DE102012010092A1 - Controller for use in controlling system for controlling motor of compressor i.e. variable speed compressor, has power factor correction unit including compensation transducer and providing power supply to inverter - Google Patents

Controller for use in controlling system for controlling motor of compressor i.e. variable speed compressor, has power factor correction unit including compensation transducer and providing power supply to inverter

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Publication number
DE102012010092A1
DE102012010092A1 DE102012010092A DE102012010092A DE102012010092A1 DE 102012010092 A1 DE102012010092 A1 DE 102012010092A1 DE 102012010092 A DE102012010092 A DE 102012010092A DE 102012010092 A DE102012010092 A DE 102012010092A DE 102012010092 A1 DE102012010092 A1 DE 102012010092A1
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Germany
Prior art keywords
compressor
power factor
motor
compensation
factor correction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE102012010092A
Other languages
German (de)
Inventor
Rune Thomsen
Claus Schmidt
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Secop GmbH
Original Assignee
Secop GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DKPA201100408 priority Critical
Priority to DKPA201100408 priority
Application filed by Secop GmbH filed Critical Secop GmbH
Publication of DE102012010092A1 publication Critical patent/DE102012010092A1/en
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208Arrangements for improving power factor of AC input
    • H02M1/4225Arrangements for improving power factor of AC input using a non-isolated boost converter
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • H02M2003/1586Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion
    • Y02B70/12Power factor correction technologies for power supplies
    • Y02B70/126Active technologies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy
    • Y02P80/11Efficient use of energy of electric energy
    • Y02P80/112Power supplies with power electronics for efficient use of energy, e.g. power factor correction [PFC] or resonant converters

Abstract

The present invention relates to a controller and a method for controlling a motor (4), in particular a compressor motor. The regulator has an inverter (3) and a power factor correction (PFC) (2), and the power factor correction (2) has a compensation converter, and is provided for powering the inverter (3).
The regulator can reduce power consumption and increase the efficiency of the motor (4) as compared to prior art regulators. In addition, the controller can improve the electromagnetic interference performance of the motor (4) as compared with prior art regulators.

Description

  • The present invention relates to a controller and a method for controlling a motor, in particular a motor for a compressor. With the aid of the regulator and the method according to the invention, it is possible to increase the efficiency of the engine and to improve the electromagnetic interference power (EMI) of the engine.
  • An AC system that consumes power can be characterized by its "power factor" - the ratio between the actual power flowing into the load (the ability of the system to work) and the apparent power (the product of voltage and current at a given time) ). The power factor thus determined is between 0 and 1 and is a dimensionless number. Power stored in the system or current waveform distortions caused by non-linear loads can reduce the power factor because it assumes that the apparent power is greater than the actual power. In many cases, this situation is undesirable because the higher currents occurring at low power factors cause increased power losses and thus lower efficiencies.
  • Although passive components can be used to improve the power factor of a specific AC system, it is also possible to actively dynamically change the power factor. The circuit and control method used by such a circuit is known as a power factor correction (PFC) stage. The PFC stage allows control of the power consumed by a load in a manner that can change the power factor of the system. This means regulating the current or voltage waveform to behave as proportionally as possible to each other, thus providing a power factor as close to unity as possible.
  • It is common for motors to be controlled by compressors using pulse width modulation (PWM). In this case, an input voltage is rectified and the rectified voltage is supplied to a power factor correction (PFC) stage, e.g. In the form of a voltage amplifier converter. In the PFC stage, the voltage is stepped up and the step-up voltage is supplied to the motor control, where it is stepped down using an inverter.
  • Stepping up the voltage and then stepping down the voltage causes significant power losses in the system, especially because of over-switching of switches in the motor control during voltage step-downs.
  • It is an object of embodiments of the invention to provide a controller for controlling an engine capable of reducing power consumption compared with prior art regulators.
  • It is a further object of embodiments of the invention to provide a governor for an engine capable of increasing the efficiency of the engine as compared with prior art governors.
  • It is a further object of embodiments of the invention to provide a governor for an engine capable of improving electromagnetic interference (EMI) performance of the engine as compared with prior art governors.
  • It is a further object of embodiments of the invention to provide a method of controlling an engine that allows an increase in engine efficiency compared to prior art methods.
  • It is a further object of embodiments of the invention to provide a method of controlling an engine that allows for an improvement in the electromagnetic interference (EMI) performance of the engine as compared to prior art methods.
  • According to a first aspect, the invention provides a controller for controlling a motor which has an inverter and a power factor correction device, wherein the power factor correction device has a compensation converter and is provided for supplying power to the inverter.
  • The first aspect of the invention relates to a controller for controlling a motor, for. B. a device that is provided to control the operation of an engine. This can be z. B. also include the control of the engine speed.
  • The controller includes an inverter and a power factor correction (PFC) stage arranged to provide the PFC with power to the inverter. The inverter will normally be arranged so that it is directly connected to the motor, i. H. he delivers power to the engine.
  • The power factor correction device allows the control of the power consumed by a load in a manner that can change the power factor of the system. This means that the power factor correction device the current or Voltage waveform so that they are more proportional to each other than without power factor correction means and thus provide a power factor as close as possible to one. This is a great advantage because it reduces the losses that occur due to reactive currents that occur when the power factor is less than one. This improves performance.
  • The PFC has a compensation transformer. The compensation transformer is a step down DC-to-DC converter, and is known for its energy efficiency efficiency. It usually has a controllable switch, a diode, an inductor and a capacitor.
  • Since the power factor correction stage (PFC) has a compensation transformer, the voltage is not stepped up during the PFC stage, but only stepped down. This avoids the power losses that occur with conventional regulators when the voltage is first stepped up and then stepped down. Accordingly, the efficiency of the regulator is improved compared to prior art regulators. In addition, the use of a compensation transformer allows the motor to be controlled by pulse amplitude modulation (PAM). This has the advantage that the efficiency of the regulator is maximized, mainly because the fast switching required to control the motor by means of pulse width modulation (PWM) is avoided. This minimizes energy losses in the switches. In addition, controlling the motor using PAM improves the motor's EMI performance. So when a PFC is used with a compensation transformer, the efficiency of the regulator is increased and the power losses are minimized.
  • Overall, it is a great advantage that the PFC has a compensation transformer.
  • The compensation transformer may be a polyphase compensation converter, i. H. the compensation transformer may have two or more phases. In this case, two or more basic compensation conversion circuits are arranged in parallel between an input and a load, in this case a motor to be controlled. Multi-phase compensation converters are able to respond very quickly to load changes without increasing the switching losses. In addition, there is a significant reduction in switching ripple relative to a single phase compensation transformer configuration.
  • Alternatively, the compensation transformer may be a single-phase compensation converter.
  • The compensation transformer may have N phases, where N is an integer and N≥2, and each phase has at least one controllable switch, and the controllable switches are controlled in such a way that the on-phases of the controllable switches are at 360 ° / N intervals are shifted over a switching period of the compensation converter. According to this embodiment, the compensation converter is operated synchronously. This allows the compensation transformer to respond to load changes as quickly as if a single-phase compensation converter switched N times faster. The resulting switching losses are avoided. In addition, the load current is distributed to N phases, with the heat losses on each of the switches being distributed among several components.
  • At least one of the phases may have at least one additional controllable switch. Typically, each phase of a polyphase buck converter comprises a controllable switch, a diode, an inductor and a capacitor. In this embodiment, however, the diode of at least one of the phases is replaced by a controllable switch, and the relevant phase thus has two controllable switches, an inductor and a capacitor. As a result, the losses occurring in the compensation transformer are further reduced and the efficiency of the regulator is further improved.
  • The compensation transformer may additionally have at least one bridge rectifier. Preferably, the bridge rectifier is arranged between an input and the phase (s) of the compensation converter.
  • Each bridge rectifier may have four diodes arranged in a bridge structure. Alternatively, at least one of the bridge rectifiers may have at least one controllable switch. According to this embodiment, one or more of the diodes of at least one rectifier bridge is replaced by a controllable switch. This simplifies the control of the compensation transformer and reduces the losses incurred in the compensation transformer.
  • The present invention additionally relates to a compressor having a control system for controlling a motor of the compressor, the control system comprising a controller according to the first aspect of the invention. The compressor is preferably a variable speed compressor. For example, the compressor may be between a minimum speed and a maximum speed be controllable. The maximum speed can be x times the minimum speed, whereby it must be possible to control the power supply of the motor in a 1: x ratio, eg. B. 1: 5, 1: 3, 1: 2, etc. In the case where the maximum speed is twice the minimum speed, the compressor z. B. between 2000 U / min. and 4000 rpm. be controllable.
  • Alternatively, the compressor may be a fixed speed compressor.
  • According to a second aspect, the invention relates to a method for controlling an engine, comprising the following steps:
    • Supply of an input voltage to a regulator having a power factor correction device,
    • Down-conversion of the input voltage by means of a compensation transformer, which is part of the regulator, whereby an output voltage is achieved,
    • - Supplying the output voltage to a motor, wherein the speed of the motor is controlled.
  • In the method according to the second aspect of the invention, the input voltage is first supplied to a regulator having a power factor correction (PFC) stage and a compensation converter. The compensation transformer may preferably be part of the PFC. The input voltage is then stepped down with the aid of the compensation converter, whereby an output voltage is obtained, which is then supplied to the motor. The speed of the motor is controlled by means of the stepped-down output voltage.
  • The power factor correction stage allows the regulation of the power consumed by a load in a manner that can change the power factor of the system. Ie. the current or voltage waveforms are controlled to be more proportional to each other than without the power factor correction stage, thus providing a power factor as close to unity as possible. This is a great advantage because it reduces the losses due to reactive currents when the power factor is less than one. This improves the efficiency.
  • As described above, it is advantageous that a compensation transformer is used, since it only requires that the voltage be stepped down, that is, the voltage transformer is reduced. H. it is not necessary to first up-transform the tension, e.g. B. with the help of a voltage amplifier converter, and then down the voltage again. This increases system efficiency and reduces losses. This has been described in more detail above.
  • The step of supplying the output voltage to the motor may include controlling the speed of the motor by pulse amplitude modulation (PAM). As described above, this has the advantage that the efficiency of the regulator is maximized, mainly because the fast switching required in the control of the motor by means of pulse width modulation (PWM) is avoided. This minimizes the energy lost in the switches. In addition, controlling the motor using PAM improves the engine's EMI performance.
  • The method can be advantageously carried out with the aid of a regulator according to the first aspect of the invention.
  • The step of supplying the output voltage to the motor may include supplying the output voltage to a motor of a compressor.
  • The invention will be explained in more detail below with reference to the accompanying drawings. The drawings show:
  • 1 a block diagram of a controller according to an embodiment of the invention,
  • 2 1 is a circuit diagram of a compensation converter for use in a regulator according to a first embodiment of the invention;
  • 3a - 3c Circuit diagrams of a compensation transformer for use in a regulator according to a second embodiment of the invention,
  • 4 a circuit diagram of a compensation converter for use in a controller according to a third embodiment of the invention,
  • 5 a circuit diagram of a compensation converter for use in a controller according to a fourth embodiment of the invention,
  • 6 a circuit diagram of a compensation converter for use in a controller according to a fifth embodiment of the invention.
  • 1 Fig. 10 is a block diagram of a regulator according to an embodiment of the invention. An AC input voltage is a rectifier 1 supplied, and the rectified voltage is a power factor correction (PFC) 2 supplied with a compensation converter. In the compensation transformer, the voltage is stepped down and then an inverter 3 fed. The inverter 3 normally includes a number of controllable switches, e.g. B. six field effect transistors (FET), z. In the form of metal oxide semiconductor field effect transistors (MOSFET). The controllable switches of the inverter 3 are used to control a voltage supplied by the inverter 3 an engine 4 is supplied. In the in 1 shown regulator is the motor 4 a compressor motor.
  • 2 shows a circuit diagram of a compensation converter 5 for use in a regulator according to a first embodiment of the invention. The in 2 shown compensation transformer 5 is a doubly nested compensating transducer, ie it has two phases 6 . 7 on that between those with a load, in this case an inverter ( 3 in 1 ), connected input terminals 8th and output terminals 9 are connected in parallel.
  • Each of the phases 6 . 7 includes a controllable switch 10 . 11 , a diode 12 . 13 and an inductor 14 . 15 , The controllable switches 10 . 11 have the form of FET, and are controlled so synchronously that a switch 10 . 11 open, while the other switch 11 . 10 is closed, each switch for half the duration of a switching period of the compensation converter 5 closed is. This turns the on-phases of the controllable switches 10 . 11 is switched over a switching period of the compensation converter at 180 °, and each phase is operated with a duty cycle of 50%.
  • The compensation converter 5 also has a bridge rectifier 16 with four diodes on. The bridge rectifier 16 directs the AC input voltage equal and leads the phases 6 . 7 DC voltage too.
  • When the switch 10 closed and the switch 11 is open, is the inductor 14 connected to the voltage source, with energy in the inductor 14 is stored while the inductor 15 into the load, in this case the inverter ( 3 in 1 ). Accordingly, if the switch 11 closed and the switch 10 is open, is the inductor 15 connected to the voltage source, with energy in the inductor 15 is stored while the inductor 14 is discharged into the load.
  • It must be noticed that, even if 2 a compensation converter 5 with two phases 6 . 7 shows, it is not excluded that the compensation converter 5 may have three or more phases. In this case, the controllable switches of the individual phases should be controlled such that on-phases of the controllable switches over a switching period of the compensation converter 5 be switched at 360 ° / N intervals.
  • The 3a - 3c show circuit diagrams of a compensation transformer 5 for use in a regulator according to a second embodiment of the invention. Similar to the in 2a - 2c shown first embodiment, the compensation converter 5 after the 3a - 3c two phases 6 . 7 that between input terminals 8th and output terminals 9 are connected in parallel, and a bridge rectifier 16 on. Every phase 6 . 7 has a controllable switch 10 . 11 , a diode 12 . 13 and an inductor 14 . 15 on. The controllable switches are as indicated above 2 operated synchronously.
  • In the diagram of the 3a - 3c are both controllable switches 10 . 11 directly to the negative input terminal 8th connected, wherein the positive input terminal is connected directly to the positive output terminal. The in 3a - 3c shown compensation transformer 5 is easier to control than the compensation transformer 5 of the 2 , This is because a high-side driver is not required because the controllable switches 10 . 11 refer to a ground potential.
  • 3a simply shows the wiring diagram with the whole wiring between the components of the circuit. 3b shows a situation where the controllable switch 11 is closed while the controllable switch 10 is open. In the process, energy is in the inductor 15 stored, whereas previously in the inductor 14 stored energy is discharged into the load, in this case an inverter ( 3 in 1 ). Solid lines show parts of the circuit diagram through which a current flows, whereas dotted lines show parts of the circuit diagram through which no current flows.
  • According to shows 3c a situation where the controllable switch 10 is closed while the controllable switch 11 is open. In the process, energy is in the inductor 14 stored, whereas previously in the inductor 15 stored energy is discharged into the load. As described above, solid lines show parts of the circuit diagram through which a current flows, whereas dotted lines show parts of the circuit diagram through which no current flows.
  • 4 shows a circuit diagram of a compensation converter 5 for use in a third embodiment of the invention. The compensation converter 5 has two phases 6 . 7 that between input terminals 8th and output connections 9 are connected in parallel, and a bridge rectifier 16 with four diodes on. Each of the phase 6 . 7 includes a controllable switch 10 . 11 and an inductor 14 . 15 , and the controllable switches 10 . 11 are controlled synchronously as described above. The phases 6 . 7 are, as well as in 2 shown between the input terminals 8th and the output terminals 9 connected. In the diagram after 4 are the diodes 12 . 13 of the compensation transformer 5 to 2 through controllable switches 17 . 18 has been replaced in the form of FET. The additional controllable switches 17 . 18 make sure that in the compensation converter 5 resulting energy losses in relation to the compensation transformer 5 of the 2 be reduced because the energy loss in a controllable switch is smaller than the energy loss in a diode. The compensation converter 5 of the 4 is particularly suitable for systems that work with a low duty cycle.
  • 5 shows a circuit diagram of a compensation converter 5 for use in a regulator according to a fourth embodiment of the invention. The compensation converter 5 of the 5 is the compensation converter 5 of the 4 very similar. In the compensation converter 5 of the 5 however, are two of the diodes of the bridge rectifier 16 has been replaced by controllable switches in the form of FET. Because the energy losses caused by FET are considerably lower than the energy losses in a diode, it is to be expected that the energy losses in the compensation transformer 5 of the 5 lower than the energy losses in the compensation transformer 5 to 4 , This will increase the efficiency of the compensation transformer 5 elevated. Also, in 5 only the diodes have been replaced by FETs connected to low voltage because they are easier to control, as discussed above in connection with 3a described.
  • 6 shows a circuit diagram of a compensation converter 5 for use in a regulator according to a fifth embodiment of the invention. The compensation converter 5 of the 6 is the compensation transformer of the 4 and 5 very similar. In the compensation converter of 6 However, all four diodes of the bridge rectifier 16 have been replaced by controllable switches. This will be the compensation transformer 5 resulting energy losses even further reduced, the efficiency of the compensation converter is further increased. In addition, the compensation converter points 5 only one phase 6 on.

Claims (12)

  1. Controller for controlling an engine ( 4 ), where the controller is an inverter ( 3 ) and a power factor correction ( 2 ), and the power factor correction ( 2 ) a compensation transformer ( 5 ) and for the power supply of the inverter ( 3 ) is provided.
  2. Regulator according to Claim 1, characterized in that the compensation transformer ( 5 ) is a polyphase compensation converter.
  3. Regulator according to Claim 2, characterized in that the compensation transformer ( 5 ) N phases ( 6 . 7 ), where N is an integer and N ≥ 2, and each phase ( 6 . 7 ) at least one controllable switch ( 10 . 11 ), the controllable switches ( 10 . 11 ) can be controlled in such a way that one-phases of the controllable switches ( 10 . 11 ) over a switching period of the compensation transformer ( 5 ) at 360 ° / N intervals.
  4. Regulator according to Claim 3, characterized in that at least one of the phases ( 6 . 7 ) at least one additional controllable switch ( 17 . 18 ) having.
  5. Regulator according to one of the preceding claims, characterized in that the compensation transformer ( 5 ) at least one bridge rectifier ( 16 ) having.
  6. Regulator according to Claim 5, characterized in that at least one of the bridge rectifiers ( 16 ) has at least one controllable switch.
  7. Compressor with a control system for controlling an engine ( 4 ) of the compressor, characterized in that the control system comprises a controller according to one of the preceding claims.
  8. A compressor according to claim 7, wherein the compressor is a variable speed compressor.
  9. Method for controlling an engine ( 4 ), the method comprising the steps of: - supplying an input voltage to a regulator that performs a power factor correction ( 2 ), - down-converting the input voltage by means of a compensation transformer ( 5 ), which is part of the regulator, whereby an output voltage is obtained, - supply of the output voltage to the motor ( 4 ), whereby the speed of the engine ( 4 ) is controlled.
  10. Method according to claim 9, wherein the step of supplying the output voltage to the motor ( 4 ) the control of the speed of the engine ( 4 ) by means of pulse amplitude modulation.
  11. A method according to claim 9 or 10, wherein the method is carried out using a regulator according to any one of claims 1-6.
  12. The method of any of claims 9-11, wherein the step of supplying the output voltage to the engine ( 4 ) the supply of the output voltage to a motor ( 4 ) of a compressor.
DE102012010092A 2011-05-30 2012-05-23 Controller for use in controlling system for controlling motor of compressor i.e. variable speed compressor, has power factor correction unit including compensation transducer and providing power supply to inverter Ceased DE102012010092A1 (en)

Priority Applications (2)

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DKPA201100408 2011-05-30
DKPA201100408 2011-05-30

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DE102014219517A1 (en) * 2014-09-26 2016-03-31 Continental Automotive Gmbh Arrangement for providing electrical energy
US20160238284A1 (en) * 2015-02-13 2016-08-18 Mpi Corporation Adaptive temperature control system for cooling working fluid
EP2778426A3 (en) * 2013-03-14 2017-09-06 Wilo Se Electric motor with power electronic converter system and active cooling device that is powered by the same
WO2019091996A1 (en) * 2017-11-08 2019-05-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Capacitance reduction

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US10075065B2 (en) * 2016-04-15 2018-09-11 Emerson Climate Technologies, Inc. Choke and EMI filter circuits for power factor correction circuits
CN106533197A (en) * 2016-12-23 2017-03-22 上海三菱电机·上菱空调机电器有限公司 Variable-frequency air conditioner and frequency conversion circuit thereof and three-circuit staggered mode conversion circuit

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WO2003106826A2 (en) * 2002-06-13 2003-12-24 Pei Electronics, Inc. Improved pulse forming converter
KR20040034908A (en) * 2002-10-17 2004-04-29 엘지전자 주식회사 Driving apparatus of three phase induction motor
DE102005047373A1 (en) * 2005-09-28 2007-04-05 Schekulin, Dirk, Dr. Ing. Low-setting plate circuit consists of input and output connections with main branches between them as well as input-side condenser and output-side diode series connections
CN101350554A (en) * 2007-07-20 2009-01-21 叶燕霞 Multipath insulation output power supply
JP5402268B2 (en) * 2008-10-16 2014-01-29 富士電機株式会社 Interleave control power supply device, control circuit for the power supply device, and control method

Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP2778426A3 (en) * 2013-03-14 2017-09-06 Wilo Se Electric motor with power electronic converter system and active cooling device that is powered by the same
DE102014219517A1 (en) * 2014-09-26 2016-03-31 Continental Automotive Gmbh Arrangement for providing electrical energy
US20160238284A1 (en) * 2015-02-13 2016-08-18 Mpi Corporation Adaptive temperature control system for cooling working fluid
WO2019091996A1 (en) * 2017-11-08 2019-05-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Capacitance reduction

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