Kinetic power generation unit

Abstract

A kinetic power generation unit (1,2,3) improves the magnetic field of an electric motor (1a) and the magnetic field of a power generator (1b) into a same magnetic field coupling of a same rotor (10), so that the rotors (10) of electric motor (1a) and the power generator (1b) have the same rotational direction, and an exciting winding (12a) of the electric motor (1a) and a field winding (12b) of the power generator (1b) change and transmit phases sequentially to a phase voltage by a DC brushless drive controller (40), so that an interference effect on the counter electromotive force of the electric motor (1a) and the counter-electromotive force of the power generator (1b) is changed to a positive effect.

Description

Power generator set [Technical Field]

[0001] This invention is a power generator set that converts the back electromotive force of the motor and the back reaction force of the generator, which have interference effects, into positive effects. [Background Technology]

[0002] An electric motor, also known as a motor, is an electrical device that converts electrical energy into mechanical energy, which can then be used to generate kinetic energy to drive other devices. Most electric motors are powered by a magnetic field and winding current. A generator, on the other hand, converts the energy stored in various primary energy sources into mechanical energy through a prime mover, and then into electrical energy through a generator. This electrical energy is then transmitted and distributed to various locations via power transmission and distribution networks. Therefore, a generator is a device that converts kinetic energy or other forms of energy into electrical energy. The principles of electric motors and generators are basically the same; the difference lies in the direction of energy conversion. However, during normal operation, an electric motor generates an induced electromotive force (EMF), called a counter-electromotive force (CEMF). This counter-EMF opposes the movement of the conductor that generates the induced EMF, thus causing interference to the electric motor. A generator, during operation, generates a reaction force, which is a negative interference effect for the generator.

[0003] [Summary of the Invention]

[0004] The purpose of this invention is to provide a power generator set that converts the interference effects of the back electromotive force of the electric motor and the back reaction force of the generator into positive effects.

[0005] The main feature of this invention is that the magnetic fields of the motor and the generator are modified to be the same coupled magnetic field and the same rotor, so that the rotors of the motor and the generator rotate in the same direction. Moreover, the excitation coil winding of the motor and the field coil winding of the generator are sequentially commutated and supplied with phase voltage through a DC brushless drive controller. As a result, the interference effect of the back EMF of the motor and the back reaction force of the generator is converted into a positive effect.

[0006] The technical solution of the present invention will be described in detail below:

[0007] A power generator set is characterized in that: the excitation coil winding of a motor and the field coil winding of a generator are arranged in a cross configuration in the slots of a stator to form the same magnetic field; a rotor is disposed inside the stator, which is shared and coaxial with the motor and the generator, so that the rotor of the motor and the generator rotate in the same direction, and the excitation coil winding and the field coil winding are energized in sequence by a DC brushless drive controller to drive the rotor to rotate.

[0008] In the aforementioned power generator set, the input terminal of the DC brushless drive controller is connected to a storage battery; part of the power output terminal of the power generator set is connected to a rectifier to rectify the output AC power before connecting it to the storage battery to charge the storage battery, and the other part is output as AC power supply after passing through a voltage regulator and a transformer; after the rotor rotates, it can output power supply.

[0009] Multiple power generator sets can be installed in the aforementioned configuration, with rotors shared and coaxial.

[0010] In the aforementioned power generator set, the power generator set is connected in a Δ configuration, where the connection point of the coil winding between phases is the output point of the three-phase AC power; the center point of each coil winding is the input point of the phase voltage, thus completing the configuration of the three-phase coil winding.

[0011] In the aforementioned power generator set, the power generator set uses a Y-connection, with the end point of the coil winding at each phase as the power output point; the neutral point of the coil winding is connected by a Δ-connection, with the center point of the Δ-connection as the phase voltage input point, thus completing the configuration of the three-phase coil winding.

[0012] In the aforementioned power generator set, the power generator set is composed of Δ&Y connection lines in parallel. The endpoint of each phase of the Y connection line is connected to the phase-to-phase connection point of the Δ connection line. The phase-to-phase connection point of the Δ connection line is the output point of the three-phase AC power, and the center point of each coil winding of the Δ connection line is the phase voltage input point.

[0013] The advantages and beneficial effects of this invention are as follows: the magnetic fields of the motor and the generator are improved to be the same coupled magnetic field and the same rotor, so that the rotors of the motor and the generator rotate in the same direction. Moreover, the excitation coil winding of the motor and the magnetic field coil winding of the generator are sequentially commutated and supplied with phase voltage through a DC brushless drive controller. Thus, the interference effect of the back EMF of the motor and the back reaction force of the generator is converted into a positive effect. [Attached Image Description]

[0014] Figure 1 shows the configuration of the excitation coil winding and the magnetic field coil winding of the motor and generator having the same coupled magnetic field in an embodiment of the present invention.

[0015] Figure 2 is a block diagram of an embodiment of the present invention.

[0016] Figure 3 shows a block diagram of a combination of multiple power generators in an embodiment of the present invention.

[0017] Figure 4 shows a diagram of the three-phase windings of the power generator set according to an embodiment of the present invention, configured with Δ connection lines.

[0018] Figure 5 shows a diagram of the three-phase windings of the power generator set according to an embodiment of the present invention, configured with Y-connections.

[0019] Figure 6 shows the configuration of the three-phase windings of the power generator set according to an embodiment of the present invention with Δ&Y connection.

[0020] Figure 7 shows the sequential energization diagram of the coil windings by the DC brushless drive controller according to an embodiment of the present invention.

[0021] The labels in the diagram are explained as follows:

[0022] Power generator sets 1, 2, 3; Electric motor 1a; Generator 1b

[0023] Stator 10, Slot 11, Excitation coil winding 12a

[0024] Magnetic field coil winding 12b, rotor 20, battery 30

[0025] DC brushless drive controller 40 Voltage regulator (AVR) 50 Transformer 60

[0026] Rectifier 70

Detailed Implementation Methods

[0027] Please refer to Figure 1. The power generator set 1 of this embodiment of the invention has the functions of a motor 1a and a generator 1b. The power generator set 1 includes a stator 10 and a rotor 20 disposed in the middle of the stator 10. The stator 10 is hollow, and its inner wall is provided with a plurality of circularly arranged slots 11. These slots 11 are arranged in a crisscross pattern to house the excitation coil winding 12a of the motor 1a and the field coil winding 12b of the generator 1b. For example, the odd number of slots 11 houses the excitation coil winding 12a of the motor 1a, and the even number of slots 11 houses the field coil winding 12b of the generator 1b.

[0028] As shown in Figure 2, a storage battery 30 is also provided. The output current of the storage battery 30 is supplied to the excitation coil winding 12a of the motor 1a and the field coil winding 12b of the generator 1b in a sequential phase-switching energizing manner via a DC brushless drive controller 40 (i.e., energizing and de-energizing in phases, as shown in Figure 7). When the excitation coil winding 12a and the field coil winding 12b are energized, a coupled magnetic field is generated inside the stator 10 to drive the rotor 20 to rotate. After the rotor 20 rotates, in addition to outputting power, it also generates an induced electromotive force by rotating in the middle of the excitation coil winding 12a of the motor 1a and the field coil winding 12b of the generator 1b, which cuts magnetic lines of force when the DC brushless drive controller 40 is not powered. The generated power is led out through the terminal block. The generated power can be transformed by a voltage regulator (AVR) 50 and a transformer 60 to output AC power for supply. On the other hand, it can be rectified by a rectifier 70 to output DC power to charge the front battery 30, thereby increasing the battery capacity.

[0029] Because the excitation coil winding 12a of the motor 1a and the field coil winding 12b of the generator 1b are arranged in a cross configuration in the slot 11 of the stator 10, and are sequentially energized by the DC brushless drive controller 40, providing current to the excitation coil winding 12a of the motor 1a and the field coil winding 12b of the generator 1b, they have the same coupled magnetic field. Moreover, the rotors 20 of the motor 1a and the generator 1b are the same and shared, and the rotors 20 of the motor 1a and the generator 1b rotate in the same direction. According to Fleming's left-hand rule (also known as the motor rule) and Fleming's right-hand rule (also known as the engine rule), the interference (negative) effect of the back electromotive force generated after the motor 1a is energized will be a positive effect of the generator 1b; while the interference (negative) effect of the back electromotive force of the generator 1b will be a positive effect of the motor 1a. Therefore, the equation is formed as [x+(-y)]+[y+(-x)]=2(xy), where x is the output of motor 1a, -x is the back electromotive force of motor 1a, y is the power generated by generator 1b, and -y is the reaction force of generator 1b, thus doubling the efficiency of both motor 1a and generator 1b.

[0030] Secondly, as shown in Figure 3, in application, multiple power generator sets 1, 2, and 3 can also be connected in series with the same rotor 20 on the same axis to increase the output and power.

[0031] In this embodiment of the invention, the power generator set 1 takes a three-phase coil winding with a Δ connection as an example, as shown in Figure 4. The connection points a, b, and c between phases of the coil winding are the output points of the three-phase AC power; the center points A, B, and C of each coil winding are the phase voltage input points, thus completing the configuration of the three-phase coil winding.

[0032] In this embodiment of the invention, the power generator set 1 takes a three-phase coil winding with a Y-connection as an example, as shown in Figure 5. The endpoints a, b, and c of each phase of the coil winding are the power output points; the neutral point of the coil winding is connected by a Δ-connection, and the center points A, B, and C of this Δ-connection are the phase voltage input points, thus completing the configuration of the three-phase coil winding.

[0033] In this embodiment of the invention, the power generator set 1 takes a three-phase coil winding with a Δ&Y connection as an example, as shown in Figure 6. A Y connection as shown in Figure 5 is arranged inside the Δ connection shown in Figure 4. The endpoint of each phase of the Y connection is connected to the phase-to-phase connection points a, b, and c of the Δ connection. The phase-to-phase connection points a, b, and c of the Δ connection are the output points of the three-phase AC power, and the center points A, B, and C of each coil winding of the Δ connection are the phase voltage input points, thereby achieving a parallel connection effect.

[0034] The aforementioned DC brushless drive controller 40 sequentially commutates the phase voltage of the coil windings of the power generator set 1. Taking the Y-connection shown in Figure 7 as an example, it energizes A to B, A to C, and B to C in sequence, thereby achieving the effect of sequentially commutating the phase voltage of the coil windings.

Claims

1. A power generator set, characterized in that: The stator has its excitation coil windings of a motor and the field coil windings of a generator arranged in a cross configuration in its slots to form the same magnetic field. A rotor is located inside the stator and is shared and coaxial with the motor and the generator, so that the rotors of the motor and the generator rotate in the same direction. The excitation coil windings and the field coil windings are energized sequentially by a DC brushless drive controller to drive the rotor to rotate.

2. The power generator set according to claim 1, characterized in that: The input terminal of the DC brushless drive controller is connected to a storage battery; part of the power output terminal of the power generator set is connected to a rectifier to rectify the output AC power before connecting it to the storage battery to charge the storage battery, and the other part is output as AC power supply after passing through a voltage regulator and a transformer; after the rotor rotates, it can output power supply.

3. The power generator set according to claim 1 or 2, characterized in that: Multiple units of this power generator set can be installed, configured in a shared rotor, coaxial manner.

4. The power generator set according to claim 1 or 2, characterized in that: The power generator set uses a delta connection, where the connection point between phases of the coil windings is the output point of the three-phase AC power; the center point of each coil winding is the input point of the phase voltage, thus completing the configuration of the three-phase coil windings.

5. The power generator set according to claim 1 or 2, characterized in that: The power generator set uses a Y-connection, with the power output point at the end of each phase of the coil winding; the neutral point of the coil winding is connected by a Δ-connection, with the center point of the Δ-connection serving as the phase voltage input point, thus completing the configuration of the three-phase coil winding.

6. The power generator set according to claim 1 or 2, characterized in that: The power generator set is composed of Δ & Y connection lines in parallel. The endpoint of each phase of the Y connection line is connected to the phase-to-phase connection point of the Δ connection line. The phase-to-phase connection point of the Δ connection line is the output point of the three-phase AC power, and the center point of each coil winding of the Δ connection line is the phase voltage input point.