CN202856381U - System capable of compensating power grid transmission loss through wind power generation - Google Patents
System capable of compensating power grid transmission loss through wind power generation Download PDFInfo
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- CN202856381U CN202856381U CN2012205749978U CN201220574997U CN202856381U CN 202856381 U CN202856381 U CN 202856381U CN 2012205749978 U CN2012205749978 U CN 2012205749978U CN 201220574997 U CN201220574997 U CN 201220574997U CN 202856381 U CN202856381 U CN 202856381U
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- power generation
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- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model discloses a system capable of compensating power grid transmission loss through wind power generation. The system comprises a power grid. The power grid comprises transmission nodes and transmission lines which are arranged separately. The transmission nodes are provided with power racks. The transmission lines are connected onto the power racks of the transmission nodes. At least part of the power racks of the power grid are installed with wind power generation devices for compensating power grid transmission loss. The wind power generation devices and the transmission lines are electrically connected with inverters at least. Pollution-free and clean wind power is injected into the power grid continuously, the power grid transmission loss is compensated in an active mode, advantages of high electric energy transmission efficiency and high electric energy transmission quality can be realized, the transmission stability of the power grid can be maintained, and the electricity demand of end users can be greatly satisfied.
Description
Technical field
The utility model relates to a kind of system by wind power generation compensation network transmission losses.
Background technology
Grid power transmission loss and clean energy resource such as wind power grid " quagmire " are two major issues of current power grid construction.
No matter be traditional grid power transmission pattern or the intelligent grid Transmission Mode that is rising, or be high-voltage fence or extra-high voltage grid Transmission Mode, transmission losses is always unavoidable.Transmission losses refers to that electric energy is transported to by electrical network in the process of another place by a place, and the part electric energy is consumed by electric wire, dissipates with the heat energy form.There are close relationship in the electric wire material that the loss of electrical power and electrical network set up and power delivery distance.The degree of electrical piano power loss is directly proportional with transmission distance, amasss with transmission voltage and wire cross-section to be inversely proportional to.
Up to now, people have taked multiple means to reduce transmission losses, such as setting up extra-high voltage grid, exploitation superconductive power transmission electric wire (cable), overstriking cable cross-section etc.All these can only reduce electric power consumption to a certain extent, but the problem of the aspects such as its development cost and Environmental security still can not be ignored.These methods that reduce transmission losses all are passive.Be limited to the restriction of material and scientific and technological level, and the restriction of cost budgeting, it is unpractical building on a large scale extra-high voltage grid.In existing power transmission electric network construction and operation, transmitted power loss General Requirements is no more than 10%, and under the superconductive power transmission experiment condition, the transmitted power loss can reach 0.5%.If the transmitted power proportion of goods damageds according to 5% are calculated, the user will use kilowatt-hour, and electrical network need to be carried 1.053 kilowatt hours.If user terminal has been consumed 1,000,000 degree electricity, power plant will reach 1052632 degree electricity by the electricity that electrical network flows to the user so.For this reason, power plant wants multiple 52632 degree electricity.According to 0.5 yuan of calculating of kilowatt-hour, power plant will waste 26326 yuan for this reason.This is the cost allowance from economic angle measuring and calculating power plant.If the loss of power plant conversion is the consumption of coal resources, its environmental pollution that causes is polluted waste gas and waste residue such as discharging carbon dioxide and sulfur dioxide etc., and the waste of valuable coal resources is surprising.People always wish to set up extra-high voltage grid and reduce transmission losses by seeking or inventing new power transmission material, perhaps are incorporated into the power networks by the success of a large amount of clean energy resourcies such as large-scale wind power field and solve electrical piano power loss.Yet these measures often are limited by the horizontal De of scientific technological advance Approximately processed and Financial cost budget De Approximately processed and can not obtain a large amount of popularizations.
Regenerative resource is the new forms of energy that the world today carries forward vigorously and national governments actively support.China and even world other countries such as the U.S. are all wideling popularize wind power generation, build large wind power plant and are incorporated into the power networks.Yet, because intermittence and the randomness of wind-force, and existing grid power transmission capacity exists peak and the limitation in low ebb time limit and the special electrical network of building for the clean energy resource generating need to drop into huge fund and long construction period, and the clean electric power of wind power generation place generation can't stably routinely flow to user terminal by electrical network.Restricted thus being incorporated into the power networks of wind power generation, although people are used wind energy by energy storage device, yet the construction cost of energy storage device head and shoulders above the scope that allows of economic benefit, also have energy storage technology not yet ripe.
The utility model content
The utility model provides the system by wind power generation compensation network transmission losses, and it has overcome grid power transmission loss and the existing technical problem of wind power grid " quagmire " in the background technology.
The technical scheme that adopts that the utility model solves its technical problem is:
System by wind power generation compensation network transmission losses, comprise electrical network, this electrical network comprises spaced apart transmission of electricity node and power transmission line, this transmission of electricity node is established electric frame, this power transmission line is connected to the electric frame of transmission of electricity node, have at least in whole electric frame of this electrical network on the electric frame of part to be equiped with wind power generation plant for the compensation network transmission losses, in this wind power generation plant and the power transmission line at least electricity be connected to inverter.
Among one preferred embodiment: electricity connects transformer between this inverter and power transmission line.
Among one preferred embodiment: electricity connects storage battery between this wind power generation plant and inverter.
Among one preferred embodiment: electricity connects controller between this wind power generation plant and storage battery.
Among one preferred embodiment: this wind power generation plant is installed in the top of electric frame.
Among one preferred embodiment: all be equiped with wind power generation plant on whole electric frame of this electrical network.
The technical program is compared with background technology, and it has following advantage:
The wind-powered electricity generation of the free of contamination cleaning of sustainable utilization injects electrical network, adopt positive pattern to remedy the grid power transmission loss, to overcome the existing problem of background technology and to produce following technique effect: a, establish wind power generation plant at a plurality of transmission of electricity nodes, take full advantage of electrical network cleaning wind energy on every side, remedy in real time the grid power transmission loss, realize keeping even farthest being promoted of grid power transmission quality; B, each wind power generation plant direct grid-connected, directly combine together with existing electrical network, realize distributed wind-electricity integration technology, in real time wind energy is transformed into the cleaning electric energy and inputs electrical network, efficiently, need not to install high-power such as MW class wind turbine, can avoid the drawback that is incorporated into the power networks in the large scale wind field, can select middle-size and small-size wind power generation plant, then be installed on the electric frame safe and reliable, cost is low (according to the at present measuring and calculating of cost, the cost that power plant wastes can be installed two cover the application's system at least, will greatly reduce thus the cost of power plant's generating, guarantees simultaneously the power quality of user side), greatly the usefulness of the existing grid equipment of performance and facility solves wind farm grid-connected " bottleneck " quagmire of running into; C, because these transmission of electricity nodes often are distributed in the field, so its wind resource that faces is abundanter, wind energy is sufficient;
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 has illustrated the schematic diagram of the system of a preferred embodiment;
Fig. 2 has illustrated the wind power generation plant of a preferred embodiment and the electricity of electrical network connects schematic diagram.
Embodiment
Please refer to Fig. 1 and Fig. 2, the system by wind power generation compensation network transmission losses comprises electrical network, and this electrical network comprises spaced apart transmission of electricity node and power transmission line 10.This transmission of electricity node is established electric frame 20, and this power transmission line 10 is connected to the electric frame 20 of transmission of electricity node, has the wind power generation plant 30 that is equiped with on the electric frame 20 partly for the compensation network transmission losses in whole electric frame 20 of this electrical network at least.Best, this wind power generation plant 30 is installed in the top of electric frame 20.As required, can all be equiped with wind power generation plant 30 on whole electric frame 20 of this electrical network, or, only be equiped with wind power generation plant 30 in the open air the electric frame 20.
This wind power generation plant 30 is selected middle-size and small-size wind-driven generator, between it and the power transmission line 10 sequentially electricity be connected to controller 31, storage battery 32, inverter 33 and transformer 34.The direct current of these wind power generation plant 30 outputs stores by storage battery 32 via controller 31, and then adjust frequency to realize alternating current output by inverter 33, make it consistent with the frequency of electric current in the electrical network, behind suitable magnitude of voltage or voltage levvl, input electrical network by transformer 34 rising alternating voltages at last, realize that wind energy is to the successful conversion of electric energy.Among the present embodiment, this controller 31 can have following function: the one, and the protector of electrical network is avoided the transmission of electricity of electrical network excess load; The 2nd, the protector of wind power generation plant prevents that wind speed is excessive and causes the damage of wind-driven generator; The 3rd, with distribution system UNICOM, in order to control the opportunity of wind-electricity integration, safeguard the stability of whole network system.The protector of electrical network refers to when electrical network need not electric energy and replenishes, and the electrical power storage of wind-driven generator output at storage battery, and released unnecessary wind-powered electricity generation, and then protect the safety of electrical network.Among the present embodiment, this inverter can be single, also can be a plurality of inverters.
The usefulness of the system of the present embodiment is mainly reflected in economic benefit and two aspects of social benefit.Economic benefit shows the cost that reduced power plant's generating and the cost of user terminal electricity consumption.The consumption that social benefit then is embodied in the petrochemical industry resource reduces in large quantities, and the living environment of cleaning is provided for society thus, has realized the society development strategy target of low-carbon economy.
The above, it only is the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of namely doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (6)
1. pass through the system of wind power generation compensation network transmission losses, comprise electrical network, this electrical network comprises spaced apart transmission of electricity node and power transmission line, this transmission of electricity node is established electric frame, this power transmission line is connected to the electric frame of transmission of electricity node, it is characterized in that: have at least in whole electric frame of this electrical network on the electric frame of part to be equiped with wind power generation plant for the compensation network transmission losses, in this wind power generation plant and the power transmission line at least electricity be connected to inverter.
2. the system by wind power generation compensation network transmission losses according to claim 1, it is characterized in that: electricity connects transformer between this inverter and power transmission line.
3. the system by wind power generation compensation network transmission losses according to claim 2, it is characterized in that: electricity connects storage battery between this wind power generation plant and inverter.
4. the system by wind power generation compensation network transmission losses according to claim 3, it is characterized in that: electricity connects controller between this wind power generation plant and storage battery.
5. according to claim 1 and 2 or 3 or 4 described systems by wind power generation compensation network transmission losses, it is characterized in that: this wind power generation plant is installed in the top of electric frame.
6. it is characterized in that: all be equiped with wind power generation plant on whole electric frame of this electrical network according to claim 1 and 2 or 3 or 4 described systems by wind power generation compensation network transmission losses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205749978U CN202856381U (en) | 2012-10-31 | 2012-10-31 | System capable of compensating power grid transmission loss through wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205749978U CN202856381U (en) | 2012-10-31 | 2012-10-31 | System capable of compensating power grid transmission loss through wind power generation |
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| Publication Number | Publication Date |
|---|---|
| CN202856381U true CN202856381U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205749978U Expired - Fee Related CN202856381U (en) | 2012-10-31 | 2012-10-31 | System capable of compensating power grid transmission loss through wind power generation |
Country Status (1)
| Country | Link |
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| CN (1) | CN202856381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345447A (en) * | 2023-04-12 | 2023-06-27 | 刘泓利 | Power generation electric energy transmission loss evaluation system |
-
2012
- 2012-10-31 CN CN2012205749978U patent/CN202856381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345447A (en) * | 2023-04-12 | 2023-06-27 | 刘泓利 | Power generation electric energy transmission loss evaluation system |
| CN116345447B (en) * | 2023-04-12 | 2023-10-13 | 山东奥德智慧新能源有限公司 | Power generation electric energy transmission loss evaluation system |
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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: 20130403 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |