Power generation system and method

Abstract

A power generation system comprises a starting device; the rotating component can be started by the starting device; the power generation assembly is driven by the rotating assembly to generate power and generate alternating current; the alternating current-direct current conversion circuit is used for converting the alternating current into direct current, and the direct current comprises a conversion voltage; the step-down circuit is used for receiving the direct current, regulating and reducing the conversion voltage and then outputting a charging voltage; the capacitor module is used for receiving the charging voltage to carry out constant-voltage power generation; the electric controller is connected with the capacitor module; and the electric motor is connected with the electric controller and drives the rotating component.

Description

Power generation system and method

[0001] The present invention relates to a power generation system and method, and more particularly to a mobile power generation system and method.

[0002] Generally, mobile generators require fuel, such as gasoline, gas, or natural gas. Once the fuel is insufficient, power generation will be difficult to continue. It is necessary to provide a more convenient mobile power generation system.

[0003]

[0004] One embodiment of the present invention provides a power generation system, comprising:

[0005] A starter device

[0006] a rotating assembly capable of being started by the starting device;

[0007] a power generation component, driven by the rotating component to generate an alternating current;

[0008] an AC-to-DC conversion circuit, converting the AC power into DC power, wherein the DC power includes a conversion voltage;

[0009] a step-down circuit, receiving the DC power, stepping down the conversion voltage, and then outputting a charging voltage;

[0010] a capacitor module, receiving the charging voltage to generate constant voltage electricity;

[0011] an electric controller connected to the capacitor module;

[0012] An electric motor is connected to the electric controller and drives the rotating component.

[0013] One embodiment of the present invention provides a method for generating electricity, comprising:

[0014] Using a starting speed as an input speed of a rotating component;

[0015] The rotating component amplifies the input rotation speed to an output rotation speed;

[0016] generating an alternating current by utilizing the output rotation speed;

[0017] converting the alternating current into direct current;

[0018] Using the direct current to charge a capacitor module at a constant voltage;

[0019] The capacitor module provides power to drive an electric motor;

[0020] The electric motor replaces the starting speed with a fixed speed as the input speed.

[0021] FIG. 1 is a schematic diagram of a power generation system according to an embodiment of the present invention.

[0022] FIG. 2 is a schematic diagram of a rotating assembly according to an embodiment of the present invention.

[0023] FIG. 3 is a flow chart of a power generation method according to an embodiment of the present invention.

[0024] Legend:

[0025] <The present invention>

[0026] 10 Rotating components

[0027] 11 Power generation components

[0028] 12 AC to DC conversion circuit

[0029] 13 Buck circuit

[0030] 14 Capacitor Module

[0031] 15 Electric controller

[0032] 16 Electric motor

[0033] 17 Starter

[0034] 20 Rotate the first rotating component

[0035] 21 Amplification speed

[0036] 22Generate alternating current

[0037] 23 Convert to DC

[0038] 24 Constant voltage charging

[0039] 25 drive motor

[0040] 101 outer ring gear

[0041] 102 Planetary gear

[0042] 103 center gear

[0043] 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 step-down circuit 13 , a capacitor module 14 , an electric controller 15 , an electric motor 16 , and a starting device 17 .

[0044] The first rotating assembly 10, referring to FIG2, in one embodiment, includes an outer ring gear 101, five planetary gears 102, and a central gear 103, which can amplify the input rotation speed several times to become an output rotation speed. The radius of the five planetary gears 102 and the central 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 the five planetary gears 102, and the planetary gears 102 drive the central 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.

[0045] In one embodiment, the outer ring gear 101 , the five planetary gears 102 , and the central gear 103 are all helical gears.

[0046] In one embodiment, the starting device 17, such as a starting pull plate, is manually pulled to allow the rotating component 10 to start rotating. The rotating component 10 drives the power generation component 11 through the central gear 103, and in one embodiment, three-phase AC power can be generated. The three-phase AC power is converted into DC power via an AC-to-DC conversion circuit 12, such as a bridge rectifier circuit, and the DC power has a conversion voltage. Because the rotation speed of the central gear 103 is increased several times relative to the outer ring gear 101 (or relative to the front wheel of the electric locomotive), the conversion voltage output after the AC power generated by the power generation component 11 is rectified into DC power is easily higher than the charging voltage required for constant voltage charging of the capacitor module 14, so the voltage needs to be reduced later.

[0047] After receiving the input DC power, the buck circuit 13 steps down the conversion voltage and then outputs the charging voltage required for constant voltage charging of the capacitor module 14. In one embodiment, the buck circuit 13 includes a reverse current protection circuit (not shown), which may include a capacitor disposed at the input end of the buck circuit 13.

[0048] In one embodiment, the capacitor module 14 includes multiple super capacitors 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. The super capacitor may be a double-layer capacitor, which requires a shorter charging time than a rechargeable battery.

[0049] In one embodiment, the electric controller 15 can convert the DC power output by the capacitor module 14 into three-phase sinusoidal AC power, and then use the three-phase sinusoidal AC power to drive the electric motor 16. In one embodiment, the capacitor module 14 drives the electric motor 16 with DC power through the electric controller 15.

[0050] In one embodiment, the electric motor 16 drives the rotating component 10 at a fixed speed; the speed of the front wheel is amplified 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 part can be provided to the power system outside this system.

[0051] 3 , in one embodiment, a method for generating electricity includes: step 20, rotating a rotating component; step 21, amplifying the rotation speed; step 22, generating alternating current; step 23, converting into direct current; step 24, constant voltage charging; and step 25, driving a motor.

[0052] In 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 start the rotating component to rotate. The rotating component includes an outer ring gear, a central gear is set at the center of the outer ring gear, and 5 planetary gears are set between the outer ring gear and the central gear. The outer ring gear meshes and drives the planetary gears, and the planetary gears mesh and drive the central gear. The output speed of the rotating component finally output by the central gear is several times the starting speed, for example, 4 to 8 times. Multiple planetary gears can reduce the wear caused by meshing between gears.

[0053] Step 22, using the second rotation speed to drive the power generation component to generate three-phase alternating current.

[0054] Step 23, converting the three-phase alternating current into direct current. In one embodiment, the voltage of the converted direct current is reduced.

[0055] Step 24, the capacitor module is charged with the reduced voltage. In one embodiment, the capacitor module includes multiple 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 power systems. The supercapacitor may be a double-layer capacitor, which requires a shorter charging time than a rechargeable battery.

[0056] 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 speed. This fixed speed can replace the starting speed and be amplified to the output speed to generate electricity.

Claims

A power generation system, comprising: A starting device and a rotating assembly that can be started by the starting device; A power generation component is driven by the rotating component to generate an alternating current; an AC-to-DC conversion circuit converts the AC power into a direct current, wherein the direct current includes a conversion voltage; a step-down 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 is connected to the capacitor module; and an electric motor is connected to the electric controller and drives the rotating component. A power generation system as described in claim 1, wherein the rotating component includes an outer ring gear, 5 planetary gears, and a central gear. A power generation system as described in claim 2, wherein the outer ring gear drives the planetary gears, and the planetary gears drive the central gear. A power generation system as described in claim 2, wherein the central gear drives the power generation component. A power generation system as described in claim 2, wherein the central gear is disposed at a center of the outer ring gear. A power generation system as described in claim 1, wherein the alternating current is a three-phase alternating current. A power generation system as described in claim 1, wherein the step-down circuit includes a reverse current protection circuit. A power generation system as described in claim 1, wherein the capacitor module includes a power management circuit. A power generation system as described in claim 1, wherein the capacitor module includes a plurality of supercapacitors connected in series. A power generation system as described in claim 1, wherein the starting device includes a starting pull plate. The power generation system as described in claim 1, wherein the electric controller controls the electric motor to rotate the rotating component at a fixed speed. A method for generating electricity, comprising: Using a starting speed as an input speed of a rotating component; The rotating component amplifies the input rotation speed to an output rotation speed; Using the output speed to generate an alternating current; converting the alternating current into a direct current; A capacitor module is charged by the DC constant voltage; the capacitor module provides 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 as described in claim 12 further includes the capacitor module driving an electric motor through an electric controller. A method for generating electricity as described in claim 12, wherein the rotating component includes an outer ring gear, 5 planetary gears, and a central gear. The power generation method as described in claim 14, wherein the outer ring gear drives the planetary gears, and the planetary gears drive the central gear. A method for generating electricity as described in claim 14, wherein the central gear is disposed at a center of the outer ring gear. A method for generating electricity as described in claim 12, wherein the alternating current is a three-phase alternating current. A method for generating electricity as described in claim 12, wherein the capacitor module includes a power management circuit. The power generation method as described in claim 12, wherein the capacitor module includes a plurality of supercapacitors connected in series. The power generation method as claimed in claim 12, wherein the step of converting the alternating current into a direct current comprises stepping down a voltage of the direct current. A method for generating electricity as described in claim 12, wherein the starting speed is provided by a starting pull plate.

Images