WO2014010840A1 - Apparatus and method for controlling output voltage of permanent magnet generator for refrigerated vehicle - Google Patents

Apparatus and method for controlling output voltage of permanent magnet generator for refrigerated vehicle Download PDF

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Publication number
WO2014010840A1
WO2014010840A1 PCT/KR2013/005439 KR2013005439W WO2014010840A1 WO 2014010840 A1 WO2014010840 A1 WO 2014010840A1 KR 2013005439 W KR2013005439 W KR 2013005439W WO 2014010840 A1 WO2014010840 A1 WO 2014010840A1
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WIPO (PCT)
Prior art keywords
generator
output voltage
permanent magnet
magnetic flux
current
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PCT/KR2013/005439
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French (fr)
Korean (ko)
Inventor
윤상억
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Yoon Sang Eock
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Application filed by Yoon Sang Eock filed Critical Yoon Sang Eock
Priority claimed from KR20130070822A external-priority patent/KR101478771B1/en
Publication of WO2014010840A1 publication Critical patent/WO2014010840A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle

Definitions

  • the present invention relates to an apparatus and method for controlling an output voltage of a permanent magnet generator for a refrigeration vehicle, and more particularly, to supply power to a load while charging a battery while maintaining a constant output voltage of the generator, and to configure a control circuit.
  • the present invention relates to an apparatus and method for controlling output voltage of a permanent magnet generator for a refrigeration vehicle.
  • the refrigeration vehicle is formed in the form of a top vehicle provided with a loading unit, by using a cooling system to cool the inside of the loading unit to prevent the corruption of the cargo loaded in the loading unit during movement of the kind to maintain a freshness It is a vehicle.
  • the cooling system used in the refrigeration vehicle is provided such that a compressor, a condenser, and an evaporator are provided to supply cool air to the inside of the load unit by using a heat exchange action of the refrigerant through a cooling cycle consisting of compression, condensation, and expansion of the refrigerant.
  • the refrigeration vehicle is using a permanent magnet generator in order to improve the power generation efficiency.
  • the conventional permanent magnet generator is a structure in which voltage is generated in the stator in which the coil is wound when the rotor with the permanent magnet is attached, and its configuration is becoming more complicated for higher power generation efficiency, miniaturization, and high performance.
  • Korean Patent Laid-Open Publication No. 10-2003-0033032 discloses a "cooling system for a refrigerated / refrigerated vehicle equipped with a flux-controlled permanent magnet generator"
  • Patent Publication No. 10-1998-27468 discloses a "protection circuit. Voltage regulator of permanent magnet generator with "is disclosed.
  • the conventional voltage regulator of the vehicle generator converts the AC voltage generated by the generator into a DC voltage, converts the voltage into a constant voltage through a chopper control, and then uses a DC inverter to freeze the load. Since it converts and supplies AC 220V that can be used in the system, the number of electronic devices for chopper control increases, which causes a complicated circuit and a cost increase.
  • the present invention was developed to improve the conventional problems as described above, by detecting the magnetic flux and the number of revolutions of the rotor, and by using this to control the output voltage, the magnitude of the output voltage according to the change in the number of revolutions of the rotor It is an object of the present invention to provide an apparatus and method for controlling the output voltage of a permanent magnet generator for a refrigeration vehicle to keep the constant and to simplify the configuration of the control circuit for controlling the output voltage.
  • the present invention provides a generator having a permanent magnet in the rotor, a magnetic flux sensor for detecting the rotational speed of the rotor and the position of the permanent magnet provided in the generator, and converting a current generated from the generator. Receives signals from the generator current converter and generator, the magnetic flux sensor, and the generator current converter that charges the battery and supplies them to the vehicle's load, and supplies the generator output voltage to the generator.
  • an output voltage control device for a permanent magnet generator for a refrigeration vehicle including a control unit for controlling the generator current converter to control the generator current flux.
  • the present invention converts the three-phase AC current output from the generator into a direct current, AC / DC converter for generating a magnetic flux control signal for controlling the magnetic flux of the generator under the control of the controller; And it provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle comprising a power generation current conversion unit consisting of a DC / AC inverter for converting the DC current converted by the AC / DC converter into an alternating current to supply to the load.
  • control unit controls the AC / DC converter when the output voltage of the generator is less than the set value to apply a strong field current to the generator, and the weak field current through the AC / DC converter when the output voltage of the generator is above the set value It provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle to apply to the generator.
  • the present invention provides a control device for output voltage control of a permanent magnet generator for a refrigeration vehicle to limit the generation of the strong field current of the AC / DC converter when the control unit senses the rotational speed of the generator.
  • the present invention provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle that uses a load in a vehicle, or a load is not used in a vehicle and the controller applies a drive signal to a DC / AC inverter when the rotation speed of the generator is higher than a set value. to provide.
  • the present invention comprises the steps of checking the state of the magnetic flux sensor according to the start of the vehicle; Sensing the magnetic flux of the vehicle generator through the magnetic flux sensor to detect the rotational speed of the generator and the magnetic flux of the rotor; Sensing the output of the generator according to the rotational speed of the generator; And a generation control step of controlling the magnetic flux of the generator according to the output value of the generator to control the output value of the generator in a set output section, charging the battery, and supplying a driving current according to the use of the load of the vehicle. Provides an output voltage control method.
  • the present invention is a refrigeration vehicle for applying a field weakening current to the generator when the output voltage of the generator is higher than the upper limit of the set voltage in the power generation control step, and applying a strong field current to the generator when the output voltage of the generator is lower than the lower limit of the set voltage.
  • a refrigeration vehicle for applying a field weakening current to the generator when the output voltage of the generator is higher than the upper limit of the set voltage in the power generation control step, and applying a strong field current to the generator when the output voltage of the generator is lower than the lower limit of the set voltage.
  • the apparatus and method for controlling the output voltage of a permanent magnet generator for a refrigeration vehicle configured as described above, by detecting the magnetic flux and rotational speed of the rotor, it is possible to constantly control the output voltage of the generator, generator Since the output of the generator is controlled through the continuous control of the circuit, the circuit can be simplified.
  • FIG. 1 is a block diagram showing an output voltage control device of a permanent magnet generator for a refrigeration vehicle according to an embodiment of the present invention.
  • FIG. 2 is a circuit diagram showing an output voltage control device of a permanent magnet generator for a refrigeration vehicle according to an embodiment of the present invention.
  • FIG. 3 is a magnetic flux control characteristic diagram of a permanent magnet generator according to an exemplary embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing the configuration of a generator according to the present invention.
  • FIG. 5 is a cross-sectional view taken along the line A-A of FIG.
  • FIG. 6 is a perspective view showing a rotor configuration of a generator according to an embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a method of controlling an output voltage of a permanent magnet generator for a refrigeration vehicle according to an exemplary embodiment of the present invention.
  • FIGS. 1 to 6 an output voltage control apparatus of a permanent magnet generator for a refrigeration vehicle according to the present invention will be described.
  • the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle is a generator 110 is connected to the engine of the vehicle to generate a current, the generator 110 The magnetic flux detection sensor 120 for detecting the magnetic flux of the generator, the power generation current conversion unit 130 and the magnetic flux sensor 120 to convert the current generated in the generator 110 to supply to the refrigeration apparatus 10 of the load of the vehicle And a controller 140 for controlling the generation current converter 130 according to the magnetic flux sensing signal to be sensed.
  • the generator 110 includes a stator 111 mounted to the vehicle, and a rotor 113 rotatably positioned inside the stator 111 and connected to the crank shaft of the vehicle through a belt or chain method.
  • the stator 111 includes an iron piece core 111a coupled to an inner surface of the housing 110 of the generator 110, and a three-phase coil 111b wound around the iron piece core 111a.
  • stator 111 is formed so as to divide the iron core (111a) so as to easily combine the iron core (111a) in the housing and facilitate the winding of the coil (111b).
  • the iron piece core 111a according to the present embodiment is coupled to be disassembled and cooked so as to be firmly and easily coupled along the inner surface of the housing, and the outer surface thereof is supported by being in contact with the inner surface of the housing.
  • the coupling piece 111 is formed on one side so that the iron piece core 111a can be continuously coupled to each other, and the coupling groove 111c is inserted into the coupling protrusion 111c of the other iron piece core 111a adjacent to the other side. 111d) is formed.
  • stator 111 is firmly and easily installed on the inner surface of the housing by the coupling protrusion 111c and the coupling groove 111d of the iron piece core 111a.
  • the rotor 113 has a core 113a to which the rotating shaft is coupled and a permanent magnet 113b coupled to the core 113a. At this time, the permanent magnet 113b is coupled to be spaced apart along the circumferential direction of the core 113a.
  • the rotor 113 has a coupling hole 113c in which the permanent magnet 113b is inserted into and coupled to the core 113a so that the core 113a and the permanent magnet 113b are stably fixed.
  • the generator 110 forms a magnetic circuit in which the magnetic flux from the N pole of the permanent magnet 113b returns to the S pole through the iron piece core 111a of the stator 111 when the rotor 113 rotates.
  • the magnetic flux of this magnetic circuit interacts with the three-phase coil 111b wound on the iron piece core 111a to generate a three-phase alternating induced voltage in the coil 111b.
  • the three-phase AC induced voltage is converted into AC 220V through the power generation current converter 130 and supplied to the refrigerating device 10.
  • the magnetic flux sensor 120 detects a magnetic flux change of the permanent magnet 113b according to the rotation of the rotor 113 and transmits a magnetic flux detection signal to the controller 150.
  • the magnetic flux sensor 120 is installed on the side of the rotor 113 at intervals of 120 degrees to effectively detect the magnetic flux change of the permanent magnet 113b according to the rotation of the rotor 113.
  • the magnetic flux sensor 120 is coupled to the housing of the generator 110 to be positioned on the horizontal horizontal line of the rotor 113 on the side of the rotor 113.
  • the magnetic flux sensor 120 is located on the side of the rotor 113 because the magnetic flux strength of the permanent magnet 113b is formed stronger in the longitudinal direction than the radial direction of the rotor 113. This is to detect the change of magnetic flux more accurately.
  • the generation current converting unit 130 is controlled by the control unit 140 to convert the three-phase alternating current generated from the coil 111b of the generator 110 into direct current, and the AC / DC converter 131.
  • a DC / AC inverter 133 converts the DC current converted by the DC converter 131 into an alternating current and supplies the same to the refrigeration apparatus 10.
  • the generation current conversion unit 130 is a current sensor 131a for detecting the intensity of the current output from the strength of the current generated by the generator 10 AC / DC converter 131, AC / DC converter 131 It further includes a voltage sensor (131b) for detecting the intensity of the voltage output from.
  • the current sensor 131a and the voltage sensor 131b detect currents and voltages of the generator 10 and the AC / DC converter 131 and transmit them to the controller 140.
  • the AC / DC converter 131 converts the voltage of the alternating current generated from the generator 110 into a constant voltage through phase control through switching under the control of the controller 140, and then converts the voltage into a direct current. Output to (133).
  • the AC / DC converter 131 generates a magnetic flux control signal for controlling the magnetic flux of the generator 110 under the control of the controller 140.
  • two FETs are connected to each of the three-phase coils 111b of the generator 10 in parallel, and are connected to each other through the first gate drive 131a controlled by the controller 140. Each FET is controlled.
  • an insulated gate bipolar transistor may be used as the AC / DC converter 131 according to the present embodiment.
  • the DC / AC inverter 133 converts the DC current supplied from the AC / DC converter 131 into AC 220V which can be used by the refrigerator 10 and supplies it to the refrigerator 10.
  • the DC / AC inverter 133 includes a FET connected to each of the battery 150 and the refrigerating device 10, and each FET is connected through the second gate drive 133a controlled by the controller 140. Controlled.
  • the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle detects the voltage and voltage of the battery sensor 153, the freezing device 10 for detecting the current and voltage of the battery 150 It further comprises a load sensor 11 to.
  • the control unit 140 for controlling the generation current converter 130 is a detection signal of the magnetic flux sensor 120, the voltage sensor 131b, the current sensor 131b, the battery sensor 153 and the load sensor 11
  • the first gate drive 131a and the second gate drive 133a are controlled to control switching of the AC / DC converter 131 and the DC / AC inverter 133.
  • the controller 140 When the output voltage of the generator 10 is less than or equal to a set value, for example, 377V, the controller 140 outputs the strong field current, which is a magnetic flux control signal of the generator 110, from the AC / DC converter 131 to the generator 110.
  • the AC / DC converter 131 is controlled.
  • the controller 140 outputs the weak field current, which is a magnetic flux control signal of the generator 110, from the AC / DC converter 131 to the generator 110 when the output voltage of the generator 10 is 385V or more.
  • the AC / DC converter 131 is controlled.
  • the controller 140 controls the AC / DC converter 131 according to the rotation speed of the generator 110 together with the change in the magnetic flux of the generator 110.
  • the controller 140 controls the AC / DC converter 131 so that the generation of the strong field current of the AC / DC converter 131 is limited when the rotational speed of the generator 110 is higher than a set value, for example, 3000 rpm.
  • the controller 140 outputs the weak field current control of the generator 110 before the magnetic flux of the generator 110 reaches a maximum value, and outputs the strong field current control of the generator 110. Output after the flux has passed the maximum value.
  • controller 150 uses the refrigeration apparatus 10 (on) so that the power of the battery 150 is supplied to the refrigeration apparatus 10 regardless of whether the generator 110 is generated.
  • the AC inverter 133 is controlled.
  • controller 150 does not use the refrigeration apparatus 10 of the vehicle, and the AC / DC converter 131 and the DC / AC inverter 133 when the rotational speed of the generator 110 is set to, for example, 850 rpm or more. Apply the drive signal.
  • the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle boosts the DC power of the battery 150 to supply the DC / AC inverter 133 of the power generation current conversion unit 130 / DC converter 151 is further included.
  • the DC / DC converter 151 charges the battery 150 by converting a current supplied from the AC / DC converter 131 of the power generation current converter 130.
  • the control function of the DC / DC converter 151 may be implemented through the DC / AC inverter 133.
  • the controller 140 checks the state of the magnetic flux sensor 120 for detecting the state of the generator 110 (S12).
  • the controller 140 detects the rotational speed and the acceleration of the generator 110 through the signal output from the magnetic flux sensor 120 (S13). And it is determined whether the rotation speed of the generator 110 is 850rpm or more (S14), and if the output current and voltage of the generator 110 is detected (S15). At this time, the output current and voltage of the generator 110 is detected by the current sensor 131b and transmits the detection signal to the controller 140.
  • control unit 140 determines whether the output voltage of the generator 110 is a set value range (377V ⁇ 385V) through the detection signal of the current sensor (131b) (S16), more than the set voltage range (377V ⁇ 385V). If it is equal to or less than the output of the generator 110 is subtracted to the set voltage range (377V ⁇ 385V) (S17).
  • the AC / DC converter 131 applies a weak field current to the coil of the generator 110, and outputs the generator 110.
  • the AC / DC converter 131 applies a strong field current to the coil of the generator 110.
  • the field magnetic field current is applied to the coil of the generator 110
  • the field magnetic field current is applied before the magnetic flux of the generator 110 reaches a maximum value
  • the generator is applied when the strong field current is applied. After the magnetic flux of 110 reaches the maximum value, the strong field current is applied.
  • step (S15) and the generator control step (S17) of detecting the output current and voltage of the generator while charging the battery 150, the output of the generator 110 is frozen depending on whether or not the use of the refrigeration apparatus 10 as a load. To the device 10.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The present invention relates to an apparatus and method for controlling the output voltage of a permanent magnet generator for a refrigerated vehicle, which uniformly maintains the output voltage of the generator while charging a battery and simultaneously supplying power to a load, and which can simplify the structure of a control circuit. The apparatus comprises: said generator comprising a permanent magnet provided on a rotor; a magnetic flux detecting sensor provided on the generator for detecting the rotational speed of the rotor and the position of the permanent magnet; a generated current conversion unit for converting the current generated by the generator while charging the battery and simultaneously supplying power to the load of the vehicle; and a controller for controlling the magnetic flux of the generator by receiving signals outputted from the generator, the magnetic flux detecting sensor, and the generated current conversion unit, and controlling the generated current conversion unit according to the output voltage of the generator such that the output voltage of the generator is output as a set voltage.

Description

냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법Output voltage control device and method of permanent magnet generator for refrigeration vehicle
본 발명은 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법에 관한 것으로, 더욱 상세하게는 발전기의 출력전압을 일정하게 유지시키면서 배터리를 충전함과 동시에 부하로 전력을 공급하고, 제어회로의 구성을 단순화할 수 있도록 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and method for controlling an output voltage of a permanent magnet generator for a refrigeration vehicle, and more particularly, to supply power to a load while charging a battery while maintaining a constant output voltage of the generator, and to configure a control circuit. The present invention relates to an apparatus and method for controlling output voltage of a permanent magnet generator for a refrigeration vehicle.
일반적으로, 냉동 차량은 적재부가 마련된 탑차 형태로 이루어져, 냉각시스템을 이용하여 상기 적재부의 내부를 냉각시켜 차량의 이동 시에 적재부에 적재된 화물의 부패를 방지하여 신선도를 유지할 수 있도록 하는 일종의 특수차량이다.In general, the refrigeration vehicle is formed in the form of a top vehicle provided with a loading unit, by using a cooling system to cool the inside of the loading unit to prevent the corruption of the cargo loaded in the loading unit during movement of the kind to maintain a freshness It is a vehicle.
이러한, 냉동 차량에 이용되는 냉각시스템은 압축기, 응축기 및 증발기가 마련되어 냉매의 압축, 응축 및 팽창으로 이루어진 냉각사이클을 통한 냉매의 열교환 작용을 이용하여 적재부의 내부로 냉기를 공급할 수 있도록 구성된다.The cooling system used in the refrigeration vehicle is provided such that a compressor, a condenser, and an evaporator are provided to supply cool air to the inside of the load unit by using a heat exchange action of the refrigerant through a cooling cycle consisting of compression, condensation, and expansion of the refrigerant.
그리고 최근의 냉동 차량은 발전효율을 향상시키기 위해서 영구자석식 발전기를 많이 사용하고 있다.In recent years, the refrigeration vehicle is using a permanent magnet generator in order to improve the power generation efficiency.
통상의 영구자석식 발전기는 영구자석이 부착된 회전자를 회전시키면 코일이 권선된 고정자에서 전압이 발생하는 구조로 보다 높은 발전효율, 소형화, 고성능화를 위하여 그에 따른 구성이 보다 복잡해지고 있는 추세이다.The conventional permanent magnet generator is a structure in which voltage is generated in the stator in which the coil is wound when the rotor with the permanent magnet is attached, and its configuration is becoming more complicated for higher power generation efficiency, miniaturization, and high performance.
한편, 한국 공개특허공보 제10-2003-0033032호에는 “자속 제어형 영구자석식 발전기를 장착한 냉장/냉동차량의 냉각시스템”이 개시되어 있고, 공개특허공보 제10-1998-27468호에는 “보호회로를 갖춘 영구자석형 발전기의 전압조정기”가 개시되어 있다.On the other hand, Korean Patent Laid-Open Publication No. 10-2003-0033032 discloses a "cooling system for a refrigerated / refrigerated vehicle equipped with a flux-controlled permanent magnet generator", and Patent Publication No. 10-1998-27468 discloses a "protection circuit. Voltage regulator of permanent magnet generator with "is disclosed.
그런데, 상기와 같은 종래의 차량용 발전기의 전압조정장치는 발전기에서 발생하는 교류전압을 직류전압으로 변환하고, 이를 초퍼 제어(Chopper Control)를 통해 일정전압화 한 후, DC 인버터를 이용하여 부하인 냉동 시스템에 사용 가능한 AC 220V로 변환하여 공급하므로, 초퍼 제어를 위한 전자 소자의 수가 증가하여 회로가 복잡하고 원가가 상승하는 문제점이 있다.However, the conventional voltage regulator of the vehicle generator converts the AC voltage generated by the generator into a DC voltage, converts the voltage into a constant voltage through a chopper control, and then uses a DC inverter to freeze the load. Since it converts and supplies AC 220V that can be used in the system, the number of electronic devices for chopper control increases, which causes a complicated circuit and a cost increase.
본 발명은 상기와 같은 종래의 문제점들을 개선하기 위하여 개발된 것으로, 로터의 자속과 회전수를 감지하고, 이를 이용하여 출력전압을 제어할 수 있도록 함으로써, 로터의 회전수 변화에 따른 출력전압의 크기를 일정하게 유지함은 물론 출력전압을 제어하는 제어회로의 구성을 단순화할 수 있도록 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법을 제공하는데 그 목적이 있다.The present invention was developed to improve the conventional problems as described above, by detecting the magnetic flux and the number of revolutions of the rotor, and by using this to control the output voltage, the magnitude of the output voltage according to the change in the number of revolutions of the rotor It is an object of the present invention to provide an apparatus and method for controlling the output voltage of a permanent magnet generator for a refrigeration vehicle to keep the constant and to simplify the configuration of the control circuit for controlling the output voltage.
상기한 목적을 달성하기 위하여 본 발명은 로터에 영구자석이 구비되는 발전기와, 이 발전기에 구비되어 로터의 회전속도와 영구자석의 위치를 감지하는 자속감지센서와, 발전기에서 발생하는 전류를 변환하여 배터리를 충전함과 동시에 차량의 부하로 공급하는 발전 전류 변환부 및 발전기, 자속감지센서, 발전 전류 변환부에서 출력되는 신호를 수신하고, 발전기의 출력전압이 설정 전압으로 출력되도록 발전기의 출력전압에 따라 발전 전류 변환부를 제어하여 발전기 자속을 제어하는 제어부를 포함하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 제공한다.In order to achieve the above object, the present invention provides a generator having a permanent magnet in the rotor, a magnetic flux sensor for detecting the rotational speed of the rotor and the position of the permanent magnet provided in the generator, and converting a current generated from the generator. Receives signals from the generator current converter and generator, the magnetic flux sensor, and the generator current converter that charges the battery and supplies them to the vehicle's load, and supplies the generator output voltage to the generator In accordance with the present invention provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle including a control unit for controlling the generator current converter to control the generator current flux.
또한, 본 발명은 발전기로부터 출력되는 3상의 교류 전류를 직류 전류로 변환하며, 제어부의 제어에 따라 발전기의 자속 제어를 위한 자속제어신호를 발생하는 AC/DC 컨버터; 및 이 AC/DC 컨버터에서 변환되는 직류 전류를 교류 전류로 변환하여 부하로 공급하는 DC/AC 인버터로 이루어진 발전 전류 변환부를 포함하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 제공한다.In addition, the present invention converts the three-phase AC current output from the generator into a direct current, AC / DC converter for generating a magnetic flux control signal for controlling the magnetic flux of the generator under the control of the controller; And it provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle comprising a power generation current conversion unit consisting of a DC / AC inverter for converting the DC current converted by the AC / DC converter into an alternating current to supply to the load.
또한, 본 발명은 제어부가 발전기의 출력 전압이 설정값 이하이면 AC/DC 컨버터를 제어하여 강계자전류를 발전기로 인가하고, 발전기의 출력 전압이 설정값 이상이면 AC/DC 컨버터를 통해 약계자전류를 발전기로 인가하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 제공한다.In addition, the present invention, the control unit controls the AC / DC converter when the output voltage of the generator is less than the set value to apply a strong field current to the generator, and the weak field current through the AC / DC converter when the output voltage of the generator is above the set value It provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle to apply to the generator.
또한, 본 발명은 제어부가 발전기의 회전속도를 감지하여 설정값 이상이면 AC/DC 컨버터의 강계자전류의 발생을 제한하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 제공한다.In addition, the present invention provides a control device for output voltage control of a permanent magnet generator for a refrigeration vehicle to limit the generation of the strong field current of the AC / DC converter when the control unit senses the rotational speed of the generator.
또한, 본 발명은 차량에서 부하를 사용하거나, 차량에서 부하를 미사용하면서 발전기의 회전속도가 설정값 이상이면 제어부가 DC/AC 인버터로 구동신호를 인가하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 제공한다.In addition, the present invention provides an output voltage control device for a permanent magnet generator for a refrigeration vehicle that uses a load in a vehicle, or a load is not used in a vehicle and the controller applies a drive signal to a DC / AC inverter when the rotation speed of the generator is higher than a set value. to provide.
또한, 본 발명은 차량의 시동이 걸림에 따라 자속감지센서의 상태를 체크하는 단계; 자속감지센서를 통해 차량 발전기의 자속을 감지하여 발전기의 회전속도 및 로터의 자속을 감지하는 단계; 발전기의 회전속도에 따라 발전기의 출력을 감지하는 단계; 및 발전기의 출력값에 따라 발전기의 자속을 제어하여 발전기의 출력값을 설정 출력 구간으로 제어하면서 배터리를 충전하고, 차량의 부하 사용 여부에 따라 구동전류를 공급하는 발전 제어 단계를 포함하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 방법을 제공한다.In addition, the present invention comprises the steps of checking the state of the magnetic flux sensor according to the start of the vehicle; Sensing the magnetic flux of the vehicle generator through the magnetic flux sensor to detect the rotational speed of the generator and the magnetic flux of the rotor; Sensing the output of the generator according to the rotational speed of the generator; And a generation control step of controlling the magnetic flux of the generator according to the output value of the generator to control the output value of the generator in a set output section, charging the battery, and supplying a driving current according to the use of the load of the vehicle. Provides an output voltage control method.
또한, 본 발명은 발전 제어 단계에서 발전기의 출력 전압이 설정 전압의 상한값 이상이면 발전기로 약계자전류를 인가하고, 발전기의 출력 전압이 설정 전압의 하한값 이하이면 발전기로 강계자전류를 인가하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 방법을 제공한다.In addition, the present invention is a refrigeration vehicle for applying a field weakening current to the generator when the output voltage of the generator is higher than the upper limit of the set voltage in the power generation control step, and applying a strong field current to the generator when the output voltage of the generator is lower than the lower limit of the set voltage. Provides a method of controlling the output voltage of a permanent magnet generator.
상기와 같이 구성되는 본 발명에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법에 의하면, 로터의 자속과 회전수를 감지하고, 이를 이용하여 발전기의 출력전압을 일정하게 제어할 수 있고, 발전기의 지속 제어를 통해 발전기의 출력을 제어하므로, 회로를 단순화할 수 있는 이점이 있다.According to the apparatus and method for controlling the output voltage of a permanent magnet generator for a refrigeration vehicle according to the present invention configured as described above, by detecting the magnetic flux and rotational speed of the rotor, it is possible to constantly control the output voltage of the generator, generator Since the output of the generator is controlled through the continuous control of the circuit, the circuit can be simplified.
도 1은 본 발명의 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 나타낸 블록도이다.1 is a block diagram showing an output voltage control device of a permanent magnet generator for a refrigeration vehicle according to an embodiment of the present invention.
도 2는 본 발명의 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 나타낸 회로도이다.2 is a circuit diagram showing an output voltage control device of a permanent magnet generator for a refrigeration vehicle according to an embodiment of the present invention.
도 3은 본 발명의 실시 예에 따른 영구자석식 발전기의 자속제어 특성도이다.3 is a magnetic flux control characteristic diagram of a permanent magnet generator according to an exemplary embodiment of the present invention.
도 4는 본 발명에 따른 발전기의 구성을 나타낸 단면도이다.4 is a cross-sectional view showing the configuration of a generator according to the present invention.
도 5는 도 4의 A-A선 단면도이다.5 is a cross-sectional view taken along the line A-A of FIG.
도 6은 본 발명의 실시 예에 따른 발전기의 로터 구성을 나타낸 사시도이다.6 is a perspective view showing a rotor configuration of a generator according to an embodiment of the present invention.
도 7은 본 발명의 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 방법을 설명하기 위한 흐름도이다.7 is a flowchart illustrating a method of controlling an output voltage of a permanent magnet generator for a refrigeration vehicle according to an exemplary embodiment of the present invention.
이하, 본 발명에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치 및 방법을 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, an apparatus and method for controlling an output voltage of a permanent magnet generator for a refrigeration vehicle according to the present invention will be described in detail with reference to the accompanying drawings.
먼저, 도 1 내지 도 6을 참조하면, 본 발명에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치를 설명한다.First, referring to FIGS. 1 to 6, an output voltage control apparatus of a permanent magnet generator for a refrigeration vehicle according to the present invention will be described.
도 1 내지 도 6에 도시된 바와 같이, 본 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치(100)는 차량의 엔진과 연결되어 전류를 발생하는 발전기(110), 이 발전기(110)의 자속을 감지하는 자속감지센서(120), 발전기(110)에서 발생하는 전류를 변환하여 차량의 부하인 냉동장치(10)로 공급하는 발전 전류 변환부(130) 및 자속감지센서(120)에서 감지하는 자속감지 신호에 따라 발전 전류 변환부(130)를 제어하는 제어부(140)를 포함한다.1 to 6, the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle according to the present embodiment is a generator 110 is connected to the engine of the vehicle to generate a current, the generator 110 The magnetic flux detection sensor 120 for detecting the magnetic flux of the generator, the power generation current conversion unit 130 and the magnetic flux sensor 120 to convert the current generated in the generator 110 to supply to the refrigeration apparatus 10 of the load of the vehicle And a controller 140 for controlling the generation current converter 130 according to the magnetic flux sensing signal to be sensed.
발전기(110)는 차량에 장착되는 스테이터(111)와, 이 스테이터(111)의 내부에 회전가능하게 위치하여 차량의 크랭크 축과 벨트 또는 체인방식을 통해 연결되는 로터(113)를 포함한다.The generator 110 includes a stator 111 mounted to the vehicle, and a rotor 113 rotatably positioned inside the stator 111 and connected to the crank shaft of the vehicle through a belt or chain method.
스테이터(111)는 발전기(110)의 하우징 내면에 결합되는 철편코어(111a)와, 이 철편코어(111a)에 권선되는 3상의 코일(111b)을 구비한다.The stator 111 includes an iron piece core 111a coupled to an inner surface of the housing 110 of the generator 110, and a three-phase coil 111b wound around the iron piece core 111a.
또한, 스테이터(111)는 철편코어(111a)를 하우징에 간편하게 결합함은 물론 코일(111b)의 권선을 용이하게 할 수 있도록 철편코어(111a)가 분할가능하게 형성된다. In addition, the stator 111 is formed so as to divide the iron core (111a) so as to easily combine the iron core (111a) in the housing and facilitate the winding of the coil (111b).
본 실시 예에 따른 철편코어(111a)는 하우징의 내면을 따라 견고하고 용이하게 결합되도록 분해 조리가능하게 결합되며, 그 외면이 하우징의 내면에 접촉되어 지지된다.The iron piece core 111a according to the present embodiment is coupled to be disassembled and cooked so as to be firmly and easily coupled along the inner surface of the housing, and the outer surface thereof is supported by being in contact with the inner surface of the housing.
구체적으로, 철편코어(111a)는 상호 연속되게 결합할 수 있도록 일측면에 결합돌기(111c)가 형성되고 타측면에 이웃하는 다른 철편코어(111a)의 결합돌기(111c)가 삽입되도록 결합홈(111d)이 형성된다.Specifically, the coupling piece 111 is formed on one side so that the iron piece core 111a can be continuously coupled to each other, and the coupling groove 111c is inserted into the coupling protrusion 111c of the other iron piece core 111a adjacent to the other side. 111d) is formed.
이로 인하여, 본 실시 예에 따른 스테이터(111)는 철편코어(111a)의 결합돌기(111c) 및 결합홈(111d)에 의해 철편코어(111a)가 하우징의 내면에 견고하고 용이하게 설치된다.For this reason, the stator 111 according to the present exemplary embodiment is firmly and easily installed on the inner surface of the housing by the coupling protrusion 111c and the coupling groove 111d of the iron piece core 111a.
로터(113)는 회전축이 결합되는 코어(113a)와 이 코어(113a)에 결합되는 영구자석(113b)을 구비한다. 이때, 영구자석(113b)은 코어(113a)의 원주방향을 따라 이격되게 결합된다.The rotor 113 has a core 113a to which the rotating shaft is coupled and a permanent magnet 113b coupled to the core 113a. At this time, the permanent magnet 113b is coupled to be spaced apart along the circumferential direction of the core 113a.
또한, 로터(113)는 코어(113a)와 영구자석(113b)이 안정적으로 고정되도록 코어(113a)에 영구자석(113b)이 삽입되어 결합되는 결합구멍(113c)이 형성된다.In addition, the rotor 113 has a coupling hole 113c in which the permanent magnet 113b is inserted into and coupled to the core 113a so that the core 113a and the permanent magnet 113b are stably fixed.
이와 같은 발전기(110)는 로터(113)가 회전하게 되면 영구자석(113b)의 N극으로부터 나는 자속이 스테이터(111)의 철편코어(111a)를 거쳐 S극으로 되돌아가는 자기회로를 형성하고, 이 자기회로의 자속이 철편코어(111a)에 권선된 3상 코일(111b)과 상호작용하여 코일(111b)에 3상의 교류 유기전압이 발생한다.The generator 110 forms a magnetic circuit in which the magnetic flux from the N pole of the permanent magnet 113b returns to the S pole through the iron piece core 111a of the stator 111 when the rotor 113 rotates. The magnetic flux of this magnetic circuit interacts with the three-phase coil 111b wound on the iron piece core 111a to generate a three-phase alternating induced voltage in the coil 111b.
그리고, 이 3상의 교류 유기전압은 발전 전류 변환부(130)를 통해 AC 220V로 변환되어 냉동장치(10)로 공급된다.The three-phase AC induced voltage is converted into AC 220V through the power generation current converter 130 and supplied to the refrigerating device 10.
자속감지센서(120)는 로터(113)의 회전에 따른 영구자석(113b)의 자속 변화를 감지하여 제어부(150)로 자속감지신호를 전송한다.The magnetic flux sensor 120 detects a magnetic flux change of the permanent magnet 113b according to the rotation of the rotor 113 and transmits a magnetic flux detection signal to the controller 150.
이러한, 자속감지센서(120)는 로터(113)의 회전에 따른 영구자석(113b)의 자속변화를 효과적으로 감지할 수 있도록 로터(113)의 측면에 120도 간격으로 3개가 설치된다. 또한, 자속감지센서(120)는 로터(113)의 측면에서 로터(113)의 길이방향 수평 선상에 위치하도록 발전기(110)의 하우징에 결합된다.Such, the magnetic flux sensor 120 is installed on the side of the rotor 113 at intervals of 120 degrees to effectively detect the magnetic flux change of the permanent magnet 113b according to the rotation of the rotor 113. In addition, the magnetic flux sensor 120 is coupled to the housing of the generator 110 to be positioned on the horizontal horizontal line of the rotor 113 on the side of the rotor 113.
이와 같이 자속감지센서(120)가 로터(113)의 측면에 위치하는 것은 영구자석(113b)의 자속 세기가 로터(113)의 직경방향보다 길이방향으로 더 강하게 형성되기 때문에 영구자석(113b)의 자속변화를 보다 정확하게 감지하기 위함이다.In this way, the magnetic flux sensor 120 is located on the side of the rotor 113 because the magnetic flux strength of the permanent magnet 113b is formed stronger in the longitudinal direction than the radial direction of the rotor 113. This is to detect the change of magnetic flux more accurately.
발전 전류 변환부(130)는 제어부(140)에 의해 제어되어 발전기(110)의 코일(111b)로부터 발생하는 3상의 교류 전류를 직류 전류로 변환하는 AC/DC 컨버터(131)와, 이 AC/DC 컨버터(131)에서 변환되는 직류 전류를 교류 전류로 변환하여 냉동장치(10)로 공급하는 DC/AC 인버터(133)를 포함한다.The generation current converting unit 130 is controlled by the control unit 140 to convert the three-phase alternating current generated from the coil 111b of the generator 110 into direct current, and the AC / DC converter 131. A DC / AC inverter 133 converts the DC current converted by the DC converter 131 into an alternating current and supplies the same to the refrigeration apparatus 10.
또한, 발전 전류 변환부(130)는 발전기(10)에서 발생하는 전류의 세기 AC/DC 컨버터(131)에서 출력되는 전류의 세기를 감지하는 전류센서(131a)와, AC/DC 컨버터(131)에서 출력되는 전압의 세기를 감지하는 전압센서(131b)를 더 포함한다.In addition, the generation current conversion unit 130 is a current sensor 131a for detecting the intensity of the current output from the strength of the current generated by the generator 10 AC / DC converter 131, AC / DC converter 131 It further includes a voltage sensor (131b) for detecting the intensity of the voltage output from.
전류센서(131a) 및 전압센서(131b)는 발전기(10) 및 AC/DC 컨버터(131)의 전류 및 전압을 감지하여 제어부(140)로 전송한다.The current sensor 131a and the voltage sensor 131b detect currents and voltages of the generator 10 and the AC / DC converter 131 and transmit them to the controller 140.
AC/DC 컨버터(131)는 제어부(140)의 제어에 따라 발전기(110)에서 발생하는 교류 전류의 전압을 스위칭을 통한 위상 제어를 통해 일정전압으로 변환한 후, 직류로 변환하여 DC/AC 인버터(133)로 출력한다.The AC / DC converter 131 converts the voltage of the alternating current generated from the generator 110 into a constant voltage through phase control through switching under the control of the controller 140, and then converts the voltage into a direct current. Output to (133).
또한, AC/DC 컨버터(131)는 제어부(140)의 제어에 따라 발전기(110)의 자속 제어를 위한 자속제어신호를 발생한다.In addition, the AC / DC converter 131 generates a magnetic flux control signal for controlling the magnetic flux of the generator 110 under the control of the controller 140.
이러한, AC/DC 컨버터(131)는 발전기(10)의 3상 코일(111b) 각각에 2개의 FET가 병렬로 연결되고, 제어부(140)에 의해 제어되는 제1 게이트 드라이브(131a)를 통해 상기 각각의 FET가 제어된다.In the AC / DC converter 131, two FETs are connected to each of the three-phase coils 111b of the generator 10 in parallel, and are connected to each other through the first gate drive 131a controlled by the controller 140. Each FET is controlled.
본 실시 예에 따른 AC/DC 컨버터(131)로는 IGBT(Insulated gate bipolar transistor)를 사용할 수 있다.As the AC / DC converter 131 according to the present embodiment, an insulated gate bipolar transistor (IGBT) may be used.
DC/AC 인버터(133)는 AC/DC 컨버터(131)로부터 공급되는 직류 전류를 냉동장치(10)가 사용가능한 AC 220V로 변환하여 냉동장치(10)로 공급한다. 이러한, DC/AC 인버터(133)는 배터리(150) 및 냉동장치(10) 각각에 연결되는 FET를 구비하고, 제어부(140)에 의해 제어되는 제2 게이트 드라이브(133a)를 통해 각각의 FET가 제어된다.The DC / AC inverter 133 converts the DC current supplied from the AC / DC converter 131 into AC 220V which can be used by the refrigerator 10 and supplies it to the refrigerator 10. The DC / AC inverter 133 includes a FET connected to each of the battery 150 and the refrigerating device 10, and each FET is connected through the second gate drive 133a controlled by the controller 140. Controlled.
한편, 본 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치(100)는 배터리(150)의 전류 및 전압을 감지하는 배터리 감지센서(153), 냉동장치(10)의 전압 및 전압을 감지하는 부하 감지센서(11)를 더 포함한다.On the other hand, the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle according to the present embodiment detects the voltage and voltage of the battery sensor 153, the freezing device 10 for detecting the current and voltage of the battery 150 It further comprises a load sensor 11 to.
발전 전류 변환부(130)를 제어하는 제어부(140)는 자속감지센서(120), 전압센서(131b), 전류센서(131b), 배터리 감지센서(153) 및 부하 감지센서(11)의 감지신호에 따라 제1 게이트 드라이브(131a) 및 제2 게이트 드라이브(133a)를 제어하여 AC/DC 컨버터(131) 및 DC/AC 인버터(133)의 스위칭을 제어한다.The control unit 140 for controlling the generation current converter 130 is a detection signal of the magnetic flux sensor 120, the voltage sensor 131b, the current sensor 131b, the battery sensor 153 and the load sensor 11 The first gate drive 131a and the second gate drive 133a are controlled to control switching of the AC / DC converter 131 and the DC / AC inverter 133.
이러한, 제어부(140)는 발전기(10)의 출력 전압이 설정값 예를 들어 377V 이하이면 AC/DC 컨버터(131)에서 발전기(110)의 자속제어신호인 강계자전류를 발전기(110)로 출력하도록 AC/DC 컨버터(131)를 제어한다.When the output voltage of the generator 10 is less than or equal to a set value, for example, 377V, the controller 140 outputs the strong field current, which is a magnetic flux control signal of the generator 110, from the AC / DC converter 131 to the generator 110. The AC / DC converter 131 is controlled.
또한, 제어부(140)는 발전기(10)의 출력 전압이 설정값 예를 들어 385V 이상이면 AC/DC 컨버터(131)에서 발전기(110)의 자속제어신호인 약계자전류를 발전기(110)로 출력하도록 AC/DC 컨버터(131)를 제어한다.In addition, the controller 140 outputs the weak field current, which is a magnetic flux control signal of the generator 110, from the AC / DC converter 131 to the generator 110 when the output voltage of the generator 10 is 385V or more. The AC / DC converter 131 is controlled.
또한, 제어부(140)는 발전기(110)의 자속변화와 함께 발전기(110)의 회전속도에 따라서도 AC/DC 컨버터(131)를 제어한다. 예를 들어 제어부(140)는 발전기(110)의 회전속도가 설정값 예를 들어 3000rpm 이상이면 AC/DC 컨버터(131)의 강계자전류 발생이 제한되도록 AC/DC 컨버터(131)를 제어한다.In addition, the controller 140 controls the AC / DC converter 131 according to the rotation speed of the generator 110 together with the change in the magnetic flux of the generator 110. For example, the controller 140 controls the AC / DC converter 131 so that the generation of the strong field current of the AC / DC converter 131 is limited when the rotational speed of the generator 110 is higher than a set value, for example, 3000 rpm.
더하여, 제어부(140)는 도 3에 도시된 바와 같이, 발전기(110)의 약계자전류 제어를 발전기(110)의 자속이 최대값에 이르기 전에 출력하고, 강계자전류 제어를 발전기(110)의 자속이 최대값을 지나간 이후에 출력한다.In addition, as shown in FIG. 3, the controller 140 outputs the weak field current control of the generator 110 before the magnetic flux of the generator 110 reaches a maximum value, and outputs the strong field current control of the generator 110. Output after the flux has passed the maximum value.
또한, 제어부(150)는 냉동장치(10)를 사용(on)하면 발전기(110)의 발전 여부와 관계없이 배터리(150)의 전력이 냉동장치(10)로 공급되도록 배터리(150) 및 DC/AC 인버터(133)를 제어한다.In addition, the controller 150 uses the refrigeration apparatus 10 (on) so that the power of the battery 150 is supplied to the refrigeration apparatus 10 regardless of whether the generator 110 is generated. The AC inverter 133 is controlled.
더하여, 제어부(150)는 챠량의 냉동장치(10)를 미사용하고, 발전기(110)의 회전속도가 설정값 예를 들어 850rpm 이상이면 AC/DC 컨버터(131) 및 DC/AC 인버터(133)로 구동신호를 인가한다.In addition, the controller 150 does not use the refrigeration apparatus 10 of the vehicle, and the AC / DC converter 131 and the DC / AC inverter 133 when the rotational speed of the generator 110 is set to, for example, 850 rpm or more. Apply the drive signal.
한편, 본 실시 예에 따른 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치(100)는 배터리(150)의 직류전원을 승압하여 발전 전류 변환부(130)의 DC/AC 인버터(133)로 공급하는 DC/DC 컨버터(151)를 더 포함한다.On the other hand, the output voltage control device 100 of the permanent magnet generator for a refrigeration vehicle according to the present embodiment boosts the DC power of the battery 150 to supply the DC / AC inverter 133 of the power generation current conversion unit 130 / DC converter 151 is further included.
DC/DC 컨버터(151)는 발전 전류 변환부(130)의 AC/DC 컨버터(131)로부터 공급되는 전류를 변환하여 배터리(150)를 충전한다. 이러한, DC/DC 컨버터(151)의 제어 기능은 DC/AC 인버터(133)를 통해 구현될 수도 있다.The DC / DC converter 151 charges the battery 150 by converting a current supplied from the AC / DC converter 131 of the power generation current converter 130. The control function of the DC / DC converter 151 may be implemented through the DC / AC inverter 133.
상기와 같이 구성되는 본 발명의 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치의 제어 방법을 도 1 내지 도 3, 도 7을 참조하여 설명한다.The control method of the output voltage control device of the permanent magnet generator for a refrigeration vehicle of the present invention configured as described above will be described with reference to FIGS. 1 to 3 and 7.
먼저, 차량의 시동이 걸리면(S11), 제어부(140)가 발전기(110)의 상태를 감지하는 자속 감지센서(120)의 상태를 확인한다(S12).First, when the vehicle is started (S11), the controller 140 checks the state of the magnetic flux sensor 120 for detecting the state of the generator 110 (S12).
이후, 제어부(140)가 자속 감지센서(120)에서 출력되는 신호를 통해 발전기(110)의 회전속도 및 가속을 감지한다(S13). 그리고 발전기(110)의 회전속도가 850rpm 이상인가를 판단하여(S14), 850rpm 이상이면 발전기(110)의 출력 전류 및 전압을 감지한다(S15). 이때, 발전기(110)의 출력 전류 및 전압은 전류센서(131b)에서 감지하고 그 감지신호를 제어부(140)로 전송한다.Thereafter, the controller 140 detects the rotational speed and the acceleration of the generator 110 through the signal output from the magnetic flux sensor 120 (S13). And it is determined whether the rotation speed of the generator 110 is 850rpm or more (S14), and if the output current and voltage of the generator 110 is detected (S15). At this time, the output current and voltage of the generator 110 is detected by the current sensor 131b and transmits the detection signal to the controller 140.
그러면, 제어부(140)가 전류센서(131b)의 감지신호를 통해 발전기(110)의 출력 전압이 설정값 구간(377V ~ 385V)인가를 판단하여(S16), 설정 전압 구간(377V ~ 385V)이상이거나 이하이면 발전기(110)의 출력을 설정 전압 구간(377V ~ 385V)으로 제한다(S17).Then, the control unit 140 determines whether the output voltage of the generator 110 is a set value range (377V ~ 385V) through the detection signal of the current sensor (131b) (S16), more than the set voltage range (377V ~ 385V). If it is equal to or less than the output of the generator 110 is subtracted to the set voltage range (377V ~ 385V) (S17).
발전기 제어 단계(S17)에서는 발전기(110)의 출력 전압이 설정 전압 구간의 상한값 이상이면 AC/DC 컨버터(131)에서 발전기(110)의 코일로 약계자전류를 인가하고, 발전기(110)의 출력 전압이 설정 전압 구간의 하한값 이하이면 AC/DC 컨버터(131)에서 발전기(110)의 코일로 강계자전류를 인가한다.In the generator control step S17, when the output voltage of the generator 110 is equal to or higher than the upper limit of the set voltage section, the AC / DC converter 131 applies a weak field current to the coil of the generator 110, and outputs the generator 110. When the voltage is less than or equal to the lower limit of the set voltage section, the AC / DC converter 131 applies a strong field current to the coil of the generator 110.
이러한, 발전기 제어 단계(S17)에서는 발전기(110)의 코일로 약계자전류를 인가할 때 발전기(110)의 자속이 최대값에 이르기 전에 약계자전류를 인가하고, 강계자전류를 인가할 때 발전기(110)의 자속이 최대값에 이른 후에 강계자전류를 인가한다.In the generator control step S17, when the field magnetic field current is applied to the coil of the generator 110, the field magnetic field current is applied before the magnetic flux of the generator 110 reaches a maximum value, and the generator is applied when the strong field current is applied. After the magnetic flux of 110 reaches the maximum value, the strong field current is applied.
한편, 발전기의 출력 전류 및 전압을 감지하는 단계(S15)와 발전기 제어 단계(S17)에서는 배터리(150)를 충전하면서 부하인 냉동장치(10)의 사용여부에 따라 발전기(110)의 출력을 냉동장치(10)로 공급한다.On the other hand, in the step (S15) and the generator control step (S17) of detecting the output current and voltage of the generator, while charging the battery 150, the output of the generator 110 is frozen depending on whether or not the use of the refrigeration apparatus 10 as a load. To the device 10.

Claims (7)

  1. 로터에 영구자석이 구비되는 발전기;A generator provided with a permanent magnet in the rotor;
    상기 발전기에 구비되어 상기 로터의 회전속도와 상기 영구자석의 위치를 감지하는 자속감지센서;A magnetic flux sensor provided at the generator to sense the rotational speed of the rotor and the position of the permanent magnet;
    상기 발전기에서 발생하는 전류를 변환하여 배터리를 충전함과 동시에 차량의 부하로 공급하는 발전 전류 변환부; 및A generation current converting unit converting a current generated by the generator to charge a battery and supply the load to a vehicle; And
    상기 발전기, 상기 자속감지센서, 상기 발전 전류 변환부에서 출력되는 신호를 수신하고, 상기 발전기의 출력전압이 설정 전압으로 출력되도록 상기 발전기의 출력전압에 따라 상기 발전 전류 변환부를 제어하여 상기 발전기 자속을 제어하는 제어부;Receives a signal output from the generator, the magnetic flux sensor, the generator current converter, and controls the generator current converter according to the output voltage of the generator so that the output voltage of the generator is output to a set voltage to the generator flux A control unit for controlling;
    를 포함하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치.Output voltage control device for a permanent magnet generator for a refrigeration vehicle comprising a.
  2. 제 1 항에 있어서, 상기 발전 전류 변환부는,The method of claim 1, wherein the power generation current converter,
    상기 발전기로부터 출력되는 3상의 교류 전류를 직류 전류로 변환하며, 상기 제어부의 제어에 따라 상기 발전기의 자속 제어를 위한 자속제어신호를 발생하는 AC/DC 컨버터; 및An AC / DC converter for converting three-phase alternating current output from the generator into a direct current and generating a magnetic flux control signal for controlling the magnetic flux of the generator according to the control of the controller; And
    상기 AC/DC 컨버터에서 변환되는 직류 전류를 교류 전류로 변환하여 상기 부하로 공급하는 DC/AC 인버터;A DC / AC inverter converting a DC current converted by the AC / DC converter into an AC current and supplying the load to the load;
    를 포함하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치.Output voltage control device for a permanent magnet generator for a refrigeration vehicle comprising a.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 제어부는 상기 발전기의 출력 전압이 설정값 이하이면 상기 AC/DC 컨버터를 제어하여 상기 자속제어신호인 강계자전류를 상기 발전기로 인가하며, 상기 발전기의 출력 전압이 설정값 이상이면 상기 AC/DC 컨버터를 통해 상기 자속제어신호로 약계자전류를 상기 발전기로 인가하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치.The control unit controls the AC / DC converter when the output voltage of the generator is less than or equal to the set value, and applies the strong field current, which is the magnetic flux control signal, to the generator. When the output voltage of the generator is greater than or equal to the set value, the AC / DC converter Apparatus for controlling the output voltage of a permanent magnet generator for a refrigeration vehicle, characterized in that for applying the field weakening current to the generator through the flux control signal.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 제어부는 상기 발전기의 회전속도가 설정값 이상이면 상기 AC/DC 컨버터의 강계자전류의 발생을 제한하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치.The control unit controls the output voltage of the permanent magnet generator for a refrigeration vehicle, characterized in that if the rotational speed of the generator is greater than or equal to a set value.
  5. 제 2 항에 있어서,The method of claim 2,
    상기 제어부는 상기 부하를 사용하거나, 상기 부하를 미사용하면서 상기 발전기의 회전속도가 설정값 이상이면 상기 DC/AC 인버터로 구동신호를 인가하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 장치.The control unit uses the load or the output voltage control device for a permanent magnet generator for a refrigeration vehicle, characterized in that for applying the drive signal to the DC / AC inverter when the rotational speed of the generator is higher than the set value while not using the load.
  6. 차량의 시동이 걸림에 따라 자속감지센서의 상태를 체크하는 단계;Checking the state of the magnetic flux sensor as the vehicle starts up;
    상기 자속감지센서를 통해 차량 발전기의 자속을 감지하여 상기 발전기의 회전속도 및 로터의 자속을 감지하는 단계;Sensing the magnetic flux of the vehicle generator through the magnetic flux sensor to detect the rotational speed of the generator and the magnetic flux of the rotor;
    상기 발전기의 회전속도에 따라 상기 발전기의 출력을 감지하는 단계; 및Sensing the output of the generator according to the rotational speed of the generator; And
    상기 발전기의 출력값에 따라 상기 발전기의 자속을 제어하여 상기 발전기의 출력값을 설정 출력 구간으로 제어하면서 배터리를 충전하고, 상기 차량의 부하 사용 여부에 따라 구동전류를 공급하는 발전 제어 단계;A generation control step of controlling the magnetic flux of the generator according to the output value of the generator to charge the battery while controlling the output value of the generator in a set output section, and supplying a driving current according to whether the load of the vehicle is used;
    를 포함하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 방법.Output voltage control method of a permanent magnet generator for a refrigeration vehicle comprising a.
  7. 제 6 항에 있어서,The method of claim 6,
    상기 발전 제어 단계에서는 상기 발전기의 출력 전압이 설정 전압의 상한값 이상이면 상기 발전기로 약계자전류를 인가하고, 상기 발전기의 출력 전압이 설정 전압의 하한값 이하이면 상기 발전기로 강계자전류를 인가하는 것을 특징으로 하는 냉동 차량용 영구자석식 발전기의 출력전압 제어 방법.In the power generation control step, the weak field current is applied to the generator when the output voltage of the generator is greater than or equal to the upper limit of the set voltage, and the strong field current is applied to the generator when the output voltage of the generator is less than or equal to the lower limit of the set voltage. The output voltage control method of the permanent magnet generator for refrigeration vehicles.
PCT/KR2013/005439 2012-07-13 2013-06-20 Apparatus and method for controlling output voltage of permanent magnet generator for refrigerated vehicle WO2014010840A1 (en)

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