GB2022808A - Improvements in or relating to heat pumps - Google Patents

Improvements in or relating to heat pumps

Info

Publication number
GB2022808A
GB2022808A GB7917870A GB7917870A GB2022808A GB 2022808 A GB2022808 A GB 2022808A GB 7917870 A GB7917870 A GB 7917870A GB 7917870 A GB7917870 A GB 7917870A GB 2022808 A GB2022808 A GB 2022808A
Authority
GB
United Kingdom
Prior art keywords
compressor
motor
control equipment
relating
heat pumps
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.)
Granted
Application number
GB7917870A
Other versions
GB2022808B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LNC IND Ltd
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 GB2022808A publication Critical patent/GB2022808A/en
Application granted granted Critical
Publication of GB2022808B publication Critical patent/GB2022808B/en
Expired legal-status Critical Current

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 heat pump adaptable for air conditioning or refrigeration use by reversing flow through condenser 101 and evaporator 103 and having a compressor 109 driven by a polyphase electric induction motor 110, the heat transfer capacity and direction being controllable by controlling the speed and direction of the motor using control equipment to sequentially switch a DC power supply. Both the frequency and effective average phase voltage may be varied to suit the load. The compressor may be of the intermeshing rotor type having several stages, and the motor and compressor are mounted in a sealed casing. The control equipment comprises an electric logic system. <IMAGE>
GB7917870A 1978-06-01 1979-05-23 Heat pumps Expired GB2022808B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2022808A true GB2022808A (en) 1979-12-19
GB2022808B GB2022808B (en) 1982-11-17

Family

ID=3767591

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7917871A Expired GB2022942B (en) 1978-06-01 1979-05-23 Control system
GB7917870A Expired GB2022808B (en) 1978-06-01 1979-05-23 Heat pumps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7917871A Expired GB2022942B (en) 1978-06-01 1979-05-23 Control system

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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085285A1 (en) * 1981-12-18 1983-08-10 Institut Cerac S.A. Compressor drive system
EP1028013A1 (en) * 1995-11-13 2000-08-16 O'Donnell, Dennis W. Air conditioner for a motor vehicle
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

Families Citing this family (9)

* 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
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
JP2002243246A (en) * 2001-02-15 2002-08-28 Sanden Corp Air conditioner
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085285A1 (en) * 1981-12-18 1983-08-10 Institut Cerac S.A. Compressor drive system
EP1028013A1 (en) * 1995-11-13 2000-08-16 O'Donnell, Dennis W. Air conditioner for a motor vehicle
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

Also Published As

Publication number Publication date
IL57441A (en) 1982-08-31
CH633393A5 (en) 1982-11-30
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
SE7904842L (en) 1979-12-02
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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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee