JP3245909U - flywheel power generation system - Google Patents

Abstract

[Problem] To provide a flywheel power generation system that maintains stable power and power supply. The present invention includes a first power storage battery 11, a first motor unit 20, a second motor unit 30, an engine unit 40, a transmission module 50, a flywheel 60, and a generator 70, the first motor unit, the second motor unit and one of the engine units is connected to the transmission module as necessary to transmit power thereto, so that the transmission module drives a flywheel, and the flywheel drives and operates a generator to generate electric power. Power may be supplied after generation. As a result, depending on the power supply status of the first power storage battery and regular maintenance needs, the first or second motor or fuel engine with a different torque can be selected as the power source for driving the flywheel to generate electricity, and further generating electricity. In maintaining stable output of electric power, the operating efficiency of each motor unit can be improved. [Selection diagram] Figure 1

Description

The present invention relates to a power generation system, and more particularly to a flywheel power generation system.

The importance of a stable power supply power generation system is to ensure continuity and reliable supply of power. Power generation systems need to balance supply and demand to ensure a stable output of electricity, and this is also critical for emergency response. If the power supply is not stable, the system may face problems such as voltage fluctuations and frequency instability, which may further affect the normal operation of the connected power grid and other power equipment. . Stable power supply contributes to maintaining system stability and improving the reliability and safety of the power grid, and promotes the application of clean energy, improves energy efficiency, reduces carbon emissions, and Contribute to realizing natural energy and sustainable development. Therefore, ensuring stable power supply is an important consideration in the design and operation of power generation systems, and directly affects people's lives and economic development.

It is an object of the present invention to provide a flywheel power generation system that improves and advances the prior art.

Another objective of the present invention is that by inputting one of the plurality of connected power sources into the transmission module, the entire system selects the appropriate power source according to the current power supply situation or regular maintenance needs. The object of the present invention is to provide a flywheel power generation system that can maintain stable power supply and power output.

Another objective of the present invention is to ensure that the system stably outputs kinetic energy when different power sources are selected, such as when generating electricity by inputting the torque of a low-torque motor or a high-torque motor to the transmission module. The purpose of the present invention is to provide a flywheel power generation system that can not only maintain energy efficiency but also avoid unnecessary energy consumption by satisfying low load needs with low torque and satisfying high load needs with high torque. .

Another purpose of the present invention is to utilize the fuel engine unit as a reserve power, so that when the first power storage battery cannot be supplied with power, it can continue to operate independently from the power grid so that the flywheel continues to generate electricity. The objective is to provide a flywheel power generation system that can be driven by

Another objective of the present invention is that even though the volume and mass of the flywheel is reduced by using a high-speed flywheel, the same power as a low-speed flywheel can still be maintained, and the power required to drive the flywheel can be reduced. An object of the present invention is to provide a flywheel power generation system that can reduce electric power and has excellent electromechanical conversion efficiency.

Another object of the present invention is to provide a flywheel power generation system that does not significantly affect the power output of the generator when the generator is driven after the rotational speed of the flywheel has been reduced.

To achieve the above and other objects, the present invention provides a flywheel power generation system, which includes a first motor unit, a second motor unit, an engine unit, three rotary power input terminals and one rotary power output terminal. A transmission module having terminals, the rotational power input terminals including a first input terminal, a second input terminal, and a third input terminal, wherein the first input terminal receives torque of the first motor unit by a first clutch. The second input terminal is connected to the torque output shaft of the second motor unit by a second clutch, and the third input terminal is connected to the torque output shaft of the engine unit by a third clutch. A transmission module, a flywheel connected to the output terminal by a one-way bearing, having an output wheel axle, and capable of being rotated by driving the rotary power output terminal, and a generator power-connected to the output wheel axle. . In one embodiment, the first motor unit has a first maximum torque and a first maximum rotation speed, and the second motor unit has a second maximum torque and a second maximum rotation speed, and the second maximum torque is smaller than the first maximum torque, and the second maximum rotation speed is larger than the first maximum rotation speed.

In one embodiment, the vehicle further includes a first power storage battery to which the first motor unit is electrically connected, the second motor unit is electrically connected, and the engine unit is electrically connected.

In one embodiment, the first power storage battery is electrically connected to the first power storage battery, the engine unit, the first clutch, the second clutch, and the third clutch, so that the first power storage battery is electrically connected to the first power storage battery, the engine unit, the first clutch, the second clutch, and the third clutch. The vehicle further includes a second power storage battery that receives the power and supplies power to the engine unit, the first clutch, the second clutch, and the third clutch.

In one embodiment, the voltage of the second power storage battery is lower than that of the first power storage battery, and the voltage of the second power storage battery is lower than that of the first power storage battery, and after the first power storage battery is transformed through the first power converter, the second power storage battery is It is connected to a power storage battery, and after the second power storage battery is transformed through a second power converter, it is connected to the first clutch, the second clutch, and the third clutch.

One embodiment further includes a voltage stabilization unit that is electrically connected to the generator to stabilize the voltage of the electric power generated by the generator and then output it.

In one embodiment, the vehicle further includes a speed reducer that is connected to the output wheel shaft to input rotational power and that is connected to the power generator to drive the power generator.

In one embodiment, the engine unit has a fuel tank and can be operated on fuel.

In one embodiment, the engine unit and the third clutch, and the transmission module and the one-way bearing are each connected by a shaft coupling.

Since the flywheel of the present invention drives the generator after decelerating, it does not significantly affect the power output of the generator. Since the power of the engine unit does not pass through the first motor unit or the second motor unit, friction loss can be reduced. The present invention uses a high-speed flywheel, and as the kinetic energy stored in the flywheel is directly proportional to the square of the rotation speed, the volume and mass of the flywheel can be reduced, and the operating efficiency of the motor can be improved. The same low speed flywheel power output can then be achieved at a relatively lower cost (volume/mass). Since the power of the engine unit of the present invention does not pass through the first motor unit or the second motor unit, a motor with a single output shaft may be used, and the use of an electromagnetic clutch is reduced, resulting in a comparatively low cost. Low point.

FIG. 1 is a system block diagram of a flywheel power generation system according to an embodiment of the present invention. FIG. 2 is a system block diagram of a flywheel power generation system according to another embodiment of the present invention.

In order to make the above and other objects, functions, and features more clearly understandable, some preferred embodiments will be described in detail below with particular reference to the accompanying drawings. Without departing from the spirit of the invention, this application has many embodiments and is not limited to the details specifically described in the embodiments below, and the drawings are not necessarily drawn to scale. rather, they are provided merely to illustrate the embodiments.

FIG. 1 is a system block diagram of a flywheel power generation system according to an embodiment of the present invention. Referring to FIG. 1, the flywheel power generation system of the present embodiment includes a first power storage battery 11, a first motor unit 20, a second motor unit 30, an engine unit 40, a transmission module 50, a flywheel 60, and a speed reducer 65. and a generator 70. The first power storage battery 11 is a power storage device that can store light energy 111, commercial power 112, or other types of natural energy (eg, renewable energy, solar energy, wind energy). The first power storage battery 11 is connected to the first motor unit 20, the second motor unit 30, and the engine unit 40 to supply power.

Preferably, the maximum torque of the first motor unit 20 is greater than the maximum torque of the second motor unit 30, and the maximum rotation speed of the first motor unit 20 is preferably greater than the maximum rotation speed of the second motor unit 30. small.

The transmission module 50 has three rotary power input terminals 500 and one rotary power output terminal 53, and these rotary power input terminals include a first input terminal 51a, a second input terminal 51b, and a third input terminal 51c. , the first input terminal 51a is connected to the torque output shaft of the first motor unit 20 by a first clutch 52a, and the second input terminal 51b is connected to the torque output shaft of the second motor unit 30 by a second clutch 52b. The third input terminal 51c is connected to the torque transmission shaft of the engine unit 40 by a third clutch 52c, and the first motor unit 20, the second motor unit 30, and the engine unit 40 are connected, respectively. . By separating and connecting the first clutch 52a, the second clutch 52b, and the third clutch 52c, one of the connected power sources, ie, the first motor unit 20, the second motor unit 30, or the engine unit 40, is connected. One of them may be input into the transmission module 50 and the rotational power may be outputted via the rotational power output terminal (53).

The power output from the transmission module 50 is transmitted via the one-way bearing 54 to a flywheel 60 supported by a pair of bearing stands 61, and the flywheel 60 is directly connected to the generator 70 to generate electricity. Alternatively, the rotational speed of the rotational torque (shaft) may be reduced by the reducer 65, and then the rotational torque may be input to the generator 70, and the generator 70 inputs rotational power and converts it into electric power. be able to.

FIG. 2 is a system block diagram of a flywheel power generation system according to another embodiment of the present invention. Referring to FIG. 2, the flywheel power generation system of the present embodiment includes the first power storage battery 11, the engine unit 40, the first clutch 52a, the second clutch 52b, and the third clutch. By being electrically connected to the clutch 52c, the first power storage battery 11 receives electric power and supplies the electric power to the engine unit 40, the first clutch 52a, the second clutch 52b, and the third clutch 52c. The power storage device further includes a second power storage battery 12 that supplies power.

Preferably, the voltage of the first power storage battery 11 is higher than the voltage of the second power storage battery 12, and for example, the first power storage battery 11 receives electric power such as commercial power or green power. The second power storage battery 12 supplies power to low-voltage devices, such as the engine unit 40, the first clutch 52a, the second clutch 52b, and the third clutch 52c.

Naturally, since the voltage of the second power storage battery 12 is lower than that of the first power storage battery 11, the voltage of the first power storage battery 11 is transformed via the first power converter 13, and then the voltage of the first power storage battery 11 is It is connected to a second power storage battery 12, and after the second power storage battery 12 is transformed through a second power converter 14, the first clutch 52a, the second clutch 52b, and the third clutch 52c are connected. connected to supply power. For example, the second power storage battery 12 may be electrically connected to the engine unit 40 for electric start.

Further, the first clutch 52a, the second clutch 52b, and the third clutch 52c may be electromagnetic clutches, and the first clutch 52a and the second clutch 52b are each powered by the second power converter 14. However, the third clutch 52c is powered by the second power storage battery 12, thereby contributing to electrically controlling the disengagement or engagement operation of each clutch.

The engine unit 40 may be electrically connected to the second power storage battery 12, and the operation of the engine unit 40 is started by the low voltage power of the second power storage battery 12, and of course, Depending on the need for electric starting of the engine unit 40 employed, in the case of high voltage standards, the engine unit 40 needs to be electrically connected to the first power storage battery 11 to obtain operating power.

The flywheel 60 may be a high-speed flywheel, and is connected by the one-way bearing 54 and driven by the output terminal 53 of the transmission module 50, and the flywheel 60 has an output wheel shaft 62 and the output By power-connecting the wheel set 62 to the generator 70, the torque force of the output wheel set 62 is converted into electric power and then transmitted to the voltage stabilization unit 80, so that the electric power generated by the generator 70 is converted into voltage. The output is output after the output is stabilized, thereby avoiding a surge in which the output of the generator 70 is not stabilized from harming the power consuming device.

In addition, due to the relationship in which the voltage of the power output is directly proportional to the rotation speed, the flywheel 60 reduces the output rotation speed of the flywheel 60 by the reducer 65 that passes through it before being connected to the generator 70, and further reduces the output rotation speed of the flywheel 60. It is connected to the generator 70, which has the advantage that the power output of the generator 70 is not significantly affected when the rotational speed of the flywheel 60 is reduced.

Preferably, the engine unit 40 has a fuel tank and can be operated on fuel in addition to being capable of starting with electric power, so that when the first power storage battery 11 cannot supply power, the engine unit 40 of fuel It is possible to maintain the power generation output by supplying power.

Preferably, the shaft joint to which the engine unit 40 is connected to the third clutch 52c or the shaft joint to which the transmission module 50 is connected to the one-way bearing 54 is a corrugated shaft joint, a magnetic shaft joint, or similar in function. The shaft coupling may be used as a shaft coupling, and by mainly utilizing its characteristics, it is possible to reduce the rattling and instantaneous current value that outputs the power of each motor or engine, and achieve the effect of slow starting.

Preferably, when the present invention is initially started, since the flywheel 60 needs to be started from a stationary state, the first motor unit 20 with relatively high torque is selected and connected to the first clutch 52a. , the transmission module 50 may be driven by the flywheel 60 to generate electricity, and the flywheel 60 may be easily driven to reach a stable rotational speed, and after the rotational speed of the flywheel 60 is stabilized, the corresponding The second clutch 52b may be started, the second motor unit 30 may be connected to the transmission module 50, and the flywheel 60 may generate electricity, and at the same time the first clutch 52a may be released. Of course, if it is necessary to periodically inspect and repair the engine unit 40 to maintain its operation, the engine unit 40 can be maintained by disengaging the first clutch 52a and the second clutch 52b and operating the third clutch 52c. The power transmission module 50 may be connected to drive the flywheel 60 to generate electricity.

Note that the ratio of the rotation speeds of each of the rotational power input terminals and the rotational power transmission terminal of the transmission module 50 may be 1:1, and a torque different from that of each power source itself may be input, or a torque different from that of each power source itself may be input. The rotational speed ratio of the rotational power input terminal and the rotational power transmission terminal may be different, and each power source may be combined with a different torque to generate stable output power.

The invention has been disclosed using the preferred embodiments described above, but not to limit the invention. Those skilled in the art to which the present invention pertains can clearly understand that the present invention is not limited to the details of the exemplary embodiments described above. The embodiments do not limit the present invention, but are merely for explaining the present invention, and the present invention is not based on the above description, but on the scope of the utility model registration claims. The meaning and scope of equivalents of the claims for utility model registration all fall within the scope of the utility model right for this invention.

11 First power storage battery 111 Light energy 112 Commercial power 12 Second power storage battery 13 First power converter 14 Second power converter 20 First motor unit 21 First motor driver 30 Second motor unit 31 Second Motor driver 40 Engine unit 41 Shaft coupling 50 Transmission module 500 Three rotational power input terminals 51a First input terminal 51b Second input terminal 51c Third input terminal 52a First clutch 52b Second clutch 52c Third clutch 53 Rotational power output terminal 54 One-way bearing 55 Shaft coupling 60 Flywheel 61 Bearing stand 62 Output wheel shaft 65 Reducer 70 Generator 80 Voltage stabilization unit

Claims (8)

A flywheel power generation system,
a first motor unit (20);
a second motor unit (30);
An engine unit (40),
A transmission module (50) having three rotary power input terminals (500) and one rotary power output terminal (53), wherein these rotary power input terminals (500) are connected to a first input terminal (51a) and a second rotary power input terminal (51a). The first input terminal (51a) is connected to the torque output shaft of the first motor unit (20) by a first clutch (52a), and the first input terminal (51a) includes an input terminal (51b) and a third input terminal (51c). A second input terminal (51b) is connected to the torque output shaft of the second motor unit (30) by a second clutch (52b), and a third input terminal (51c) is connected to the torque output shaft of the second motor unit (30) by a third clutch (52c). a transmission module (50) connected to the torque output shaft of 40);
a flywheel (60) connected to the rotary power output terminal (53) by a one-way bearing (54), having an output wheel shaft (62), and capable of being rotated by the drive of the rotary power output terminal (53);
a generator (70) power-connected to the output wheel shaft (62);
The first motor unit (20) has a first maximum torque and a first maximum rotation speed, and the second motor unit (30) has a second maximum torque and a second maximum rotation speed, and the second maximum rotation speed. A flywheel power generation system in which the torque is smaller than the first maximum torque, and the second maximum rotation speed is larger than the first maximum rotation speed. a first power storage battery (to which the first motor unit (20) is electrically connected, the second motor unit (30) is electrically connected, and the engine unit (40) is electrically connected; 11) The flywheel power generation system according to claim 1, further comprising: 11). By being electrically connected to the first power storage battery (11), the engine unit (40), the first clutch (52a), the second clutch (52b), and the third clutch (52c). , receives electric power by the first power storage battery (11) and supplies electric power to the engine unit (40), the first clutch (52a), the second clutch (52b), and the third clutch (52c). The flywheel power generation system according to claim 2, further comprising a second power storage battery (12) for supplying power. The voltage of the second power storage battery (12) is lower than that of the first power storage battery (11), and the first power storage battery (11) is connected to the battery via the first power converter (13). The first clutch (52a) is connected to the second power storage battery (12) after the voltage is transformed, and the first clutch (52a) ), the second clutch (52b), and the third clutch (52c). The power generator according to claim 1, further comprising a voltage stabilization unit (80) that is electrically connected to the generator (70) to stabilize the voltage of the electric power generated by the generator (70) and then output the voltage. Flywheel power generation system. A claim further comprising a speed reducer (65) connected to the output wheel shaft (62) to input rotational power, and further connected to the power generator (70) to drive the power generator (70). The flywheel power generation system according to item 1. A flywheel power generation system according to claim 1, wherein the engine unit (40) has a fuel tank and can be operated on fuel. The flywheel according to claim 1, wherein the engine unit (40) and the third clutch (52c), and the transmission module (50) and the one-way bearing (54) are connected by shaft couplings (41, 55), respectively. power generation system.

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