WO2010064318A1 - 同期機起動装置 - Google Patents
同期機起動装置 Download PDFInfo
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- WO2010064318A1 WO2010064318A1 PCT/JP2008/072143 JP2008072143W WO2010064318A1 WO 2010064318 A1 WO2010064318 A1 WO 2010064318A1 JP 2008072143 W JP2008072143 W JP 2008072143W WO 2010064318 A1 WO2010064318 A1 WO 2010064318A1
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- voltage
- output terminal
- synchronous machine
- power line
- output
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Classifications
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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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
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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
- H02P9/009—Circuit arrangements for detecting rotor position
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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
- H02P9/08—Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
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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
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/01—Motor rotor position determination based on the detected or calculated phase inductance, e.g. for a Switched Reluctance Motor
Definitions
- the present invention relates to a synchronous machine starting device, and more particularly to a synchronous machine starting device that detects a rotor position of the synchronous machine.
- Synchronous machine starting devices for starting synchronous machines such as generators and motors have been developed.
- a mechanical distributor that detects the position of the rotor of the synchronous machine with a proximity switch or the like is used.
- mechanical distributors are fragile and are susceptible to noise due to the large number of wires.
- the synchronous generator starting device includes a separately-excited converter including a separately-excited element such as a thyristor, and a separately-excited inverter including a separately-excited element such as a thyristor that converts DC power obtained by the converter into AC power. Start the synchronous generator with AC power obtained by the inverter.
- this synchronous generator starting device includes an AC voltage detector for detecting the voltage of the armature terminal of the synchronous generator, an AC current detector for detecting an inverter output current flowing from the inverter to the armature of the synchronous generator, From the detected AC current value of the inverter from the output current detector and the estimated value of the first synchronous generator rotation speed, the induced voltage induced in the armature winding of the synchronous generator by the field current of the synchronous generator , An induced voltage calculation circuit that calculates an in-phase component and a quadrature component with respect to the first reference phase, and a second reference phase that sets the quadrature component of the first reference phase of the induced voltage from the induced voltage calculation circuit to zero.
- a PLL circuit that outputs a second synchronous generator rotational speed estimated value.
- this synchronous generator starting device produces
- the second synchronous generator rotational speed estimated value is input to the first synchronous generator rotational speed estimated value of the induced voltage calculation circuit.
- an object of the present invention is to provide a synchronous machine starting device capable of stably starting a synchronous machine.
- a synchronous machine starting device converts a supplied power into an AC power and supplies the AC to an armature of the synchronous machine, and supplies the AC power from the power converter to the synchronous machine.
- a power conversion control unit that controls the power conversion unit based on the detected rotor position, and the AC voltage detection unit has a first output end and a second output end that are insulated from the power line.
- a voltage obtained by transforming an alternating voltage supplied through the power line at a first ratio is output from the first output terminal, and an alternating voltage supplied through the power line is transformed at a second ratio, and a positive predetermined voltage value. Less than or equal to negative negative voltage Detection from the second output terminal only, and further selecting either the voltage received from the first output terminal or the voltage received from the second output terminal and outputting to the rotor position detector A voltage selection unit is provided.
- the AC voltage detection unit has a first output terminal and a second output terminal that are insulated from the power line, and outputs a voltage obtained by stepping down the AC voltage supplied through the power line at a first ratio.
- the AC voltage that is output from the end and supplied through the power line is stepped down at a second ratio, further limited to a positive predetermined voltage value or lower and a negative predetermined voltage value or higher, and output from the second output end.
- the AC voltage detection unit includes a voltage transformer including a primary coil coupled to the power line, a secondary coil coupled to the detection voltage selection unit as a first output terminal, and an input terminal coupled to the power line. And a second output terminal that is insulated from the input terminal and coupled to the detection voltage selection unit, transforms the voltage at the input terminal, and further limits it to a positive predetermined voltage value or less and a negative predetermined voltage value or more. And a voltage conversion circuit that outputs from the second output terminal.
- the AC voltage detection unit includes a primary voltage coupled to the power line, a first voltage transformer including a secondary coil, a primary coil coupled to the secondary coil of the first voltage transformer, A second voltage transformer including a secondary coil coupled to the detection voltage selector as the first output terminal, and a second voltage transformer coupled to the secondary coil of the first voltage transformer and coupled to the detection voltage selector. And a clamp circuit that limits the voltage of the secondary coil to a positive predetermined voltage value or less and a negative predetermined voltage value or more and outputs from the second output terminal.
- the synchronous machine can be started stably.
- Inverter control unit power conversion control unit
- 51 detection voltage selection unit 51 detection voltage selection unit
- 61, 62 DCVT 71 power conversion unit
- 101, 102 synchronous machine starter CB control board
- LN power line VT1, VT2 voltage transformer
- L1, L3 L5, L7 primary coil
- L2, L4, L6, L8 secondary coil CP1, CP2 clamp circuit
- R1, R2, R3, R4, R5, R6 resistors ZD1, ZD2, ZD3, ZD4 Zener diode.
- FIG. 1 is a diagram showing the configuration of the synchronous machine starting device according to the first embodiment of the present invention.
- a synchronous machine starting device 101 includes a power conversion unit 71, an AC voltage detector 8, an AC current detector 9, a rotor position detection unit 11, an inverter control unit (power conversion control unit). 19).
- the power conversion unit 71 includes a converter 1, an inverter 2, and a DC reactor 3.
- the inverter control unit 19 includes a reference sine wave calculator 12, a gate pulse generator 13, and a ⁇ command circuit 14.
- the synchronous machine 4 and the motor M are connected via an axis SH.
- the synchronous machine 4 is a synchronous generator or a synchronous motor, for example, and has an armature and a rotor.
- the motor M rotates at a predetermined speed when the synchronous machine 4 is on standby. This rotational speed is low, for example several rpm. On the other hand, the normal rotation speed is 3000 rpm to 3600 rpm. For this reason, the voltage applied to the armature of the synchronous machine 4 at the time of start-up is very small as 1/1000 of the steady state as described above, and the detection voltage by the AC voltage detector 8 is often distorted. It is difficult to detect accurately.
- Converter 1 is composed of an element such as a thyristor, and converts AC power from AC power supply e1 into DC power.
- the inverter 2 is composed of an element such as a thyristor, and drives the synchronous machine 4 by converting DC power obtained by the converter 1 into AC power and supplying it to the armature of the synchronous machine 4.
- the converter 1 and the inverter 2 are connected via a DC reactor 3.
- the AC side of the inverter 2 is connected to the armature of the generator 4.
- the AC voltage detector 8 detects a three-phase AC voltage supplied to the armature of the generator 4 and outputs voltage detection values V1, V2, and V3 to the rotor position detection unit 11.
- the alternating current detector 9 detects a three-phase alternating current supplied to the armature of the generator 4 and outputs current detection values I1, I2, and I3 to the rotor position detection unit 11.
- the rotor position detector 11 detects the rotor position (phase) of the generator 4 based on the detection values received from the AC voltage detector 8 and the AC current detector 9, and the rotor position of the generator 4. Is output to the inverter control unit 19.
- the inverter control unit 19 controls the inverter 2 based on the rotor position signal POS received from the rotor position detection unit 11.
- the reference sine wave calculator 12 outputs a reference sine wave sin ⁇ based on the position signal POS received from the rotor position detection unit 11.
- the ⁇ command circuit 14 calculates the control advance angle command value ⁇ and outputs it to the gate pulse generator 13.
- Gate pulse generator 13 outputs a gate pulse to the elements in inverter 2 based on reference sine wave sin ⁇ received from reference sine wave calculator 12 and control advance angle command value ⁇ received from ⁇ command circuit 14. .
- FIG. 2 is a diagram showing in detail the configuration of the AC voltage detector 8 and its peripheral circuits.
- synchronous machine starting device 101 further includes a detection voltage selection unit 51, a control board CB, and a power line LN.
- the detection voltage selection unit 51 and the rotor position detection unit 11 are mounted on the control board CB.
- the AC voltage detector 8 includes voltage transformers VT1 and VT2 and DCVT (DC voltage transform) 61 and 62.
- Voltage transformer VT1 includes primary coils L1, L3 and secondary coils L2, L4.
- Voltage transformer VT2 includes primary coils L5 and L7 and secondary coils L6 and L8.
- the AC voltage transformer VT1 among the three-phase AC voltages supplied to the armature of the generator 4, the AC voltage obtained by transforming the AC voltage between the U phase and the V phase and the AC voltage between the V phase and the W phase at a predetermined transformation ratio. Is induced in the secondary coils L2 and L4.
- an AC voltage obtained by transforming the AC voltage induced in the voltage transformer VT1 with a predetermined transformation ratio is induced in the secondary coils L6 and L8, and this induced voltage is given to the detection voltage selection unit 51.
- a 3.6 kV AC voltage is applied to the primary side of the voltage transformer VT1, that is, the power line LN, and the AC voltage of 3.6 kV is stepped down from the secondary side of the voltage transformer VT1.
- AC voltage is output, and an AC voltage of several volts obtained by stepping down the AC voltage of 100 V is output from the secondary side of the voltage transformer VT2.
- the rotor position detector 11 can correctly recognize that the voltage is supplied to the armature of the generator 4.
- the DCVT 61 has an input end connected to the power line LN, and an output end that is insulated from the input end and connected to the detection voltage selection unit 51, and insulates the voltage at the input end. After appropriately transforming the voltage, the voltage is limited to a positive predetermined voltage value or less and a negative predetermined voltage value or more, and output from the output terminal to the detection voltage selection unit 51. More specifically, the DCVT 61 is a transformer insulation circuit (not shown) that transmits the AC voltage between the U-phase and the V-phase from the primary side to the secondary side among the three-phase AC voltages supplied to the armature of the generator 4. And a clamp circuit (not shown) for limiting the AC voltage transmitted by the transformer insulation circuit to a positive predetermined voltage value or less and a negative predetermined voltage value or more.
- the DCVT 62 has an input end connected to the power line LN, and an output end that is insulated from the input end and connected to the detection voltage selection unit 51, and insulates the voltage at the input end. After appropriately transforming the voltage, the voltage is limited to a positive predetermined voltage value or less and a negative predetermined voltage value or more, and output from the output terminal to the detection voltage selection unit 51. More specifically, the DCVT 62 is a transformer (not shown) that transmits the AC voltage between the V phase and the W phase from the primary side coil to the secondary side coil among the three phase AC voltages supplied to the armature of the generator 4. An insulation circuit and a clamp circuit (not shown) for limiting the AC voltage transmitted by the transformer insulation circuit to a positive predetermined voltage value or less and a negative predetermined voltage value or more are included.
- DCVTs 61 and 62 include a clamp circuit that clamps an output voltage greater than 10V to 10V.
- an AC voltage of several V to several hundreds V is applied to the input ends of the DCVTs 61 and 62, that is, the power line LN, and an AC voltage of several volts or less is output from the output ends of the DCVTs 61 and 62. Is done.
- an AC voltage of several kV is applied to the input ends of the DCVTs 61 and 62, ie, the power line LN, and an AC voltage of several kV is stepped down from the output ends of the DCVTs 61 and 62.
- an alternating voltage obtained by clamping a voltage exceeding ⁇ 10 V is output.
- the voltage at the time of starting the generator 4 is transmitted to the rotor position detector 11 at a level as large as possible within the voltage range handled in the control board CB.
- the accuracy is improved, and the detection accuracy of the rotor position detector 11 can be improved.
- the voltage supplied to the armature of the generator 4 increases beyond the voltage range handled in the control board CB.
- the circuit can prevent each circuit in the control board CB from being damaged due to an excessive voltage applied.
- the detection voltage selection unit 51 selects one of the voltage received from the voltage transformer VT2 and the voltage received from the DCVTs 61 and 62, and outputs the selected voltage to the rotor position detection unit 11. More specifically, the detection voltage selection unit 51 is activated when the generator 4 is started, for example, when the rotational speed of the rotor of the generator 4 is less than a predetermined value or the terminal voltage of the generator 4 is less than a predetermined value. In this case, the voltage received from DCVTs 61 and 62 is selected and output to rotor position detection unit 11.
- the detection voltage selection unit 51 is, for example, when the terminal voltage of the generator 4 becomes a predetermined value or more due to acceleration of the generator 4, or when the rotational speed of the rotor of the generator 4 is a predetermined value or more.
- the voltage received from the voltage transformer VT2 is selected and output to the rotor position detector 11.
- the AC voltage of a large level is appropriately stepped down by the voltage transformers VT1 and VT2 and transmitted to the rotor position detector 11. be able to. Further, by clamping a large level AC voltage by the DCVTs 61 and 62 and transmitting the clamped voltage to the rotor position detector 11, it is possible to prevent an excessive voltage from being applied to each circuit mounted on the control board CB. .
- the voltage supplied to the armature of the generator 4 at the time of starting is detected with high accuracy, and the position of the rotor of the generator 4 is accurately determined. Therefore, the generator 4 can be started stably.
- AC voltage detector 8 is configured to include voltage transformers VT1 and VT2 and DCVTs 61 and 62.
- the AC voltage detection unit 8 has a first output terminal and a second output terminal insulated from the power line LN, and outputs a voltage obtained by transforming an AC voltage supplied through the power line LN at a predetermined transformation ratio.
- the AC voltage output from the end to the detection voltage selection unit 51 and supplied through the power line LN is transformed at a predetermined transformation ratio, further limited to a positive predetermined voltage value or lower and a negative predetermined voltage value or higher to be the second Any circuit may be adopted as long as it is configured to output from the output terminal to the detection voltage selection unit 51.
- the power converter 71 was the structure containing the converter 1, the inverter 2, and the direct current
- the power conversion unit 71 may include a circuit such as a matrix converter that converts the supplied power into AC power and supplies it to the armature of the synchronous machine 4 instead of the converter 1, the inverter 2, and the DC reactor 3. That's fine.
- the present embodiment relates to a synchronous machine starting device in which a high voltage circuit is reduced as compared with the synchronous machine starting device according to the first embodiment.
- the contents other than those described below are the same as those of the synchronous machine starting device according to the first embodiment.
- FIG. 3 is a diagram showing the configuration of the synchronous machine starting device according to the second embodiment of the present invention.
- synchronous machine starting device 102 includes AC voltage detector 58 instead of AC voltage detector 8 as compared with the synchronous machine starting device according to the first embodiment of the present invention.
- AC voltage detector 58 includes voltage transformers VT1 and VT2 and clamp circuits CP1 and CP2.
- Clamp circuit CP1 includes resistors R1, R2, and R3 and Zener diodes ZD1 and ZD2.
- Clamp circuit CP2 includes resistors R4, R5, R6 and Zener diodes ZD3, ZD4.
- the resistor R1 includes a first end connected to the first end of the secondary coil L2 and the first end of the primary coil L5, the first end of the resistor R2, the cathode of the Zener diode ZD1, and the detection voltage. And a second end connected to the selector 51.
- the resistor R3 is connected to the first end connected to the second end of the secondary coil L2 and the second end of the primary coil L5, the second end of the resistor R2, the cathode of the Zener diode ZD2, and the detection voltage selection unit 51. And a second end.
- the anode of the Zener diode ZD1 and the anode of the Zener diode ZD2 are connected.
- the resistor R4 includes a first end connected to the first end of the secondary coil L4 and the first end of the primary coil L7, the first end of the resistor R5, the cathode of the Zener diode ZD3, and the detection voltage. And a second end connected to the selector 51.
- the resistor R6 is connected to the first end connected to the second end of the secondary coil L4 and the second end of the primary coil L7, the second end of the resistor R5, the cathode of the Zener diode ZD4, and the detection voltage selection unit 51. And a second end.
- the anode of the Zener diode ZD3 and the anode of the Zener diode ZD4 are connected.
- the clamp circuit CP1 restricts the alternating voltage induced in the secondary coil L2 to a positive predetermined voltage value or less and a negative predetermined voltage value or more, and outputs it to the detection voltage selection unit 51.
- the Zener diode ZD1 or ZD2 performs a constant voltage clamping operation, and the AC voltage induced in the secondary coil L2 is a positive predetermined voltage. It is clamped to an AC voltage that is equal to or less than a negative negative voltage value, for example, +10 V or less and ⁇ 10 V or more. Further, the AC voltage induced in the secondary coil L2 is divided by the resistors R1, R2, and R3, thereby preventing an excessive current from flowing through the Zener diodes ZD1 and ZD2 when the amplitude of the AC voltage is large. Further, even when the amplitude of the AC voltage induced in the secondary coil L2 is small by the resistors R1, R2, and R3, the AC voltage induced in the secondary coil L2 can be transmitted to the detection voltage selection unit 51.
- the clamp circuit CP2 limits the AC voltage induced in the secondary coil L4 to a positive predetermined voltage value or less and a negative predetermined voltage value or more, and outputs it to the detection voltage selection unit 51.
- the Zener diode ZD3 or ZD4 performs a constant voltage clamping operation, and the AC voltage induced in the secondary coil L4 is a positive predetermined voltage. It is clamped to an AC voltage that is equal to or less than a negative negative voltage value, for example, +10 V or less and ⁇ 10 V or more. Further, the AC voltage induced in the secondary coil L4 is divided by the resistors R4, R5, and R6, thereby preventing an excessive current from flowing through the Zener diodes ZD3 and ZD4 when the amplitude of the AC voltage is large. Further, even when the amplitude of the AC voltage induced in the secondary coil L4 is small by the resistors R4, R5, and R6, the AC voltage induced in the secondary coil L4 can be transmitted to the detection voltage selection unit 51.
- a 3.6 kV AC voltage is applied to the primary side of the voltage transformer VT1, that is, the power line LN, and the AC voltage of 3.6 kV is stepped down from the secondary side of the voltage transformer VT1.
- AC voltage is output.
- an AC voltage of 100V is applied to the input ends of the clamp circuits CP1 and CP2, and the AC voltage of 100V is divided by a resistor from the output ends of the clamp circuits CP1 and CP2, and a voltage exceeding ⁇ 10V is further clamped.
- AC voltage is output.
- the detection voltage selection unit 51 selects one of the voltage received from the voltage transformer VT2 and the voltage received from the clamp circuits CP1 and CP2, and outputs the selected voltage to the rotor position detection unit 11. More specifically, the detection voltage selection unit 51 is activated when the generator 4 is started, for example, when the rotational speed of the rotor of the generator 4 is less than a predetermined value, or the terminal voltage of the generator 4 is less than a predetermined value. In this case, the voltage received from the clamp circuits CP1 and CP2 is selected and output to the rotor position detector 11.
- the detection voltage selection unit 51 selects the voltage received from the voltage transformer VT2 during steady operation of the generator 4, for example, when the rotational speed of the rotor of the generator 4 is equal to or higher than a predetermined value, Output to the detector 11.
- the rotors are clamped by the clamp circuits CP1 and CP2 without stepping down the low level AC voltage by the voltage transformer VT2. It can be transmitted to the position detector 11.
- the high-level AC voltage is appropriately stepped down to the voltage range handled in the control board CB by the voltage transformers VT1 and VT2. Then, it can be transmitted to the rotor position detector 11.
- a large level voltage induced in the secondary coils L2 and L4 is clamped by the clamp circuits CP1 and CP2 and transmitted to the rotor position detection unit 11, so that each circuit mounted on the control board CB is excessively large. It is possible to prevent voltage from being applied.
- the voltage supplied to the armature of the generator 4 at the time of starting is detected with high accuracy, and the position of the rotor of the generator 4 is accurately determined. Therefore, the generator 4 can be started stably.
Abstract
Description
図1は、本発明の第1の実施の形態に係る同期機起動装置の構成を示す図である。
図2を参照して、同期機起動装置101は、さらに、検出電圧選択部51と、制御基板CBと、電力線LNとを備える。検出電圧選択部51および回転子位置検出部11が制御基板CBに実装されている。交流電圧検出器8は、電圧トランスVT1,VT2と、DCVT(直流ボルテージトランスフォーム)61,62とを含む。電圧トランスVT1は、1次コイルL1,L3と、2次コイルL2,L4とを含む。電圧トランスVT2は、1次コイルL5,L7と、2次コイルL6,L8とを含む。
本実施の形態は、第1の実施の形態に係る同期機起動装置と比べて高圧回路を削減した同期機起動装置に関する。以下で説明する内容以外は第1の実施の形態に係る同期機起動装置と同様である。
図3を参照して、同期機起動装置102は、本発明の第1の実施の形態に係る同期機起動装置と比べて、交流電圧検出器8の代わりに交流電圧検出器58を備える。
Claims (4)
- 供給された電力を交流電力に変換して同期機(4)の電機子に供給する電力変換部(71)と、
前記電力変換部(71)から前記同期機(4)へ前記交流電力を供給するための電力線(LN)と、
前記電力線(LN)を通して前記同期機(4)の電機子に供給される交流電圧を検出する交流電圧検出部(8,58)と、
前記検出された交流電圧に基づいて、前記同期機(4)の回転子位置を検出する回転子位置検出部(11)と、
前記検出された回転子位置に基づいて、前記電力変換部(71)を制御する電力変換制御部(19)とを備え、
前記交流電圧検出部(8,58)は、前記電力線(LN)と絶縁された第1の出力端および第2の出力端を有し、前記電力線(LN)を通して供給される交流電圧を第1の比率で変圧した電圧を前記第1の出力端から出力し、かつ前記電力線(LN)を通して供給される交流電圧を第2の比率で変圧し、さらに正の所定電圧値以下かつ負の所定電圧値以上に制限して前記第2の出力端から出力し、
さらに、
前記第1の出力端から受けた電圧および前記第2の出力端から受けた電圧のいずれか一方を選択して前記回転子位置検出部(11)へ出力する検出電圧選択部(51)を備える同期機起動装置。 - 前記交流電圧検出部(8,58)は、前記電力線(LN)と絶縁された第1の出力端および第2の出力端を有し、前記電力線(LN)を通して供給される交流電圧を第1の比率で降圧した電圧を前記第1の出力端から出力し、かつ前記電力線(LN)を通して供給される交流電圧を第2の比率で降圧し、さらに正の所定電圧値以下かつ負の所定電圧値以上に制限して前記第2の出力端から出力する請求の範囲第1項に記載の同期機起動装置。
- 前記交流電圧検出部(8)は、
前記電力線(LN)に結合された1次コイルと、前記第1の出力端として前記検出電圧選択部(51)に結合された2次コイルとを含む電圧トランス(VT1,VT2)と、
前記電力線(LN)に結合された入力端と、前記入力端と絶縁されかつ前記検出電圧選択部(51)に結合された前記第2の出力端とを有し、前記入力端の電圧を変圧し、さらに正の所定電圧値以下かつ負の所定電圧値以上に制限して前記第2の出力端から出力する電圧変換回路(61,62)とを含む請求の範囲第1項に記載の同期機起動装置。 - 前記交流電圧検出部(58)は、
前記電力線(LN)に結合された1次コイルと、2次コイルとを含む第1の電圧トランス(VT1)と、
前記第1の電圧トランス(VT1)の2次コイルに結合された1次コイルと、前記第1の出力端として前記検出電圧選択部(51)に結合された2次コイルとを含む第2の電圧トランス(VT2)と、
前記第1の電圧トランス(VT1)の2次コイルに結合され、前記検出電圧選択部(51)に結合された前記第2の出力端を有し、前記2次コイルの電圧を正の所定電圧値以下かつ負の所定電圧値以上に制限して前記第2の出力端から出力するクランプ回路(CP1,CP2)とを含む請求の範囲第1項に記載の同期機起動装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/072143 WO2010064318A1 (ja) | 2008-12-05 | 2008-12-05 | 同期機起動装置 |
EP08878578.7A EP2357723B1 (en) | 2008-12-05 | 2008-12-05 | Synchronous machine startup device |
JP2010541177A JP5427189B2 (ja) | 2008-12-05 | 2008-12-05 | 同期機起動装置 |
US13/132,792 US8362730B2 (en) | 2008-12-05 | 2008-12-05 | Synchronous machine starting device |
ES08878578.7T ES2551895T3 (es) | 2008-12-05 | 2008-12-05 | Dispositivo de arranque de máquina síncrona |
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PCT/JP2008/072143 WO2010064318A1 (ja) | 2008-12-05 | 2008-12-05 | 同期機起動装置 |
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US (1) | US8362730B2 (ja) |
EP (1) | EP2357723B1 (ja) |
JP (1) | JP5427189B2 (ja) |
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Cited By (2)
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US20120249034A1 (en) * | 2011-03-30 | 2012-10-04 | Pratt & Whitney Canada Corp. | Position sensing circuit for brushless motors |
CN104991188A (zh) * | 2015-07-16 | 2015-10-21 | 周海波 | 一种无刷电机缺相检测装置及方法 |
Families Citing this family (6)
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EP2472713B1 (en) | 2009-08-24 | 2018-03-07 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Synchronous machine starting device |
JP5548777B2 (ja) | 2010-10-15 | 2014-07-16 | 東芝三菱電機産業システム株式会社 | 同期機起動装置 |
US9157406B2 (en) * | 2014-02-05 | 2015-10-13 | General Electric Company | Systems and methods for initializing a generator |
GB201808798D0 (en) * | 2018-05-30 | 2018-07-11 | Rolls Royce Plc | Angle determination for a generator |
US11677230B2 (en) * | 2019-08-30 | 2023-06-13 | Eaton Intelligent Power Limited | Motor protection relay interface using magnetometer-based sensors |
CN111766515B (zh) * | 2020-07-08 | 2022-11-04 | 贵州航天林泉电机有限公司 | 一种高温高速起动发电机系统测试系统及其测试方法 |
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- 2008-12-05 JP JP2010541177A patent/JP5427189B2/ja active Active
- 2008-12-05 EP EP08878578.7A patent/EP2357723B1/en active Active
- 2008-12-05 ES ES08878578.7T patent/ES2551895T3/es active Active
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US20120249034A1 (en) * | 2011-03-30 | 2012-10-04 | Pratt & Whitney Canada Corp. | Position sensing circuit for brushless motors |
CN104991188A (zh) * | 2015-07-16 | 2015-10-21 | 周海波 | 一种无刷电机缺相检测装置及方法 |
Also Published As
Publication number | Publication date |
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JP5427189B2 (ja) | 2014-02-26 |
US20110298406A1 (en) | 2011-12-08 |
US8362730B2 (en) | 2013-01-29 |
ES2551895T3 (es) | 2015-11-24 |
EP2357723B1 (en) | 2015-10-07 |
EP2357723A4 (en) | 2014-07-02 |
JPWO2010064318A1 (ja) | 2012-05-10 |
EP2357723A1 (en) | 2011-08-17 |
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