CN201839224U - Power supply and distribution system for building - Google Patents
Power supply and distribution system for building Download PDFInfo
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- CN201839224U CN201839224U CN2010202735635U CN201020273563U CN201839224U CN 201839224 U CN201839224 U CN 201839224U CN 2010202735635 U CN2010202735635 U CN 2010202735635U CN 201020273563 U CN201020273563 U CN 201020273563U CN 201839224 U CN201839224 U CN 201839224U
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Abstract
The utility model discloses a power supply and distribution system for a building, which comprises an alternating-current/direct-current (AC/DC) converter group, a direct-current (DC) circuit breaker, a 600V DC power transmission line, a 350V DC power transmission line and electric equipment, wherein the AC/DC converter is connected to the DC circuit breaker, the 600V DC power transmission line and the 350V DC power transmission line are connected to the DC circuit breaker, and the tail ends of the 600V DC power transmission line and the 350V DC power transmission line are respectively connected to the electric equipment. The circuit transmission mode is as follows: alternating current of a pre-stage power distribution system is converted into direct current through the AC/DC converter group, and then the direct current is transmitted to the end electric equipment by switching off or on the power anode, or simultaneously switching off or on the anode and the cathode of the DC circuit breaker through the 600V DC power transmission line and the 350V DC power transmission line. The power supply and distribution system has the advantages of reducing the use of auxiliary components and cables, reducing electrical loss, saving electrical energy, and reducing comprehensive cost by 30%.
Description
Technical field
The utility model relates to electric power conveying technology field, especially a kind of power supply system.
Background technology
Traditional power supply system is to pass through AC-powered.As shown in Figure 1, its cabling mode is: 3 phase High Level AC Voltages are converted into 3 phase low-voltage ACs by transformer, by L1, L2, L3, N four wires and four-pole switch,, electric power is delivered to terminal power consumption equipment then in the mode of trunk formula and emanant Mixed cascading.Because the main power consumption equipment in the building comprises that the overwhelming majority such as inverter motor, light fixture, computer, notebook computer, printing, photocopier, television set, frequency conversion refrigerator, convertible frequency air-conditioner, various chargers finally use direct current as power source now, therefore need after arriving the power consumption equipment place, use after converting alternating current to direct current by alternating current by interchange, direct current transducer.This not only needs precious metal, semi-conducting materials such as more cable, switch, rectifier, and system complex, also to solve parasitic problems such as power factor, harmonic wave, electromagnetic consumable, construction cost height, current supply loss is big, has caused bigger pressure for the economy of saving, end carbon target.
The utility model content
The purpose of this utility model is, above-mentioned deficiency at prior art provides a kind of power supply system, send the design of electricity by direct current, not only reduced the use of auxiliary element, reduce cost, and can reduce electricity and decrease, save electric energy, reduce the wiring cable use amount, reduce cost, integrated cost reduces more than 30%, meets the energy-conservation growth requirement of society.
In order to reach above-mentioned purpose of design, the technical solution adopted in the utility model is as follows:
A kind of power supply system, comprise AC/DC converter bank, dc circuit breaker, 600V DC power transmission line, 350V DC power transmission line and power consumption equipment, described AC/DC transducer is connected to dc circuit breaker by cable, insert 600V DC power transmission line and 350V DC power transmission line on the dc circuit breaker respectively, 600V DC power transmission line and 350V DC power transmission line end insert power consumption equipment respectively; Its circuit transfer mode is: the alternating current that transformer or prime distribution system are sent here can AC/DC converter bank in parallel convert direct current to by one or one group, again by cutting off or energized is anodal or dc circuit breaker and 600V DC power transmission line, the 350V DC power transmission line of cutting off or connect both positive and negative polarity simultaneously is transported to terminal power consumption equipment with direct current power.
Preferably, described 600V DC power transmission line and 350V DC power transmission line end are respectively equipped with DC power distribution cabinet, and DC distribution is exported some loops cashier's office in a shop, and each loop directly is connected to terminal power consumption equipment by cable.
More preferably, described each loop connects plug-board bus bar, and subordinate's distribution box or terminal power consumption equipment are connected on the bus by plug connector elements.
Preferably, the described DC distribution identical generating equipment of several voltages that inserts in parallel cashier's office in a shop, generating equipment is incorporated DC power distribution cabinet into by isolation circuit breakers.
Preferably, described 600V DC power transmission line and 350V DC power transmission line insert the power consumption equipment place and are provided with diode and storage capacitor respectively.
Preferably, described 600V DC power transmission line and 350V DC power transmission line end insert the DC/AC transducer respectively.
The beneficial effect of power supply system described in the utility model is: send the design of electricity by direct current, not only reduced the use of auxiliary element, reduce cost, and can reduce electricity and decrease, save electric energy, reduce the wiring cable use amount, reduce cost, integrated cost reduces more than 30%, meets the energy-conservation growth requirement of society.
This design has multiple wire laying mode, can reduce the use of cable, saves cable, further reduces and send electric cost.
Can make full use of the electric energy that various generating equipments are sent, make regenerative electric energy farthest be used, reduce the use of remote power.
Anti-hit is simple in structure, need not additionally to increase stand-by circuit, reduces cable and uses, and further reduces wiring cost.
Description of drawings
Fig. 1 is the schematic diagram of power supply system in the prior art;
Fig. 3 is the star wiring schematic diagram of power supply system described in the utility model;
Horse stable 4 be the utility model the trunk shape wiring schematic diagram of fast power supply system;
Fig. 5 originally buys the circuit diagram that is incorporated into the power networks and joins with novel described power supply system ac-dc conversion;
Circle 6 is anti-power supply hit principle signal circles of power supply system described in the utility model.
Fig. 7 is the AC/DC conversion principle schematic that power supply system described in the utility model is used for AC load.
Among the figure:
1, AC/DC converter bank; 2, dc circuit breaker; 3,600V DC power transmission line; 4,350V DC power transmission line; 5, power consumption equipment; 6, DC power distribution cabinet; 7, generating equipment; 8, isolation circuit breakers; 9, DC/AC transducer; 10, loop.
Embodiment
Traditional building send, needing to carry out rectification through rectifier bridge after alternating current arrives power consumption equipment 5 proofreaies and correct, frequency converter carries out operations such as frequency conversion, not only need to increase a plurality of auxiliary elements, raise the cost, also can cause certain electricity to decrease, for overcoming this problem, we adopt direct current to send, can directly direct current be inserted power consumption equipment 5, save most of auxiliary element, as shown in Figure 2, the described power supply system of the utility model embodiment, comprise AC/DC converter bank 1, dc circuit breaker 2,600V DC power transmission line 3,350V DC power transmission line 4 and power consumption equipment 5, described AC/DC transducer 2 is connected to dc circuit breaker 2 by cable, insert 600V DC power transmission line 3 and 350V DC power transmission line 4 on the dc circuit breaker 2 respectively, the 600V DC power transmission line 3 terminal power consumption equipments 5 that insert, the 350V DC power transmission line 4 terminal power consumption equipments 5 that insert, 600V DC power transmission line 3 inserts 600V power consumption equipment 5,350V DC power transmission line 4 inserts 350V power consumption equipment 5, its circuit transfer mode is: the alternating current that transformer or prime distribution system are sent here can AC/DC converter bank 1 in parallel convert direct current to by one or one group, pass through the dc circuit breaker 2 and the 600V DC power transmission line 3 of cut-out or energized positive pole or cut-out simultaneously or connection both positive and negative polarity again, 350V DC power transmission line 4 is transported to terminal power consumption equipment 5 with direct current power, generally adopt 600 volts of direct currents to use for variable-frequency motor equipment under construction, direct current is given illumination and low-power for 350 volts, office equipment uses.
As shown in Figure 3,600V DC power transmission line 3 ends are provided with DC power distribution cabinet 6, three loops of output on the DC power distribution cabinet 6, and each loop directly is connected to terminal power consumption equipment 5 by cable; 350V DC power transmission line 4 ends are provided with DC power distribution cabinet 6, three loops of output on the DC power distribution cabinet 6, and each loop directly is connected to terminal power consumption equipment 5 by cable.Can save a large amount of cables by this mode of connection, reduce wiring cost.
As shown in Figure 4,600V DC power transmission line 3 ends are provided with DC power distribution cabinet 6, three loops 10 of output on the DC power distribution cabinet 6, each loop 10 connects plug-board bus bar, subordinate's distribution box or terminal power consumption equipment are connected on the bus by plug connector elements, form the wiring form of trunk+some branches, 350v DC power transmission line 4 ends are provided with DC power distribution cabinet 6, three loops 10 of output on the DC power distribution cabinet 6, each loop 10 connects plug-board bus bar, subordinate's distribution box or terminal power consumption equipment are connected on the bus by plug connector elements, form the wiring form of trunk+some branches.Can save a large amount of cables by this mode of connection, reduce wiring cost.
In addition, in most building, also dispose the renewable energy resources such as wind/light, when adopting the power delivery mode of conventional AC electricity, can only receive the renewable energy resources such as wind/light in the rated range, cause the problems such as insufficient of utilizing of the renewable energy resources, can overcome this problem after the employing direct current send electricity.As shown in Figure 5, the identical generating equipment 7 of several voltages that inserts in parallel on the fast DC power distribution cabinet 6, generating equipment 7 is incorporated DC power distribution cabinet 6 into by isolation circuit breakers 8, and to enlarge power supply capacity, generating equipment 7 comprises regenerated electric powers such as wind power generation, solar power generation, thermo-electric generation.
Sending at building also needs to provide emergency wiring in the electricity, traditional alternating current power delivery mode, its emergency wiring provides the duplicate supply circuit, after circuit commonly used damages, send by another supply line, it has increased the wiring amount of electric wire, improved cost, it can not adopt and the mode on road is sent, can overcome this problem very easily after sending electricity by direct current, concrete execution mode as shown in Figure 6, described 600V DC power transmission line 3 inserts power consumption equipment 5 places and is provided with diode and storage capacitor, 350V DC power transmission line 4 inserts power consumption equipment 5 places and is provided with diode and storage capacitor, and instant power-down impacts self-contained equipment can to prevent higher level's electric power system to occur in short-term by diode and storage capacitor.
As shown in Figure 7, the DC power-supply system end is self-contained, generally is motor, when needing AC power, adopts AC-dc converter that direct current is transformed to alternating current single-phase or the required frequency of three-phase and uses to load.Concrete mode is: the described 600V DC power transmission line 3 terminal DC/AC transducers 9 that insert, incoming transport power consumption equipment 5 on the DC/AC transducer 9, described 350V DC power transmission line 4 terminal DC/AC transducer 9, the incoming transport power consumption equipments 5 on the DC/AC transducer 9 of inserting.
The above only is an example of the present utility model; example does not limit the utility model simultaneously; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. power supply system, it is characterized in that: comprise AC/DC converter bank, dc circuit breaker, 600V DC power transmission line, 350V DC power transmission line and power consumption equipment, described AC/DC transducer is connected to dc circuit breaker by cable, insert 600V DC power transmission line and 350V DC power transmission line on the dc circuit breaker respectively, 600V DC power transmission line and 350V DC power transmission line end insert power consumption equipment respectively.
2. power supply system according to claim 1, it is characterized in that: described 600V DC power transmission line and 350V DC power transmission line end are respectively equipped with DC power distribution cabinet, DC distribution is exported some loops cashier's office in a shop, and each loop directly is connected to terminal power consumption equipment by cable.
3. power supply system according to claim 2 is characterized in that: described each loop connects plug-board bus bar, and subordinate's distribution box or terminal power consumption equipment are connected on the bus by plug connector elements.
4. power supply system according to claim 2 is characterized in that: the described DC distribution identical generating equipment of several voltages that inserts in parallel cashier's office in a shop, generating equipment is incorporated DC power distribution cabinet into by isolation circuit breakers.
5. power supply system according to claim 1 and 2 is characterized in that: described 600V DC power transmission line and 350V DC power transmission line insert the power consumption equipment place and are provided with diode and storage capacitor respectively.
6. power supply system according to claim 1 and 2 is characterized in that: described 600V DC power transmission line and 350V DC power transmission line end insert the DC/AC transducer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202735635U CN201839224U (en) | 2010-07-28 | 2010-07-28 | Power supply and distribution system for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202735635U CN201839224U (en) | 2010-07-28 | 2010-07-28 | Power supply and distribution system for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839224U true CN201839224U (en) | 2011-05-18 |
Family
ID=44009325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202735635U Expired - Fee Related CN201839224U (en) | 2010-07-28 | 2010-07-28 | Power supply and distribution system for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619098A (en) * | 2013-11-26 | 2014-03-05 | 南车株洲电力机车研究所有限公司 | Fan safe emergency lighting system and method thereof |
-
2010
- 2010-07-28 CN CN2010202735635U patent/CN201839224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619098A (en) * | 2013-11-26 | 2014-03-05 | 南车株洲电力机车研究所有限公司 | Fan safe emergency lighting system and method thereof |
| CN103619098B (en) * | 2013-11-26 | 2015-10-21 | 南车株洲电力机车研究所有限公司 | Fan safe emergency lighting system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20190728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |