SE7904842L - CONTROL SYSTEM FOR MULTIPHASE LOADS - Google Patents

CONTROL SYSTEM FOR MULTIPHASE LOADS

Info

Publication number
SE7904842L
SE7904842L SE7904842A SE7904842A SE7904842L SE 7904842 L SE7904842 L SE 7904842L SE 7904842 A SE7904842 A SE 7904842A SE 7904842 A SE7904842 A SE 7904842A SE 7904842 L SE7904842 L SE 7904842L
Authority
SE
Sweden
Prior art keywords
motor
transistors
pair
supply
switching
Prior art date
Application number
SE7904842A
Other languages
Swedish (sv)
Inventor
P A Emmerton
Original Assignee
Lnc Ind Ltd
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
Application filed by Lnc Ind Ltd filed Critical Lnc Ind Ltd
Publication of SE7904842L publication Critical patent/SE7904842L/en

Links

Classifications

    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025—Motor control arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/0271—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means the compressor allows rotation in reverse direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed

Abstract

A system for supplying a polyphase a.c. motor from a d.c. supply comprises a pair of switching transistors Q141, Q142, for each phase of the motor, one Q141 of the pair of transistors interconnecting the positive terminal of the d.c. supply B14 to a phase terminal A-I of the motor and the other Q142 of the pair of transistors interconnecting the negative terminal of the d.c. supply B14 to that phase terminal A-I of the motor, the transistors of the pair being switched alternately and the pairs sequentially by a control circuit which can control the rate of switching to control the frequency applied to the motor. The direction of rotation of the motor can be reversed by reversing the sequence of switching of the transistors of the pairs. The d.c. supply is a battery, and when the load over runs the motor it can act as a generator and power can be fed back to charge the battery. <IMAGE>
SE7904842A 1978-06-01 1979-06-01 CONTROL SYSTEM FOR MULTIPHASE LOADS SE7904842L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPD456878 1978-06-01

Publications (1)

Publication Number Publication Date
SE7904842L true SE7904842L (en) 1979-12-02

Family

ID=3767591

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7904843A SE7904843L (en) 1978-06-01 1979-06-01 HEAT PUMP INTENDED FOR AIR CONDITIONING OR COOLING END
SE7904842A SE7904842L (en) 1978-06-01 1979-06-01 CONTROL SYSTEM FOR MULTIPHASE LOADS

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE7904843A SE7904843L (en) 1978-06-01 1979-06-01 HEAT PUMP INTENDED FOR AIR CONDITIONING OR COOLING END

Country Status (13)

Country Link
JP (2) JPS558588A (en)
CA (2) CA1139361A (en)
CH (1) CH633393A5 (en)
DE (2) DE2921678A1 (en)
DK (2) DK227079A (en)
FR (2) FR2427564A1 (en)
GB (2) GB2022942B (en)
IL (2) IL57441A (en)
IT (2) IT1121073B (en)
NL (2) NL7904355A (en)
NZ (2) NZ190517A (en)
SE (2) SE7904843L (en)
ZA (2) ZA792499B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7907945L (en) * 1979-09-25 1981-03-26 Bo John Stefan Nystrom MULTI-PHASE GENERATION DEVICE DEVICE
EP0046147A1 (en) * 1980-08-11 1982-02-24 Heinrich Wächtler Device for moving liquid mediums, particularly in heat pumps
CH660100A5 (en) * 1981-12-18 1987-03-13 Cerac Inst Sa DEVICE FOR DRIVING A COMPRESSOR.
DE3239284A1 (en) * 1982-10-23 1984-05-03 DC-Aggregate Engineering AG, 6363 Fürigen THREE-PHASE ASYNCHRONOUS MOTOR
US4734628A (en) * 1986-12-01 1988-03-29 Carrier Corporation Electrically commutated, variable speed compressor control system
JP3156801B2 (en) * 1991-10-17 2001-04-16 本田技研工業株式会社 Automotive air conditioners
JP3267993B2 (en) * 1991-11-27 2002-03-25 本田技研工業株式会社 Air conditioning system for vehicles
JP3125198B2 (en) * 1991-12-04 2001-01-15 本田技研工業株式会社 Battery temperature control device for electric vehicle
US5927089A (en) * 1995-11-13 1999-07-27 O'donnell; Dennis W. Air conditioner for a motor vehicle
JP2002243246A (en) * 2001-02-15 2002-08-28 Sanden Corp Air conditioner
CN106524549A (en) * 2016-12-01 2017-03-22 广州华凌制冷设备有限公司 Constant-frequency air conditioning system and control method thereof
CN106969569A (en) * 2017-03-21 2017-07-21 合肥美的电冰箱有限公司 Refrigeration plant control method, system and refrigeration plant
CN110108748B (en) * 2019-06-05 2021-09-10 安徽理工大学 Frost heaving experimental device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1486811A (en) * 1973-09-03 1977-09-28 Nz Inventions Dev Authority Waveform synthesis using switching circuits
JPS5549509B2 (en) * 1973-12-28 1980-12-12
SE392766B (en) * 1974-04-18 1977-04-18 Projectus Ind Produkter Ab CONSTRUCTION SYSTEM, INCLUDING A HEAT PUMP AND A FUEL-LEADED HEAT BOILER WITH A RADIATOR CIRCUIT
DE2459769A1 (en) * 1974-12-18 1976-07-01 Krupp Gmbh CONTROL DEVICE FOR THE COOLING CAPACITY IN AN AIR-CONDITIONING SYSTEM OF A TRAIN CARRIAGE

Also Published As

Publication number Publication date
IL57441A (en) 1982-08-31
CH633393A5 (en) 1982-11-30
GB2022808A (en) 1979-12-19
NZ190517A (en) 1982-12-21
IT7923163A0 (en) 1979-05-31
IT7923164A0 (en) 1979-05-31
IL57442A (en) 1983-12-30
GB2022808B (en) 1982-11-17
IL57441A0 (en) 1979-09-30
JPS558293A (en) 1980-01-21
FR2427733A1 (en) 1979-12-28
ZA792500B (en) 1980-09-24
JPS558588A (en) 1980-01-22
IL57442A0 (en) 1979-09-30
CA1139361A (en) 1983-01-11
DE2921678A1 (en) 1979-12-06
NL7904354A (en) 1979-12-04
IT1121073B (en) 1986-03-26
FR2427564A1 (en) 1979-12-28
SE7904843L (en) 1979-12-02
DE2921729A1 (en) 1979-12-06
GB2022942A (en) 1979-12-19
DK227079A (en) 1979-12-02
DK226979A (en) 1979-12-02
IT1121316B (en) 1986-04-02
NZ190518A (en) 1982-12-21
CA1094836A (en) 1981-02-03
ZA792499B (en) 1980-08-27
GB2022942B (en) 1982-06-09
NL7904355A (en) 1979-12-04

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