KR102311258B1 - digital power generation automatic voltage regulator system - Google Patents

Abstract

In order to be miniaturized and to minimize energy loss due to heat generation, the present invention relates to a rotor part which is rotatably arranged in power connection to a driving body, a permanent magnet part is provided on one side, and an excitation coil in which an inductive magnetic field is formed when the rotor part rotates. a power generation unit including a stator unit; a digital automatic voltage regulator connected to the circuit to adjust the output voltage generated from the excitation coil so that the final output voltage is selectively variable and converted; And it provides a digital power generation automatic voltage control system including a circuit connected to the excitation coil to pass the voltage output within a preset limit range so that the final output voltage is substantially uniformly output.

Description

Digital power generation automatic voltage regulator system

The present invention relates to a digital power generation automatic voltage control system, and more particularly, to a digital power generation automatic voltage control system that automatically adjusts a generated output voltage and minimizes energy loss due to heat generation.

In general, automobiles use gasoline or diesel as fuel. Gasoline and diesel not only emit harmful substances and cause air pollution, but also crude oil for producing gasoline and diesel fuel is exhausted, so the development of alternative energy to replace it is difficult. it is necessary. Recently, each industry is rushing to develop alternative energy, and as an alternative to this, electric vehicles operated through electric energy are being developed.

The electric vehicle refers to a vehicle operated using electricity, and may be largely divided into a battery powered electric vehicle and a hybrid electric vehicle.

Here, the pure electric vehicle is a vehicle that runs using only electricity without using fossil fuel, and is generally referred to as an electric vehicle. And, the hybrid electric vehicle refers to a vehicle that runs using electricity and fossil fuels.

The electric vehicle is provided with a battery for supplying electricity for driving. In particular, a pure electric vehicle and a plug-in type hybrid electric vehicle charge a battery using power supplied from an external power source, and drive an electric motor using the electric power charged in the battery.

In addition, a vehicle that does not have an engine and operates only with electric energy stored in a pure battery, such as the electric vehicle, can be driven only by charging the battery when the energy of the battery is discharged. However, compared to the spread of the electric vehicle, there is a disadvantage in that the charging place is limited as the infrastructure for the electric vehicle, such as the installation of a charging station supporting electric charging, does not reach it.

Here, the driver can charge power to the battery of the electric vehicle by using the emergency power supply device provided in the towing vehicle, such as a lorry, which is urgently dispatched in a situation in which unexpected battery discharge or charging is required while the electric vehicle is being driven. have.

In this power supply device, as the rotor of the generator connected to the engine of the towing vehicle rotates at a high speed at tens of thousands of revolutions per minute (RPM), power that can be supplied to the electric vehicle can be produced. At this time, the AC voltage produced as the rotor is rotated may be converted into a DC voltage through a rectifier and supplied to the electric vehicle or stored in an auxiliary battery.

Here, as the auxiliary battery, a nickel-based battery such as nickel-cadmium or nickel-metal hydride is mainly used, but a lithium ion battery having a high energy density is mainly used as the demand for a high-performance automobile battery increases in recent years.

However, if the lithium ion-based auxiliary battery is overheated by overloading the lithium-ion-based auxiliary battery due to excessive supply of power above the rated voltage, generation of overcurrent, or discharging due to low voltage, safety accidents such as fire are highly likely to occur. There was a problem that it was difficult to reuse.

On the other hand, the conventional power generation system of a small generator is composed of a small generator and a power generator for controlling the small generator. Here, the control unit of the power generator drives the RST waveform output during power generation using the TR control phase control method through the photocoupler.

However, there is a problem in that there is an error in the control method of the TR element base voltage due to the deviation of the peripheral circuit element and the power supply noise. That is, there is a problem in that the efficiency of the control is reduced because the noise temporarily generated on the RST is also recognized as a signal during power generation through the generator.

In addition, the control method of the small generator control unit is an AC-DC rectification method, which is difficult to miniaturize due to its complicated structure and high in manufacturing cost. There are the TRANS method and the half-wave rectification method, which are proportional to the size multiple but have low power generation efficiency.

However, there is a problem in that it is difficult to use the transformer method and the SMPS method due to the size limitation of the small generator.

In order to solve this problem, the generator can be manufactured by applying a half-wave rectification method that allows the miniaturization of the circuit to the small generator and has a low manufacturing cost.

However, in the generator to which the half-wave rectification method is applied, the power generation efficiency is reduced as the output voltage is half-wave rectified, and the heat generated to control the output voltage for noise correction causes serious damage to the element, significantly lowering durability and generating heat. As a result, there was a problem in that power was lost and energy efficiency was lowered.

Korean Patent Publication No. 10-2002-0042994

In order to solve the above problems, an object of the present invention is to provide a digital power generation automatic voltage control system that is miniaturized and minimizes energy loss due to heat while automatically adjusting the generated output voltage.

In order to solve the above problems, the present invention provides a rotor part which is rotatably arranged in power connection to a driving body, a permanent magnet part is provided on one side, and a stator part wound with an excitation coil in which an induction magnetic field is formed when the rotor part rotates. power generation unit including; a digital automatic voltage regulator connected to the circuit to adjust the output voltage generated from the excitation coil so that the final output voltage is selectively variable and converted; a digital output control unit connected to the excitation coil and passing a voltage output within a preset limit range so that the final output voltage is substantially uniformly output; and a failure detection unit for automatically determining whether the zero-crossing detection unit of the power generation unit, the digital automatic voltage regulator, and the digital output control unit has failed, wherein the failure detection unit includes the zero-crossing signal for a predetermined time by the zero-crossing detection unit. Transmits a first failure signal when no sense is detected, and transmits a second failure signal when the voltage measured by the input detection unit circuit connected to the excitation coil is not detected, and transmits a second failure signal to the output detection unit circuit connected to the output terminal of the digital automatic voltage regulator When the voltage measured by the controller is not detected, the third failure signal is transmitted, and when the voltage measured by the output detection unit is different from the final output voltage and the output target value set in the operation unit for the operation of the output mode, the fourth failure signal is transmitted. , The first failure signal, the second failure signal, the third failure signal and the fourth failure signal are generated as mutually different notification signals by the notification means when each failure signal is generated. provide the system.

Here, the digital automatic voltage regulator is a circuit connected to the input sensing unit and the output terminal of the input sensing unit to selectively increase the output value of the AC voltage generated by the excitation coil, and a circuit at the output terminal of the input sensing unit. An output voltage control unit including a voltage drop transformer connected to selectively decrease an output value of the AC voltage generated by the excitation coil, and a circuit connected to an output terminal of the input sensing unit to selectively convert the AC voltage generated by the excitation coil to direct current It is preferable to include a rectifying unit for converting the voltage and the output sensing unit.

In addition, the digital output control unit is circuit-connected to the excitation coil, the zero-crossing detection unit for real-time detection of a zero-crossing signal when an AC voltage is generated from the excitation coil, and a circuit connected between the zero-crossing detection unit and the rectifying unit, It is preferable to include a limit setting unit for substantially blocking noise by adjusting the voltage frequency when the phase difference of the crossing signal deviates from the preset value in real time.

And, a digital signal processing unit circuit connected to the digital output control unit and connected to an operation unit for operating an output voltage and an output mode, and a circuit connected to the digital signal processing unit, the output voltage output from the output terminal of the digital automatic voltage regulator Further comprising a display unit for displaying, wherein the digital signal processing unit applies a first operation signal to the digital automatic voltage regulator so that the output voltage is proportional to the number of revolutions per hour of the power generation unit in an automatic mode, and the rotation per hour of the power generation unit in a setting mode A second operation signal is applied to the digital automatic voltage regulator so that the output voltage is maintained at a preset value regardless of the number, and a third operation signal is applied to the digital automatic voltage regulator so that the output voltage is inversely proportional to the number of revolutions per hour of the generator in the down mode. It is preferable to apply an operation signal.

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Through the above solution means, the present invention provides the following effects.

First, when the phase difference of the zero-crossing signal detected when an AC voltage is generated in the excitation coil, the voltage frequency is adjusted in real time when the preset value is deviating from the preset value, so that the noise is substantially removed and the voltage amplitude range generated in the excitation coil is automatically adjusted through the digital automatic voltage regulator. The quality of the final output voltage can be improved by providing a synergistic effect that is tuned.

Second, unlike the prior art, in which the RPM range was limited due to overload during engine overspeed, the voltage generated through the power generation unit regardless of the rotational speed of the driving body is corrected through the voltage addition inverter unit and the voltage drop transformer unit to obtain the final output voltage. It can be freely adjusted digitally and can be used in the full range RPM, so the versatility can be significantly improved.

Third, the phase of the final output voltage is substantially uniform as noise that is naturally generated due to a cause such as arrangement deviation of circuit elements or power characteristics is detected and blocked in real time by a digital microcomputer method through a digital output controller circuit connected to the excitation coil. Therefore, the reliability of the product can be significantly improved.

Fourth, as the voltage output generated from the excitation coil is digitally controlled in real time through the digital automatic voltage regulator, the final output voltage value is output substantially linearly and continuously, improving product reliability and minimizing energy loss due to heat generation due to load Therefore, energy efficiency can be significantly improved.

Fifth, since the fault detection unit automatically determines whether the power generation unit, rectifier unit, measurement unit, digital automatic voltage regulator and digital output control unit are faulty in sequence and transmits various fault signals, the user can easily check the area where the fault occurs and work convenience is improved. can be significantly improved.

Sixth, as the control method of the digital output control unit is changed to the AC-DC constant voltage method instead of the half-wave method, heat generation is reduced and malfunctions due to noise are minimized. can be significantly improved.

Seventh, since the power generation unit, the digital output control unit, and the digital automatic voltage regulator are configured as a single system, the use efficiency of the product manufactured by applying it and the economic efficiency according to the cost reduction can be improved.

1 is a block diagram showing a digital power generation automatic voltage control system according to an embodiment of the present invention.
Figure 2 is a graph showing the control state of the digital power generation automatic voltage control system according to an embodiment of the present invention.
3 is a flowchart illustrating a control method of a failure detection unit in a digital power generation automatic voltage control system according to an embodiment of the present invention.

Hereinafter, a digital power generation automatic voltage control system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a digital power generation automatic voltage adjustment system according to an embodiment of the present invention, and FIG. 2 is a graph showing a control state of the digital power generation automatic voltage adjustment system according to an embodiment of the present invention. And, FIG. 3 is a flowchart illustrating a control method of a failure detection unit in a digital power generation automatic voltage control system according to an embodiment of the present invention.

1 to 3 , the digital power generation automatic voltage control system 500 according to an embodiment of the present invention includes a power generation unit 200 , a digital automatic voltage regulator 180 and a digital output control unit 70 . It is preferable to include

Here, the digital power generation automatic voltage control system 500 is preferably understood as a concept encompassing a miniaturized power generation device and a power generation system that are connected to a vehicle or ship engine, an emergency power charging vehicle, and the like to produce power. In addition, the digital signal processing unit 61, the digital automatic voltage regulator 180, and the digital output control unit 70 are provided as a single microcomputer, but it is preferable to understand that they are divided for different functions.

Meanwhile, referring to FIG. 1 , the power generation unit 200 preferably includes a rotor unit 20 and a stator unit 30 . At this time, in an embodiment of the present invention, the case where the power generation unit 200 is provided in an inner rotor type is illustrated and described as an example, but is not limited thereto.

In addition, it is preferable that the rotor unit 20 is provided to be power-connected to the driving body 10 provided as an engine of a vehicle or a ship. In detail, the driving body 10 is preferably provided to provide a driving force to the rotor unit 20 as it rotates. In this case, the driving body 10 is preferably understood as an engine device provided in a vehicle or a ship, and the driving body 10 may be provided as an engine device installed in a power supply vehicle. Here, as the driving body 10 is power-connected to the rotating shaft of the rotor unit 20 , the driving force of the driving body 10 may be converted into the rotating force of the rotating shaft.

In addition, it is preferable that the rotor part 20 includes a permanent magnet part 23 . In detail, the yoke body part provided for the permanent magnet part 23 to be disposed on the rotor part 20 is provided in a hollow shape surrounding one side of the outer periphery of the rotation shaft part, and may be provided to rotate integrally when the rotation shaft part rotates. . Here, on the outer periphery of the yoke body part, the permanent magnet part 23 and a tapered fixing part provided to fix the permanent magnet part 23 to the yoke body part may be alternately arranged.

In addition, it is preferable that the core part of the stator part 30 is provided in a hollow shape and is disposed on the radially outer side of the rotor part 20 . Here, it is preferable that the core part surrounds the outer periphery of the permanent magnet part 23 of the rotor part 20 , and is disposed with a predetermined separation distance from each other with the rotor part 20 .

In addition, it is preferable that the core part surrounds the outer periphery of the permanent magnet part 23 and the tapered fixing part. Here, the axial length of the core part is preferably formed to correspond to the axial length of the rotor part 20 including the permanent magnet part 23 and the tapered fixing part. In addition, it is preferable that the inner diameter of the core part exceeds the outer diameter of the rotor part 20 .

In addition, the excitation coil 31 is preferably wound in the slot of the core part so that an induction magnetic field is formed as the rotor part 20 rotates. At this time, the excitation coil 31 is most preferably wound as a three-phase coil, but is not limited thereto. In addition, it is preferable that the slot is recessed radially outward along the circumferential direction on the inner periphery of the bobbin. Accordingly, an inductive magnetic field generated between the permanent magnet unit 23 and the excitation coil 31 may be selectively formed.

In addition, as the rotor part 20 is interlocked with the driving body 10 and rotates corresponding to the rotational speed of the driving body 10 , an AC voltage is generated in the excitation coil 31 of the stator part 30 . It is preferable to understand

In addition, the stator part 30 includes a first cover part and a second cover part, and the first cover part and the second cover part are respectively disposed on both sides in the axial direction of the core part and are coupled to each other. In detail, it is preferable that the first cover part is disposed on one end side of the core part, is provided in a cylindrical shape with one side open, and has an outer diameter corresponding to the outer diameter of the core part. In addition, it is preferable that the second cover part is disposed on the other end side of the core part, is provided in a cylindrical shape with one side open, and has an outer diameter corresponding to the outer diameter of the core part. Here, the second cover part is provided in a hollow shape, the inner diameter may be formed to be slightly larger than the outer diameter of one end of the rotating shaft part. In this case, in some cases, a device such as a bearing may be further provided between the inner periphery of the second cover and one end of the rotating shaft. Accordingly, the rotor unit 20 interlocked with the driving body 10 may be disposed inside the stator unit 30 including the core unit, the first cover unit, and the second cover unit and rotated. .

On the other hand, referring to FIG. 1 , the digital output control unit 70 is circuit-connected to the excitation coil 31 and is provided to pass only a voltage output in a preset limit range so that the final output voltage is substantially uniformly output. This is preferable. At this time, the preset limit range means a preset voltage frequency range for stably driving the charging object when the electric power generated by the excitation coil 31 is supplied to the charging object, and the voltage frequency deviating from the limit range It is desirable to understand that is defined as noise. For example, the noise can be understood as a state in which the voltage frequency value is significantly lowered when compared with the voltage frequency output from the excitation coil 31 on average.

Here, the digital output control unit 70 is circuit-connected between the excitation coil 31 and the digital automatic voltage regulator 180, and detects a zero-crossing signal when an AC voltage is generated from the excitation coil 31 in real time. It is preferable to include a zero-crossing detection unit 71 .

At this time, the zero-crossing detection unit 71 is most preferably provided as a microprocessor provided to monitor the zero-crossing signal generated in units of frequency in real-time as AC power is generated in the excitation coil 31, or It may be provided as a circuit. That is, the zero-crossing detecting unit 71 is preferably provided to analyze the input waveform input from the excitation coil 31 to the zero-crossing detecting unit 71 in real time.

Here, the zero-crossing signal is a signal generated when AC power is applied and can be sensed at a point where the AC voltage becomes 0V when the AC voltage is switched from positive to negative and negative to positive, and is generated at a cycle corresponding to the frequency of the AC power. can Alternatively, the zero-crossing signal may be detected by calculating the phase timing between the maximum and minimum amplitudes of the AC voltage using a microcomputer method.

In addition, the digital output control unit 70 is circuit-connected between the zero-crossing detection unit 71 and the digital automatic voltage regulator 180 to adjust the voltage frequency when the phase difference of the zero-crossing signal deviates from a preset value in real time. It is preferable to include a limit setting unit 72 that substantially blocks noise. Here, it is preferable that the limit setting unit 72 is provided as a microprocessor that is provided to remove the noise generated by being deviating from the limit range in real time by controlling the timing operation using a microcomputer method.

Here, when the frequency (phase difference) of the zero-crossing signal detected by the zero-crossing detection unit 71 is deviating from the preset limit range, the limit setting unit 72 determines that it is noise and in the excitation coil 31 It is preferable to block and remove noise transmitted to the digital automatic voltage regulator 180 in real time.

In addition, the limit setting unit 72 may reinforce or offset the output frequency deviating from the limit range input from the excitation coil 31 in a microcomputer digital manner and transmit it to the digital automatic voltage regulator 180 . In this case, the digital output control unit 70 may be circuit-connected to the automatic voltage regulator 180 to reinforce or cancel the output frequency of the excitation coil 31 .

Accordingly, when the power generation unit 200 generates an AC voltage through electromagnetic induction, noise naturally generated due to a cause such as arrangement deviation of circuit elements or power supply characteristics is generated by the excitation coil 31 and the digital automatic voltage regulator 180 . ) is detected and blocked in real time by a digital microcomputer method through the digital output control unit 70 connected to the circuit. Accordingly, since the phase of the final output voltage is transmitted substantially uniformly, the reliability of the product may be remarkably improved.

On the other hand, the digital power generation automatic voltage control system 500 is circuit-connected to the digital automatic voltage regulator 180 and the digital output control unit 70, and to the operation unit 65 for operation of the final output voltage and output mode. It is preferable to further include the digital signal processing unit 61 that is connected to communication. At this time, the digital signal processing unit 61, the digital automatic voltage regulator 180, and the digital output control unit 70 are provided as a single microcomputer, but it is preferable to understand that they are divided for different functions.

Here, when the digital power generation system 500 is applied to a hybrid vehicle, the digital automatic voltage regulator 180 may be operably provided independently of the power generation unit 200 . That is, even when the power generation unit 200 is not provided, it can be used as a separate device for automatic voltage control.

In this case, when the digital power generation system 500 is applied to a hybrid vehicle, an auxiliary power unit (not shown) may be provided as an external output auxiliary device provided inside the vehicle.

Here, the digital signal processing unit 61, the digital automatic voltage regulator 180 and the digital output control unit ( 70) is driven to correct the magnitude of the output voltage generated by the power generation unit 200, and a final output voltage from which naturally generated noise is removed may be supplied through the output unit 63. In this case, power for the final output voltage may be externally supplied through the output unit 63 .

In addition, the digital power generation automatic voltage regulation system 500 is circuit-connected to the digital signal processing unit 61 and finally output voltage from the output unit 63 connected to the output terminal of the output sensing unit 186 in a circuit. It is preferable to further include a display unit 64 provided to display. Through this, since the operation state of the digital power generation automatic voltage control system 500 can be visually easily checked through the display unit 64, the usability can be improved.

And, the operation unit 65 may be provided to adjust the output voltage characteristics finally output from the output unit 63 of the digital power generation automatic voltage control system 500 by the user, and the operation unit 65 It may be provided so that the operation state through the operation is displayed in association with the display unit 64 . In this case, the manipulation unit 65 may be provided as an external controller such as a vehicle control unit (VCU), an electronic control unit (ECU), an on board charger (OBC), and the like, and the digital signal processing unit 61 and the bidirectional protocol can be connected have.

Meanwhile, referring to FIG. 1 , the digital automatic voltage regulator 180 is circuit-connected to the excitation coil 31 and the output voltage generated by the excitation coil 31 so that the final output voltage is selectively variable and converted. It is preferable to self-regulate.

In addition, the digital automatic voltage regulator 180 preferably includes an input sensing unit 181 , an output voltage adjusting unit 182 , a rectifying unit 185 , and an output sensing unit 186 .

Here, it is preferable that the input sensing unit 181 is provided such that an input terminal is connected to the excitation coil 31 in a circuit to sense the voltage and current output from the excitation coil 31 . Also, the input sensing unit 181 may include an input voltage measuring unit and an input current sensing unit.

At this time, in an embodiment of the present invention, the case in which the input detection unit 181 is circuit-connected to the excitation coil 31 via the limit setting unit 72 and the zero crossing detection unit 71 is shown as an example. and, however, if the input terminal of the digital automatic voltage regulator 180 is circuit-connected to the excitation coil 31, the connection structure is not limited thereto. That is, the input detection unit 181 may be indirectly circuit-connected to the excitation coil 31 by having an input terminal connected to the limit setting unit 72 in a circuit, or, in some cases, the excitation coil 31 and the zero It may be provided with a circuit connected between the crossing detection units 71 .

In addition, the output voltage adjusting unit 182 preferably includes a voltage addition inverter unit 183 and a voltage drop transformer unit 184 . In this case, the voltage addition inverter unit 183 and the voltage drop transformer unit 184 may be respectively connected to the output unit 63 to output power.

Here, it is preferable that the voltage addition inverter unit 183 is connected in parallel to the output terminal of the input sensing unit 181 to selectively increase the output value of the AC voltage generated by the excitation coil 31 . . At this time, the voltage addition inverter unit 183 is preferably provided with a voltage output through the output unit 63 in addition to the voltage output from the excitation coil 31, and may be provided as a microprocessor internal component. .

In addition, the voltage drop transformer 184 is preferably provided to selectively reduce the output value of the AC voltage generated by the excitation coil 31 by being circuit-connected in parallel to the output terminal of the input sensing unit 181 . . Here, the voltage drop transformer 184 is preferably provided to drop the voltage output from the excitation coil 31, and may be provided as an internal component of the microprocessor.

Accordingly, the voltage output from the excitation coil 31 of the power generation unit 200 is selectively added and Since the final output voltage can be freely adjusted according to the drop, the power generation unit 200 applied to a hybrid vehicle can be stably driven at full-band RPM, so that versatility can be remarkably improved. At this time, when the AC voltage generated from the excitation coil 31 is output with an under or excessive value, the output voltage adjusting unit 182 reinforces it in real time so that the AC voltage can be constantly maintained in a preset range. .

In addition, the rectifying unit 185 may be circuit-connected to the output terminal of the input sensing unit 181 in parallel to selectively convert the AC voltage generated by the excitation coil 31 into a DC voltage. Alternatively, in some cases, the rectifier may be circuit-connected to an output terminal of the voltage addition inverter and the voltage drop transformer. Here, the rectifying unit 185 may be provided as a microprocessor. For example, the rectifier 185 is provided with three pairs of circuits in which two diodes are connected in series and are connected in parallel to each other, the output terminal of the diode is provided as a positive voltage terminal, and the input terminal of the diode is provided as a negative voltage terminal. . In addition, the excitation coil 31 provided as a three-phase coil and wound at three locations on the core may be circuit-connected between each of the diodes connected in series. Accordingly, as the permanent magnet unit 23 rotates, the AC voltage generated in the excitation coil 31 may be converted into a DC voltage by the rectifier 51 and output.

Meanwhile, the output sensing unit 186 is circuit-connected to the output terminals of the output voltage adjusting unit 182 and the rectifying unit 185 , and the voltage and current converted by the output voltage adjusting unit 182 or the rectifying unit 185 . It is preferable to be provided to measure. Here, the output sensing unit 186 may include an output voltage measuring unit and an output current measuring unit.

In addition, the digital automatic voltage regulator 180 may be circuit-connected to the digital signal processing unit 61 to adjust the characteristics of the final output voltage input by the manipulation unit 65 and output from the output unit 63 . In this case, the input sensing unit 181 and the output sensing unit 186 may be circuit-connected to the digital signal processing unit 61 . Here, the final output voltage characteristic may include an AC/DC type of the final output voltage, an output voltage value, a phase frequency, and the like.

In addition, when the output voltage characteristic of the output target value from the output unit 63 is input and set through the manipulation unit 65 , the digital automatic voltage regulator 180 automatically adjusts the voltage output from the excitation coil 31 . Adjustment is preferred.

Here, the digital automatic voltage regulator 180 applies a first control signal to the voltage addition inverter unit 183 when the voltage value output from the input detection unit 181 is less than the output target value set by the manipulation unit 65 . can be transmitted

In addition, the digital automatic voltage regulator 180 provides a second control to the voltage addition inverter unit 183 when the voltage value output from the input detection unit 181 exceeds the output target value set by the manipulation unit 65 . signal can be transmitted.

For example, when the output target value is set to an AC voltage of 200V, but the voltage value measured by the input detection unit 181 is less than or exceeds 200V, the digital automatic voltage regulator 180 controls the voltage addition inverter unit 183 and By controlling any one of the voltage drop transformer 184, the output target value can be quickly corrected.

Accordingly, the digital automatic voltage regulator 180 corresponds to the voltage intensity measured by the input sensing unit 181 and the output sensing unit 186, and the voltage addition inverter unit 183 of the output voltage control unit 182. ) and by automatically controlling the voltage drop transformer 184, the output target value can be quickly and precisely corrected.

On the other hand, the output unit 63 connected to the output terminal of the voltage addition inverter unit 183, the voltage drop transformer unit 184, the rectifier unit 185 and the output detection unit 186 is the excitation coil It may be provided to supply electric energy output from 31 to a charging object such as an electric vehicle. Accordingly, as the output unit 63 is connected to the charging object, the power produced by the power generation unit 200 and corrected by the digital output control unit 70 and the digital automatic voltage regulator 180 can be supplied. can

Accordingly, the AC voltage generated by the excitation coil 31 of the stator unit 30 is automatically corrected by the voltage addition inverter unit 183 and the voltage drop transformer unit 184 of the output voltage control unit 182, and the Since the rotational speed of the driving body 10 power-connected to the rotor unit 20 is kept constant at a preset value, overload of the power generation unit 200 is prevented, so that durability and safety can be remarkably improved.

In particular, the voltage output generated by the excitation coil 31 is digitally controlled in real time by the digital output control unit 70 and the digital automatic voltage regulator 180 in units of 1 μs time. Therefore, the finally output voltage value is output substantially linearly and continuously, so that the reliability of the product is improved, and energy loss due to heat generation due to the load generation of the device is minimized, so that energy efficiency can be remarkably improved.

That is, due to the characteristics of the conventional analog generator, the final output voltage value is slightly increased or decreased based on the preset value. Since is adjusted in real time to quickly converge to 0 and minimized, the reliability of the output voltage is improved and the quality of the product can be significantly improved accordingly. At the same time, since the power generation unit 200 is smaller than the conventional generator, space utilization can be remarkably improved when applied to an external device.

Meanwhile, referring to FIG. 2 , an automatic mode, a setting mode, a down mode, and a turbo mode may be selectively input and switched by a user through the manipulation unit 65 .

Here, the digital signal processing unit 61 is connected to the digital automatic voltage regulator 180 so that the revolutions per hour (RPM) of the power generation unit 200 and the final output voltage from the output unit 63 are proportional to each other in the automatic mode. A first operation signal may be applied. At this time, when the first operation signal is applied to the digital automatic voltage regulator 180, the digital automatic voltage regulator 180 adjusts the voltage output generated by the excitation coil 31 in proportion to the voltage addition inverter unit ( 183) and the voltage drop transformer 184 may be automatically controlled.

And, the digital signal processing unit 61 is the digital automatic voltage regulator ( 180) may apply a second manipulation signal. Here, when the second operation signal is applied to the digital automatic voltage regulator 180, the voltage addition inverter so that the voltage output generated by the digital automatic voltage regulator 180 and the excitation coil 31 is maintained at a preset value Any one of the unit 183 and the voltage drop transformer 184 may be automatically controlled.

In addition, the digital signal processing unit 61 provides a third operation to the digital automatic voltage regulator 180 so that the number of revolutions per hour of the power generation unit 200 and the final output voltage from the output unit 63 are inversely proportional to each other in the down mode. signal can be applied. At this time, when the third operation signal is applied to the digital automatic voltage regulator 180, the digital automatic voltage regulator 180 adjusts the voltage output generated by the excitation coil 31 in inverse proportion to the voltage addition inverter unit ( 183) and the voltage drop transformer 184 may be automatically controlled.

Moreover, the digital signal processing unit 61 is configured such that, in the turbo mode, the revolutions per hour (RPM) of the power generation unit 200 and the final output voltage from the output unit 63 are proportional to each other when the first operation signal is applied. A fourth operation signal may be applied to the digital automatic voltage regulator 180 to be higher than the final output voltage. At this time, when the fourth operation signal is applied to the digital automatic voltage regulator 180 , the digital automatic voltage regulator 180 adjusts the voltage output generated by the excitation coil 31 to adjust the voltage addition inverter unit 183 ) and the voltage drop transformer 184 may be automatically controlled.

Therefore, when the automatic mode, setting mode, down mode, and turbo mode are input and switched in response to a user's operation, the final output voltage from the output unit 63 is applied to the revolutions per hour (RPM) of the power generation unit 200 . Since it can be selectively freely adjusted correspondingly, the usability can be improved.

On the other hand, the digital power generation automatic voltage control system 500 includes the power generation unit 200 , the rectifier unit 185 , the output detection unit 186 , the digital automatic voltage regulator 180 , and the digital output control unit 70 . ), it is preferable to further include a failure detection unit 61a for automatically determining whether the zero-crossing detection unit 71 has a failure. In this case, the fault detection unit 61a is preferably provided as a single microcomputer integrally with the digital signal processing unit 61 , the digital automatic voltage regulator 180 , and the digital output control unit 70 .

In detail, referring to FIG. 3 , the failure detection unit 61a is configured to generate power by the zero crossing detection unit 71 in a state in which the power generation unit 200 is operated and power is generated in the excitation coil 31 . It is determined whether a crossing signal is detected for a preset time (s120).

Here, the failure detection unit 61a transmits a first failure signal to the digital signal processing unit 61 when the zero-crossing signal is not detected for a predetermined period of time by the zero-crossing detection unit 71 (s121). In this case, the first failure signal may be transmitted to the display unit 64 through the digital signal processing unit 61 or may be transmitted to a separately provided notification means. Then, the user may check whether the excitation coil 31 is connected, whether the power generation unit 200 is faulty, and the like after confirming the first failure signal.

Next, the failure detection unit 61a determines whether a voltage is measured in the excitation coil 31 through the input detection unit 181 (s122). That is, the failure detection unit 61a senses the voltage measured by the input detection unit 181 connected to the circuit connected to the excitation coil 31 .

In addition, the failure detection unit 61a transmits a second failure signal to the digital signal processing unit 61 when no voltage change is detected by the input detection unit 181 connected to the excitation coil 31 (s123). ). Then, after checking the second failure signal, the user can check whether the excitation coil 31 is connected or not, whether the power generation unit 200 has a failure, and the like.

Next, the failure detection unit 61a determines whether the final output voltage measured by the output unit 63 is measured through the output detection unit 186 (s124). That is, the failure detection unit 61a detects the voltage measured by the output detection unit 186 connected to the output terminal of the digital automatic voltage regulator 180 in a circuit.

Here, the failure detection unit 61a transmits a third failure signal to the digital signal processing unit 61 when the final output voltage measured by the output detection unit 186 is not detected (s125). Then, after checking the third failure signal, the user can check whether the output unit 63 is connected, and whether each element in the excitation coil 31 and the power generation unit 200 is defective.

Then, the failure detection unit 61a determines whether the output target value set by the operation unit 65 and the voltage measured by the output detection unit 186 match each other (s126).

At this time, the failure detection unit 61a transmits a fourth failure signal to the digital signal processing unit 61 when the output target value and the voltage measured by the output detection unit 186 are different from each other (s127). Then, after checking the fourth failure signal, the user determines whether the digital automatic voltage regulator 180 is faulty, the excitation coil 31, the voltage addition inverter unit 183, the voltage drop transformer unit 184, and the rectifier unit. It is possible to check the wiring of (185), etc.

Moreover, the digital signal processing unit 61 may further include a notification means for generating a notification signal when each fault signal is generated by the fault detection unit 61a. In this case, the notification means may be provided as the display unit 64, may also be provided as a speaker, but is not limited thereto. In addition, the notification means may generate the notification means in a different manner for each of the first failure signal, the second failure signal, the third failure signal, and the fourth failure signal. For example, the notification means may generate a different color for each fault signal, or a different number and interval of signal tones.

Accordingly, the failure detection unit 61a determines whether the power generation unit 200 , the rectifier unit 185 , the output detection unit 186 , the digital automatic voltage regulator 180 and the digital output control unit 70 fail. Since various failure signals are transmitted sequentially by automatically determining the

Through this, the digital power generation automatic voltage regulation system 500 according to the present invention is provided to enable digitized input phase control control unlike the prior art using the RST analog phase control input, thereby increasing energy efficiency and simplifying the device. Cost savings can significantly improve economics. Moreover, the types of usable devices are diversified, so that the parts supply/demand mass productivity may be improved.

In addition, in addition to the power generation function through the power generation unit 200, the power generation unit ( 200) can be digitally adjusted, so the usability can be improved.

Through this, noise is substantially removed by real-time adjustment of the voltage frequency when the phase difference of the zero-crossing signal detected when the AC voltage is generated in the excitation coil 31 deviates from the preset value, and the voltage of the digital automatic voltage regulator 180 is added. The quality of the final output voltage can be improved by providing a synergistic effect in which the voltage amplitude range generated by the excitation coil 31 is automatically adjusted through the control of the inverter unit 183 and the voltage drop transformer unit 184 .

At the same time, the voltage generated through the power generation unit 200 regardless of the rotational speed of the driving body 10 is combined with the voltage addition inverter unit and voltage, unlike the prior art in which the RPM range was limited due to overload occurring during engine overspeed. The versatility can be remarkably improved because it can be used at full-band RPM by freely adjusting the final output voltage digitally by correcting it through the drop-down transformer.

In addition, as the control method of the digital output control unit 70 is changed to an AC-DC constant voltage method instead of a half wave method, heat generation is reduced and malfunction due to noise is minimized, and it is smaller than a conventional generator and applied to an external device. Space utilization can be significantly improved.

In addition, since the power generation unit 200, the digital output control unit 70, and the digital automatic voltage regulator 180 are configured as a single system, the efficiency of use of products manufactured by applying them and economic feasibility due to cost reduction will be improved. can

In this case, terms such as "include", "comprise" or "comprise" described above mean that the corresponding component may be inherent unless otherwise stated, so other components are excluded. Rather, it should be construed as being able to include other components further. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and modifications can be implemented by those of ordinary skill in the art to which the present invention pertains without departing from the scope of the claims of the present invention. and such modifications are within the scope of the present invention.

500: digital power generation automatic voltage regulation system
10: driving body 20: rotor part
23: permanent magnet part 30: stator part
31: excitation coil 61: digital signal processing unit
61a: failure detection unit 63: output unit
64: display unit 65: operation unit
70: digital output control unit 71: zero crossing detection unit
72: limit setting unit 180: digital automatic voltage regulator
181: input detection unit 182: output voltage control unit
183: voltage addition inverter unit 184: voltage drop transformer unit
185: rectifying unit 186: output sensing unit
200: power generation unit

Claims (5)

a power generation unit including a rotor unit connected to the driving body to be rotatably disposed and having a permanent magnet at one side, and a stator unit wound with an excitation coil in which an induction magnetic field is formed when the rotor unit rotates;
a digital automatic voltage regulator connected to the circuit to adjust the output voltage generated from the excitation coil so that the final output voltage is selectively variable and converted;
a digital output control unit connected to the excitation coil and passing a voltage output within a preset limit range so that the final output voltage is substantially uniformly output; and
A failure detection unit for automatically determining whether the power generation unit, the digital automatic voltage regulator and the zero-crossing detection unit of the digital output control unit are faulty,
The failure detection unit transmits a first failure signal when the zero-crossing signal is not detected for a predetermined time by the zero-crossing detection unit, and a second failure signal when the voltage measured by the input detection unit circuit connected to the excitation coil is not detected. to send,
When the voltage measured by the output sensing unit connected to the output terminal of the digital automatic voltage regulator is not detected, a third failure signal is transmitted, and the voltage measured by the output sensing unit, the final output voltage, and the operation unit for operating the output mode If the set output target value is different, the fourth failure signal is transmitted,
The first fault signal, the second fault signal, the third fault signal, and the fourth fault signal are generated as mutually different notification signals by the notification means when each fault signal is generated. . The method of claim 1,
The digital automatic voltage regulator
the input sensing unit;
A voltage addition inverter circuit connected to the output terminal of the input detection unit to selectively increase the output value of the AC voltage generated by the excitation coil and a circuit connected to the output terminal of the input detection unit to select the output value of the AC voltage generated by the excitation coil An output voltage control unit including a voltage drop transformer to reduce
a rectifying unit connected to the output terminal of the input sensing unit to selectively convert the AC voltage generated in the excitation coil into a DC voltage;
Digital power generation automatic voltage control system, characterized in that it comprises the output detection unit. 3. The method of claim 2,
The digital output control unit
The zero-crossing detection unit is connected to the circuit to the excitation coil and detects a zero-crossing signal in real time when an AC voltage is generated from the excitation coil;
Digital power generation automatic, characterized in that it comprises a limit setting unit that is connected to a circuit between the zero-crossing detecting unit and the rectifying unit to substantially block noise by adjusting the voltage frequency when the phase difference of the zero-crossing signal deviates from a preset value in real time voltage regulation system. delete The method of claim 1,
a digital signal processing unit circuitly connected to the digital output control unit and connected to an operation unit for operating an output voltage and an output mode;
Further comprising a display unit circuit connected to the digital signal processing unit for displaying the output voltage output from the output terminal of the digital automatic voltage regulator,
The digital signal processing unit
Applying a first operation signal to the digital automatic voltage regulator so that the number of revolutions per hour and the output voltage of the power generation unit are proportional to each other in the automatic mode,
A second operation signal is applied to the digital automatic voltage regulator so that the output voltage is maintained at a preset value regardless of the number of revolutions per hour of the power generation unit in the setting mode,
Digital power generation automatic voltage control system, characterized in that by applying a third operation signal to the digital automatic voltage regulator so that the number of revolutions per hour and the output voltage of the power generation unit are in inverse proportion to each other in the down mode.

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