IE37449B1 - Improvements in apparatus for the distribution of electrical power to a plurality of consuming units - Google Patents

Improvements in apparatus for the distribution of electrical power to a plurality of consuming units

Info

Publication number
IE37449B1
IE37449B1 IE485/73A IE48573A IE37449B1 IE 37449 B1 IE37449 B1 IE 37449B1 IE 485/73 A IE485/73 A IE 485/73A IE 48573 A IE48573 A IE 48573A IE 37449 B1 IE37449 B1 IE 37449B1
Authority
IE
Ireland
Prior art keywords
triacs
loads
switches
supplies
logic circuit
Prior art date
Application number
IE485/73A
Other versions
IE37449L (en
Original Assignee
St Pauls Eng Co Ltd
Forman G
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 St Pauls Eng Co Ltd, Forman G filed Critical St Pauls Eng Co Ltd
Publication of IE37449L publication Critical patent/IE37449L/en
Publication of IE37449B1 publication Critical patent/IE37449B1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/54—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads according to a pre-established time schedule
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/58—The condition being electrical
    • H02J2310/60—Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Ac-Ac Conversion (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

1394731 Controlling maximum power demand of AC loads ST PAULS ENG CO Ltd and G D FORMAN 27 March 1973 [27 March 1972] 14168/72 Heading H2H Apparatus for distributing power from an A.C. source to consumer loads L1-L4 comprises triacs T1-T4 and a logic circuit for supplying pulses at the zero crossings of the A.C. supply to switch on, in a programmable sequence, the triacs selected by the operation of individual switches S1-S4 associated with the loads. The loads may be storage heaters, the hot plates of an electric cooker or industrial melting pots and the logic circuit prevents the simultaneous connection of, for example, two or more loads to the mains to restrict the maximum power demand. A pulse generator Y supplies pulses at the mains frequency to gates M1-M4 and a frequency dividing counter X, connected to frequency dividing counters W, supplies three out of phase pulse trains on leads t3-t5. A flip-flop F1 supplies anti-phase pulse trains on leads t1, t2 and a frequency dividing counter Z supplies four out of phase pulse trains on leads t6-t9. The pulse trains are fed to data selectors H1-H4 which also receive logical "1" or "0" signals on four further inputs depending on whether the switches S1-S4 are open or closed. The gates M1-M4 are connected to the trigger electrodes of the triacs via circuits X1-X4 provided with transformer or optical isolators. Alternatively the gates M1-M4 and the circuits X1-X4 may be replaced by integrated circuit, zero voltage switches. The outputs of the data selectors steer pulses from the generator 7 to the triacs so that if only one of the switches S1-S4 is closed, the associated gate M1-M4 triggers the associated triac continuously wheras if two or more of the switches are closed the associated triacs are triggered in sequence. Modifications are described in which the logic circuit includes a Mobius counter and in which the logic circuit includes a ring counter connected as a shift register. The triacs may be replaced by thyristors or thyratrons. [GB1394731A]
IE485/73A 1972-03-27 1973-03-27 Improvements in apparatus for the distribution of electrical power to a plurality of consuming units IE37449B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1416872A GB1394731A (en) 1972-03-27 1972-03-27 Apparatus for the distribution of electrical power to a plurality of consuming units

Publications (2)

Publication Number Publication Date
IE37449L IE37449L (en) 1973-09-27
IE37449B1 true IE37449B1 (en) 1977-07-20

Family

ID=10036237

Family Applications (1)

Application Number Title Priority Date Filing Date
IE485/73A IE37449B1 (en) 1972-03-27 1973-03-27 Improvements in apparatus for the distribution of electrical power to a plurality of consuming units

Country Status (13)

Country Link
JP (1) JPS4947856A (en)
BE (1) BE797405A (en)
CA (1) CA1005862A (en)
DE (1) DE2315208A1 (en)
DK (1) DK138058B (en)
ES (1) ES413076A1 (en)
FR (1) FR2182900B1 (en)
GB (1) GB1394731A (en)
IE (1) IE37449B1 (en)
IT (1) IT979991B (en)
NL (1) NL7304231A (en)
NO (1) NO140695C (en)
SE (1) SE385639B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127543A (en) * 1978-03-14 1979-10-03 Thomas Donald George Method of and apparatus for supplying current to numerous electric loads
US4227062A (en) * 1978-05-31 1980-10-07 General Electric Company Optimum time ratio control system for microwave oven including food surface browning capability
US4188520A (en) * 1978-05-31 1980-02-12 General Electric Company Effective concurrent microwave heating and electrical resistance heating in a countertop microwave oven
US4198553A (en) * 1978-06-01 1980-04-15 General Electric Company Combination oven fully utilizing the capability of a limited power source
US4196330A (en) * 1978-06-01 1980-04-01 General Electric Company Combination oven fully utilizing the current-supplying capability of a power source
EP0031861A3 (en) * 1978-07-06 1981-09-09 Bernard Frere Process for regulating an electric heating system and device for putting it into use
FR2438954A1 (en) * 1978-10-12 1980-05-09 Brun Pierre Load limiter for multiple electric heater loads - uses triacs to chop half-cycles from each heater circuit in succession
AU6616081A (en) * 1980-01-15 1981-07-23 Thorn Domestic Appliances (Electrical) Ltd. Electric power control
DE3007041A1 (en) * 1980-02-26 1981-09-03 Zoran 7990 Friedrichshafen Gudelj Sequential switching circuit pulse generator and decoder driven - has decoder and demultiplexer to switch outputs individually one on at any one time
DE3045023A1 (en) * 1980-11-28 1982-07-01 Gerda 8000 München Schmidt CONTROL OF MULTIPLE ELECTRICAL APPARATUS COMBINED IN A TECHNICAL SYSTEM
FR2518350A1 (en) * 1981-12-14 1983-06-17 Girard Francois Low voltage heated carpet or curtain using mains - uses multiple thyristors supplying respective resistors with sequential voltage pulses having safe time averaged values
FR2559012A1 (en) * 1984-02-01 1985-08-02 Peron Pierre Device for programming the supply to electrical appliances of a dwelling.
FR2568081A1 (en) * 1984-07-19 1986-01-24 Tibiletti Societe Nouvelle Method of distributing electrical power after analysing the requirements in a heating installation comprising sets of electrical resistors and device for implementation
FR2574227B1 (en) * 1984-12-04 1989-02-24 Duhennois Pascal METHOD AND DEVICE FOR THE CYCLIC DISTRIBUTION OF ELECTRICAL ENERGY WITH CONTROLLED SIZE, FOR THE RATIONAL USE OF ELECTRIC HEATING IN PARTICULAR
FR2590741B1 (en) * 1985-11-26 1988-03-04 Eurotherm Automation Sa METHOD AND DEVICE FOR CONTROLLING THE SUPPLY OF LOADS FROM A THREE-PHASE NETWORK
DE3713835A1 (en) * 1987-04-24 1988-11-03 Beru Werk Ruprecht Gmbh Co A METHOD AND DEVICE FOR QUICKLY HEATING AN ELECTRIC HEATING DEVICE
DE4214612C2 (en) * 1992-05-02 2001-12-06 Philips Corp Intellectual Pty Frequency divider circuit
ES2304876B1 (en) * 2007-03-13 2009-09-28 Zyxtudio Diseño E Innovacion S.L. PROGRAMMABLE ELECTRICAL SEQUENCER AND ITS APPLICATION FOR THE COMBINATION AND BALANCE OF FRAGRANCES.
CN114300895B (en) * 2021-12-06 2023-11-17 六安市同心畅能电子科技有限公司 Wall socket circuit of energy-saving electric cooker

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521077A (en) * 1969-05-08 1970-07-21 Patterson Kelley Co Electrical distribution system

Also Published As

Publication number Publication date
NL7304231A (en) 1973-10-01
ES413076A1 (en) 1976-06-16
IE37449L (en) 1973-09-27
NO140695B (en) 1979-07-09
FR2182900A1 (en) 1973-12-14
CA1005862A (en) 1977-02-22
JPS4947856A (en) 1974-05-09
DE2315208A1 (en) 1973-10-11
DK138058B (en) 1978-07-03
DK138058C (en) 1978-11-20
BE797405A (en) 1973-09-27
FR2182900B1 (en) 1974-12-13
SE385639B (en) 1976-07-12
NO140695C (en) 1979-10-17
IT979991B (en) 1974-09-30
GB1394731A (en) 1975-05-21

Similar Documents

Publication Publication Date Title
IE37449B1 (en) Improvements in apparatus for the distribution of electrical power to a plurality of consuming units
Kelly et al. Multiphase space vector pulse width modulation
US3517300A (en) Power converter circuits having a high frequency link
GB1362849A (en) Static power conversion ciruit
US3388310A (en) Circuit arrangement for extinguishing controlled rectifiers in an inverter
GB1167566A (en) Method and Apparatus for Firing Inverters
Asabin et al. Control system of the thyristor voltage regulator
GB1467181A (en) Inverter arrangements
US3958131A (en) Solid state power control apparatus
US4260947A (en) Phase control circuit for regulating power
GB1083867A (en) Arrangements for the conversion of a direct voltage into a sinusoidal alternating voltage
CA1082770A (en) Variable speed, constant frequency induction generator system
US3436645A (en) Firing circuit for controlled electronic valves in the lines of a polyphase system
US3350621A (en) Independently controlled rectifier bridge converter
US3418560A (en) System for supplying reversible electric power to reactive loads
US3329831A (en) Electronic ring circuit comprising plurality of first and second switching means driven by overlapping a.c. waveforms
GB1236120A (en) Electric energy distribution control system
US3175129A (en) Magnet control circuit
GB1484458A (en) Speed control systems for electric motors
US3466466A (en) Static alternating current circuit breaking device
GB1207472A (en) Apparatus comprising an electric motor and a heating resistor
SU1448311A1 (en) Phase indicator
SU982174A1 (en) Self-sustained dc voltage-to-three-phase ac voltage converter for power supply of hysteresis motor
SU805276A1 (en) Ac voltage or current controller
GB1045253A (en) Electrical power and control apparatus