CN105703379A - Power grid system - Google Patents
Power grid system Download PDFInfo
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- CN105703379A CN105703379A CN201610187353.6A CN201610187353A CN105703379A CN 105703379 A CN105703379 A CN 105703379A CN 201610187353 A CN201610187353 A CN 201610187353A CN 105703379 A CN105703379 A CN 105703379A
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- Prior art keywords
- compensating unit
- network system
- reactive
- unit
- power factor
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The application discloses a power grid system. The power grid system comprises a power supply end, a power consumption end, a control end and a transmission module, wherein the power supply end comprises multiple power generation devices and is provided with a first compensation unit; the transmission module is used for transmitting electric energy, generated by the power supply end, to the power consumption end and is provided with a second compensation unit; the power consumption end is provided with a third compensation unit; each of the first compensation unit, the second compensation unit and the third compensation unit comprises multiple reactive compensation components; the control end is used for acquiring power factors of the power grid system and controlling the amount of the reactive compensation components, which are connected to the power grid system, of the first compensation unit, the second compensation unit and the third compensation unit according to the power factors. The power grid system provided by the invention achieves a purpose of automatically adjusting the power factors of the power grid system, so that workers do not need to frequently adjust the amount of the reactive compensation components, which are connected to the power grid system, and the labor intensity of the workers is largely reduced.
Description
Technical field
The application relates to electrical reticulation design technical field, more particularly, it relates to a kind of network system。
Background technology
Power factor in network system refers to the ratio of active power and apparent energy, and the vector that apparent energy is active power and reactive power。The raising of power factor can be effectively reduced the power consumption in network system。The method improving described power factor in prior art is generally when the power factor in network system is relatively low, accesses a number of capacitor to realize reactive-load compensation, thus improving described power factor in above-mentioned network system；But reactive power is to ensure that the call parameter that network system is properly functioning, therefore needing again to reduce the capacitor of access network system when power factor is higher, to ensure the properly functioning of network system。And this allows for needing each node in network system to arrange staff, monitor the power factor in network system, and the capacitors count accessed in network system is constantly regulated according to power factor, not only need more personnel depaly, and the labor intensity of staff is higher。
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of network system, to realize the purpose of the power factor being automatically adjusted in network system, reduce personnel depaly and require the labor intensity with staff。
For realizing above-mentioned technical purpose, embodiments provide following technical scheme:
A kind of network system, including: feeder ear, electricity consumption end, control end and transport module；Wherein,
Described feeder ear includes multiple generating equipment, and described feeder ear has the first compensating unit；
The electric energy that described transport module is used for producing described feeder ear is to described electricity consumption end transmission, and described transport module has the second compensating unit；
Described electricity consumption end has the 3rd compensating unit, and described first compensating unit, the second compensating unit and the 3rd compensating unit all include multiple reactive-load compensation element；
Described control end is for obtaining the power factor in described network system, and the first compensating unit, the second compensating unit and the 3rd compensating unit access the reactive-load compensation number of elements of described network system according to described power factor controlling。
Preferably, described control end includes: acquiring unit and judging unit, wherein,
Described acquiring unit is for obtaining the power factor in described network system；
Described judging unit is for the quantity of the reactive-load compensation element in the first compensating unit according to described power factor controlling, the second compensating unit and the 3rd compensating unit described network system of access。
Preferably, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element in parallel of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
Preferably, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then the reactive-load compensation element in parallel of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system, and when described power factor is less than the second preset value, the reactive-load compensation element in parallel of the second predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
Preferably, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element series connection of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
Preferably, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then the reactive-load compensation element series connection of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system, and when described power factor is less than the second preset value, the reactive-load compensation element series connection of the second predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
Preferably, the span of described first preset value is 0.8-0.9, including endpoint value。
Preferably, the span of described second preset value is 0.75-0.85, including endpoint value。
Preferably, described reactive-load compensation element is Capacitor banks。
Preferably, in described first compensating unit, the second compensating unit and the 3rd compensating unit, the span of the quantity of reactive-load compensation element is 1-50, including endpoint value。
Can be seen that from technique scheme, embodiments provide a kind of network system, described network system obtains the power factor in network system by controlling end, and according to described power factor controlling the first compensating unit, second compensating unit and the 3rd compensating unit access the reactive-load compensation number of elements of described network system, thus realizing regulating network system reactive power to account for the ratio of apparent energy, and then realize the purpose being automatically adjusted of power factor in described network system, from frequently regulating the reactive-load compensation number of elements accessed network system without staff, greatly reduce the labor intensity of staff。
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided。
The structural representation of a kind of network system that the embodiment that Fig. 1 is the application provides。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
The embodiment of the present application provides a kind of network system, as it is shown in figure 1, include: feeder ear 100, electricity consumption end 300, control end 400 and transport module 200；Wherein,
Described feeder ear 100 includes multiple generating equipment, and described feeder ear has the first compensating unit A10；
Described transport module 200 transmits to described electricity consumption end 300 for the electric energy produced by described feeder ear 100, and described transport module 200 has the second compensating unit A20；
Described electricity consumption end 300 has the 3rd compensating unit A30, described first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 all includes multiple reactive-load compensation element；
Described control end 400 is for obtaining the power factor in described network system, and the first compensating unit A10, the second compensating unit A20 and the 3rd compensating unit A30 access the reactive-load compensation number of elements of described network system according to described power factor controlling。
On the basis of above-described embodiment, in an embodiment of the application, described control end 400 includes: acquiring unit and judging unit, wherein,
Described acquiring unit is for obtaining the power factor in described network system；
Described judging unit accesses the quantity of the reactive-load compensation element in described network system for the first compensating unit A10 according to described power factor controlling, the second compensating unit A20 and the three compensating unit A30。
It should be noted that the power of network system output mainly includes two parts, a part is active power, and it directly consumes electric energy, converts electrical energy into mechanical energy, heat energy, chemical energy or acoustic energy, utilizes these energy to do work, and this Partial Power is called active power；Another part is reactive power, it does not consume electric energy, simply convert electrical energy into another form of energy, the necessary requirement that this energy can do work as electrical equipment, further, this portion of energy periodically switches with electric energy in electrical network, and this Partial Power is referred to as reactive power, such as electromagnetic component sets up the power that magnetic field takies, and the power etc. shared by electric field set up by capacitor is all reactive power。
The specific implementation of the reactive power compensation of main flow is for having capacitive power loading device and inductive loading device and being connected in same circuit, and energy is phase interchangeable between two kinds of loading device。So, the reactive power compensation that the reactive power required for inductive load device can be exported by capacitive load device, account for the ratio of apparent energy realizing reducing reactive power in network system, thus realizing the raising of the power factor of network system。In the present embodiment, the power factor of described network system is detected by described control end 400, according to described power factor controlling, the first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 access the quantity of the reactive-load compensation element in described network system, being automatically adjusted the power factor in this network system can be realized, make the power factor in this network system be maintained within a stable and satisfied scope required。
Also, it should be noted the mode that described acquiring unit can pass through to be wirelessly transferred obtains described power factor from the control centre of network system, it is also possible to the phase difference calculating of voltage and electric current by obtaining alternating current in network system obtains described power factor。The concrete grammar that described acquiring unit is obtained described power factor by the application does not limit, specifically depending on practical situation。
Described network system is carried out reactive-load compensation and is possible not only to provide the power factor of network system, it is also possible to reduce the design capacity of network system power supply unit, reduce investment。Such as when power factor is increased to 0.95 by 0.8, dress 1Kvar capacitor can save place capacity 0.52KW。Further, described network system being carried out reactive-load compensation and can reduce line loss, thus reducing the invalid loss of supplier of electricity, improving the economic benefit of supplier of electricity。
On the basis of above-described embodiment, in an embodiment of the application, described reactive-load compensation element is Capacitor banks。
It should be noted that in the present embodiment, each Capacitor banks includes multiple electric capacity。In an embodiment of the application, the span of the electric capacity quantity that each Capacitor banks includes is 1-30, including endpoint value。But in other embodiments of the application, the value of the electric capacity quantity that each Capacitor banks includes is 20。The electric capacity quantity that described Capacitor banks is included by the application does not limit, specifically depending on practical situation。
On the basis of above-described embodiment, in another embodiment of the application, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element in parallel of the first predetermined number in described first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 is accessed in described network system。
It should be noted that in an embodiment of the application, the span of described first preset value is 0.8-0.9, including endpoint value。But in other embodiments of the application, the span of described first preset value can also be 0.5-0.95, including endpoint value。Concrete value and the span of described first preset value are not limited by the application, specifically depending on practical situation。
In an embodiment of the application, the span of described first predetermined number is 1-10, including endpoint value。But in other embodiments of the application, the span of described first predetermined number is 1-20, concrete value and the span of described first predetermined number are not limited by the application, specifically depending on practical situation。
Also, it should be noted in an embodiment of the application, the span of the quantity of the reactive-load compensation element in described first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 is 1-50, including endpoint value。But the concrete value of the quantity of the reactive-load compensation element in described first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 is not limited by the application, specifically depending on practical situation。
On the basis of above-described embodiment, in another embodiment of the application, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then by described first compensating unit A10, in second compensating unit A20 and the three compensating unit A30, the reactive-load compensation element in parallel of the first predetermined number accesses in described regional power grid, and when described power factor is less than the second preset value, by described first compensating unit A10, in second compensating unit A20 and the three compensating unit A30, the reactive-load compensation element in parallel of the second predetermined number accesses in described regional power grid。
It should be noted that in an embodiment of the application, the span of described second preset value is 0.75-0.85, including endpoint value；But in other embodiments of the application, the span of described second preset value is 0.45-0.8, including endpoint value。Concrete value and the span of described second preset value are not limited by the application, if less than described first preset value, specifically depending on practical situation。
Also, it should be noted in an embodiment of the application, the span of described second predetermined number is 10-30, including endpoint value。In another embodiment of the application, the span of described second predetermined number is 20-50, including endpoint value。The concrete value of described second predetermined number is not limited by the application, specifically depending on practical situation。
On the basis of above-described embodiment, in another embodiment of the application, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element series connection of the first predetermined number in described first compensating unit A10, the second compensating unit A20 and the three compensating unit A30 is accessed in described regional power grid。
On the basis of above-described embodiment, in the further embodiment of the application, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then by described first compensating unit A10, in second compensating unit A20 and the three compensating unit A30, the reactive-load compensation element series connection of the first predetermined number accesses in described regional power grid, and when described power factor is less than the second preset value, by described first compensating unit A10, in second compensating unit A20 and the three compensating unit A30, the reactive-load compensation element series connection of the second predetermined number accesses in described regional power grid。
It should be noted that the form that described reactive-load compensation element is accessed in described regional power grid by the application does not limit, specifically depending on practical situation。
In sum, the embodiment of the present application provides a kind of network system, described network system obtains the power factor in network system by controlling end 400, and according to described power factor controlling the first compensating unit A10, second compensating unit A20 and the 3rd compensating unit A30 accesses the reactive-load compensation number of elements of described network system, thus realizing regulating network system reactive power to account for the ratio of apparent energy, and then realize the purpose being automatically adjusted of power factor in described network system, from frequently regulating the reactive-load compensation number of elements accessed network system without staff, greatly reduce the labor intensity of staff。
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to。
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention。The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments。Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty。
Claims (10)
1. a network system, it is characterised in that including: feeder ear, electricity consumption end, control end and transport module；Wherein,
Described feeder ear includes multiple generating equipment, and described feeder ear has the first compensating unit；
The electric energy that described transport module is used for producing described feeder ear is to described electricity consumption end transmission, and described transport module has the second compensating unit；
Described electricity consumption end has the 3rd compensating unit, and described first compensating unit, the second compensating unit and the 3rd compensating unit all include multiple reactive-load compensation element；
Described control end is for obtaining the power factor in described network system, and the first compensating unit, the second compensating unit and the 3rd compensating unit access the reactive-load compensation number of elements of described network system according to described power factor controlling。
2. network system according to claim 1, it is characterised in that described control end includes: acquiring unit and judging unit, wherein,
Described acquiring unit is for obtaining the power factor in described network system；
Described judging unit is for the quantity of the reactive-load compensation element in the first compensating unit according to described power factor controlling, the second compensating unit and the 3rd compensating unit described network system of access。
3. network system according to claim 2, it is characterized in that, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element in parallel of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
4. network system according to claim 3, it is characterized in that, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then the reactive-load compensation element in parallel of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system, and when described power factor is less than the second preset value, the reactive-load compensation element in parallel of the second predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
5. network system according to claim 2, it is characterized in that, described judging unit is used for judging that whether described power factor is less than the first preset value, if it is, the reactive-load compensation element series connection of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
6. network system according to claim 5, it is characterized in that, described judging unit is used for judging that whether described power factor is less than the first preset value, if, then the reactive-load compensation element series connection of the first predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system, and when described power factor is less than the second preset value, the reactive-load compensation element series connection of the second predetermined number in described first compensating unit, the second compensating unit and the 3rd compensating unit is accessed in described network system。
7. the network system according to any one of claim 3-6, it is characterised in that the span of described first preset value is 0.8-0.9, including endpoint value。
8. the network system according to any one of claim 3-6, it is characterised in that the span of described second preset value is 0.75-0.85, including endpoint value。
9. the network system according to any one of claim 1-6, it is characterised in that described reactive-load compensation element is Capacitor banks。
10. the network system according to any one of claim 1-6, it is characterised in that in described first compensating unit, the second compensating unit and the 3rd compensating unit, the span of the quantity of reactive-load compensation element is 1-50, including endpoint value。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187353.6A CN105703379A (en) | 2016-03-29 | 2016-03-29 | Power grid system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610187353.6A CN105703379A (en) | 2016-03-29 | 2016-03-29 | Power grid system |
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| CN105703379A true CN105703379A (en) | 2016-06-22 |
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| CN201341085Y (en) * | 2008-10-06 | 2009-11-04 | 四川英杰电气有限公司 | Multifunctional power supply cabinet |
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Application publication date: 20160622 |