CN100373734C - Power system - Google Patents
Power system Download PDFInfo
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- CN100373734C CN100373734C CNB2004800067631A CN200480006763A CN100373734C CN 100373734 C CN100373734 C CN 100373734C CN B2004800067631 A CNB2004800067631 A CN B2004800067631A CN 200480006763 A CN200480006763 A CN 200480006763A CN 100373734 C CN100373734 C CN 100373734C
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- power supply
- demand
- power
- electric power
- electric
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- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- 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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
There is provided a power system including a plurality of power consumers and suppliers interconnected by a power consumption/supply control device. This power system does not depend on the conventional power system. A plurality of power consumers/suppliers having a generator (101), a capacitor (102), a plurality of loads (103), and a power consumption/supply control device (104) are interconnected via a power consumption/supply line W. The power consumption/supply control device judges whether power shortage or power surplus is caused in the power consumer/supplier (11) having the power consumption/supply control device. When power shortage is to be caused in the power consumer/supplier (11), power is received from other power consumers/suppliers (12 to 15) having a generator and/or a capacitor. When power surplus is to be caused in the power consumer/supplier (11), power is supplied to the other power consumers/suppliers (11 to 15).
Description
Technical field
The present invention relates to a plurality of power supply and demand square tubes crosses the power supply and demand control appliance and interconnects the electric power system that forms.
Background technology
Electric power system always as shown in Figure 8, is that the mountain top is the foot of the hill ' emit system ' with party in request 92 with extensive power plant 91 basically.In Fig. 8,, introduce ' cyclic system ' in a part in order to ensure a plurality of power transmission systems.This kind electric power system is (for example tens thousand of km of wide area
2), and, constitute as triangular web on a large scale (tens of GW).
On the other hand, in recent years, the interconnection type of solar power generation, fuel cell disperses electricity generation system (for example with reference to patent documentation 1) noticeable.The interconnection type disperses electricity generation system, usually, is in the stub area of always radial electric power system or constructed near terminal regional area, with getting in touch of this electric power system be prerequisite.
[patent documentation 1] spy opens flat 6-327146 number
In the NETWORK STRUCTURE PRESERVING POWER SYSTEM always shown in Fig. 8, loss is very big because the conveying of electric power is died on long distance in large quantities, in addition because disperse to exist, so be difficult to construct the extensive power plant that utilizes these energy by this regenerative resource in the generating of regenerative resources such as solar wind-energy.
Summary of the invention
The object of the present invention is to provide a kind of a plurality of power supply and demand square tube to cross the power supply and demand control appliance and interconnect the electric power system that does not rely on electric power system always that forms.
Electric power system of the present invention, crossing the power supply and demand circuit by a plurality of power supply and demand square tubes interconnects and constitutes, this power supply and demand side possesses at least one generating equipment, and/or at least one electric energy storage device, at least one power consumption equipment and power supply and demand control appliance, it is characterized in that, aforementioned power supply and demand control appliance judges in possessing the aforementioned electric power supply and demand side of this power supply and demand control appliance whether power shortage to take place, whether the electric power residue perhaps takes place, the occasion of power shortage takes place in this power supply and demand side, obtain electric power from other power supply and demand sides that possess aforementioned generating equipment and/or aforementioned electric energy storage device
The remaining occasion of electric power takes place in this power supply and demand side, and electric power is given to other power supply and demand sides.
In addition, electric power system of the present invention is crossed the power supply and demand circuit by a plurality of power supply and demand square tubes and is interconnected and constitute, this power supply and demand side possesses at least one generating equipment, and/or at least one electric energy storage device, at least one power consumption equipment and power supply and demand control appliance, it is characterized in that
Aforementioned a plurality of power supply and demand side is divided into a plurality of groups, and the power supply and demand control appliance that belongs to each group judges whether power shortage takes place in this group, and whether the electric power residue perhaps takes place,
The occasion of power shortage takes place in this group, and the group that the power supply and demand side that possesses aforementioned generating equipment and/or aforementioned electric energy storage device is subordinated to other obtains electric power,
In this group the remaining occasion of electric power takes place, electric power is given to other groups.
In the present invention, not having electric power system always, is the independently electric power system of each power supply and demand side basically.That is to say, each power supply and demand side when power shortage electric power residue takes place, and other power supply and demand sides between carry out the supply and demand of electric power, in addition whereby with the purpose that stands on its own as of overall system.
In the present invention, a plurality of aforementioned electric power supply and demand sides can be connected to branch-like power supply and demand circuit, beads chain power supply and demand circuit, and radial power supply and demand circuit, netted power supply and demand circuit is perhaps these power supply and demand circuits that combines.
In addition, in the present invention, aforementioned power supply and demand control appliance can and the aforementioned power supply and demand control appliance of other power supply and demand sides between carry out the handing-over of the supply and demand information of electric power via data communication network.
In the present invention, in order to bring into play the advantage of DC delivery electricity fully, can connect the mutual DC of a plurality of aforementioned electric power supply and demand sides.
Description of drawings
Fig. 1 is the key diagram of an example of expression electric power system of the present invention,
Fig. 2 is in electric power system of the present invention, the key diagram when the power supply and demand control appliance of power supply and demand side and other power supply and demand sides carry out the supply and demand of AC electric power,
Fig. 3 is in electric power system of the present invention, the key diagram when the power supply and demand control appliance of power supply and demand side and other power supply and demand sides carry out the supply and demand of DC electric power,
Fig. 4 is in electric power system of the present invention, via power supply and demand side house wiring supply with the key diagram of the occasion of DC electric power to load,
Fig. 5 is illustrated in the electric power system of the present invention, and power supply and demand side is by the key diagram of the situation of form a social stratum,
Fig. 6 (A) is the key diagram that power supply and demand side connects into the occasion of branch's shape, (B) is the key diagram that power supply and demand side connects into starlike occasion, (C) is the key diagram that power supply and demand side connects webbed occasion,
Fig. 7 is expression and the figure of a plurality of other power supply and demand sides via the example of the power supply and demand side of different power supply and demand circuit connections,
Fig. 8 is a key diagram of representing electric power system always.
Embodiment
The electric power system 1 of Fig. 1 only illustrates the power supply and demand side of a plurality of power supply and demand sides 11～15.Each power supply and demand side 11～15 interconnects via power supply and demand circuit W.
Power supply and demand side 11 possesses generating equipment 101, electric energy storage device 102, a plurality of loads (electric equipment) 103, and power supply and demand control appliance 104.Moreover a plurality of electric equipments 103 are represented with A1, A2, A3.In addition, in Fig. 1, other power supply and demand sides 12,13,14 and unillustrated other power supply and demand sides are also same with power supply and demand side 11, possess generating equipment, electric energy storage device, a plurality of load (electric equipment) and power supply and demand control appliance, and each equipment is connected by dendritic house wiring.
Among the present invention, between each power supply and demand side loose combination.That is to say that each power supply and demand side is the self-support type basically, can when power shortage takes place, accept the supply of electric power from other power supply and demand sides, when the electric power residue takes place to other power supply and demand side's supply capabilities.
Power supply and demand side 11 for example, is general household, collective residence, little middle large-scale plant, the high-rise mansion in low layer middle level etc.And then the group of a plurality of set such as these general households, collective residence also can be used as power supply and demand side 11 of the present invention and handles.
Typically, generating equipment 101 is DC power supplys such as solar cell array, fuel cell.As generating equipment 101 also useful wind power generation.Though wind power plant is AC power supplies normally, can carry out the AC/CD conversion to its output and use as the DC power supply.In addition, electric energy storage device 102 is DC power supplys.Load 103 is for example DC equipment or AC equipment such as electric light, air conditioner, refrigerator, electromagnetic oven, electric rice cooker.
When the electric power residue can take place in power supply and demand control appliance 104 in power supply and demand side 11, for example reduce and electric energy storage device 102 completely charges or when approaching full charging in the electricity usage amount of load 103, the electric power that generating equipment 101 is generated supplies to other power supply and demand sides that are connected in power supply and demand circuit W, and perhaps power supply and demand side 15.In addition, when power shortage can take place in power supply and demand control appliance 104 in power supply and demand side 11, when for example the electricity usage amount of load 103 sharply increases, power supply and demand control appliance via remaining other the power supply and demand sides 12,13,14 of the generation electric power that is connected in power supply and demand circuit W, perhaps the power supply and demand control appliance 153 described later of power supply and demand side 15 is accepted the supply of electric power, drive load 103, perhaps to electric energy storage device 102 electric power storages.
Power supply and demand side 15 possesses generating equipment 151, electric energy storage device 152 and power supply and demand control appliance 153.Moreover power supply and demand can be only to possess the some of generating equipment, electric energy storage device.Generating equipment 151 is middle and small scale equipment such as firepower, waterpower, wind-force typically, and electric energy storage device 152 is storage battery typically.Power supply and demand side 15 as previously mentioned can be to power supply and demand side 11 (perhaps, other power supply and demand sides 12～14 etc.) supply capability via power supply and demand control appliance 153.Opposite in addition, power supply and demand side 15 also can be from power supply and demand side 11 (perhaps, other power supply and demand sides 12～14 etc.) accept the supply of electric power.
The electric power that power supply and demand side 15 supplies to power supply and demand side's 11 grades be the electric power that generates by generating equipment 151 or electric power storage in the electric power of electric energy storage device 152, power supply and demand side 15 electric power that 11 grades are supplied with from power supply and demand side is the electric power of electric power storage in electric energy storage device 152.
In the electric power system shown in Fig. 1, power supply and demand control appliance 104 is in the occasion of carrying out the supply and demand of electric power with other power supply and demand sides 12～15, and this power supply and demand control appliance 104 carries out information exchange and determines the supply and demand condition with the power supply and demand control appliance of these other power supply and demand sides.
In the electric power system shown in Fig. 1, though can carry out with AC, the supply and demand of the electric power between also can carry out power supply and demand side with DC, in any case, can be used as local electric power system and construct, also can be used as the big electric power system that these electric power systems combine and construct.
In the electric power system shown in Fig. 1, though do not draw, the power supply and demand side that only is made up of load also is connected in power supply and demand circuit W sometimes.In addition, in the electric power system of Fig. 1,, carry out the equalization of supply and demand electric power by interconnecting a plurality of and various power supply and demand sides.
Be taken as jumbo occasion at electric energy storage device 102,, use low capacity (perhaps, not possessing electric energy storage device 102) as electric energy storage device 102 in the occasion that cost improves power supply and demand side 11, can be by supply of electric power load from other power supply and demand sides supplied with.In this occasion, in electric power system 1, preferably the different power supply and demand side's (for example dwelling house and office building) of time period consumption electric power mode mixes.In addition, as power supply and demand side 15, the form of preferably generating electricity difference (for example solar power plant and wind power plant) mixes.
Fig. 2 is the key diagram of the electric power system of the power supply and demand control appliance of expression power supply and demand side and the supply and demand that other power supply and demand sides carry out AC electric power.
Power supply and demand side 11a, 12a, 13a, 14a and the 15a of Fig. 2 is corresponding to the power supply and demand side 11,12,13,14 and 15 of Fig. 1.The power supply and demand control appliance 51 of power supply and demand side 11a among Fig. 2 possesses control device 511 and two-way AC/DC converter 512.
The control device of each power supply and demand side can be made of communicatedly order wire CL each other, can carry out the exchange of supply and demand information when power supply and demand.
In addition, the power supply and demand control appliance 61 of power supply and demand side 15a possesses control device 611 and two-way AC/AC or DC/AC converter 612.When carrying out the supply and demand of AC electric power between power supply and demand side, between must carry out the coupling of electric current and voltage frequency plot.This coupling is undertaken by power supply and demand control appliance 51,61.Moreover, though do not draw among Fig. 2, in power supply and demand control appliance 51,61, can also possess flow restricter, accumulative total kilowatt meter etc.
Fig. 3 is the key diagram of the electric power system of the power supply and demand control appliance of expression power supply and demand side and the supply and demand that other power supply and demand sides carry out DC electric power.
Power supply and demand side 11b, 12b, 13b, 14b and the 15b of Fig. 3 is corresponding to the power supply and demand side 11,12,13,14 and 15 of Fig. 1.The power supply and demand control appliance 71 of power supply and demand side 15b among Fig. 3 possesses control device 711 and two-way DC/DC converter 712.
The control device of each power supply and demand side can be made of communicatedly order wire CL each other, can carry out the exchange of supply and demand information when power supply and demand.
In addition, the power supply and demand control appliance 81 of power supply and demand side 11b possesses control device 811 and two-way DC/DC or DC/AC converter 812.When between power supply and demand side, carrying out the supply and demand of electric power, carry out the adjustment of electric current and voltage with DC.Moreover, though do not draw among Fig. 3, in power supply and demand control appliance 71,81, can also possess flow restricter, accumulative total kilowatt meter etc.
Fig. 4 is that power supply and demand side is via the key diagram of house wiring to the occasion of load distribution DC electric power.
In the power supply and demand side of Fig. 4 11c, generating equipment and electric energy storage device and a plurality of load in the power supply and demand side shown in Fig. 1 11 are shown particularly.Moreover the power supply and demand control appliance 71 of Fig. 4 is identical with the power supply and demand control appliance 71 of Fig. 3.
In power supply and demand side 11c, generating equipment is a solar cell array 701, and electric energy storage device is a storage battery 702, and a plurality of loads are DC load 7031 and AC load 7032.
Here, two-way DC/DC converter 712 carries out the supply and demand of electric power between storage battery 702, solar cell array 701, DC load 7031, and via DC/AC converter 706 and AC load 7032 between carry out the supply and demand of electric power.
The electric power that solar cell array 701 generates supplies to storage battery 702, DC load 7031 via for example two-way DC/DC converter 712, perhaps supplies to AC load 7032 via DC/AC converter 706.
Power supply and demand control appliance 71 possesses the function of the charging of control storage battery 702, and compensation is to the function of the stable output of house wiring L side.
Electric power from power supply and demand control appliance 71 supplies to DC load 7031 via house wiring L, DC consent 7051, supplies to AC load 7032 from the electric power of power supply and demand control appliance 71 via house wiring L, DC/AC converter 706, AC consent 7052.Moreover though in Fig. 4, DC consent, AC consent illustrate one respectively, also can be provided with a plurality ofly respectively, and DC load, AC load are connected in them.
, in the electric power system of Fig. 1, can handle the group of the power supply and demand side that compiles right quantity as a power supply and demand side.As shown in Figure 5, power supply and demand side's group G11, G12 ... the group (for example, about tens of～10,000 families) of expression this moment.
In Fig. 5, power supply and demand side group G11, G12 ... interconnect via power supply and demand control appliance S1 each other.In addition, power supply and demand side's group G11, G12 ... upper stratum by G21, G22 ... expression, more upper stratum by G31, G32, G33 ... expression.Here, though do not draw, be formed with than G31, G32, G33 ... more upper stratum.
For example, power supply and demand side's group G11, G12 ... be taken as ' street ' unit, G21, G22 ... be taken as ' city ' unit, G31, G32, G33 ... be taken as ' area ' unit.
Though in Fig. 5, power supply and demand side group G11, G12 ... interconnect by power supply and demand control appliance S1 and other power supply and demand sides, each upper stratum is connected via power supply and demand control appliance S2, the mutual stratum of S3, S4... with the next stratum.
In above-mentioned example, each power supply and demand side has been described, connect into the occasion of the branch-like shown in Fig. 6 (A).Each power supply and demand side also can connect into starlike shown in Fig. 6 (B), also can connect into netted shown in Fig. 6 (C).And then, also can connect into compound these form.
Fig. 7 is the figure of the example of the power supply and demand side that is connected with a plurality of other power supply and demand sides via different power supply and demand circuits of expression.In Fig. 7, two-way DC/DC converter 712 carries out the transfer of electric power and can regulate the power supply and demand of other power supply and demand sides in the connection form each other of the power supply and demand side shown in for example Fig. 6 (C) between power supply and demand circuit W1, W2, W3.
If use the present invention, then can provide a plurality of power supply and demand square tubes to cross the power supply and demand control appliance and interconnect and constitute, do not rely on the electric power system of electric power system always.
Claims (5)
1. electric power system is crossed the power supply and demand circuit by a plurality of power supply and demand square tubes and is interconnected and constitute, and this power supply and demand side possesses at least one generating equipment, and/or at least one electric energy storage device, at least one power consumption equipment and power supply and demand control appliance is characterized in that
Aforementioned power supply and demand control appliance judges in possessing the aforementioned electric power supply and demand side of this power supply and demand control appliance whether power shortage to take place, whether the electric power residue perhaps takes place, the occasion of power shortage takes place in this power supply and demand side, obtain electric power from other power supply and demand sides that possess aforementioned generating equipment and/or aforementioned electric energy storage device
The remaining occasion of electric power takes place in this power supply and demand side, and electric power is given to other power supply and demand sides.
2. electric power system is crossed the power supply and demand circuit by a plurality of power supply and demand square tubes and is interconnected and constitute, and this power supply and demand side possesses at least one generating equipment, and/or at least one electric energy storage device, at least one power consumption equipment and power supply and demand control appliance is characterized in that
Aforementioned a plurality of power supply and demand side is divided into a plurality of groups,
The power supply and demand control appliance that belongs to each group judges whether power shortage takes place in this group, whether the electric power residue perhaps takes place,
The occasion of power shortage takes place in this group, and the group that the power supply and demand side that possesses aforementioned generating equipment and/or aforementioned electric energy storage device is subordinated to other obtains electric power,
In this group the remaining occasion of electric power takes place, electric power is given to other groups.
3. the electric power system described in the claim 1 or 2 is characterized in that, a plurality of aforementioned electric power supply and demand sides are connected to branch-like power supply and demand circuit, beads chain power supply and demand circuit, radial power supply and demand circuit, netted power supply and demand circuit is perhaps these power supply and demand circuits that combines.
4. the electric power system described in the claim 1 or 2 is characterized in that, carries out the exchange of the supply and demand information of electric power via data communication network between the aforementioned power supply and demand control appliance of aforementioned power supply and demand control appliance and other power supply and demand sides.
5. the electric power system described in the claim 1 or 2 is characterized in that, the mutual DC of a plurality of aforementioned electric power supply and demand sides connects.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003034572 | 2003-02-13 | ||
| JP034572/2003 | 2003-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1759516A CN1759516A (en) | 2006-04-12 |
| CN100373734C true CN100373734C (en) | 2008-03-05 |
Family
ID=32866271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800067631A Expired - Fee Related CN100373734C (en) | 2003-02-13 | 2004-02-13 | Power system |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5100009B2 (en) |
| CN (1) | CN100373734C (en) |
| BR (1) | BRPI0407429A (en) |
| RU (1) | RU2005128512A (en) |
| WO (1) | WO2004073136A1 (en) |
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2004
- 2004-02-13 BR BR0407429-7A patent/BRPI0407429A/en not_active Application Discontinuation
- 2004-02-13 RU RU2005128512/09A patent/RU2005128512A/en unknown
- 2004-02-13 CN CNB2004800067631A patent/CN100373734C/en not_active Expired - Fee Related
- 2004-02-13 WO PCT/JP2004/001562 patent/WO2004073136A1/en active Application Filing
- 2004-02-13 JP JP2005505005A patent/JP5100009B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108055A (en) * | 1984-12-05 | 1986-07-30 | 山武-霍尼韦尔公司 | The control method of distributed electric power demand |
| JP2002044870A (en) * | 2000-07-27 | 2002-02-08 | Nippon Telegr & Teleph Corp <Ntt> | Dispersed energy community system and control method |
| EP1255340A1 (en) * | 2000-09-29 | 2002-11-06 | Matsushita Electric Industrial Co., Ltd. | Power supply/demand control system |
| JP2002291162A (en) * | 2001-03-27 | 2002-10-04 | Sanyo Electric Co Ltd | Distributed generator system, and system and method for power supply therewith |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102668303A (en) * | 2009-11-06 | 2012-09-12 | 松下电器产业株式会社 | Electric power interchange system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2004073136A1 (en) | 2006-06-01 |
| WO2004073136A1 (en) | 2004-08-26 |
| JP5100009B2 (en) | 2012-12-19 |
| CN1759516A (en) | 2006-04-12 |
| RU2005128512A (en) | 2006-02-10 |
| BRPI0407429A (en) | 2006-01-24 |
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