Intelligent pumping unit system and control method
By introducing rectifier circuits, frequency converter circuits, controllers, inverter circuits, and battery packs into the oil pumping unit system, the regenerative energy of the motor is recovered, solving the problem of high energy consumption in existing oil pumping units and reducing system energy consumption.
CN121585028BActive Publication Date: 2026-06-26HEFEI HUASI SYST CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI HUASI SYST CO LTD
- Filing Date
- 2026-01-27
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Existing oil pumping units cannot effectively recover the regenerative energy generated by the motor during operation, resulting in high energy consumption.
Method used
Design an intelligent oil pumping unit system, including a rectifier circuit, a frequency converter circuit, a controller, an inverter circuit, a battery pack, and a protection circuit. By controlling the protection circuit, excess energy from the DC bus is stored during the downstroke of the oil pumping unit, and then fed back or stored to the AC power supply when appropriate, thus realizing energy recovery.
Benefits of technology
Effective recovery of energy generated during motor operation reduces energy consumption of the oil pumping unit system and improves energy utilization.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121585028B_ABST
Abstract
The application discloses an intelligent pumping unit system and a control method. The intelligent pumping unit system comprises N pumping units. The first end of the N pumping units is connected with an alternating current power supply. The second end of the N pumping units is used for supplying power to corresponding motors. The direct current bus of the N pumping units is connected in parallel. At least one of the N pumping units is an intelligent pumping unit. The intelligent pumping unit comprises a rectifier circuit, a frequency conversion circuit, a controller, an inverter circuit, a battery pack and a first protection circuit. In order to recover the energy generated by the motor during operation, the controller is used for controlling the first protection circuit to work when the at least one pumping unit in the N pumping units is in a downstroke, so that the battery pack stores the excess energy of the direct current bus, energy recovery is effectively realized, and the energy consumption of the intelligent pumping unit system is reduced.
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