WO2014076446A1 - Système de gestion de puissance - Google Patents

Système de gestion de puissance Download PDF

Info

Publication number
WO2014076446A1
WO2014076446A1 PCT/GB2013/000494 GB2013000494W WO2014076446A1 WO 2014076446 A1 WO2014076446 A1 WO 2014076446A1 GB 2013000494 W GB2013000494 W GB 2013000494W WO 2014076446 A1 WO2014076446 A1 WO 2014076446A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
accumulator
supplied
supply
source
Prior art date
Application number
PCT/GB2013/000494
Other languages
English (en)
Inventor
Adam Hancock
Miroslav Safar
Martin Dorazil
Original Assignee
Torch Solar Technologies Limited
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 CZ201227039U external-priority patent/CZ25614U1/cs
Priority claimed from GB1222072.9A external-priority patent/GB2508651B/en
Application filed by Torch Solar Technologies Limited filed Critical Torch Solar Technologies Limited
Publication of WO2014076446A1 publication Critical patent/WO2014076446A1/fr

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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/40—Synchronising a generator for connection to a network or to another generator
    • H02J3/44—Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • This invention relates to a power management system, especially to a power management system incorporating a renewable source. It further relates to the field of generation of electrical power from renewable resources and covers inverters with energy barriers.
  • Power inverters are used for conversion of direct current to alternating current. Their design and workmanship depends on the inverter power volumes and on the type of electrical devices or appliances to which the alternating current is supplied. These inverters can be used in photovoltaic systems to convert the generated DC current into AC for use with conventional appliances. Their use for feeding standard appliances from accumulators is widespread. Depending on the character and scope of their application, the inverters are broken down into: "OnGrid” devices supplying energy into an electrical network and working only if connected to an electrical network; and “OffGrid” devices supplying energy only into the appliances and working without a connection to the electricity power network. Combined inverters enabling one to switch to the OnGrid as well as to the OffGrid mode are available.
  • the present invention addresses the above problem(s). Furthermore, a device for addressing those problems, including supplying electrical power from an accumulator and from electrical network in parallel is presented. Summary of the Invention
  • the present invention is directed to a power management system comprising a control processor having a first power input and a second power input and at least one power output, wherein the control processor monitors and adjusts the phase of the power supplied at the second power input so that it is substantially in phase with the power supplied at the first power input.
  • both sources of power can be used in combination such that it becomes as a single power source at the output.
  • the first power input is a mains supply and that the mains supply is used as a reference for synchronisation of the second power input.
  • the system is able to provide and accept a second power source, adapt it to match the characteristics of the power from the mains supply and then provide that at the output of the system.
  • devices that are run on a mains supply can be provided with power from a second source without compromising the supply.
  • the risk of power surges from the second supply is reduced as it matches to the mains supply.
  • the system results in a small draw of power, or "trickle", from the mains to provide a reference for the other input to which the system calibrates the second source.
  • the power provided at the second power input is transparent to the other supply and any load placed upon the system.
  • the power supplies effectively blend or merge together without any significant difference between them.
  • the demand at the power output is supplied by the second power input and when the power demand at the output exceeds the power supplied by the second power input, the remaining demand is supplied from the mains supply.
  • the draw on the mains is significantly reduced, and often to a level that is required only to provide a calibration reference.
  • a larger draw on the mains may occur in order that the end-user is not aware of the change of supply. Because the two sources are in phase with one another, the device(s) running from the system will operate without interruption and there will be no significant change in the supply provided.
  • the other is able to take over to provide the power.
  • the secondary supply can be used to provide at least some power to the output.
  • the mains supply can be used to provide a mere significant supply to the output.
  • the second power input is supplied from a renewable source.
  • renewable sources of energy is increasingly more important and more systems are being created for domestic use in the form of solar cells and domestic wind turbines. Incorporating such renewable sources into the power management system allows the user to manage the use of such energy so that the renewable energy is the primary source of power and mains is a secondary source when the renewable energy cannot provide sufficient power to satisfy the demand.
  • an inverter is provided to convert power supplied from the renewable source to an AC power supply, and that the inverter is phased to the mains supply.
  • Renewable energy is generally produced in the form of DC power supply and the use of an inverter allows for the supply to be converted to an AC supply prior to being supplied to the power management system.
  • the renewable power supplied is substantially in phase with, and has similar characteristics to, the supply from the mains.
  • the renewable source is supplied via an accumulator to allow power from the renewable source to be stored until it is required.
  • an accumulator for example a battery or capacitor, allows for the storage of energy produced during times when supply exceeds demand. Solar energy may be used in the system of the present invention, but during the night the supply of solar energy will be significantly reduced. Therefore, storing excess energy produced during the day allows for that energy to be used in periods where demand outstrips supply, more especially renewable supply where applicable.
  • a plurality of accumulators are provided and the accumulators are connected in parallel and charged in parallel, and advantageously, at least one individual accumulator can be readily removed from the system without disconnecting or interrupting the associated power input or power output.
  • Using a bank of batteries that are individually readily removable allows a user to disconnect one or more of the batteries and use it as a stand-alone power source. Additionally, with the use of the inverter, the power can be stored as DC in the accumulators and then converted to AC as and when required. The power can then be drawn from the bank of accumulators when required. By charging the batteries in parallel the cells can be balanced. Furthermore, when one cell is removed from the system, the power within that cell should be substantially similar to that of the other cells. This prevents the removal of a cell that might contain the majority of the power, thereby leaving the system unable to meet demand from the renewable source and having to rely upon mains power. Balancing may be undertaking by natural balancing, passive balancing or active balancing.
  • accumulators for example a number of batteries connected in parallel to form a 'daisy chain'
  • one or more units can be removed from the daisy chain circuit and used as a power source where none exists, for example in a caravan or boat.
  • the renewable power supply is provided by way of solar power.
  • solar power is particular suited to domestic applications as it can be fitted to the roof of a home or outbuilding.
  • the renewable power source may comprise wind power, water power or thermal power, including geothermal power. As the efficiency of renewable power devices increases, it may be desirable to change the source of the renewable power over time or to add a further source of renewable power where demand increases.
  • power provided from either power input cannot be supplied to the other power input.
  • Such an arrangement prevents flow of the energy created using the renewable power source from entering the mains supply. This prevents the system from feeding the mains grid, thereby preventing outflow of the renewable power away from the system. Whilst it may be desirable in some applications to provide a link to supply the mains, the use of accumulators reduces the need for such a supply to the grid and preserves power generated by the system for use when the demand increases.
  • the invention extends to a power management device comprising at least two inlets and at least one outlet adapted to manage the system as described herein.
  • the device which can be used in the system, is provided for aligning the second power source to the first power source. It may be retrofitted to existing power management systems.
  • the invention further extends to an electrical inverter comprising at least one power input and one power output, wherein the inverter is provided with a reference, including a reference frequency and reference voltage, and the power arriving at the power input is converted to match the reference frequency and voltage.
  • the inverter uses an AC reference signal to align the DC power received at the inlet with the AC signal during inversion. This allows the inverted AC power to be used alongside an AC power supply.
  • the phase of the output power is matched to the phase of the reference.
  • the use of the inverted power along side a source for which the reference is provided is less likely to cause integration problems.
  • the reference comprises a connection to a mains source.
  • a mains source as the reference and converting a renewable source using the inverter allows use of both sources together in accordance with the system disclosed herein.
  • the invention also extends to a building incorporating such a power management system.
  • the invention further extends to a power inverter with an energy barrier containing a converter, a DC-input of which is connected to a DC source, and an AC-output, an input of which is connected to an AC network distribution line, characterized in that a throughput meter, which is connected with the converter by a control loop, is included into the network distribution line between the network distribution line inlet and the AC- output of the converter.
  • the output of the AC-output may be connected to appliances.
  • control loop ensuring modification of convertor output, has the parametric expression for the relation between the output power Pi impart v from the converter and the output power P out at the outlet of the network distribution line to the appliances reflected by the relation and the following parametric expression is valid for the input power value Piont at the inlet of the network distribution line into the inverter
  • the presented solution enables one to compensate (in a simple way), or subsidise, one source of electrical power consumption, for instance in a common household, by electrical power obtained by the household from its own renewable resource, independent on the power network.
  • the invention additionally extends to a system comprising a power generating source comprising an outlet and a power supply management module, and at least one accumulator, wherein the power supply management module monitors the demand for power at the outlet and directs sufficient power from the generating source to meet that demand and wherein the excess generated power is supplied to the accumulator and stored therein.
  • the system therefore collects the otherwise wasted energy and stores it for use later.
  • This system may be particularly advantageous on a construction site, where lights are powered during the night but the potential generated power may be well in excess of the demand by the lighting.
  • the system monitors the capacity of the at least one accumulator and upon the accumulator reaching a predetermined threshold, reduces the output from the generating source and supplies power from the at least one accumulator to meet demand at the output.
  • the generating source which may be a diesel generator, may be turned off to preserve its fuel.
  • the generator may be kept in an idling or reduced generating mode to reduce fuel consumption and use the stored power to meet the demand at the output.
  • the at least one accumulator may also be supplied with power from a renewable source.
  • a renewable source By topping up the at least one accumulator with renewable energy reduces the energy required from the generator, thereby reducing fuel consumption.
  • the accumulators may be removed from the system without interrupting the power provided at the output.
  • power is supplied to the outlet from both the generating source and the accumulator in parallel.
  • Figure 1 is a diagram showing one possible arrangement of a control system in accordance with the present invention
  • Figure 2 is a diagram showing a first arrangement of a power management system for use in a home
  • Figure 3 is a diagram showing a second arrangement of a power management system for use in a home
  • Figure 4 is a diagram showing a third arrangement of a power management system for use in a home
  • Figure 5 is a wiring diagram of an inverter in accordance with the present invention.
  • Figure 6 is a wiring diagram of a cascade of three interconnected inverters.
  • FIG. 1 shows a system 10 comprising a solar source 12, comprising four 150 Watt photovoltaic modules, and a battery connected to an accumulator 14 in the form of a one- kilowatt hour LiFe P04 battery.
  • the accumulator 14 feeds into a control box 16, which comprises a processor and two powers inputs 18; a first power input 18b being connected to a mains supply 20; the second power input 18a being the accumulator 14.
  • the second power input 18a leads on to an inverter 22, which is provided with a trickle of power 24 from the mains supply 20 via the first power inlet 18b.
  • This trickle of power 24, which is a one-way connection and prevents flow of power to the first input 18b from the inverter 22, provides the inverter 22 with a reference of the characteristics of the mains supply 20, including the frequency, voltage and phase of the power supplied to the first power input 18b.
  • the inverter 22 and the first power input 18b are both connected to a switch box 26, which is connected to a power output 28.
  • the switch box 26 comprises a mechanical link to control the flow of power from the inverter 22 and the mains inlet 18b to the power outlet 28.
  • the solar source 12 When in use, the solar source 12 provides power to the accumulator 14 in the form of a direct current supply.
  • the accumulator 14 charges such that it holds and/or stores the power created by the solar source 12.
  • the control box 26 draws power from the accumulator 14 via the inverter 22.
  • the inverter 22 As the power passes through the inverter 22, it converts the direct current supplied from the accumulator 14 to alternating current, which is supplied to the switch box 26.
  • the inverter 22 In converting the power from direct current to alternating current, the inverter 22 substantially matches the characteristics of the converted alternating power to the characteristics of the mains power supplied to the control box 16. This is done by the trickle of power 24 that flows from the first power inlet 18b to the inverter 22.
  • the trickle of power 24 is used as a reference for converting the direct current to alternating current.
  • the inverter 22 matching the characteristics of the power supplied at the second inlet 18a to the power supplied at the first inlet 18b, the power reaching the switch box 26 from the two sources is substantially the same.
  • the switch box 26 monitors the demand at the power output 28 and draws power from the two sources to match that demand.
  • the switch box 26 preferentially draws power from the inverter 22, and therefore from the accumulator 14, which ensures that power is provided at the power outlet 28 primarily from the renewable source 12.
  • the switch box 26 allows the extra energy to be provided by the mains supply 20. Because the power supplied from the two sources 12 and 20 is substantially the same, the power supplied to the power output 28 is substantially the same, regardless of its source. Therefore, the power from each source can be used to provide power to the power outlet 28 with the mains supply being used to 'top-up' the supply from the renewable source 12, when required.
  • FIG 2 shows an arrangement 1 10 wherein the system comprises a solar array 1 12 connected to an accumulator 114 that incorporates an inverter.
  • a mains supply 120 is provided to the home and connected to the fuse box 116 in a traditional fashion.
  • the mains supply 120 feeds upstairs lighting 130, an upstairs ring mains 132, downstairs lighting 134, a downstairs ring mains 136 and fixed appliances 138, for example an oven and/or burglar alarm, as indicated by the solid line.
  • the accumulator is provided with a trickle feed from the mains supply 120 to use as a reference in order that the inverter can provide power with substantially the same characteristics as, and in phase with, the mains power 120.
  • the feed from the accumulator 114 is used to power an extension cable box 140, as indicated by the dashed line, into which further devices may be connected.
  • the renewable energy is used only for the further devices and the mains power supplies the lighting, sockets and fixed appliance(s).
  • FIG. 3 shows a further arrangement 210 wherein the system comprises a solar array 212 connected to an accumulator that comprises an inverter 214.
  • the accumulator 214 feeds into a control box 216, which is also supplied by a mains power supply 220.
  • the accumulator is connected to the upstairs lighting 230 and the downstairs lighting 234, as indicated by the dashed line.
  • the mains power supply 220 is used to power the upstairs mains ring 232 and the downstairs mains ring 236 and the fixed appliances 238, along with an extension cable box 240, as indicated by the solid line.
  • the renewable source is thus used to supply power to the lighting, thereby reducing the reliance upon the mains supply 220 of a major use of power within the building.
  • Figure 4 shows yet a further arrangement 310, wherein the system comprising a plurality of solar arrays 312a to 312c connected to an accumulator 314, which is in turn connected to a control box 316.
  • the control box 316 is also provided with a mains supply 320.
  • the accumulator 314 is used to provide power to the upstairs lighting 330, an upstairs ring mains 332, downstairs lighting 334, a downstairs ring mains 336 and fixed appliances 338, as indicated by the dashed line.
  • This arrangement reduces the demand on the mains supply 320 by relying upon the renewable source 312 for most, if not all, of the required power.
  • the mains supply 320 is used as a reference for inverting the renewable source and also as a back-up system should the renewable source 312 be unable to supply the required demand on the system.
  • the inverter 400 comprises a convertor 402, a DC- input 404, which is connected to a DC source 406, for example, an accumulator, and AC output 408, which is connected to the AC network distribution line 410 with the outlet 412 connected appliances 414.
  • a throughput meter 416 interconnected by a control loop 418 with the converter 402, is included between the network distribution input 420 and the inverter AC-output 408.
  • the created control loop 418 ensures modification of the output power Pj nv from the converter 402 so that for the relation between output power ⁇ , ⁇ from the converter 402 and between the output power P out at the outlet 412 of the network distribution line 410 to the appliances 414, the following condition may be valid that is, the instantaneous output power Pj nv from the converter 402 should be lower than the total output P ou t at the outlet of the inverter 400 and electrical power at the inlet of the inverter 400 should always flow towards the appliances 414 and never back to inlet 420 from the network.
  • the current consumption of the appliances 414 P out 500W.
  • the resultant activity of the inverter 400 is as follows:
  • 490 W is taken from the DC source 406 and 10W from the inlet 420 of the network distribution line, which is then fed to the appliances 414.
  • the resultant activity of the inverter 400 is as follows:
  • the inverter 400 does not necessarily need to be used as a single functional unit because as the network distribution line 410 can accommodate more inverters 400a, 400b and 400c connected in series to a common DC power source 406.
  • the network distribution line 410 can accommodate more inverters 400a, 400b and 400c connected in series to a common DC power source 406.
  • there are three cascade-arranged inverters enabling to feed the appliances 414 by the output power P out from the outlet 420 of the network distribution line 410.
  • the appliances 414 are fed by electrical power which takes 490W from the DC source 406 via the third convertor 402c and 10W is taken from the network;
  • the first and second converters 402a and 402b do not supply any power to the appliances 414 from the DC source 406.
  • the appliances 414 are fed by electrical power, which takes 1000W from the DC source 406 via the third converter 402c, 490 W via the second convertor 402b and 10W from the network; the first convertor 402a does not supply any power to the appliances 414 from the DC source 406.
  • the appliances 414 are fed by electrical power, which takes 1000W from the DC source 406 via each convertor 402 with the remaining 500W being taken from the network.
  • electrical power takes 1000W from the DC source 406 via each convertor 402 with the remaining 500W being taken from the network.
  • the described solutions are exemplary embodiments and the invention is not intended to be limited thereto.
  • a cascade arrangement of two or of more than three inverters 400 can be connected in series.
  • the direct current may be supplied to the appliance not only from one, but from two or even from more DC sources 406. Additionally, more than one cascade may be used in parallel.
  • An appliance with the input power 100W is connected to the power output.
  • the control device is set such that the inverter has a set-up output power 100W. Therefore, no power is taken from the mains supply beyond that required for the inverter reference.
  • An appliance with the input power 700W is connected to the output.
  • the inverter draws the maximum available possible power from the accumulator, for example 500W.
  • the remaining 200W required to meet the demands on the system is supplied from the mains.
  • the control system will supply limited power drawn from the renewable source to meet as much of the output demand as possible until the power is restored or the accumulated and stored energy is used.
  • the circuits within the building may be prioritized so that some appliances are powered for as long as possible, for example the freezer or burglar alarm.
  • the system may comprise a plurality of renewable sources such that it is formed from a number of similar systems, for example a plurality of solar panels may be used together, or a plurality of wind turbines. Alternatively, there may be mix of renewable sources, such as wind, solar and water power to all be used together to supply the accumulators, thereby reducing any reliance on a single source of power. It is envisaged that such a system could use an inverter with a 500 Watt maximum power output and galvanic isolated 48 volt DC input. Additionally, it could comprise 485 interface connections for configuration and reading of operating parameters. The inverter may be a stand-alone part or it may be built into any of the equipment as required.
  • the inverter when phased into the mains power supply may, for example, provide power at 230Volt and 50 Hertz from a 48Volt accumulator device or array.
  • the inverter draws energy from the accumulator according to the instant requirements at the power output. Therefore, the energy can be stored as DC and used as AC as and when required.
  • the inverter works as a controlled AC power source.
  • the control system may comprise "anti-islanding" protection and so is shutdown from the supply in the case of under/over voltage or under/over frequency and it will reconnect once the conditions that causes the shutdown are removed; the limits being predetermined. This means that the device can deal appropriately with any surge currents.
  • the system may be disconnected from the mains supply, either intentionally or by way of a power failure and the accumulators can still provide power to the output(s) via the inverter.
  • the inverter can be programmed to have a default setting so that it reverts to supplying a 230V/50Hz supply in the event of the mains being disconnected, or it may record the most recently supplied mains characteristics and use them for further conversion of the DC supplied by the accumulators to AC. In such a situation, the inverter may automatically shutdown if the output is overloaded and it may reconnect automatically once the overload is removed. This can be set using the 485 communication lines.
  • the input to the inverter may be 38V to 68V of direct current with galvanic isolation for the C side.
  • the output AC sine wave may be 230V/50Hz ⁇ 15%, TDH less than 3% variable to the supply, although this may be varied according to the application, for example to 1 10V/60Hz.
  • the interconnection AC-in to AC-out can be sized for a maximum 32 Amps, although a larger current, for example 60 Amps, may be required in some situations.
  • the operating temperature is intended to be -20 degrees Celsius to +40 degrees with an inverter efficiency of 90%.
  • the maximum output may be limited to 500W. There may be a plurality of accumulators feeding the system and the limit per accumulator may be 500W.
  • the system comprises a microchip that is programmed to act as a 'firewall' between the system and the household mains power input.
  • This firewall enables the renewable source of power to supply all or part of the power required, with an option to top-up the supply from a different source, such as a mains power supply, where the demand cannot be met by the renewable source alone.
  • Lithium-iron cells may be used as the accumulator and these are balanced to give an efficient and even charge to all of the cells in the accumulator array. This maintains the maximum capacity of the whole array as much as possible. Additional accumulators may be added to the system in order to increase its capacity and to assist with meeting the demand of the building.
  • Some of the accumulator units may be disconnected from the rest of the accumulator units in order to be used elsewhere. This allows a user to use a 'portable power supply' elsewhere whilst leaving some units in place to continue to power the building. For example, a user may take one or more units from the system to power a caravan whilst on holiday, leaving the remaining units in place to keep the fridge, freezer and burglar alarm running on renewable power rather than the mains power supply.
  • the system acts as a charging system to these removable accumulator units, using renewable energy to recharge them as required.
  • the system, and more specifically the management microchip can be retrofitted into existing renewable systems.
  • LiFe P04 battery is an example of one possible accumulator.
  • Lithium-Iron accumulators may be used in all of the systems of the present invention. The use of such accumulators is safer and more convenient that lead-acid batteries. Additionally, they are lighter and thus more portable and they can retain charge for longer periods, thereby increasing the benefit of being able to remove an accumulator from the system without interrupting the provided power. Furthermore, lithium-iron accumulators can be discharged and recharged many more cycles that other types of accumulators, thereby making them suitable for the present invention.
  • the removable accumulator may be used in any application where a power source is provide, for example, in a car to keep functions operating whilst the engine is turned off, or to power a heating application for camping.
  • a power source is provide, for example, in a car to keep functions operating whilst the engine is turned off, or to power a heating application for camping.
  • the need to power the electrical systems from the alternator or another supply is reduced.
  • the accumulator can provide a back-up system.
  • the computer system can be powered from an accumulator of the present invention. This reduces the need to leave the engine of the car running and thus reduces the fuel consumption of the car.
  • the accumulators are low-weight and so portable, it may be desirable to provide fully charged units to power houses should there be a failure in the mains power supply. Not only does such a system allow for emergency power to be provided swiftly, but it may also assist in reducing fines for electricity providers where power cannot be restored quickly. Additionally, it may be useful in hospital environments where essential equipment can be connected to an accumulator in the event of a power supply problem or if a patient needs to be transported.
  • the contents of the priority documents, CZ25614 and GB 1222072.9 are incorporated herein by reference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention porte sur un système de gestion de puissance comprenant un processeur de commande ayant une première entrée de puissance et une seconde entrée de puissance et au moins une sortie de puissance. Le processeur de commande surveille et ajuste la phase de la puissance fournie au niveau de la seconde entrée de puissance de telle sorte qu'elle soit sensiblement en phase avec la puissance fournie au niveau de la première entrée de puissance.
PCT/GB2013/000494 2012-11-16 2013-11-15 Système de gestion de puissance WO2014076446A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CZPUV2012-27039 2012-11-16
CZ201227039U CZ25614U1 (cs) 2012-11-16 2012-11-16 Měnič elektrického proudu s energetickou zábranou
GB1222072.9 2012-12-07
GB1222072.9A GB2508651B (en) 2012-12-07 2012-12-07 A power management system

Publications (1)

Publication Number Publication Date
WO2014076446A1 true WO2014076446A1 (fr) 2014-05-22

Family

ID=50730647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2013/000494 WO2014076446A1 (fr) 2012-11-16 2013-11-15 Système de gestion de puissance

Country Status (1)

Country Link
WO (1) WO2014076446A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018035236A1 (fr) * 2016-08-16 2018-02-22 Helion Concepts, Inc. Système de fourniture d'énergie électrique de matériel/logiciel reconfigurable, intelligent et polyvalent destiné à des applications en réseau et hors réseau
CN109921409A (zh) * 2019-04-16 2019-06-21 清华大学 一种建筑全直流供电和蓄电系统及控制方法
US11935979B2 (en) 2017-04-24 2024-03-19 Helion Concepts, Inc. Lightweight solar panels with solar cell structural protection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010012658U1 (de) * 2010-09-15 2010-11-18 Mürle, Udo Steuereinheit zur Regelung, Einspeisung und Speicherung von elektrischer Energie am Stromnetz unter Einbindung regenerativer oder anderer lokaler Energiequellen
DE102009035399A1 (de) * 2009-07-30 2011-02-03 Löffler, Martin Schaltungsanordnung zur Stromlenkung
DE202010016992U1 (de) * 2010-12-23 2011-03-17 Mürle, Udo Steuereinheit zur Pufferung elektrischer Energie an der Hausverteilung
DE202011003152U1 (de) * 2011-02-24 2011-06-09 Jaiser, Martin, 75433 Steuereinheit zur Speicherung von Energie und Steigerung des Eigenverbrauchs bei elektrischen Anlagen
US20110175565A1 (en) * 2010-01-21 2011-07-21 Samsung Sdi Co., Ltd. Energy storage system and method of controlling the same
DE102011010791A1 (de) * 2011-02-09 2012-08-09 MHH Solartechnik GmbH System zur Erzeugung regenerativer elektrischer Energie mit intelligenter Energieverwaltungseinheit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035399A1 (de) * 2009-07-30 2011-02-03 Löffler, Martin Schaltungsanordnung zur Stromlenkung
US20110175565A1 (en) * 2010-01-21 2011-07-21 Samsung Sdi Co., Ltd. Energy storage system and method of controlling the same
DE202010012658U1 (de) * 2010-09-15 2010-11-18 Mürle, Udo Steuereinheit zur Regelung, Einspeisung und Speicherung von elektrischer Energie am Stromnetz unter Einbindung regenerativer oder anderer lokaler Energiequellen
DE202010016992U1 (de) * 2010-12-23 2011-03-17 Mürle, Udo Steuereinheit zur Pufferung elektrischer Energie an der Hausverteilung
DE102011010791A1 (de) * 2011-02-09 2012-08-09 MHH Solartechnik GmbH System zur Erzeugung regenerativer elektrischer Energie mit intelligenter Energieverwaltungseinheit
DE202011003152U1 (de) * 2011-02-24 2011-06-09 Jaiser, Martin, 75433 Steuereinheit zur Speicherung von Energie und Steigerung des Eigenverbrauchs bei elektrischen Anlagen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PING ZHAO ET AL: "Single-Stage Boost Inverter Applied to Photovoltaic System", POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2012 ASIA-PACIFIC, IEEE, 27 March 2012 (2012-03-27), pages 1 - 4, XP032239709, ISBN: 978-1-4577-0545-8, DOI: 10.1109/APPEEC.2012.6307196 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018035236A1 (fr) * 2016-08-16 2018-02-22 Helion Concepts, Inc. Système de fourniture d'énergie électrique de matériel/logiciel reconfigurable, intelligent et polyvalent destiné à des applications en réseau et hors réseau
US10938224B2 (en) 2016-08-16 2021-03-02 Helion Concepts, Inc. Hardware/software reconfigurable, intelligent and versatile electrical energy provisioning system for on-grid and off-grid applications
US11935979B2 (en) 2017-04-24 2024-03-19 Helion Concepts, Inc. Lightweight solar panels with solar cell structural protection
CN109921409A (zh) * 2019-04-16 2019-06-21 清华大学 一种建筑全直流供电和蓄电系统及控制方法
CN109921409B (zh) * 2019-04-16 2024-01-16 清华大学 一种建筑全直流供电和蓄电系统及控制方法

Similar Documents

Publication Publication Date Title
US11955831B2 (en) Photovoltaic sources power station with integrated battery charge/discharge cycle
US11532947B2 (en) Combination wind/solar DC power system
JP5076024B2 (ja) 再生可能エネルギーの利用を最大限にする貯蔵システム
KR101369692B1 (ko) 전력 저장 시스템 및 그 제어방법
AU748683B2 (en) High efficiency lighting system
KR101084214B1 (ko) 계통 연계형 전력 저장 시스템 및 전력 저장 시스템 제어 방법
US8269374B2 (en) Solar panel power management system and method
KR101147206B1 (ko) 계통 연계형 전력 저장 시스템 및 이를 위한 통합 제어기
KR101369633B1 (ko) 전력 저장 시스템 및 그 제어방법
US9711967B1 (en) Off grid backup inverter automatic transfer switch
KR20110068690A (ko) 전원 변환 장치
US20170201098A1 (en) Photovoltaic microstorage microinverter
JP2011135763A (ja) エネルギー保存システム及びその制御方法
JP2014504492A (ja) 直流マイクログリッド機能を備えた自立運転可能な燃料電池システム
KR20110068640A (ko) 에너지 관리 시스템 및 이의 제어 방법
WO2014076446A1 (fr) Système de gestion de puissance
WO2013151133A1 (fr) Appareil de distribution de puissance et système d'alimentation électrique
AU2014101078A4 (en) Hybrid Solar Uninterrupted Power Supply and Off Grid Inverter, adaptable to most existing grid interactive solar systems.
GB2508098A (en) Power management system with increased generator efficiency
KR20140013553A (ko) 하이브리드 발전 시스템
JP6722295B2 (ja) 電力変換システム、電力供給システムおよび電力変換装置
US20190222028A1 (en) System and Method for Symmetric DC Regulation for Optimized Solar Power Generation and Storage
AU2005100876A4 (en) System and method for supplementing or storing electricity to or from an electrical power grid
CN110061512A (zh) 一种储能系统
US20240014659A1 (en) Photovoltaic sourced power station with integrated battery charge/discharge cycle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13808163

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13808163

Country of ref document: EP

Kind code of ref document: A1