WO2024055185A1

WO2024055185A1 - Power generation system and method

Info

Publication number: WO2024055185A1
Application number: PCT/CN2022/118669
Authority: WO
Inventors: 张至澔
Original assignee: 寰宝绿能股份有限公司; 净利达实业股份有限公司
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2024-03-21

Abstract

A power generation system, comprising: a start-up device; a rotating assembly, which can be started by the start-up device; a power generation assembly, which generates power under the drive of the rotating assembly, so as to generate an alternating current; an alternating-current-to-direct-current conversion circuit, which converts the alternating current into a direct current, wherein the direct current comprises a conversion voltage; a buck circuit, which receives the direct current, down-regulates the conversion voltage and then outputs a charging voltage; a capacitor module, which receives the charging voltage to perform constant-voltage power generation; an electric controller, which is connected to the capacitor module; and an electric motor, which is connected to the electric controller and drives the rotating assembly.

Description

Power generation systems and methods

Technical field

The present invention relates to a power generation system and method, in particular to a mobile power generation system and method.

Background technique

General mobile generators require fuel, such as gasoline, gas, or natural gas. Once the fuel is insufficient, power generation will be unsustainable. It is necessary to provide a more convenient mobile power generation system.

Contents of the invention

One embodiment of the present invention provides a power generation system, including:

a startup device

A rotating component that can be started by the starting device;

A power generation component is driven by the rotating component to generate electricity and generate an alternating current;

An AC-to-DC conversion circuit converts the alternating current into direct current, wherein the direct current includes a conversion voltage;

A voltage reduction circuit receives the direct current, reduces the conversion voltage, and then outputs a charging voltage;

A capacitor module receives the charging voltage to perform constant voltage power generation;

An electric controller connected to the capacitor module;

An electric motor is connected to the electric controller and drives the rotating component.

One embodiment of the present invention provides a power generation method, including:

A starting speed is used as the input speed of one of the rotating components;

The rotating component amplifies the input speed into an output speed;

Use the output speed to generate an alternating current;

Convert the alternating current into direct current;

Use the DC constant voltage to charge a capacitor module;

The capacitor module provides an electric power to drive an electric motor;

The electric motor replaces the starting speed with a fixed speed as the input speed.

Description of drawings

Figure 1 is an embodiment of the present invention, a system schematic diagram of a power generation system.

Figure 2 is a schematic diagram of a rotating assembly according to an embodiment of the present invention.

Figure 3 is an embodiment of the present invention, a flow chart of a power generation method.

illustration:

10 rotating components

11 power generation components

12 AC to DC conversion circuit

13. Buck circuit

14 capacitor module

15 electric controller

16 electric motors

17 start device

20 Rotate the first rotating assembly

21 amplified speed

22 generates alternating current

23 Convert to DC

24 Constant voltage charging

25 drive motor

101 outer ring gear

102 planetary gear

103 center gear

Detailed ways

Referring to Figure 1, in one embodiment, a power generation system includes a rotating component 10, a power generation component 11, an AC-to-DC conversion circuit 12, a buck circuit 13, a capacitor module 14, an electric controller 15, an electric motor 16, and a starting device. 17.

The first rotating component 10, with reference to Figure 2, in one embodiment, includes an outer ring gear 101, five planetary gears 102, and a central gear 103, which can amplify the input speed several times to become the output speed. The radii of the five planetary gears 102 and the sun gear 103 are smaller than that of the outer ring gear 101 . The central gear is arranged at the center of the outer ring gear 101 and meshes with the five planetary gears 102; the five planetary gears 102 mesh with the outer ring gear 101. The outer ring gear 101 drives five planetary gears 102, and the planetary gears 102 drive the sun gear 103. The rotation speed of the central gear 102 can be several times that of the outer ring gear 101, for example, 4 to 8 times.

In one embodiment, the outer ring gear 101, the five planetary gears 102, and the center gear 103 are all helical gears.

In one embodiment, the activating device 17 is, for example, a activating pull plate, and the rotating component 10 starts to rotate after being manually pulled. The rotating component 10 drives the power generation component 11 through the central gear 103, and in one embodiment, can generate three-phase alternating current. The three-phase alternating current is converted into direct current through an AC-to-DC conversion circuit 12, such as a bridge rectifier circuit, and the direct current has a conversion voltage. Because the center gear 103 rotates several times higher than the outer ring gear 101 (or relative to the front wheel of the electric motorcycle), the AC power generated by the generator assembly 11 is rectified into DC power and the converted voltage output is easily It is higher than the charging voltage required for constant voltage charging of the capacitor module 14, so the voltage needs to be lowered subsequently.

After receiving the input direct current, the voltage reducing circuit 13 lowers the conversion voltage, and then outputs the charging voltage required for constant voltage charging of the capacitor module 14 . In one embodiment, the voltage reducing circuit 13 includes a backflow protection circuit (not shown). The backflow protection circuit may include a capacitor and is disposed at the input end of the voltage reducing circuit 13 .

In one embodiment, the capacitor module 14 includes a plurality of supercapacitors connected in series and a power management circuit, which can be charged at a constant voltage. The charged capacitor module can be used as a power source to provide power. Supercapacitors may be electric double layer capacitors, which require a shorter charging time than rechargeable batteries.

In one embodiment, the electric controller 15 can convert the direct current output by the capacitor module 14 into a three-phase sinusoidal alternating current, and then use the three-phase sinusoidal alternating current to drive the electric motor 16 . In one embodiment, the capacitor module 14 uses direct current to drive the electric motor 16 through the electric controller 15 .

In one embodiment, the electric motor 16 drives the rotating component 10 at a fixed rotational speed; the rotational speed of the front wheel is amplified and used to drive the power generation component 11, and then the capacitor module 14 is charged. Part of the stored electricity can continuously provide power to the electric motor, and the other is A portion may be provided to power consuming systems outside this system.

Referring to Figure 3, in one embodiment, a power generation method includes: step 20, rotate the rotating component; step 21, amplify the rotation speed; step 22, generate alternating current; step 23, convert into direct current; step 24, constant voltage charging; step 25 , drive motor.

Steps

20 and 21, in one embodiment, the starting pull plate is manually pulled to generate a starting speed, and the starting speed is used as the input speed of the rotating component to allow the rotating component to start rotating. The rotating assembly includes an outer ring gear, a sun gear is set in the center of the outer ring gear, and five planetary gears are set between the outer ring gear and the sun gear. The outer ring gear meshes with and drives the planetary gear, and the planetary gear meshes with and drives the sun gear. The output speed of the rotating component finally output by the center gear is several times the starting speed, such as 4 to 8 times. Multiple planetary gears can slow down the wear caused by meshing between gears.

Step 22: Use the second rotation speed to drive the power generation component to generate electricity to generate three-phase alternating current.

Step 23: Convert the three-phase alternating current into direct current. In one embodiment, the voltage of the converted direct current is reduced.

Step 24: Charge the capacitor module with the reduced voltage. In one embodiment, the capacitor module includes a plurality of supercapacitors connected in series and a power management circuit, which can be charged at a constant voltage. The charged capacitor module can be used as a power source to provide power, including to subsequent electric motors and other devices. Electricity system. Supercapacitors may be electric double layer capacitors, which require a shorter charging time than rechargeable batteries.

Step 25: The capacitor module provides power to drive the electric motor. In one embodiment, the electric motor drives the rotating component at a fixed rotation speed. This fixed speed can replace the starting speed and amplify it into an output speed to generate electricity.

Claims

A power generation system including:

a startup device

A rotating component that can be started by the starting device;

A power generation component is driven by the rotating component to generate electricity and generate an alternating current;

An AC-to-DC conversion circuit converts the alternating current into direct current, wherein the direct current includes a conversion voltage;

A voltage reduction circuit receives the direct current, reduces the conversion voltage, and then outputs a charging voltage;

A capacitor module receives the charging voltage to perform constant voltage power generation;

An electric controller connected to the capacitor module;

An electric motor is connected to the electric controller and drives the rotating component.
The power generation system of claim 1, wherein the rotating component includes an outer ring gear, five planetary gears, and a sun gear.
The power generation system of claim 2, wherein the outer ring gear drives the planetary gears, and the planetary gears drive the sun gear.
The power generation system of claim 2, wherein the sun gear drives the power generation component.
The power generation system of claim 2, wherein the sun gear is disposed at a center of the outer ring gear.
The power generation system of claim 1, wherein the alternating current is a three-phase alternating current.
The power generation system of claim 1, wherein the voltage reducing circuit includes a backflow protection circuit.
A power generation system as described in claim 1, wherein the capacitor module includes a power management circuit.
The power generation system of claim 1, wherein the capacitor module includes a plurality of supercapacitors connected in series.
The power generation system of claim 1, wherein the starting device includes a starting pull plate.
The power generation system of claim 1, wherein the electric controller controls the electric motor to rotate the rotating component at a fixed speed.
A method of generating electricity, including:

A starting speed is used as the input speed of one of the rotating components;

The rotating component amplifies the input speed into an output speed;

generating an alternating current by utilizing the output rotation speed;

Convert the alternating current into direct current;

Use the DC constant voltage to charge a capacitor module;

The capacitor module provides an electric power to drive an electric motor;

The electric motor replaces the starting speed with a fixed speed as the input speed.
The power generation method of claim 12, further comprising the capacitor module driving an electric motor through an electric controller.
The power generation method of claim 12, wherein the rotating component includes an outer ring gear, five planetary gears, and a sun gear.
The power generation method as claimed in claim 14, wherein the outer ring gear drives the planetary gears, and the planetary gears drive the sun gear.
The power generation method as claimed in claim 14, wherein the sun gear is disposed at a center of the outer ring gear.
The power generation method as claimed in claim 12, wherein the alternating current is a three-phase alternating current.
The power generation method of claim 12, wherein the capacitor module includes a power management circuit.
The power generation method of claim 12, wherein the capacitor module includes a plurality of supercapacitors connected in series.
The power generation method of claim 12, wherein the step of converting the alternating current into direct current includes reducing a voltage of the direct current. .
The power generation method as claimed in claim 12, wherein the starting speed is provided by a starting pull plate.