KR20210016722A - 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 provides a digital power generation automatic voltage regulation system comprising: a power generation unit including a rotor unit power-connected to a driving body to be rotatably arranged and provided with a permanent magnet unit on one side and a stator unit wound with an excitation coil in which an inductive magnetic field is formed when the rotor unit rotates; a digital automatic voltage regulator circuit-connected to the excitation coil and adjusting the output voltage generated from the excitation coil so that the final output voltage is selectively varied and converted; and a digital output control unit circuit-connected to the excitation coil and passing the voltage output in a preset limit range so that the final output voltage is output substantially uniformly.

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 the generated output voltage, is miniaturized, and minimizes energy loss due to heat generation.

In general, automobiles use gasoline or diesel as fuel, but gasoline and diesel not only cause air pollution by emitting harmful substances, but also crude oil for manufacturing gasoline and diesel fuel is depleted, so the development of alternative energy that can replace this is difficult. It is a necessary situation. In recent years, each industry is in a hurry to develop alternative energy, and as an alternative to this, electric vehicles that run through electric energy are being developed.

Such an electric vehicle refers to a vehicle operated using electricity, and can be largely classified into a pure electric vehicle (Batttery Powered Electric Vehicle) and a hybrid electric vehicle (Hybrid Electric Vehicle).

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

The electric vehicle is provided with a battery that supplies electricity for driving. In particular, pure electric vehicles and plug-in type hybrid electric vehicles charge a battery using power supplied from an external power source, and drive an electric motor using the 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 when the energy of the battery is discharged and charged. 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 electric power to the battery of the electric vehicle by using an emergency power supply device provided in a towing vehicle such as an emergency dispatcher in a situation where unexpected discharge or charging of the battery is required during the driving of the electric vehicle. have.

Such a power supply device may generate power that can be supplied to an electric vehicle as the rotor of the generator connected to the engine of the towing vehicle rotates at high speed at tens of thousands of revolutions per minute (RPM). In this case, the AC voltage produced as the rotor rotates may be converted into a DC voltage through a rectifier and supplied to an 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 has been mainly used, but a lithium ion battery having a high energy density is mainly used as the demand for a high-performance automobile battery has recently increased.

However, if the lithium ion-based auxiliary battery is overheated due to excessive supply of power above the rated voltage, generation of overcurrent, and discharge due to low voltage, there is a high possibility of a safety accident such as a fire. There was a problem that it was difficult to reuse.

On the other hand, the conventional power generation system for 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 is driven by using the TR control phase control method through a photocoupler for the RST waveform output during power generation.

However, there is a problem in that there is an error in the control method of the base voltage of the TR element due to variations in peripheral circuit elements and power noise. That is, there is a problem in that the efficiency of the control is reduced because 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 has a complicated structure, making it difficult to miniaturize and high manufacturing cost, but the conventionally used SMPS (s1witching mode power supply) method, and the circuit is simple and high power rectification. There are trans (TRANS) method and half-wave rectification method, which are proportional to the size multiples but have low power generation efficiency.

However, it is difficult to use the transformer method and the SMPS method due to the size constraints of the small generator.

In order to solve this problem, a generator can be manufactured by applying a half-wave rectification method in which the circuit can be miniaturized and the manufacturing cost is low.

However, in the generator to which the half-wave rectification method is applied, the output voltage is half-wave rectified, resulting in lower power generation efficiency, and heat generated for controlling the output voltage for noise correction causes serious damage to the device, resulting in a significant decrease in durability, and heat generation. As a result, there is a problem in that power is lost and energy efficiency is lowered.

Korean Patent Application 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 automatically adjusts the generated output voltage and minimizes energy loss due to heat generation.

In order to solve the above problems, the present invention is a rotor portion that is arranged rotatably by being connected to a driving body to be rotatable, and provided with a permanent magnet portion on one side, and a stator portion on which an excitation coil is wound to form an induction magnetic field when the rotor portion is rotated. A power generation unit that includes; A digital automatic voltage regulator that is connected to the excitation coil and controls the output voltage generated from the excitation coil so that the final output voltage is selectively variable and converted; And a digital output control unit circuit-connected to the excitation coil to pass a voltage output within a preset limit range so that a final output voltage is substantially uniformly outputted.

Here, the digital automatic voltage regulator includes an input sensing unit connected to the excitation coil in a circuit, and a voltage addition inverter unit that is connected to an output terminal of the input sensing unit and selectively increases an output value of the AC voltage generated from the excitation coil. An output voltage control unit including a voltage drop transformer that is connected to the output terminal of the input sensing unit and selectively reduces the output value of the AC voltage generated from the excitation coil, and is connected to the output terminal of the input sensing unit to generate the excitation coil. It is preferable to include a rectifying unit for selectively converting the AC voltage into a DC voltage, and an output sensing unit circuitly connected to an output terminal of the output voltage adjusting unit.

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

In addition, the power generation unit, the digital automatic voltage regulator and the digital output control unit further comprises a fault detection unit for automatically determining whether or not a failure of the zero crossing detection unit, wherein the failure detection unit is the zero crossing detection unit for a preset time. When the crossing signal is not detected, the first fault signal is transmitted, and when the voltage measured by the input sensing unit connected to the excitation coil is not detected, the second fault signal is transmitted, and the output detection circuit connected to the output terminal of the digital automatic voltage regulator It is preferable to transmit the third fault signal when the voltage measured by the unit is not detected, and transmit the fourth fault signal when the voltage measured by the output detection unit and the output target value set by the operation unit are different.

In addition, a digital signal processing unit connected to the digital output control unit and connected to an operation unit for operating an output voltage and an output mode, and an output voltage that is connected to the digital signal processing unit and 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 number of revolutions per hour of the power generation unit and the output voltage are proportional in the automatic mode, Regardless of the number, a second operation signal is applied to the digital automatic voltage regulator so that the output voltage is maintained at a preset value, and a third operation signal is applied to the digital automatic voltage regulator so that the number of revolutions per hour of the power generation unit is inversely proportional to the output voltage in the down mode. It is preferable to apply an operation signal.

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

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

Second, unlike the prior art, when the range of RPM use was limited due to an overload during engine overspeed, the voltage generated through the power generation unit is corrected through the voltage addition inverter unit and the voltage drop transformer unit, regardless of the rotational speed of the driving body, thereby correcting the final output voltage. Since it can be freely adjusted digitally and used in full-band RPM, versatility can be remarkably improved.

Third, the phase of the final output voltage is substantially uniform as noise that is naturally generated due to variations in arrangement of circuit elements or power characteristics is detected and cut off in real time through a digital output control unit connected to the excitation coil in a digital microcomputer method. The reliability of the product can be remarkably improved because it is delivered in a way.

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

Fifth, the fault detection unit automatically determines whether there is a failure in the power generation unit, rectification unit, measurement unit, digital automatic voltage regulator and digital output control unit, and transmits a variety of failure signals, so that the user can easily check the area where the failure occurs. It can be significantly improved.

Sixth, as the control method of the digital output control unit is changed to an AC-DC constant voltage method rather than a half-wave method, heat generation is reduced and malfunctions due to noise are minimized, and space utilization is reduced when applied to external devices as it is smaller than a conventional generator. It 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 unified system, the efficiency of use and cost reduction of products manufactured by applying them 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.
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 flow chart showing a control method of a fault detection unit in the 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 showing a digital power generation automatic voltage control system according to an embodiment of the present invention, Figure 2 is a graph showing a control state of the digital power generation automatic voltage control system according to an embodiment of the present invention. And, Figure 3 is a flow chart showing a control method of the fault detection unit in the 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 power generation system that is connected to a vehicle or ship engine, a vehicle for emergency power charging, and the like to generate power. In addition, it is preferable to understand that the digital signal processing unit 61, the digital automatic voltage regulator 180, and the digital output control unit 70 are provided as one microcomputer, but are classified for each different function.

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

In addition, the rotor unit 20 is preferably provided to be connected to the power drive 10 provided as an engine of a vehicle or ship. In detail, it is preferable that the driving body 10 is provided to provide a driving force to the rotor unit 20 as it is rotated. 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 portion of the rotor unit 20, the driving force of the driving body 10 may be converted into a rotating force of the rotating shaft portion.

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

In addition, it is preferable that the core portion of the stator portion 30 is provided in a hollow shape and disposed outside the rotor portion 20 in the radial direction. Here, the core portion is disposed to surround the outer circumference of the permanent magnet portion 23 of the rotor portion 20, it is preferable that the rotor portion 20 and disposed at a predetermined distance from each other.

In addition, the core portion is preferably disposed to surround the outer periphery of the permanent magnet portion 23 and the tapered fixing portion. 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, the inner diameter of the core portion is preferably formed to exceed the outer diameter of the rotor portion 20.

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

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

In addition, the stator portion 30 includes a first cover portion and a second cover portion, and the first cover portion and the second cover portion are preferably disposed on both sides of the core portion in the axial direction to be 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, the second cover portion is disposed on the other end side of the core portion, it is provided in a cylindrical shape with one side open, and is preferably formed with an outer diameter corresponding to the outer diameter of the core portion. Here, the second cover portion is provided in a hollow shape, and the inner diameter may be formed to be finely larger than the outer diameter of one end portion of the rotation shaft portion. In this case, a device such as a bearing may be further provided between the inner circumference of the second cover part and one end of the rotation shaft part. Accordingly, the rotor part 20 interlocked with the driving body 10 is disposed inside the stator part 30 including the core part, the first cover part, and the second cover part to be rotated. .

Meanwhile, referring to FIG. 1, the digital output control unit 70 is provided to pass only the voltage output in a preset limit range so that the final output voltage is substantially uniformly output by being connected to the excitation coil 31. This is desirable. At this time, the preset limit range refers to a preset voltage frequency range for stably driving the charging target when the power generated by the excitation coil 31 is supplied to the charging target, and a voltage frequency deviating from the limit range It is preferable 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 and output when compared with the average voltage frequency output from the excitation coil 31.

Here, the digital output control unit 70 is a circuit connected between the excitation coil 31 and the digital automatic voltage regulator 180, and detects a zero crossing signal in real time when an AC voltage is generated from the excitation coil 31 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 a frequency unit 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 detection unit 71 is preferably provided to analyze in real time an input waveform input from the excitation coil 31 to the zero crossing detection unit 71.

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

In addition, the digital output control unit 70 is a circuit connected between the zero crossing detection unit 71 and the digital automatic voltage regulator 180 to adjust the voltage frequency in real time when the phase difference of the zero crossing signal deviates from a preset value. 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 provided to remove noise generated by deviating from the limit range in real time by timing operation control using a microcomputer method.

Here, when the frequency (phase difference) of the zero-crossing signal detected by the zero-crossing detection unit 71 deviates from a preset limit range, the limit setting unit 72 determines this as noise, and the excitation coil 31 It is desirable 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 cancel an output frequency deviating from the limit range input from the excitation coil 31 in a microcomputer digital method and transmit it to the digital automatic voltage regulator 180. In this case, the digital output control unit 70 may be connected to the automatic voltage regulator 180 in a circuit to reinforce or cancel the output frequency of the excitation coil 31.

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

Meanwhile, the digital power generation automatic voltage control system 500 is circuitly connected to the digital automatic voltage regulator 180 and the digital output control unit 70, and is connected to the operation unit 65 for operating the final output voltage and the output mode. It is preferable to further include the digital signal processing unit 61 connected to communication. In this case, it is preferable to understand that the digital signal processing unit 61, the digital automatic voltage regulator 180, and the digital output control unit 70 are provided as one microcomputer, but are classified for each different function.

Here, when the digital power generation system 500 is applied to a hybrid vehicle, the digital automatic voltage regulator 180 may be provided to be independently operated 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 regulation.

In this case, when the digital power generation system 500 is applied to a hybrid vehicle, an auxiliary power supply 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 through power supply through the digital output control unit 70 separately from the power generated by the power generation unit 200 ( 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 natural noise is removed may be supplied through the output unit 63. In this case, power for the final output voltage may be supplied to the outside through the output unit 63.

In addition, the digital power generation automatic voltage control system 500 is a circuit connected to the digital signal processing unit 61, the output voltage final output from the output unit 63 circuit connected to the output terminal of the output detection unit 186 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 easily checked through the display unit 64, the usability can be improved.

In addition, the operation unit 65 may be provided to adjust an output voltage characteristic finally output from the output unit 63 of the digital power generation automatic voltage control system 500 by a user, and the operation unit 65 It may be provided so that the operation state through the display unit 64 is linked to and displayed. At this time, the operation 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 may be connected to the digital signal processing unit 61 for a bidirectional protocol. have.

Meanwhile, referring to FIG. 1, the digital automatic voltage regulator 180 is an output voltage generated from the excitation coil 31 so that the final output voltage by circuit connection to the excitation coil 31 is selectively variable and converted. It is desirable to control the self-species.

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, the input sensing unit 181 is preferably 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. Further, 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 input sensing unit 181 is circuitly connected to the excitation coil 31 via the limit setting unit 72 and the zero crossing detection unit 71 as an example. And description, if the input terminal of the digital automatic voltage regulator 180 is circuitly connected to the excitation coil 31, the connection structure is not limited thereto. That is, the input detection unit 181 may have an input terminal connected to the limit setting unit 72 and indirectly connected to the excitation coil 31, or in some cases, the excitation coil 31 and the zero A circuit connection may be provided between the crossing detection units 71.

In addition, the output voltage control 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 and is provided to selectively increase the output value of the AC voltage generated from the excitation coil 31. . In this case, 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 an internal component of the microprocessor. .

In addition, it is preferable that the voltage drop transformer unit 184 is connected in parallel to the output terminal of the input sensing unit 181 to selectively reduce the output value of the AC voltage generated from the excitation coil 31. . 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 through the voltage addition inverter unit 183 and the voltage drop transformer unit 184 of the output voltage control unit 182 and The final output voltage can be freely adjusted according to the decrease, so that the power generation unit 200 applied to a hybrid vehicle or the like can be stably driven at a full-band RPM, so versatility can be remarkably improved. At this time, when the AC voltage generated by the excitation coil 31 is output in an insufficient or excessive value, the output voltage controller 182 reinforces it in real time, so that the AC voltage can be kept constant within a preset range. .

In addition, the rectifying unit 185 may be circuitly connected to the output terminal of the input sensing unit 181 in parallel to selectively convert the AC voltage generated from the excitation coil 31 into a DC voltage. Alternatively, in some cases, the rectifier may be 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 may be provided with three pairs of circuits in which two diodes are connected in series, but are connected in parallel, and the output terminal of the diode may be provided as a positive voltage terminal and the input terminal of the diode may be provided as a negative voltage terminal. . In addition, the excitation coil 31, which is provided as a three-phase coil and wound in three places on the core part, may be connected to each circuit between each diode connected in series. Accordingly, as the permanent magnet part 23 is rotated, the AC voltage generated in the excitation coil 31 may be converted into a DC voltage in the rectifying part 51 and output.

On the other hand, the output detection unit 186 is connected to the output terminal of the output voltage control unit 182 and the rectification unit 185, the voltage and current converted by the output voltage control unit 182 or the rectification unit 185 It is preferably provided to measure. Here, the output detection unit 186 may include an output voltage measurement unit and an output current measurement unit.

In addition, the digital automatic voltage regulator 180 may be circuitly connected to the digital signal processing unit 61 to adjust a final output voltage characteristic inputted 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 connected to the digital signal processing unit 61 in a circuit. 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 operation unit 65, the digital automatic voltage regulator 180 automatically adjusts the voltage output from the excitation coil 31. It is desirable to adjust.

Here, the digital automatic voltage regulator 180 transmits a first control signal to the voltage addition inverter unit 183 when the voltage value determined by the input detection unit 181 is less than the output target value set by the operation 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 determined by the input detection unit 181 exceeds the output target value set by the control unit 65. Can transmit signals.

For example, when the output target value is set to an AC voltage of 200V, but the voltage value measured by the input sensing unit 181 is less than or exceeds 200V, the digital automatic voltage regulator 180 may be configured with the voltage addition inverter unit 183 and By controlling any one of the voltage drop transformer unit 184, the output target value may 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, the voltage addition inverter unit 183 of the output voltage adjusting unit 182 ) And by automatically controlling the voltage drop transformer unit 184, the output target value can be quickly and precisely corrected.

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

Therefore, 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, Regardless of the rotational speed of the driving body 10 that is power-connected to the rotor unit 20, it is kept constant at a preset value, so that the overload of the power generation unit 200 is prevented, so that durability and safety can be significantly 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. Accordingly, since the finally output voltage value is continuously output in a substantially linear manner, the reliability of the product is improved, and energy loss due to heat generation due to the generation of a load of the element is minimized, so that energy efficiency can be significantly improved.

That is, due to the characteristics of the conventional analog generator, the voltage value finally output is finely increased or decreased based on the preset value, but in the present invention to which digital control is applied, the difference between the maximum and minimum voltage values is substantially in units of one millionth of a second. The reliability of the output voltage is improved and the quality of the product can be remarkably improved accordingly, since is adjusted in real time to quickly converge to zero and minimized. At the same time, the power generation unit 200 is smaller than that of a conventional generator, so that space utilization can be significantly 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 operation unit 65.

Here, the digital signal processing unit 61 is applied to the digital automatic voltage regulator 180 so that the number of revolutions per hour (RPM) of the power generation unit 200 and the final output voltage from the output unit 63 are proportional in the automatic mode. The first manipulation signal can 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 uses the voltage addition inverter unit to proportionally adjust the voltage output generated by the excitation coil 31 ( 183) and one of the voltage drop transformer 184 may be automatically controlled.

In addition, the digital signal processing unit 61 is the digital automatic voltage regulator so that the final output voltage from the output unit 63 is maintained at a preset value regardless of the number of revolutions per hour of the power generation unit 200 in the setting mode. 180) can be applied to the second operation signal. Here, when the second operation signal is applied to the digital automatic voltage regulator 180, the voltage addition inverter maintains the voltage output generated by the digital automatic voltage regulator 180 and the excitation coil 31 at a preset value. Any one of the unit 183 and the voltage drop trans unit 184 may be automatically controlled.

In addition, the digital signal processing unit 61 performs a third operation on 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 in inverse proportion 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 adding inverter unit ( 183) and one of the voltage drop transformer 184 may be automatically controlled.

Moreover, the digital signal processing unit 61 is proportional to the number of revolutions per hour (RPM) of the power generation unit 200 and the final output voltage of the output unit 63 in the turbo mode, but when the first operation signal is applied. A fourth manipulation signal may be applied to the digital automatic voltage regulator 180 so as to be increased 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 controls the voltage output of the voltage generated by the excitation coil 31. ) And the voltage drop transformer 184 may be automatically controlled.

Therefore, when the automatic mode, the setting mode, the down mode, and the turbo mode are input and switched in response to the user's operation, the final output voltage from the output unit 63 is converted to the RPM of the power generation unit 200. Correspondingly, it can be freely adjusted selectively, so the usability can be improved.

Meanwhile, the digital power generation automatic voltage control system 500 includes the power generation unit 200, the rectification 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 or not the zero crossing detection unit 71 of the). In this case, the fault detection unit 61a is preferably provided as a microcomputer integrated 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, when the power generation unit 200 is operated to generate power to the excitation coil 31, the zero crossing detection unit 71 It is determined whether the crossing signal is detected for a preset time (s120).

Here, the fault detection unit 61a transmits a first fault signal to the digital signal processing unit 61 when the zero crossing signal is not detected for a predetermined time by the zero crossing detection unit 71 (s121). In this case, the first fault 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 unit. In addition, after checking the first fault signal, the user may check whether the excitation coil 31 is connected, whether the power generation unit 200 is faulty, or the like.

Subsequently, 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 fault detection unit 61a detects the voltage measured by the input detection unit 181 connected to the excitation coil 31.

Further, the failure detection unit 61a transmits a second failure signal to the digital signal processing unit 61 when a voltage change is not detected by the input detection unit 181 connected to the excitation coil 31 (s123). ). In addition, after checking the second fault signal, the user may check whether the excitation coil 31 is connected, whether the power generation unit 200 is faulty, or the like.

Subsequently, 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 fault 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.

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). In addition, after checking the third fault signal, the user may check whether or not the output unit 63 is connected, the excitation coil 31 and each element inside the power generation unit 200, and the like.

Further, 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 coincide with 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 (S127). Then, the user checks whether the digital automatic voltage regulator 180 has failed, the excitation coil 31, the voltage addition inverter unit 183, the voltage drop transformer unit 184, and the rectifier unit after checking the fourth fault signal. (185) can be checked for wiring.

Further, 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 be provided as a speaker, etc., but is not limited thereto. In addition, the notification means may generate the notification means in a different manner for each of the first fault signal, the second fault signal, the third fault signal, and the fourth fault signal. For example, the notification means may generate a beep sound of a different color or a different number and interval for each fault signal.

Therefore, whether the failure detection unit 61a is a failure of the power generation unit 200, the rectification unit 185, the output detection unit 186, the digital automatic voltage regulator 180, and the digital output control unit 70 Since a variety of fault signals are transmitted by automatically discriminating in sequence, the user can easily check the fault occurrence area, and work convenience can be significantly improved.

Through this, the digital power generation automatic voltage control system 500 according to the present invention is provided to enable digitized input phase control control unlike the conventional RST analog phase control input, thereby increasing energy efficiency and simplifying the device. Economics can be significantly improved through cost reduction. Moreover, the variety of available devices can improve component supply and demand mass production.

In addition, through the digital signal processing unit 61, the digital automatic voltage regulator 180, and the digital output control unit 70 provided as a microcomputer along with the power generation function through the power generation unit 200, the power generation unit ( 200) can be adjusted digitally, so the usability can be improved.

Through this, the phase difference of the zero-crossing signal detected when the AC voltage is generated in the excitation coil 31 adjusts the voltage frequency in real time when the voltage frequency deviates from the preset value to substantially eliminate noise and add the voltage of the digital automatic voltage regulator 180 The quality of the final output voltage may be improved by providing a synergy 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, unlike the prior art in which an overload occurs when the engine is overspeed and the range of use of RPM is limited, the voltage generated through the power generation unit 200 is added to the inverter unit and the voltage, regardless of the rotational speed of the driving body 10. The versatility can be remarkably improved since the final output voltage can be freely adjusted in a digital manner by correcting through the dropping transformer and can be used at full-band RPM.

In addition, as the control method of the digital output control unit 70 is changed to an AC-DC constant voltage method rather than a half-wave method, heat generation is reduced and malfunctions due to noise are minimized, and when applied to an external device, it is smaller than a conventional generator. Space utilization can be remarkably 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 and cost reduction of the products manufactured by applying them will be improved. I can.

At this time, the terms such as "include", "comprise" or "have" described above mean that the corresponding component may be present unless otherwise stated, excluding other components. It should not be construed as being able to include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art, unless otherwise defined. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and it is possible to be modified and implemented by those of ordinary skill in the art without departing from the scope claimed in the claims of the present invention. And, these modifications are within the scope of the present invention.

500: digital power generation automatic voltage regulation system
10: drive body 20: rotor portion
23: permanent magnet part 30: stator part
31: excitation coil 61: digital signal processing unit
61a: fault 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 sensing unit 182: output voltage control unit
183: voltage addition inverter unit 184: voltage drop transformer unit
185: rectification unit 186: output sensing unit
200: power generation department

Claims (5)

A power generation unit including a rotor unit that is power-connected to the driving body and is rotatably disposed and having a permanent magnet unit on one side thereof, and a stator unit on which an excitation coil is wound to form an induction magnetic field when the rotor unit rotates;
A digital automatic voltage regulator that is connected to the excitation coil and controls the output voltage generated from the excitation coil so that the final output voltage is selectively variable and converted; And
A digital power generation automatic voltage control system comprising a digital output control unit circuit-connected to the excitation coil and passing a voltage output within a preset limit range so that a final output voltage is substantially uniformly output. The method of claim 1,
The digital automatic voltage regulator is
An input sensing unit connected to the excitation coil in a circuit,
Circuit connected to the output terminal of the input detection unit to selectively increase the output value of the AC voltage generated from the excitation coil, and a voltage addition inverter circuit connected to the output terminal of the input detection unit to select the output value of the AC voltage generated from the excitation coil An output voltage control unit including a voltage drop transformer unit that decreases by
A rectifier circuit connected to the output terminal of the input sensing unit to selectively convert the AC voltage generated from the excitation coil into a DC voltage;
Digital power generation automatic voltage control system, characterized in that it comprises an output sensing unit circuit connected to the output terminal of the output voltage control unit. The method of claim 1,
The digital output control unit
A zero-crossing detection unit circuit-connected to the excitation coil and for real-time detection of a zero-crossing signal when an AC voltage is generated from the excitation coil,
Automatic digital power generation, characterized in that it comprises a limit setting unit that is connected to a circuit between the zero crossing detection unit and the rectification unit to substantially block noise by adjusting a voltage frequency in real time when the phase difference of the zero crossing signal deviates from a preset value. Voltage regulation system. The method of claim 1,
The power generation unit, the digital automatic voltage regulator and the digital output control unit further comprises a fault detection unit for automatically determining whether or not a failure of the zero crossing detection unit, wherein the failure detection unit
When the zero-crossing signal is not detected for a predetermined time by the zero-crossing detection unit, a first fault signal is transmitted,
When the voltage measured by the input sensing unit connected to the excitation coil is not detected, a second fault signal is transmitted,
Transmitting a third fault signal when the voltage measured by the output sensing unit circuit connected to the output terminal of the digital automatic voltage regulator is not detected,
When the voltage measured by the output sensing unit and the output target value set by the operation unit are different from each other, a fourth fault signal is transmitted. 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 operation of an output voltage and an output mode;
A display unit connected to the digital signal processing unit and displaying an output voltage output from the output terminal of the digital automatic voltage regulator,
The digital signal processing unit
In an automatic mode, a first operation signal is applied to the digital automatic voltage regulator so that the number of revolutions per hour of the power generation unit and the output voltage are proportional,
In the 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 of revolutions per hour of the power generation unit,
A digital power generation automatic voltage control system, characterized in that applying a third operation signal to the digital automatic voltage regulator so that the number of revolutions per hour of the power generation unit and the output voltage are in inverse proportion to each other in a down mode.

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