GB2569947A - Power supply arrangement with by-pass diodes - Google Patents

Power supply arrangement with by-pass diodes Download PDF

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Publication number
GB2569947A
GB2569947A GB1722187.0A GB201722187A GB2569947A GB 2569947 A GB2569947 A GB 2569947A GB 201722187 A GB201722187 A GB 201722187A GB 2569947 A GB2569947 A GB 2569947A
Authority
GB
United Kingdom
Prior art keywords
energy storage
storage unit
arrangement
bypass element
storage 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.)
Withdrawn
Application number
GB1722187.0A
Other versions
GB201722187D0 (en
Inventor
Muenchow Oliver
KAUKE Lars
Mueller Thorsten
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.)
Moog Unna GmbH
Original Assignee
Moog Unna GmbH
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 Moog Unna GmbH filed Critical Moog Unna GmbH
Priority to GB1722187.0A priority Critical patent/GB2569947A/en
Publication of GB201722187D0 publication Critical patent/GB201722187D0/en
Publication of GB2569947A publication Critical patent/GB2569947A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Wind Motors (AREA)

Abstract

An arrangement 1 for supplying electrical energy including: a retainer for mechanically, detachably connecting to a plurality of energy storage units 10.1-10.4; a wire arrangement for electrically connecting the energy storage units in series; and a bypass element 7.3 for electrically bridging an energy storage unit in case said unit has become defective, whereby each energy storage unit is provided with a dedicated bypass element attached to the respective unit. Each energy storage unit (10, figure 1) may include a frame (20) for accommodating at least one battery (30a-30f) or super capacitor. The dedicated bypass element (7) may be wired with a terminal (32 33) on each energy storage unit. The dedicated bypass element may be a diode. The arrangement ensures the dedicated bypass element associated with an energy storage unit is disconnected from the wire arrangement when replacing a faulty unit, improving safety for a maintenance person.

Description

Power supply arrangement with by-pass diodes
Field of invention
The invention relates to an arrangement for supply of electrical energy. Particularly, but not exclusively, it relates to an emergency power supply arrangement in a wind turbine with a plurality of battery trays. It also relates to an energy storage unit to be used in the power supply arrangement.
Background to the invention
Wind turbines having rotor blades mounted on a rotor may use pivotable rotor blades for limiting the rotational speed of the rotor in order to prevent structural damage when strong winds occur, or to stop rotation completely. By angling the rotor blade into or out of the wind, the lift produced by the rotor blades is controlled and thus the rotation speed and the generated power of the wind turbine can be adjusted and maintained within operational limits.
In situations where it is critical that the rotors be stopped or have their speed otherwise limited, such as when the wind turbine is approaching overload or a structural safety threshold, it is critical that the pitch control mechanisms are functional at least for a time period that is necessary to turn all rotor blades into a so-called feathering position, where the rotor blades will bring the rotor to a halt. Accordingly, it has become standard practice to provide pitch control mechanisms with emergency backup power supplies, such that the wind turbine can reduce rotor speed even in the event of a power loss or other failure.
An emergency power supply is often provided in the form of one or more energy storage devices, which are installed within the rotating hub of the wind turbine, close by the pitch control motors located at the base of each rotor blade.
As a result of their location, these energy storage devices are subject to shock, vibration and gravity induced bending, and are often inherently not mechanically robust. Further, given energy storage devices are usually made up of many smaller devices in series, the failure of a single element renders the entire device useless. As the module is a key energy source in the safety system of a wind turbine, these failures have severe implications, including injury, turbine collapse to loss of life.
The current approach to this problem is to use by-pass diodes for each energy storage unit, which in case of an interruption of a single energy storage unit short cuts the affected energy storage unit. For example if an energy storage device is composed of forty single energy storage units, each energy storage unit providing a nominal voltage of 12Volts, then the failure of a single energy storage unit would result in a reduction of the total nominal voltage of the energy storage device from 480Volts to 468 Volts, assuming the voltage loss across the bypass diode is negligible. As an energy storage device preferably is designed with sufficient margin to account for a loss of one or two energy storage units, there still should be enough energy left in case of an emergency procedure has to be performed.
However, energy storage installations with by-pass diodes raise concerns that they could be dangerous for a maintenance person, which has been instructed to change a defective energy storage unit. A maintenance person usually has the proper skills and is aware of the dangers. A maintenance person deliberately would not touch any of the wires connecting the energy storage units with each other. However, maintenance personal may feel safe when the wires to and from an energy storage unit have been disconnected, as this person erroneously may assume that by disconnecting an energy storage unit the series connection is interrupted. This wrong feeling of safety may be provoked by the fact that sometimes by-pass diodes are not conspicuous or are even covered by a panel or arranged inside a cabinet. The invention therefore strives to increase the safety of persons changing energy storage units.
Summary of the invention
In accordance with an aspect of the invention, there is provided an arrangement for supply of electrical energy comprising a retainer for retaining a plurality of energy storage units, retainer and energy storage units being arranged for mechanically, detachably connecting the plurality of energy storage units to the retainer; a wire arrangement arranged for electrically connecting the plurality of energy storage units in series; a bypass element for electrically bridging an energy storage unit of the plurality of energy storage units in case an energy storage unit of the plurality of energy storage units has become defective, whereby each energy storage unit of the plurality of energy storage units is provided with a dedicated bypass element which is attached to the respective energy storage unit.
When a maintenance person is changing one of the energy storage units, he has to disconnect the cables, which lead from the energy storage unit to be changed to the other energy storage units. By disconnecting the cables, the bypass element of that specific energy storage unit automatically gets disconnected from the wire arrangement and is no longer part of the wire arrangement. Accordingly, the series connection between the other energy storage units is interrupted.
In one aspect of the invention, each energy storage unit comprises a tray for accommodating at least one battery.
In an alternative arrangement, each energy storage unit comprises a tray for accommodating at least one super capacitor.
In another aspect of the invention, the arrangement terminals are arranged on each energy storage unit for connecting the energy storage unit with the wire arrangement.
In another aspect of the invention, the dedicated bypass element is wired with the terminal.
In another aspect of the invention, the dedicated bypass element is a diode.
Brief description of the drawings
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is three-dimensional view of an energy storage assembly in accordance with an embodiment of the invention.
Figure 2 is a wiring drawing comparing a prior arrangement and an arrangement according to the invention
Figure 3 is a side view of a wind turbine with an energy storage assembly according to the invention
Detailed description
Figure 3 shows a side view of a wind turbine 100 according to the invention. The wind turbine 100 is used for converting a wind's kinetic energy into electrical energy. A tower 101, supporting a nacelle 102 and a rotor 103, 104a, 104b, is fixed to the ground. Evidently the invention is not limited to on-shore installations, where the tower is fixed to the ground but could also be used in connection with so-called off-shore installations where the tower is fixed to a structure in the sea or a structure floating in the sea. The rotor 103, 104a, 104b substantially comprises a hub 103 with three rotor blades 104a, 104b. The wind turbine 1 of this embodiment comprises three rotor blades 104a, 104b whereby in Fig. 1 only two rotor blades 104a, 104b are visible. The third rotor blade is not visible as it happens to be concealed by the hub 103. The rotor 103, 104a, 104b is rotationally connected to the nacelle 102 by a substantially horizontally orientated generator shaft 108. A yaw drive (not shown) is used to rotate the nacelle 102 around its axis TA in order to keep the rotor 103, 104a, 104b facing into the wind as the wind direction changes. An electric current generator 109 coupled by the generator shaft 108 to the rotor 103, 104a, 104b produces electrical energy which may be fed into an energy distributing net (not shown).
Each rotor blade 104a, 104b can be pivoted by a pitch drive unit 105a, 105b. As the wind turbine 100 in this example has three rotor blades 104a, 104b, there are three pitch drive units 105a, 105b. Similarly to the third rotor blade, which is concealed by the hub 103, the third pitch drive unit is not shown in Fig. 1. The three pitch drive units 105a, 105b are controlled by one common pitch system controller 106. Each pitch drive unit 105a, 105b turns each rotor blade 104a, 104b around a rotor blade axis BA. By turning the rotor blades 104a, 4b around their axis BA the angle of attack of the rotor blades 104a, 104b to the wind can be set to an angle substantially between 0 and 90 degrees. The angle of attack can be chosen thus that the rotor blades 104a, 104b even with strong wind produce no lift at all, or produce lift as a function of the wind speed. The produced lift is transformed into a rotation of the hub 103 around a rotor axis RA and eventually by the generator 109 into electrical energy. A turbine controller 107 sends command to the pitch system controller 106 for continuously setting the pitch angle of each rotor blade 105a, 105b individually. Pitch angles and yaw angle of the nacelle eventually control the rotation speed of the rotor 103, 104a, 104b and thus also the amount of energy produced by the generator 109.
Figure 1 shows a three dimensional view of an energy storage unit 10 as used in each of the pitch drives 105a, 105b of the wind turbine 100. The energy storage unit 10 comprises at least a housing tray 20 and six energy storage cells 30a, 30b, 30c, 30d, 30e, 30f. The person skilled in the art will appreciate that the number of energy storage cells can vary as a function of the size of the energy cells and the space provided by the housing tray 20. In this embodiment a resiliently flexible strap 40 in connection with a clamping member 50 is configured to secure the first energy storage cell 30a, the second energy storage cell 30b, the third energy storage cell 30c, the fourth energy storage cell 30d, the fifth energy storage cell 30e, and the sixth energy storage cell 30e in the housing tray 20.
The housing tray 20 encloses a substantial portion of the six energy storage cells 30a, 30b, 30c, 30d, 30e, 30f. The housing tray 20 has a bottom 21, a front element 22, a back wall 23 and two side walls 24 leaving one open side via which the energy storage cells 30 are installed within the housing tray 20 and accessed. It would be apparent to the skilled person, within the context of the invention that the housing tray 20 with its bottom 21, front element 22, back wall 23 and side walls 24 may be referred to as an 'enclosure', 'case', 'casing', 'tray' or a 'cabinet.'
Bottom wall 21, front element 22, back wall 23 and side walls 24 may have fastening holes 28, some or all of which may be formed as slotted holes 29. The fastening holes 28 and the slotted holes 29 allow to fasten the housing tray 20 to a wall of a machine, for example in a hub of a wind turbine, at different positions.
In the embodiment shown in Fig. 1 the energy storage cells 30a, 30b, 30c, 30d, 30e, 30f, are all secured within the housing tray 20 by the resiliently flexible straps 40. In this embodiment brackets extend outwards of two opposite side walls 24 of the housing tray 20, creating on each of two opposite side walls 24 a support plate 25 for supporting the clamping member 50 which also extends over the side walls 24 of the housing tray 20. The support plates 25 provide first bolt holes 26 which correspond to second bolt holes of the clamping member 50. When the clamping member 50 is screwed firmly onto the support plates 25 by restraining bolts 61 and corresponding nuts 62, the restraining bolts 61 act thereby to drive the clamping member 50 down to pinch the straps 40 between the clamping member 50 and the top surface of the energy storage cells 30a, 30b, 30c, 30d, 30e, 30f. The support plates 25 act as a stopper and limit naturally the movement of the clamping member 50. The six energy storage cells 30a, 30b, 30c, 30d, 30e, 30f each have a negative cell terminal 30a-, 30b-, 30c-, 30d-, 30e-, 30f- and a positive terminal 30a+, 30b+, 30c+, 30d+, 30f+, 30 which are electrically connected in series by cell connection wires 31a, 31b, 31c, 3 Id, 31e and operate in a known manner, forming a battery. Each energy storage cell 30a, 30b, 30c, 30d, 30e, 30f may for example have a nominal voltage of 2Volts so that six energy storage cells 30a, 30b, 30c, 30d, 30e, 30f arranged in series will provide a nominal voltage of 12Volts. A plurality of energy storage units 10 may be assembled in a rack (not shown) to form an energy storage device 1, whereby the individual energy storage units 10 are electrically connected in series. Figures 2a and 2b show in a circuit diagram an arrangement of a first energy storage unit 10.1, a second energy storage unit 10.2, a third energy storage 10.3, and a fourth energy storage unit 10.4, which are connected by a cable harness 11 in series to each other.
In the prior art arrangement shown in Fig. 2a the cable harness comprises by-pass diodes 11.1, 11.2, 11.3, 11.4, one for each of the energy storage units 10.1, 10.2 10.3, 10.4. In case one energy storage unit becomes defective, for example the third energy storage unit 10.3, in particular becomes interrupted, the by-pass diode 11.3 associated to the defective energy storage unit 10.3 at least enables the other energy storage units 10.1, 10.2, 10.4 to stay connected in series and to continue providing electrical energy, albeit at a reduced output voltage. As explained earlier this prior art approach also continues to provide electrical energy when an electrical storage unit is removed.
Returning now to Fig. 1 we see that each energy storage unit 10 comprises a first battery terminal 32 and a second battery terminal 33. The first battery terminal 32 is electrically conductive connected with the negative cell terminal 30a- of the first energy storage cell 30a by a first battery wire 34, thus forming a negative pole of the battery. The second battery terminal 33 is electrically conductive connected with the positive cell terminal 30f+ of the sixth energy storage cell 30f by a second battery wire 35, thus forming a positive pole of the battery. With a third battery wire 36 the first battery terminal 32, i.e. the negative pole of the energy storage unit 10.3 can be connected to a positive pole of a downstream energy storage unit 10.2 and with a fourth battery wire 37 the second battery terminal 33, i.e. the positive pole of the energy storage unit 10.3 can be connected to a negative pole of an upstream energy storage unit 10.4. For the person skilled in the art it is evident that the first battery terminal 32 and the second battery terminal 33 may be also arranged on any wall of the housing tray, as long as this does not constrain the assembly of the energy storage unit 10.
The invention further comprises a by-pass diode 7 which is mounted on top of the clamping member 50, in-between the first battery terminal 32 and the second battery terminal 33. The by-pass diode 7 is connected with its anode 7A to the first battery terminal 32 and with its cathode 7C to the second battery terminal 33. Thus, in contrast to the prior art approach shown in Fig. 2a, where the by-pass diodes 11.1., 11.2, 11.3, 11.4 are more or less an integral part of the cable harnessll, the approach of the invention, as shown in Fig. 2b, is to provide each energy storage unit 10.3 with a dedicated by-pass diode 7.3, which is mounted directly on the energy storage unit 10.3. This has the effect that when disconnecting the energy storage unit 10.3, the respective by-pass diode 7.3 automatically is disconnected from the cable harness 11. A removed energy storage unit 10.3 therefore automatically interrupts the current flow in the cable harness 11.
In a further embodiment, the energy storage units 10 comprise a conventional capacitor, respectively a bank of capacitors. As such, the skilled person would appreciate that any other suitable energy storage devices could be used.
In an embodiment, the rack with the energy storage units 10.1, 10.2, 10.3, 10.4 is mounted to the inner surface of the hub of the wind turbine 100, such that the energy storage units 10.1, 10.2, 10.3, 10.4 are perpendicular to the radial axis of the hub. In such an embodiment the energy storage device 1 may be used for example for a pitch drive of a wind turbine.
List of reference signs 1 energy storage device 10 energy storage unit 20 housing tray 21 bottom 21 22 front wall 22 23 back wall 23 24 side wall 24 25 support plate 26 first bolt holes 27 top surface of the support plates 25 28 fastening holes 29 slotted holes 30a, 30b, 30c, 30d, 30e, 30f battery cells 31 top surfaces of a battery cell 30 32 first battery terminal 33 second battery terminal 34 first battery connecting wire 35 second battery connecting wire 36 third battery connecting wire 37 fourth battery connecting wire 38 fifth battery connecting wire 39 sixth battery connecting wire 40 resiliently flexible straps 50 clamping member 61 bolt 62 nut
List of reference signs (continued) 7 by-pass diode 7A Anode of by-pass diode 7B Cathode of by-pass diode 100 wind turbine 101 nacelle 102 tower 103 hub 104a, 104 b rotor blades 105a, 105b pitch drive units 106 pitch system controller 107 wind turbine controller 108 generator shaft 109 generator RA rotor axis TA vertical rotation axis of nacelle BA rotation axis of rotor blades

Claims (7)

Claims
1. Arrangement for supply of electrical energy comprising — a retainer for retaining a plurality of energy storage units, retainer and energy storage units being arranged for mechanically, detachably connecting the plurality of energy storage units to the retainer, — a wire arrangement arranged for electrically connecting the plurality of energy storage units in series, — a bypass element for electrically bridging an energy storage unit of the plurality of energy storage units in case an energy storage unit of the plurality of energy storage units has become defective, whereby — each energy storage unit of the plurality of energy storage units is provided with a dedicated bypass element which is attached to the respective energy storage unit.
2. Arrangement according to claim 1 wherein each energy storage unit comprises a frame for accommodating at least one battery.
3. Arrangement according to claim 1 wherein each energy storage unit comprises a frame for accommodating at least one super capacitor.
4. Arrangement according to one of the preceding claims wherein a terminal is arranged on each energy storage unit for connecting the energy storage unit with the wire arrangement.
5. Arrangement according to claim 4 wherein the dedicated bypass element is wired with the terminal.
6. Arrangement according to one of the preceding claims wherein the dedicated bypass element is a diode.
7. Energy storage unit for the use in the arrangement of one of claims 1 to 6.
GB1722187.0A 2017-12-28 2017-12-28 Power supply arrangement with by-pass diodes Withdrawn GB2569947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1722187.0A GB2569947A (en) 2017-12-28 2017-12-28 Power supply arrangement with by-pass diodes

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GB201722187D0 GB201722187D0 (en) 2018-02-14
GB2569947A true GB2569947A (en) 2019-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242451A1 (en) * 2022-03-11 2023-09-13 General Electric Company Ultracapacitor module with integrated bypass diode and related systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252529A (en) * 1996-03-14 1997-09-22 Honda Motor Co Ltd Storage capacitor module
US20110285351A1 (en) * 2009-02-06 2011-11-24 Robert Bosch Gmbh More readily available traction battery
EP2442384A2 (en) * 2010-10-14 2012-04-18 Alliant Techsystems Inc. Methods and apparatuses for electrochemical cell monitoring and control
WO2015062695A1 (en) * 2013-11-02 2015-05-07 Daimler Ag Battery having a plurality of individual battery cells
US20170229702A1 (en) * 2016-02-04 2017-08-10 Toyota Jidosha Kabushiki Kaisha Secondary battery and battery pack

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252529A (en) * 1996-03-14 1997-09-22 Honda Motor Co Ltd Storage capacitor module
US20110285351A1 (en) * 2009-02-06 2011-11-24 Robert Bosch Gmbh More readily available traction battery
EP2442384A2 (en) * 2010-10-14 2012-04-18 Alliant Techsystems Inc. Methods and apparatuses for electrochemical cell monitoring and control
WO2015062695A1 (en) * 2013-11-02 2015-05-07 Daimler Ag Battery having a plurality of individual battery cells
US20170229702A1 (en) * 2016-02-04 2017-08-10 Toyota Jidosha Kabushiki Kaisha Secondary battery and battery pack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4242451A1 (en) * 2022-03-11 2023-09-13 General Electric Company Ultracapacitor module with integrated bypass diode and related systems
US11804336B2 (en) 2022-03-11 2023-10-31 General Electric Company Ultracapacitor module with integrated bypass diode and related systems

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Publication number Publication date
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