GB1515577A - Electrical apparatus for supplying power at variable voltage and frequency - Google Patents

Electrical apparatus for supplying power at variable voltage and frequency

Info

Publication number
GB1515577A
GB1515577A GB37948/75A GB3794875A GB1515577A GB 1515577 A GB1515577 A GB 1515577A GB 37948/75 A GB37948/75 A GB 37948/75A GB 3794875 A GB3794875 A GB 3794875A GB 1515577 A GB1515577 A GB 1515577A
Authority
GB
United Kingdom
Prior art keywords
power supply
voltage
frequency
unit
supply units
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.)
Expired
Application number
GB37948/75A
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.)
Massachusetts Institute of Technology
Original Assignee
Massachusetts Institute of Technology
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 claimed from US515290A external-priority patent/US3909685A/en
Application filed by Massachusetts Institute of Technology filed Critical Massachusetts Institute of Technology
Publication of GB1515577A publication Critical patent/GB1515577A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/49—Combination of the output voltage waveforms of a plurality of converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

1515577 Power supply systems; control of A.C. motors; inverters MASSACHUSETTS INSTITUTE OF TECHNOLOGY 16 Sept 1975 [16 Oct 1974] 37948/75 Headings H2H H2J and H2F A power supply unit 104A1 comprises N stages connected in cascade, each stage having a voltage source B1-1 and switches S1-1 to S4-1 which enable the potential at an output terminal B to be positive, negative or equal to the potential at an input terminal A, the voltage source in at least one of the stages consisting of an assembly of sources the interconnection of which may be changed to vary the output voltage and current of the unit. As shown, two power supply units 104A1, 104A2 are provided so that when one unit supplies power to a load 6 such as a dwelling, the voltage sources B1-1 to B1-N in the other unit are charged by a generator 3 driven by a windmill 9. The voltage sources may be batteries, solar cells, capacitors, fuel cells or thermoelectric devices. The switches in each stage may be transistors or thyristors and are controlled by respective controllers PUC 1-1 to PUO 1-N which are in turn controlled by a master controller 2 connected to receive signals from the generator 3, The controllers enable the power supply units to provide a stepped alternating voltage of variable amplitude and frequency and which approximates a sine wave. In a power supply for a single- or three-phase motor of a vehicle, three sets of power supply units 104A1, 104A2 provide variable frequency and variable voltage to the motor, Figs. 8, 9 (not shown). The frequency and voltage variation for changing the speed of the motor is effected by the vehicle accelerator which sends signals to a master controller which in turn supplies control signals to the switches in the power supply units.
GB37948/75A 1974-10-16 1975-09-16 Electrical apparatus for supplying power at variable voltage and frequency Expired GB1515577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515290A US3909685A (en) 1974-01-14 1974-10-16 Electrical apparatus

Publications (1)

Publication Number Publication Date
GB1515577A true GB1515577A (en) 1978-06-28

Family

ID=24050741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37948/75A Expired GB1515577A (en) 1974-10-16 1975-09-16 Electrical apparatus for supplying power at variable voltage and frequency

Country Status (2)

Country Link
CA (1) CA1022617A (en)
GB (1) GB1515577A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261122A (en) * 1991-10-29 1993-05-05 Yang Tai Her A multi-voltage supply circuit
GB2265264A (en) * 1992-03-18 1993-09-22 Yang Tai Her Electric converter circuit
GB2265263A (en) * 1992-03-18 1993-09-22 Yang Tai Her Electric converter circuit
GB2265503A (en) * 1992-03-18 1993-09-29 Yang Tai Her Electric converter
GB2265504A (en) * 1992-03-18 1993-09-29 Yang Tai Her Electric converter
GB2265502A (en) * 1993-03-22 1993-09-29 Yang Tai Her Dc-ac converter
GB2265774A (en) * 1992-03-30 1993-10-06 Yang Tai Her Control of DC motors
JPH0711849U (en) * 1992-10-19 1995-02-21 タイ−ハー ヤン Operation control circuit device for stepped double voltage of battery set
WO2004012320A2 (en) * 2002-07-31 2004-02-05 Xp Plc Uninterruptible power supply apparatus and method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294824B (en) * 1991-10-29 1996-07-03 Tai Her Yang Solar power supply unit
GB2261122B (en) * 1991-10-29 1996-06-05 Yang Tai Her Stepped compound voltage power supply unit
GB2294826B (en) * 1991-10-29 1996-07-03 Tai Her Yang DC-AC converter
GB2261122A (en) * 1991-10-29 1993-05-05 Yang Tai Her A multi-voltage supply circuit
GB2294824A (en) * 1991-10-29 1996-05-08 Tai Her Yang Electric converter
GB2294826A (en) * 1991-10-29 1996-05-08 Tai Her Yang DC-AC converter
GB2265264A (en) * 1992-03-18 1993-09-22 Yang Tai Her Electric converter circuit
GB2265504A (en) * 1992-03-18 1993-09-29 Yang Tai Her Electric converter
GB2265503A (en) * 1992-03-18 1993-09-29 Yang Tai Her Electric converter
GB2265263A (en) * 1992-03-18 1993-09-22 Yang Tai Her Electric converter circuit
GB2265774A (en) * 1992-03-30 1993-10-06 Yang Tai Her Control of DC motors
GB2265774B (en) * 1992-03-30 1996-06-12 Yang Tai Her Stepped compound voltage power supply and field control arrangement for a DC motor driving circuit
JPH0711849U (en) * 1992-10-19 1995-02-21 タイ−ハー ヤン Operation control circuit device for stepped double voltage of battery set
GB2265502A (en) * 1993-03-22 1993-09-29 Yang Tai Her Dc-ac converter
WO2004012320A2 (en) * 2002-07-31 2004-02-05 Xp Plc Uninterruptible power supply apparatus and method
WO2004012320A3 (en) * 2002-07-31 2004-04-01 Xp Plc Uninterruptible power supply apparatus and method

Also Published As

Publication number Publication date
CA1022617A (en) 1977-12-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee