US3683258A - Autonomous device for the storage and use of electrical power - Google Patents

Autonomous device for the storage and use of electrical power Download PDF

Info

Publication number
US3683258A
US3683258A US120291A US12029171A US3683258A US 3683258 A US3683258 A US 3683258A US 120291 A US120291 A US 120291A US 12029171 A US12029171 A US 12029171A US 3683258 A US3683258 A US 3683258A
Authority
US
United States
Prior art keywords
generator
controlling
accumulator
main
current supplied
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 - Lifetime
Application number
US120291A
Other languages
English (en)
Inventor
Jacques Harbonn
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Application granted granted Critical
Publication of US3683258A publication Critical patent/US3683258A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Definitions

  • Cl ..H02j 7/00, H02p 9/04 means remotely actuated from the main Station 1 [58] Field of Search 307/46, 48; 320/3, 4, 21 61, means for maintaining a minimum charge level of the 320 317 20 322 7 8; 31 1 139.
  • a main electric power accumulator b. connection means between said generator and said main accumulator in order to charge the same with an electric current supplied by said generator c. means for connecting said main accumulator to said member to be controlled in order to supply said member with a control current said connecting means being actuated by the means for controlling said member d.
  • Operating means adapted to periodically actuate said connection means so as to maintain the charge of said accumulator at a level higher than a predetermined value sufficient for switching said member to be controlled to a security condition
  • connection means between the generator and said main accumulator comprises several channels each of which is provided with at least one intermediary element for the storage of the electric power supplied by said generator said connecting means establishing the connection of each intermediary element with said generator on the one hand and with said main accumulator on the other hand in order to provide for the charge of the latter with the current supplied by said intermediary element
  • said operating means comprises a program element for periodically and separately establishing the connection of each intermediary element on the one hand with said generator and on the other hand, with said main accumulator, according to a connection program which may be chosen in a set of different programs, provided at will by said programmation element said
  • FIG. 1 is a basic diagram of an autonomous power generating device
  • FIG. 2 diagrammatically shows an embodiment of a device according to this invention
  • FIGS. 3 4 and 5 show various programs of charge and discharge of the auxiliary batteries
  • the device according to the invention for feeding with electric power devices for operating members forming part of the equipment of a submerged producing well head and comprising an acoustic transmitter receiver of any known type remotely controlled from a main installation for example a surface floating installation which may be at a distance of several kilometers from the well head
  • the members to be controlled may consist of valves and it is desired that any failure which might occur in the equipment operation would result for obvious security requirements in the closure of the valves, so as to prevent any uncontrolled production FIG.
  • FIG. 1 diagrammatically illustrates an autonomous installation for the storage and use of electric power fed with an autonomous generator of low power generating capacity such as an isotopic electricity generator or a fuel cell
  • an autonomous generator of low power generating capacity such as an isotopic electricity generator or a fuel cell
  • the electricity generator of low power generating capacity shown with reference 1 is for example, an isotopic electricity generator which may supply an electric power of 25 watts with a current intensity of about 0.3 A.
  • This generator is connected through a cable 6 and a switch 4 to an auxiliary accumulator battery diagrammatically shown with reference 2
  • This battery is in turn connected to the main battery 3 of high power electrical accumulators through a cable 7 and a switch 5
  • the battery 3 supplies to the circuit of use 8 the required power through cable 9 l
  • the use of an auxiliary battery 2 is justified by the fact that generator 1 cannot directly charge the main battery 3
  • the charging conditions value of the current charging time and the like are dependent on the capacity of the battery to be charged
  • the value of the capacity of the main battery 3 is very high it might be convenient to make use of a plurality of auxiliary batteries 2 connected in series so that the charging conditions for each battery be fulfilled the operating principle of the assembly being unchanged The operation is very simple By closing the switch
  • FIG. 2 diagrammatically illustrates an autonomous device for the storage and use of power destined to the control of members of an immersed producing well head equipped with a transmitter receiver for acoustic remote control (by ultrasonic waves)
  • a transmitter receiver for acoustic remote control by ultrasonic waves
  • FIG. 2 diagrammatically illustrates an autonomous device for the storage and use of power destined to the control of members of an immersed producing well head equipped with a transmitter receiver for acoustic remote control (by ultrasonic waves
  • FIG. 2 diagrammatically illustrates an autonomous device for the storage and use of power destined to the control of members of an immersed producing well head equipped with a transmitter receiver for acoustic remote control (by ultrasonic waves
  • FIG. 2 diagrammatically illustrates an autonomous device for the storage and use of power destined to the control of members of an immersed producing well head equipped with a transmitter receiver for acoustic remote control (by ultrasonic waves
  • FIG. 2 diagrammatically illustrates an autonomous device for the storage and use of power
  • the power circuit comprises a main battery 3 of high capacity electrical accumulators
  • This battery 3 supplies power to the remote controlled transmitter receiver 9, through cable 10 and electronic devices which will be described below and insure the operation of the device
  • cable 10 connecting the principal battery to the transmitter receiver 9
  • the battery 3 also feeds driving elements 8 for actuating members not shown of the well head particularly valves
  • driving element 8 having two separate positions for example a position of opening (0) obtained when it is energized through cable 11 and switch 12 and a position of closure (F) when it is energized through cable 13 and switch 14
  • Elements l5 and 16 for the calibration of the electric current protect element 8 against any accidental excessive current value.
  • Switches 12 and 14 are operated through an actuation member 17 when the latter receives through cable 18 a corresponding control signal delivered by the remote control transmitter receiver 9 after reception of an order signal received from the main installation.
  • the actuation member 17 may also receive through cable 33 control signals supplied by the security system which is described hereinafter After the performance of the operation initiated by the reception of a control signal transmitted through any one of cables 18 and 33 the member 17 is adapted to transmit to the transmitter receiver 9, through cable 35 a coded signal indicating the new status of the controlled driving element 8
  • the charging circuit of the main battery 3 comprises an autonomous isotopic generator of small power 1(for example 25 watts) supplying an electric direct current of low intensity( for example about 300 m A).
  • the electric current supplied by generator 1 is maintained at a constant value by the current regulator 19 adapted to detect the presence of any short circuit in the discharge circuit of generator 1.
  • a device 20 indicating an open circuit placed in series with the discharge circuit of generator 1 detects the absence of current at the out put of generator 1
  • a current measuring device 21 is also placed in series with the discharge circuit of generator 1
  • the object of these device 19 20 and 21 will be indicated hereinafter
  • the output of the current measuring device 21 is connected to three circuits arranged in parallel(this number being not limitative).Each of said circuits comprises a switch (switches 4a, 4b, 4c) and connected in series with each of said switches auxiliary accumulators of the Cadmium-Nickel type 2a 2b and 2c respectively.'I'hese accumulators are charged by generator 1 in the manner indicated hereinafter.
  • the power After the power has been stored in the accumulators 2a, 2b, 2c it is transferred to the main battery through cables 7a 7b 7c and switches 5a 5b 5c respectively while maintaining substantially constant by means of the regulators 22 23 24,respectively the intensity of the current supplied by the accumulators 2a 2b and 2c a current detector 28 the purpose of which will be made apparent later being connected in series between these regulators and the main battery 3.
  • a clock 25 actuates at regular time intervals through cable 26 a program device 27 which by successively controlling,in a periodic manner the closure of switches 4a 4b and 4c causes the successive charge of the auxiliary accumulators 2a 2b and 2c the clock 25 further actuating the switches 5a 5b and 5c so that each of them is in open position during the charge of the corresponding auxiliary battery 2a 2b or 2c
  • the control of the switches 5a 5b and 50 can be performed by the program device 27
  • the charge of batteries 2a 2b and 2c is performed under a current intensity compatible with the charge current of said batteries and with the current supplied by the generator 1 For example this charge will be performed with a current of 0.3 A during 6 hours
  • the same is discharged in the main battery by closing the corresponding switch 5a 5b or 50 with the provision of preliminarily opening the corresponding switch 4a 4b or 4c This discharge is performed in a shorter time but with a higher current intensity compatible with the charge current of the main battery 3
  • auxiliary batteries 2a 2b 2c By the use of several auxiliary batteries 2a 2b 2c it is possible to establish a charge and discharge program for these batteries so that at any moment the generator 1 only charges an auxiliary battery and the charge of the main battery in performed from a single auxiliary battery.
  • FIG. 3 shows the normal charge and discharge program for the three auxiliary batteries versus time t the charging periods being shown by solid line portions and the discharging periods by dashed line portions.
  • control of the driving elements 8 must be very safe ie any failure detected in the power generating device must automatically switch elements 8 to a security condition
  • the security condition is that of closure of the valve
  • the power generating device must be adapted to be controlled remotely and at any instant
  • the current regulator 19 may be of a conventional type with transistors It further comprises a short circuit detector which when a short circuit occurs in the discharge circuit of generator 1 delivers a signal which through cable 29 connected to the transmitter 9 is transmitted at distance and displayed at the control station on the surface installation
  • the device 20 is a detector of an open circuit which may also be of a conventional type and delivers in open circuit a signal which is transmitted through cable 30 connected to the transmitter receiver 9 to the principal installation where the information is displayed.
  • the device 21 provides for the measurement of the charge current of the auxiliary accumulators For values of this current lower than a first predetermined value I (for example I, 200 mA or for values of this current higher than a second predetermined value I (for example 1 0.4 A the device generates a signal which is transmitted through cable 31 to a safety device 32 which delivers, in response thereto on the one hand a signal transmitted through cable 33 to the operating member 17 which switches to the security position (closure of the valves the driving element 8 by closure of the switch 14 and on the other hand, a signal, transmitted through cable 34,which stops the clock 25 there-by opening the switches 5a 5b 5c the clock 25 thus supplying to the device 27 a signal for opening the switches 4a 4b and 4c and disconnecting the regulators 22 23 24
  • a first predetermined value I for example I, 200 mA or for values of this current higher than a second predetermined value I (for example 1 0.4 A
  • the device generates a signal which is transmitted through cable 31 to a safety device 32 which
  • any failure in the discharge of an auxiliary battery 2a 2b 2c is detected by the current measuring device 28 which, for a value of the current lower than a predetermined value (for example I 1.4 A) generates a signal which is transmitted through cable 36 to the program device 27
  • This device acts through cable 37 on the charge circuit of that auxiliary battery 2a 2b or 20 ,where a failure of the charge has been detected by delivering a signal for locking the corresponding switch 4a 4b or 4c in open position and also controls through cable 38 by action on the corresponding regulator 22 23 or 24,the disconnection of said regulator Simultaneously the device passes to a new program stage of the charge cycle of the principal battery, using only the two remaining auxiliary batteries This new cycle is illustrated in FIG.
  • connection means between said generator and said main accumulator, providing for the charge of the latter with an electric current supplied by said generator; means for connecting said main accumulator to said member to be controlled in order to supply to said member a control current, said means for connecting being actuated by the means for controlling said member; operating means adapted to periodically actuate said connection means, so as to maintain the charge of said accumulator above a predetermined value which is sufficient to insure the switching to its security position of said member to be controlled;
  • safety means connected to said control means and to said operating means and adapted, at the reception of said pulse, on the one hand, to actuate said means for controlling said member, so as to switch the same to its security position and, on the other hand, to actuate sa'id operating means for maintaining said connection means in open position, thereby interrupting the charge current to said main accumulator;
  • connection means to said main accumulator having a plurality of channels, each of which comprises at least one intermediary storage element for the electric power supplied by said generator, said connection means connecting each intermediary element, on the one hand, to said generator and, on the other hand, to said main accumulator, to provide for the charge of the latter by the current supplied by said intermediary element;
  • said operating means comprising a program element adapted to periodically and separately connect each intermediary element, on the one hand, to said generator and, on the other hand, to said main accumulator, in accordance with a connection program which may be selected within a set of different programs which may be established at will by said program element;
  • said means for controlling the current supplied to said main accumulator being connected to said operating means and adapted to issue a signal in response to any abnormal value of the current supplied by one of said intermediary elements occurring on at least one of said channels, said signal actuating said operating means so as to disconnect said channel on which occurred said abnormal value and to modify the program of said program element in order to make possible the charge of the main accumulator by means of the remaining channels.
  • a device according to claim 1, wherein said generator is an isotopic electricity source.
  • a device wherein said generator is a fuel cell.
  • said means for controlling the current supplied by said generator comprises a short-circuit detecting device and a device for detecting an open circuit.
  • a device further comprising means for controlling the electric current supplied to the installation by the main accumulator, adapted to issue a signal in response to abnormal values of said current, said means for controlling being connected to said safety means, and
  • said means for controlling and means for monitoring being connected to said safety means which are adapted to actuate said means for controlling said member of the installation at the reception of at least one of said signals, so as to switch said member to its security position.
  • a device for the electric power supply of a remotely controlled installation connected to a main installation through communication means connected to said means for controlling said member and adapted to operate said means for controlling upon reception of a specific order, wherein said means for controlling the current supplied by said generator, said monitoring means and said means for controlling said member are connected to said communication means and supply thereto signals representative of the status of the installation, said corrununication means transmitting to said main installation, in the form of a message, said signals representing the status of the remotely controlled installation.
  • a device wherein said program element is connected to said safety means and is adapted to transmit to the latter, in the case of disconnection of all the channels, a signal ordering the switching of said member to be controlled to its security position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Secondary Cells (AREA)
  • Fuel Cell (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
US120291A 1970-03-04 1971-03-02 Autonomous device for the storage and use of electrical power Expired - Lifetime US3683258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7007819A FR2082146A5 (sv) 1970-03-04 1970-03-04

Publications (1)

Publication Number Publication Date
US3683258A true US3683258A (en) 1972-08-08

Family

ID=9051695

Family Applications (1)

Application Number Title Priority Date Filing Date
US120291A Expired - Lifetime US3683258A (en) 1970-03-04 1971-03-02 Autonomous device for the storage and use of electrical power

Country Status (11)

Country Link
US (1) US3683258A (sv)
JP (1) JPS462721A (sv)
BE (1) BE763635A (sv)
CA (1) CA973251A (sv)
DE (1) DE2110196A1 (sv)
FR (1) FR2082146A5 (sv)
GB (1) GB1304485A (sv)
NL (1) NL7102870A (sv)
OA (1) OA03691A (sv)
SE (1) SE356855B (sv)
SU (1) SU438207A3 (sv)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987352A (en) * 1974-06-10 1976-10-19 Nissan Motor Co., Ltd. Method of charging storage battery in power supply system having another battery of larger capacity
US4066936A (en) * 1974-06-10 1978-01-03 Toshio Hirota Hybrid battery electric drive
US4068293A (en) * 1975-06-24 1978-01-10 Politechnika Krakowska SCR d.c. interrupter
US4700122A (en) * 1985-10-28 1987-10-13 The United States Of America As Represented By The Secretary Of The Air Force Power supply filtering with rechargeable battery element
US4931947A (en) * 1983-09-29 1990-06-05 Engelhard Corporation Fuel cell/battery hybrid system having battery charge-level control
US4961151A (en) * 1983-09-29 1990-10-02 Engelhard Corporation Fuel cell/battery control system
US4962462A (en) * 1983-09-29 1990-10-09 Engelhard Corporation Fuel cell/battery hybrid system
US5119010A (en) * 1989-07-27 1992-06-02 Isuzu Motors Limited Power supply device
US5883493A (en) * 1982-06-07 1999-03-16 Intermec Technologies Corporation Battery pack having memory
US5986435A (en) * 1982-06-07 1999-11-16 Intermec Ip Corp. Method of utilizing a battery powered system having two processors
US6075340A (en) * 1985-11-12 2000-06-13 Intermec Ip Corp. Battery pack having memory
US6271643B1 (en) 1986-12-18 2001-08-07 Intermec Ip Corp. Battery pack having memory
US6307349B1 (en) 2000-02-24 2001-10-23 Intermec Ip Corp. Battery pack having memory
US20130175856A1 (en) * 2012-01-11 2013-07-11 Suzuki Motor Corporation In-vehicle power source device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH081518U (ja) * 1992-03-26 1996-10-22 亮 ▲フジ▼井 ズボンの下着

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305178A (en) * 1941-02-12 1942-12-15 Associated Electric Lab Inc Current supply system
US2847179A (en) * 1955-11-18 1958-08-12 Murray D J Mfg Co Safety device for actuating hydraulic gates
US3366865A (en) * 1963-06-03 1968-01-30 Nuclear Materials & Equipment Power generating apparatus including a thermal prime mover
US3427524A (en) * 1965-12-21 1969-02-11 Brady Co W H Self-contained shield for radioactive generator battery charger
US3443115A (en) * 1966-06-15 1969-05-06 Allis Chalmers Mfg Co Means for paralleling direct current sources having different output characteristics

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305178A (en) * 1941-02-12 1942-12-15 Associated Electric Lab Inc Current supply system
US2847179A (en) * 1955-11-18 1958-08-12 Murray D J Mfg Co Safety device for actuating hydraulic gates
US3366865A (en) * 1963-06-03 1968-01-30 Nuclear Materials & Equipment Power generating apparatus including a thermal prime mover
US3427524A (en) * 1965-12-21 1969-02-11 Brady Co W H Self-contained shield for radioactive generator battery charger
US3443115A (en) * 1966-06-15 1969-05-06 Allis Chalmers Mfg Co Means for paralleling direct current sources having different output characteristics

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066936A (en) * 1974-06-10 1978-01-03 Toshio Hirota Hybrid battery electric drive
US3987352A (en) * 1974-06-10 1976-10-19 Nissan Motor Co., Ltd. Method of charging storage battery in power supply system having another battery of larger capacity
US4068293A (en) * 1975-06-24 1978-01-10 Politechnika Krakowska SCR d.c. interrupter
US5883493A (en) * 1982-06-07 1999-03-16 Intermec Technologies Corporation Battery pack having memory
US5986435A (en) * 1982-06-07 1999-11-16 Intermec Ip Corp. Method of utilizing a battery powered system having two processors
US4931947A (en) * 1983-09-29 1990-06-05 Engelhard Corporation Fuel cell/battery hybrid system having battery charge-level control
US4962462A (en) * 1983-09-29 1990-10-09 Engelhard Corporation Fuel cell/battery hybrid system
US4961151A (en) * 1983-09-29 1990-10-02 Engelhard Corporation Fuel cell/battery control system
US6252380B1 (en) 1984-05-21 2001-06-26 Intermec Ip Corp. Battery pack having memory
US4700122A (en) * 1985-10-28 1987-10-13 The United States Of America As Represented By The Secretary Of The Air Force Power supply filtering with rechargeable battery element
US6075340A (en) * 1985-11-12 2000-06-13 Intermec Ip Corp. Battery pack having memory
US6271643B1 (en) 1986-12-18 2001-08-07 Intermec Ip Corp. Battery pack having memory
US5119010A (en) * 1989-07-27 1992-06-02 Isuzu Motors Limited Power supply device
US6307349B1 (en) 2000-02-24 2001-10-23 Intermec Ip Corp. Battery pack having memory
US20130175856A1 (en) * 2012-01-11 2013-07-11 Suzuki Motor Corporation In-vehicle power source device
US9242559B2 (en) * 2012-01-11 2016-01-26 Suzuki Motor Corporation In-vehicle power source device
DE102012112870B4 (de) * 2012-01-11 2020-12-24 Suzuki Motor Corporation Stromquelleneinrichtung im Fahrzeug

Also Published As

Publication number Publication date
JPS462721A (en) 1971-10-21
OA03691A (fr) 1971-12-24
DE2110196A1 (de) 1971-09-23
CA973251A (en) 1975-08-19
GB1304485A (sv) 1973-01-24
BE763635A (fr) 1971-09-02
SE356855B (sv) 1973-06-04
SU438207A3 (ru) 1974-07-30
FR2082146A5 (sv) 1971-12-10
NL7102870A (sv) 1971-09-07

Similar Documents

Publication Publication Date Title
US3683258A (en) Autonomous device for the storage and use of electrical power
US4399396A (en) Two level constant voltage float charge rectifier and battery surveillance apparatus
US5777454A (en) Back-up battery management system for a DC power supply
US5886503A (en) Back-up battery management apparatus for charging and testing individual battery cells in a string of battery cells
US6583603B1 (en) Back-up battery management apparatus and method for charging and testing battery cells in a string of battery cells
CN113067404B (zh) 一种换电站供电系统及换电站供电方法
US4684872A (en) Battery formation charging apparatus
CN106786831A (zh) 一种ups电源电量采集与控制系统
CN112349988A (zh) 一种车辆蓄电池在线监测装置及自适应充电方法
US4422031A (en) Method and device for charging an electrical accumulator battery by means of solar-cells
US5488285A (en) Gas-controlled battery charging device for a driverless transport vehicle
US3703675A (en) Floating battery charging network
RU2335055C1 (ru) Автономная система электроснабжения передвижных объектов
CN204694790U (zh) 一种适用于核电厂ups系统的霍尔传感器故障监测装置
CN111092471B (zh) 一种储能电池组用过充过放保护电路的使用方法
CN109560556A (zh) 一种基于柔性多状态调节开关调节的电压调节系统
US11984752B2 (en) Actuating mechanism with integral battery
CN1077032A (zh) 蓄电池及直流供电系统的监控仪
WO2001024306A1 (en) Battery power system
CN110531139A (zh) 一种移动式破碎筛分站的电流监控系统及控制方法
CN207859973U (zh) 储能电池充放电系统
CN212518452U (zh) 一种基于馈网逆变的蓄电池远程放电系统
CN210273512U (zh) 一种微网控制系统
GB2147109A (en) Battery charge monitor
US2783430A (en) Automatic timed battery charger