Energy-saving power generation device and power generation method
By adopting a self-circulating power generation system in communication base stations, and utilizing a combination of 48V backup batteries, permanent magnet synchronous motors, and reducers, the problems of manual intervention and high energy consumption during base station power outages are solved. This achieves efficient and environmentally friendly self-circulating power supply, ensures continuous and stable power supply, reduces equipment investment and energy consumption, and is compatible with existing communication equipment room equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 李学明
- Filing Date
- 2026-03-19
- Publication Date
- 2026-06-05
AI Technical Summary
Communication base stations require manual intervention to generate electricity during power outages, which is energy-intensive, pollutes the environment, and has low resource utilization. They are also incompatible with existing 48V backup power supplies, resulting in response delays and signal interruptions.
The self-circulating power generation system consists of a 48V backup battery, a permanent magnet synchronous DC motor, a reducer, an AC generator, and an intelligent main/slave switching switch. It achieves cyclic power supply without human intervention through intelligent control. It utilizes the existing 48V backup battery as the initial power supply unit and combines the permanent magnet synchronous motor and reducer for efficient transmission, making it suitable for communication equipment room equipment.
It achieves self-circulating power generation without human intervention, reduces equipment investment costs, improves resource utilization, reduces energy consumption by 30%, ensures continuous and stable power supply, avoids signal interruption, meets environmental protection requirements, has strong adaptability, and has a compact and convenient structure.
Smart Images
Figure CN122159475A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power generation technology, specifically to a self-circulating energy-saving power generation device and method based on a 48V backup battery. Background Technology
[0002] Telecommunications operators face numerous pain points in base station maintenance: photovoltaic base stations lack photovoltaic power supply on cloudy days; when mains-powered base stations experience power outages, maintenance personnel must be dispatched with gasoline generators to generate electricity, resulting in high labor, vehicle, and generator fuel costs; in remote areas, there are delays in power generation response, which can easily lead to base station signal interruptions and damage the operator's reputation; existing gasoline generators emit pollutants, do not meet environmental protection requirements, and have high energy consumption. They are also incompatible with the 48V backup power supply already equipped in the equipment room, failing to achieve efficient resource utilization. The technical solutions have obvious limitations and insufficient compatibility with the existing equipment in the equipment room. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of existing base station power generation during power outages, which rely on manual labor, have high energy consumption, pollute the environment, have slow response, and have low resource utilization. The invention provides an energy-saving device and method that achieves self-circulating power generation based on existing backup batteries without human intervention.
[0004] To achieve the above objectives, the present invention provides the following technical solution: An energy-saving power generation device includes a 48V backup battery, a 48V permanent magnet synchronous DC motor, a reducer, a 380V permanent magnet synchronous three-phase AC generator, a switching power supply, a rectifier module, and an intelligent master-slave switching switch. The 48V backup battery is electrically connected to the input terminal of the intelligent master-slave switching switch, and the first output terminal of the intelligent master-slave switching switch is electrically connected to the 48V permanent magnet synchronous DC motor. The output shaft of the 48V permanent magnet synchronous DC motor is fixedly connected to the input terminal of the reducer, and the output terminal of the reducer is fixedly connected to the input shaft of the 380V permanent magnet synchronous three-phase AC generator. The output terminal of the AC generator is electrically connected to the second input terminal of the intelligent master-slave switching switch, the third output terminal of the intelligent master-slave switching switch is electrically connected to the input terminal of the switching power supply, the output terminal of the switching power supply is electrically connected to the input terminal of the rectifier module, and the output terminal of the rectifier module is electrically connected to the 48V backup battery, forming a circulating power supply loop. The intelligent master-slave switching switch has a built-in voltage detection module for detecting the power supply status and controlling the on / off state of the circulating power supply loop.
[0005] Furthermore, the 48V permanent magnet synchronous DC motor has a power of 3000W and a rated speed of 2000 rpm; the 380V permanent magnet synchronous three-phase AC generator has a rated speed of 500 rpm.
[0006] Furthermore, the intelligent master-slave switching switch has a preset power supply voltage threshold. When the mains power or photovoltaic power supply voltage is detected to be lower than the threshold, the circulating power supply circuit is automatically closed; when the power supply voltage recovers to above the threshold, the circulating power supply circuit is automatically disconnected.
[0007] Furthermore, the power supply voltage threshold is 220V.
[0008] Furthermore, the switching power supply is used to perform voltage adaptation processing on the AC power output from the AC generator, and the rectifier module is used to convert the AC power into DC power adapted to charge the 48V backup battery.
[0009] 6. An energy-saving power generation method, comprising the following steps: (1) The intelligent main and auxiliary switching switch detects the mains power or photovoltaic power supply status of the base station in real time through the built-in voltage detection module; (2) When the power supply voltage is detected to be lower than the preset threshold, the intelligent master-slave switching switch automatically closes the circulating power supply circuit, and the power of the 48V backup battery is transmitted to the 48V permanent magnet synchronous DC motor through the intelligent master-slave switching switch; (3) The 48V permanent magnet synchronous DC motor starts and runs at a speed of 2000 rpm. Its power is reduced to 500 rpm by the reducer and then drives the 380V permanent magnet synchronous three-phase AC generator to generate electricity. (4) The AC power output from the AC generator is transmitted to the second input terminal of the intelligent master-slave switching switch; (5) The intelligent main and auxiliary switching switch transmits AC power to the switching power supply, which then performs voltage adaptation processing on the AC power. (6) The AC power processed by the switching power supply is transmitted to the rectifier module, which converts the AC power into DC power; (7) The rectified DC power is fed back to the 48V backup battery to charge the battery; (8) Repeat steps (2)-(7) to achieve continuous power generation.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) It is highly compatible with existing equipment in the communication equipment room, and its operational stability is significantly improved; (2) Innovatively utilize the existing 48V backup batteries in the communication operator's equipment room as the initial power supply unit, without the need for additional power supply, reducing equipment investment costs and improving resource utilization; (3) Fully automatic control is achieved through intelligent main and auxiliary switching, eliminating the need for manual operation, saving labor costs and vehicle transportation costs, and solving the problem of untimely power generation response in remote areas; (4) The closed-loop power supply mode emits no pollutants and meets the requirements of green environmental protection; (5) The permanent magnet synchronous motor is used in conjunction with the generator and a speed reducer with precise speed matching. The transmission efficiency is as high as 90% or more, and the energy consumption is reduced by more than 30% compared with the traditional gasoline generator. (6) Cyclic charging and power generation are carried out simultaneously to ensure continuous and stable power supply, effectively avoid base station signal interruption, and improve the service quality of operators; (7) The device has a compact structure and is easy to assemble and disassemble. It can be placed directly in the computer room or outdoor cabinet, and is compatible with various communication base station equipment. It has a wide range of applications. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the circuit structure of an energy-saving power generation device according to the present invention. Detailed Implementation
[0012] like Figure 1 As shown, an energy-saving power generation device of the present invention includes a 48V backup battery 1, a 48V permanent magnet synchronous DC motor 2, a reducer 3, a 380V permanent magnet synchronous three-phase AC generator 4, a switching power supply 5, a rectifier module 6, and an intelligent main-slave switching switch 7. The 48V backup battery 1 serves as the initial power supply unit and is fixedly connected to the input terminal of the intelligent main-slave switching switch 7 by wires; at the same time, it receives DC power output from the rectifier module 6 to complete charging, forming the energy storage core of a closed-loop power supply circuit. The input terminal of the 48V permanent magnet synchronous DC motor 2 is electrically connected to the first output terminal of the intelligent main-slave switching switch 7 to obtain stable initial electrical energy; the output shaft is keyed and fixed to the input terminal of the reducer 3 to output high-speed power of 2000 rpm; The input end of the reducer 3 is keyed to the output shaft of the 48V permanent magnet synchronous DC motor 2, and the output end is keyed to the input shaft of the 380V permanent magnet synchronous three-phase AC generator 4; its function is to accurately reduce the high speed of 2000 rpm to 500 rpm to match the suitable speed of the 380V permanent magnet synchronous three-phase AC generator 4, so as to achieve efficient power transmission. The input shaft of the 380V permanent magnet synchronous three-phase AC generator 4 is keyed to the output end of the reducer 3 to receive power at the appropriate speed to generate electricity; the AC output end is electrically connected to the second input end of the intelligent main-slave switching switch 7 to transmit the AC power generated by the generator. The input terminal of the switching power supply 5 is electrically connected to the third output terminal of the intelligent master-slave switching switch 7 to receive AC power and perform voltage adaptation processing; the output terminal is electrically connected to the input terminal of the rectifier module 6 to transmit the adapted electrical energy. The input terminal of the rectifier module 6 is electrically connected to the output terminal of the switching power supply 5 to receive the adapted AC power; the output terminal is electrically connected to the 48V backup battery 1 to convert the AC power into DC power adapted to charge the 48V backup battery 1, thus completing the power conversion process of the cyclic power supply. The intelligent main / supplementary switching switch 7 has a built-in voltage detection module; its input terminal is fixedly connected to the wires of the 48V backup battery 1, its first output terminal is electrically connected to the 48V permanent magnet synchronous DC motor 2, its second input terminal is electrically connected to the AC output terminal of the 380V permanent magnet synchronous three-phase AC generator 4, and its third output terminal is electrically connected to the input terminal of the switching power supply 5; it has a preset power supply voltage threshold, and when the mains power or photovoltaic power supply voltage is detected to be lower than the threshold, it automatically closes the circulating power generation circuit, and automatically disconnects it after the power supply is restored.
[0013] Meanwhile, this invention also protects an energy-saving power generation method based on the above-mentioned device, comprising the following steps: (1) The intelligent main and auxiliary switching switch detects the mains power or photovoltaic power supply status of the base station in real time through the built-in voltage detection module; (2) When the power supply voltage is detected to be lower than the preset threshold (i.e. power supply interruption), the intelligent main and auxiliary switching switch automatically closes the circulating power generation circuit, and the power of the 48V backup battery is transmitted to the 48V permanent magnet synchronous DC motor through the intelligent main and auxiliary switching switch. (3) The 48V permanent magnet synchronous DC motor starts after receiving electrical energy and runs at a speed of 2000 rpm. The power it generates is reduced to 500 rpm by the reducer and then transmitted to the 380V permanent magnet synchronous three-phase AC generator, which drives the generator to run synchronously and generate electricity. (4) The AC power output from the AC generator is transmitted to the second input terminal of the intelligent master-slave switching switch through a wire; (5) The intelligent main and auxiliary switching switch transmits AC power to the switching power supply, which then performs voltage adaptation processing on the AC power. (6) The AC power processed by the switching power supply is transmitted to the rectifier module, which converts the AC power into DC power that is compatible with the 48V backup battery; (7) The rectified DC power is fed back to the 48V backup battery through the wire to charge the battery; (8) Repeat steps (2)-(7) to achieve continuous power generation and provide stable power support for the equipment in the computer room.
[0014] In practice: In this device, the 48V permanent magnet synchronous DC motor is selected with a power of 3000W, which is suitable for the power supply requirements of the computer room due to its high efficiency, energy saving and stable operation. The 380V permanent magnet synchronous three-phase AC generator adopts a low speed design and works with a reducer to achieve precise speed matching and ensure power generation efficiency. The intelligent main and auxiliary switching switch has a preset power supply voltage threshold of 220V (mains standard) and the built-in voltage detection module has a detection accuracy of ±0.5V to ensure accurate judgment of power supply status and a switching response time of ≤1 second, realizing rapid start-up power generation.
[0015] In practical applications, the device is installed in a corner of a communication equipment room or in an outdoor cabinet. All components are assembled using copper core wires and keys, strictly following the logical connections shown in the technical manual and attached drawings: the 48V backup battery is connected to the input terminal of the intelligent master-slave switch; the first output terminal of the intelligent master-slave switch is connected to a 48V permanent magnet synchronous DC motor; the DC motor output shaft is connected to the input terminal of a reducer via a key; the reducer output shaft is connected to the input shaft of an AC generator; the AC generator output terminal is connected to the second input terminal of the intelligent master-slave switch; the third output terminal of the intelligent master-slave switch is connected to a switching power supply; the switching power supply output terminal is connected to a rectifier module; and the rectifier module output terminal is connected to the 48V backup battery.
[0016] The intelligent main / secondary switching switch is connected in parallel with the base station power supply line to monitor the power supply status in real time. When the mains power suddenly fails or the photovoltaic base station is unavailable due to cloudy weather, the intelligent main / secondary switching switch immediately closes the loop, and the 48V backup battery directly supplies power to the DC motor. The motor drives the generator to generate electricity through the reducer. The AC power is transmitted to the switching power supply and rectifier module through the intelligent main / secondary switching switch, and finally back to charge the battery. The entire process requires no manual intervention. During the power generation process, the switching power supply ensures that the AC power is compatible with the input requirements of the rectifier module, and the rectifier module ensures a stable charging current to avoid overcharging and damage to the battery. The cycle power generation can continue until the power supply is restored, effectively ensuring the uninterrupted operation of the base station equipment.
Claims
1. An energy-saving power generation device, characterized in that: The system includes a 48V backup battery, a 48V permanent magnet synchronous DC motor, a speed reducer, a 380V permanent magnet synchronous three-phase AC generator, a switching power supply, a rectifier module, and an intelligent master-slave switching switch. The 48V backup battery is electrically connected to the input terminal of the intelligent master-slave switching switch, and the first output terminal of the intelligent master-slave switching switch is electrically connected to the 48V permanent magnet synchronous DC motor. The output shaft of the 48V permanent magnet synchronous DC motor is fixedly connected to the input terminal of the speed reducer, and the output terminal of the speed reducer is fixedly connected to the input shaft of the 380V permanent magnet synchronous three-phase AC generator. The output terminal of the AC generator is electrically connected to the second input terminal of the intelligent master-slave switching switch, the third output terminal of the intelligent master-slave switching switch is electrically connected to the input terminal of the switching power supply, the output terminal of the switching power supply is electrically connected to the input terminal of the rectifier module, and the output terminal of the rectifier module is electrically connected to the 48V backup battery, forming a circulating power supply loop. The intelligent master-slave switching switch has a built-in voltage detection module for detecting the power supply status and controlling the on / off state of the circulating power supply loop.
2. The energy-saving power generation device according to claim 1, characterized in that, The 48V permanent magnet synchronous DC motor has a power of 3000W and a rated speed of 2000 rpm; the 380V permanent magnet synchronous three-phase AC generator has a rated speed of 500 rpm.
3. The energy-saving power generation device according to claim 1, characterized in that, The intelligent master-slave switching switch has a preset power supply voltage threshold. When the mains power or photovoltaic power supply voltage is detected to be lower than the threshold, the circulating power supply circuit is automatically closed; when the power supply voltage recovers to above the threshold, the circulating power supply circuit is automatically disconnected.
4. The energy-saving power generation device according to claim 3, characterized in that, The power supply voltage threshold is 220V.
5. The energy-saving power generation device according to claim 1, characterized in that, The switching power supply is used to perform voltage adaptation processing on the AC power output from the AC generator, and the rectifier module is used to convert the AC power into DC power adapted to charge the 48V backup battery.
6. An energy-saving power generation method, characterized in that, The energy-saving power generation device according to any one of claims 1-5 includes the following steps: (1) The intelligent main and auxiliary switching switch detects the mains power or photovoltaic power supply status of the base station in real time through the built-in voltage detection module; (2) When the power supply voltage is detected to be lower than the preset threshold, the intelligent master-slave switching switch automatically closes the circulating power supply circuit, and the power of the 48V backup battery is transmitted to the 48V permanent magnet synchronous DC motor through the intelligent master-slave switching switch; (3) The 48V permanent magnet synchronous DC motor starts and runs at a speed of 2000 rpm. Its power is reduced to 500 rpm by the reducer and then drives the 380V permanent magnet synchronous three-phase AC generator to generate electricity. (4) The AC power output from the AC generator is transmitted to the second input terminal of the intelligent master-slave switching switch; (5) The intelligent main and auxiliary switching switch transmits AC power to the switching power supply, which then performs voltage adaptation processing on the AC power. (6) The AC power processed by the switching power supply is transmitted to the rectifier module, which converts the AC power into DC power; (7) The rectified DC power is fed back to the 48V backup battery to charge the battery; (8) Repeat steps (2)-(7) to achieve continuous power generation.