storage device of claim 1, wherein the 4G transmission module is connected to the intelligent internet of things via 485 communication.
5. 5. The monitoring system for an elevator energy storage device of claim 1, wherein the 4G monitoring unit further comprises a switching power supply connected to the 4G transmission module for powering the 4G transmission module.

Description

Monitoring system for elevator energy storage device Technical Field The utility model relates to the technical field of elevator energy storage monitoring, in particular to a monitoring system for an elevator energy storage device. Background The regenerative energy recovering, storing and reutilizing technology for elevator includes storing the regenerated electric energy produced during braking operation of elevator tractor in the energy accumulator via designed recovering circuit, and releasing the electric energy stored in the energy accumulator to DC bus for use together with the rectified electric energy in driving the elevator tractor. Currently, in the prior art, elevator energy storage units have been commonly utilized to store regenerated electrical energy. But lack the monitored control system to elevator energy storage unit data, can't in time grasp elevator energy storage unit information. Disclosure of utility model The embodiment of the utility model aims to provide a monitoring system for an elevator energy storage device, which is used for uploading energy-saving data of an elevator energy storage unit in real time through a 4G monitoring unit so as to grasp information of the elevator energy storage unit in time. In order to solve the technical problems, the utility model adopts the following technical scheme: The embodiment of the utility model provides a monitoring system for an elevator energy storage device, which comprises an elevator frequency converter, an elevator motor, an elevator energy storage unit, a switch assembly and a 4G monitoring unit, wherein the elevator frequency converter is connected with the elevator motor; three-phase alternating current is connected into the elevator frequency converter, and the three-phase alternating current with adjustable frequency is input into the elevator motor after the three-phase alternating current is rectified, filtered and inverted in the elevator frequency converter; The elevator energy storage unit is connected to a direct current bus of the elevator frequency converter, the switch assembly is connected between the elevator energy storage unit and the elevator frequency converter, and the elevator energy storage unit is turned on and off through the switch assembly; the 4G monitoring unit comprises a Hall sensor, an intelligent internet of things meter and a 4G transmitting module which are connected in sequence; The Hall sensor is used for collecting the current of the low-voltage side of the elevator energy storage unit and converting the current into a standard transmission signal of 4-20 mA; the intelligent internet of things meter is used for measuring the voltage of the high-voltage side and the low-voltage side of the elevator energy storage unit and the current data of the low-voltage side and receiving standard signals from the Hall sensor; The 4G transmitting module is used for transmitting voltage and current data measured by the intelligent internet of things meter to an upper computer. In some embodiments, the switch assembly includes a transformer, a diode, and a high voltage relay; And taking an alternating current to pass through the transformer, and then passing through one diode to supply power to the coil of the high-voltage relay. In some embodiments, the elevator energy storage unit includes a bi-directional DC-DC converter and a supercapacitor module; The elevator inverter bus is connected to the switch assembly and then to the high voltage side of the bi-directional DC-DC converter, which is connected to the supercapacitor module through a low voltage switch. In some embodiments, the 4G transmitting module is connected to the smart internet of things via 485 communication. In some embodiments, the 4G monitoring unit further comprises a switching power supply connected with the 4G transmitting module for supplying power to the 4G transmitting module. According to the monitoring system for the elevator energy storage device, provided by the utility model, the charge and discharge current of the super capacitor module in the elevator energy storage unit and the voltage of the direct current bus end and the super capacitor module end can be acquired in real time through the Hall sensor and the intelligent internet of things meter, and the data can be read remotely in an upper computer through the 4G transmitting module. According to the monitoring system for the elevator energy storage device, the operation condition of the elevator energy storage unit is monitored in real time through the 4G monitoring unit, and the energy recovery and re-release utilization conditions are analyzed, so that maintenance early warning is carried out on the elevator energy storage unit elevator energy saving system. The 4G monitoring unit is used as an information management platform of the elevator energy storage unit and is matched with the Hall sensor, the intelligent internet of things meter and the 4G transmitting module to c