WO2016175286A1 - 給電システム - Google Patents
給電システム Download PDFInfo
- Publication number
- WO2016175286A1 WO2016175286A1 PCT/JP2016/063368 JP2016063368W WO2016175286A1 WO 2016175286 A1 WO2016175286 A1 WO 2016175286A1 JP 2016063368 W JP2016063368 W JP 2016063368W WO 2016175286 A1 WO2016175286 A1 WO 2016175286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- power
- voltage
- converter
- supply system
- Prior art date
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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
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
-
- 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
Definitions
- the present invention relates to a power supply system that supplies electric power from an external power source to electronic devices such as ICT (Information and Communication Technology) devices.
- ICT Information and Communication Technology
- the output voltage of the AC adapter or PSU must match the input voltage of the electronic device. For this reason, when using a plurality of electronic devices having different input voltages, it is necessary to use different AC adapters or PSUs correspondingly. Therefore, when power is supplied from a commercial power source to an electronic device to use the electronic device, a dedicated AC adapter or PSU is provided for each electronic device in order to avoid unstable operation of the electronic device due to a mismatch of DC input voltages. Had the disadvantage of having to prepare.
- an object of the present invention is to provide a power supply system that does not require a dedicated AC adapter for each input voltage value even when a plurality of electronic devices having different input voltages are used. .
- an object of the present invention is to provide a power feeding system that can stably supply electric power to an electronic device even when electric power using natural renewable energy, a fuel cell, or the like is used.
- the present inventor has focused on the LVDC (Japanese registered trademark) concept and has completed the present invention.
- a power supply system is a power supply system that supplies electric power from an external power source to an electronic device that operates at a predetermined DC voltage, and is connected to the electronic device and receives a DC voltage within a predetermined voltage range.
- a wide range DC / DC converter that outputs one or a plurality of types of fixed value voltages regardless of the value of the input DC voltage, and an output of the external power source and an input of the wide range DC / DC converter, And a discharger for stabilizing supply power that discharges in response to a decrease in the output voltage of the external power supply.
- the wide-area DC / DC converter is connected to a switch that selectively outputs any one of a plurality of output voltages of the external power source, and the discharge to the switch and the wide-area DC / DC converter. It is desirable that electrical equipment is connected.
- the discharger discharges during the power supply stop period until the switch is disconnected from the external power source and connected to the other external power source, whereby the wide range DC / It is desirable to be configured to supply power to the DC converter.
- the electronic device includes a plurality of parts that operate with different DC voltages.
- the discharger is a charge / discharge device for stabilizing supply power that performs charging / discharging in accordance with increase / decrease of the output voltage of the external power supply.
- the charger / discharger preferably includes an electric double layer capacitor.
- the charger / discharger preferably includes a rechargeable battery.
- the charger / discharger preferably includes a primary battery.
- the DC voltage input by the wide range DC / DC converter fluctuates within a safe voltage of 60 V or less.
- the charger / discharger for stabilizing the supply power is connected to the input of the wide range DC / DC converter, so even if the power supply from the external power source fluctuates due to various causes, the wide range DC / DC converter In this way, stable voltage output can be performed.
- the present invention it is possible to supply power to a plurality of electronic devices having different operating voltages using the same power supply system, and therefore it is not necessary to use a dedicated adapter for each electronic device.
- the power supply is provided regardless of the characteristics of each power supply (stability of power supply and ability to follow fluctuations in power consumption of electronic devices). Can be stabilized.
- the power supply system becomes inexpensive.
- the charger / discharger by configuring the charger / discharger so that only the DC input voltage within the range of the safety voltage of 60V or less is applied to the wide-range DC / DC converter, it can be used even when the inside of the electronic device is exposed. It is possible to prevent a situation where a person or the like is exposed to a high voltage danger.
- FIG. 1 shows a first embodiment of the present invention.
- the power feeding system 1 according to the first embodiment is configured in conformity with the LVDC concept.
- the present invention can also be applied to systems other than systems based on LVDC.
- the power supply system 1 includes a charging battery (secondary battery) 6 and a large-capacity capacitor 7 as the charger / discharger of the present invention.
- the charging battery 6 and the large-capacity capacitor 7 are connected in parallel to each other, and each of them has four types of external power sources (that is, the first power source 5A, the second power source 5B, the third power source 5C, and the fourth power source).
- Power supply 5D The power from the external power sources 5A to 5D is supplied to the electronic devices 2A and 2B via the wide range DC / DC converters 10A and 10B.
- the wide range DC / DC converter 10A is externally connected to the electronic device 2A.
- the wide range DC / DC converter 10B is built in the electronic device 2B.
- the wide range DC / DC converter 10A for example, a DC / DC converter having a wide range input function, a digital power source having a wide range input function, or the like can be used.
- the wide range DC / DC converter 10B for example, a DC / DC converter having a wide range input function, a POL (Point Of Load) converter having a wide range input function, a digital power source having a wide range input function, or the like is used. Can do.
- the wide-range input function is a function that outputs one or a plurality of types of fixed value voltages regardless of the value of the input DC voltage when a DC voltage within a predetermined wide range is input.
- the DC / DC converters 10A and 10B input a DC voltage within a range of 60V or less which is a safe voltage, and three types of DC output voltages (for example, 3.3V, 5V, 12V, etc.) ) Will be described as an example.
- the DC output voltages of the wide range DC / DC converters 10A and 10B may be one type each.
- the wide range DC / DC converters 10A and 10B for example, GADIWA-3161 or GADIWA-R9271 manufactured by Portwell can be employed.
- Each electronic device 2A, 2B includes three parts 21, 22, 23 that operate with different DC voltages (for example, 3.3V, 5V, 12V, etc.).
- each of the wide range DC / DC converters 10A and 10B inputs a wide range of DC voltage within the range of the safety voltage of 60V or less, and outputs a DC output voltage corresponding to the DC operating voltage of the electronic devices 2A and 2B.
- a function of outputting to the electronic devices 2A and 2B is provided. Thereby, the electronic devices 2A and 2B can be operated by the supply voltage of only one corresponding wide-area DC / DC converter 10A or 10B.
- the first power source 5A is, for example, an AC / DC converter that converts a commercial AC power source into a direct current and outputs it.
- the second power source 5B is a DC power source that outputs power generated by natural renewable energy such as wind energy, solar energy, solar thermal energy, and the like.
- the third power source 5C is a DC power source that outputs power obtained by a human power generator used in a disaster, for example.
- the fourth power source 5D is, for example, a fuel cell.
- any one of the output powers of the external power supplies 5A to 5D is selectively supplied to the wide range DC / DC converters 10A and 10B.
- the power supply system 1 can use a plurality of external power supplies 5A to 5D having different power generation principles.
- the charging battery 6 and the large-capacity capacitor 7 are chargers / dischargers that store the electric power supplied from the external power sources 5A to 5D as described above. As shown in FIG. 1, each of the charging battery 6 and the large-capacity capacitor 7 has one terminal connected to the input terminals of the wide range DC / DC converters 10A and 10B and the other terminal grounded. .
- the rechargeable battery 6 a battery whose output voltage at full charge is within a range of allowable input voltages of the wide range DC / DC converters 10A and 10B (here, 60 V or less) is used.
- a lead battery, a nickel metal hydride battery, a lithium battery, a redox flow battery, or the like can be used.
- the charging battery 6 it is desirable to use an external electronic circuit that turns on / off discharging and turns on / off charging.
- the large-capacity capacitor 7 for example, an electric double layer capacitor is used.
- the capacitance of the large-capacitance capacitor 7 is preferably, for example, 1 Farad or more.
- both the charging battery 6 and the large-capacity capacitor 7 are used as the charger / discharger.
- only one of the charging battery 6 and the large-capacity capacitor 7 may be used, and further, other types of chargers / dischargers may be used. good.
- the charging battery 6 and the large-capacity capacitor 7 are charged using the current supplied from the external power sources 5A to 5D, and are discharged when the output voltage of the external power sources 5A to 5D is lowered. Thereby, the charging battery 6 and the large-capacity capacitor 7 alleviate fluctuations in the input voltage of the wide-area DC / DC converters 10A and 10B.
- the supplied power may temporarily decrease (for example, about several seconds to several minutes).
- the charging battery 6 and the charging / discharging are performed according to the increase / decrease of the input voltage, so that fluctuations in the supplied power can be reduced.
- the power supply to the power feeding system 1 is temporarily stopped (for example, about 1 second). There is a risk. In this power supply system 1, even in such a case, the charging battery 6 and the large-capacity capacitor 7 discharge, so that it is possible to prevent the power supply to the wide-area DC / DC converters 10A and 10B from being stopped.
- the power consumption of the electronic devices 2A and 2B may increase temporarily for some reason.
- the power supplied from the external power supply (any one of the power supplies 5A to 5D) connected to the power supply system 1 may not be able to follow this increase in power consumption.
- the output of the fuel cell 5D has a low following speed in such a case, and thus there is a possibility that sufficient power cannot be stably supplied to the electronic devices 2A and 2B.
- the amount of discharge of the charging battery 6 and the large-capacity capacitor 7 can be made to follow the increase in power consumption of the electronic devices 2A and 2B, so that sufficient power supply can be maintained.
- the power supply system 1 when using electric power from wind power generation or solar power generation, when switching the external power source used, or when the power consumption of the electronic devices 2A and 2B is rapidly increased Etc., it is possible to stably supply power to the wide range DC / DC converters 10A and 10B by using the charging battery 6 and the large capacity capacitor 7.
- the wide-area DC / DC converters 10A and 10B apply a stable voltage to the components 21, 22, and 23 of the electronic devices 2A and 2B. be able to. Therefore, in the power supply system 1, even when the input voltage from the external power sources 5A to 5D is not stable, the electronic devices 2A and 2B can be stably operated.
- the power supply system 1 can stably apply a voltage to the electronic devices 2A and 2B using the wide range DC / DC converters 10A and 10B. Therefore, in the power feeding system 1, it is not necessary to prepare a dedicated AC adapter for each electronic device according to the type of the external power sources 5A to 5D.
- the wide range DC / DC converters 10A and 10B input only a DC voltage within the range of the safety voltage of 60 V or less, so that the electronic devices 2A and 2B can be exposed even when the insides of the electronic devices 2A and 2B are exposed.
- the wide range DC / DC converters 10A and 10B input only a DC voltage within the range of the safety voltage of 60 V or less, so that the electronic devices 2A and 2B can be exposed even when the insides of the electronic devices 2A and 2B are exposed.
- the rechargeable battery 6 having a voltage different from the originally required voltage can be used by the wide range input function of the wide range DC / DC converters 10A and 10B.
- the electronic devices 2A and 2B that require an input voltage of around 19V can be operated by the rechargeable battery 6 of about 12V.
- the power supply system 1 includes a wide range DC / DC converters 10A and 10B, a rechargeable battery 6 and a large-capacity capacitor 7, so that an external power source (especially, power sources 5B and 5C using natural renewable energy and human power generation) is provided. Even when a device for stabilizing the supply power is not provided, stable power supply can be performed.
- the power supply system 1 that supplies power from the four types of external power supplies 5A to 5D to the electronic devices 2A and 2B has been described.
- the external power supplies 5A to 5D for supplying power to the electronic devices 2A and 2B are not limited to these four types, and for example, primary batteries such as dry batteries can be adopted.
- the wide range DC / DC converters 10A and 10B input a wide range of direct current voltages. Therefore, even if the primary battery drops due to its use, the electronic devices 2A and 2B are operated. There are benefits to be continued.
- the charging battery 6 and the large-capacity capacitor 7 are used as the charger / discharger.
- other chargers / dischargers are used instead. Or they can be used together.
- a primary battery such as a dry battery may be used instead of the rechargeable battery 6, a primary battery such as a dry battery may be used instead of the charger / discharger of the first embodiment (a combination of the charging battery 6 and the large-capacity capacitor 7), a combination of the primary battery and the large-capacity capacitor 7 may be used, or a charging / discharging device may be used.
- only the primary battery may be used.
- a main power source such as a commercial power source with very little fluctuation in power supply is mainly used, sufficient stability can be obtained with only a primary battery.
- the primary battery By using the primary battery, a circuit for turning on / off charging is not necessary, and the price of the battery itself can be reduced. Therefore, the price of the power supply system as a whole can be reduced.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Power Sources (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
図1には、本発明の実施の形態1を示す。
なお、上述した実施の形態1では、4種類の外部電源5A~5Dから電子機器2A、2Bに電力を供給する給電システム1について説明した。しかし、電子機器2A、2Bに電力を供給する外部電源5A~5Dとしては、これらの4種類に限るわけではなく、例えば、乾電池などの一次電池を採用することもできる。一次電池を外部電源として用いる場合、広範囲DC/DCコンバータ10A、10Bが広範囲な直流電圧を入力するため、この一次電池がその使用に伴って電圧降下しても、電子機器2A、2Bを作動させ続けられる利点がある。
2A、2B 電子機器
3 商用電源
4 ACアダプター
5A、5B、5C、5D 外部電源
6 バッテリー(充放電器)
7 大容量キャパシター(充放電器)
10A、10B 広範囲DC/DCコンバータ
21、22、23 部品
Claims (9)
- 所定の直流電圧で作動する電子機器に、外部電源の電力を供給する給電システムであって、
前記電子機器に接続され、所定電圧範囲内の直流電圧を入力したときに、その入力直流電圧の値に拘わらず、1又は複数種類の固定値の電圧を出力する広範囲DC/DCコンバータと、
前記外部電源の出力及び前記広範囲DC/DCコンバータの入力に接続され、前記外部電源の出力電圧の下降に応じて放電を行う、供給電力安定化用の放電器と、
を有することを特徴とする給電システム。 - 前記広範囲DC/DCコンバータは、複数の前記外部電源の出力電圧の何れか一つを選択的に出力する切替器に接続されており、該切替器及び該広範囲DC/DCコンバータに前記放電器が接続されたことを特徴とする請求項1に記載の給電システム。
- 前記切替器が前記外部電源との接続を解除して他の前記外部電源と接続されるまでの電力供給停止期間に、前記放電器が放電を行うことにより、前記広範囲DC/DCコンバータへ電力を供給するように構成されたことを特徴とする請求項2に記載の給電システム。
- 前記電子機器には、互いに異なる直流電圧で作動する複数の部品が含まれていることを特徴とする請求項1乃至3の何れかに記載の給電システム。
- 前記放電器は、前記外部電源の出力電圧の上昇/下降に応じて充電/放電を行う、供給電力安定化用の充放電器であることを特徴とする請求項1乃至4の何れかに記載の給電システム。
- 前記充放電器は、電気二重層キャパシターを含むことを特徴とする請求項5に記載の給電システム。
- 前記充放電器は、充電バッテリーを含むことを特徴とする請求項5に記載の給電システム。
- 前記充放電器は、一次電池を含むことを特徴とする請求項5に記載の給電システム。
- 前記広範囲DC/DCコンバータが入力する直流電圧は、安全電圧60V以下の範囲内で変動することを特徴とする請求項1乃至8のいずれかに記載の給電システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/570,025 US20180166909A1 (en) | 2015-04-30 | 2016-04-28 | Power supply system |
JP2017515609A JP6877684B2 (ja) | 2015-04-30 | 2016-04-28 | 給電システム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015092823 | 2015-04-30 | ||
JP2015-092823 | 2015-04-30 |
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WO2016175286A1 true WO2016175286A1 (ja) | 2016-11-03 |
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PCT/JP2016/063368 WO2016175286A1 (ja) | 2015-04-30 | 2016-04-28 | 給電システム |
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US (1) | US20180166909A1 (ja) |
JP (1) | JP6877684B2 (ja) |
WO (1) | WO2016175286A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007104794A (ja) * | 2005-10-03 | 2007-04-19 | Yutaka Denki Seisakusho:Kk | 多出力スイッチング電源装置 |
US20090021078A1 (en) * | 2007-07-18 | 2009-01-22 | Selver Corhodzic | Direct-Coupled IT Load |
JP2010110072A (ja) * | 2008-10-29 | 2010-05-13 | Nec Network & Sensor Systems Ltd | 電源瞬断対策回路および電子機器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000197347A (ja) * | 1998-12-25 | 2000-07-14 | Hitachi Ltd | 電源装置 |
JP4828511B2 (ja) * | 2007-12-03 | 2011-11-30 | 日本電信電話株式会社 | バックアップ電源およびその制御方法 |
JP2014108008A (ja) * | 2012-11-29 | 2014-06-09 | Sumitomo Electric Ind Ltd | 蓄電装置、及びこれに用いる制御装置、コンピュータプログラム、電源装置 |
JP2014193010A (ja) * | 2013-03-27 | 2014-10-06 | Toshiba Tec Corp | 電子機器 |
-
2016
- 2016-04-28 WO PCT/JP2016/063368 patent/WO2016175286A1/ja active Application Filing
- 2016-04-28 US US15/570,025 patent/US20180166909A1/en not_active Abandoned
- 2016-04-28 JP JP2017515609A patent/JP6877684B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007104794A (ja) * | 2005-10-03 | 2007-04-19 | Yutaka Denki Seisakusho:Kk | 多出力スイッチング電源装置 |
US20090021078A1 (en) * | 2007-07-18 | 2009-01-22 | Selver Corhodzic | Direct-Coupled IT Load |
JP2010110072A (ja) * | 2008-10-29 | 2010-05-13 | Nec Network & Sensor Systems Ltd | 電源瞬断対策回路および電子機器 |
Also Published As
Publication number | Publication date |
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US20180166909A1 (en) | 2018-06-14 |
JPWO2016175286A1 (ja) | 2018-05-10 |
JP6877684B2 (ja) | 2021-05-26 |
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