CN105356478A - Power supply system having reactive compensation function - Google Patents
Power supply system having reactive compensation function Download PDFInfo
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- CN105356478A CN105356478A CN201510926627.4A CN201510926627A CN105356478A CN 105356478 A CN105356478 A CN 105356478A CN 201510926627 A CN201510926627 A CN 201510926627A CN 105356478 A CN105356478 A CN 105356478A
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- Prior art keywords
- reactive
- power
- compensation
- reactive compensation
- station
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention provides a power supply system having a reactive compensation function. The system adopts a multi-stage joint debugging mode to achieve reactive compensation, and can meet control requirements of various load characteristics of a 110kV-95kV transformer station; and different reactive compensation devices can be configured according to user actual requirements aiming at user side load conditions. In the power supply system, a compensation quantity can be continuously adjusted through an advanced automatic reactive compensation technology; in the reactive compensation devices, the service lives of capacitors are long, and the utilization rate of equipment is high; protection functions are complete, and the intelligent degree is high; and the power supply system has a wired communication mode, a local area network communication mode, a GPRS antenna communication mode, an optical fiber communication mode and other communication modes, and has a wired data transmission mode, a local area network data transmission mode, a GPRS antenna data transmission mode, an optical fiber data transmission mode and other data transmission modes.
Description
Technical field
The present invention relates to power transmission technology field, more specifically, relate to a kind of electric power system with no-power compensation function.
Background technology
Along with the fast development of China's rural economy and the speed-raising of new countryside construction, in man of peasant household, electrical equipment kind gets more and more, some of them electrical equipment, comprise fluorescent lamp, carry out work according to electromagnetic induction principle, just need consume reactive power to set up magnetic field, in addition, the powerful device such as asynchronous motor, A.C. welder can be used in township enterprise, also be the electromagnetic induction principle utilized, therefore also want consume reactive power.
Therefore, not only to comprise active power in the electrical power transmission system of rural power grids, also will comprise reactive power.But there is negative effect in the transmission of reactive power: the increase of reactive power can cause the loss of voltage of transmission line to increase.Reactive power can cause the existence of user side low-voltage problem, affects the normal electricity consumption of user side.
Summary of the invention
The invention provides a kind of electric power system with no-power compensation function, can supplement by idle the problem avoiding low-voltage, ensure the normal electricity consumption of user side.
In order to reach above-mentioned technical purpose, technical scheme of the present invention is as follows:
There is an electric power system for no-power compensation function, comprising: scheduling station, plant stand, transmission line, first concentrate reactive power compensator, second to concentrate reactive power compensator and power distribution station;
Described transmission line comprises: connect the first transmission line between described scheduling station with described plant stand and be connected the second transmission line of described plant stand and described power distribution station;
Described first concentrates reactive power compensator to be connected with described scheduling station;
Described second concentrates reactive power compensator to be connected with described plant stand.
Further, also comprise: the first Reactive Compensation of Distribution Lines device be connected with described first transmission line; The the second Reactive Compensation of Distribution Lines device be connected with described second transmission line.
Further, described first Reactive Compensation of Distribution Lines device and described second Reactive Compensation of Distribution Lines device are used for carrying out 10KV Reactive Compensation of Distribution Lines.
Further, described first Reactive Compensation of Distribution Lines device and described second Reactive Compensation of Distribution Lines device are voltage-regulation type reactive power automatic compensation device.
Further, also comprise: the low-pressure side reactive power compensator be connected with described power distribution station.
Further, described low-pressure side reactive power compensator is used for carrying out the reactive power compensation of 0.4KV low-pressure side.
Further, also comprise: telecontrol communication machine and reactive compensation cabinet;
Described scheduling station and described plant stand carry out data interaction by described telecontrol communication machine; Described reactive compensation cabinet is arranged on described scheduling station, concentrates reactive power compensator and described second to concentrate the running parameter of reactive power compensator for arranging described first.
Further, described scheduling station comprises: main control server, and described main control server has electric energy quality for substation online monitoring system, for detecting the quality of power supply of described scheduling station and described plant stand.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
The present invention adopts multistage uniting and adjustment mode to realize reactive power compensation, can meet the control overflow of all kinds of part throttle characteristics of 110kV-35kV transformer station; According to user's actual needs, for user side load condition, different reactive power compensators can be configured.This electric power system passes through advanced auto-reactive compensation technology, compensation rate continuously adjustabe; Can make in reactive power compensator, capacitor long service life, utilization rate of equipment and installations is high; Defencive function is perfect, and intelligence degree is high; Possess wired, communication and the data-transmission mode such as local area network (LAN), GPRS are wireless, optical fiber.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The structural representation of the another kind of electric power system that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
With reference to figure 1, a kind of structural representation with the electric power system of no-power compensation function that Fig. 1 provides for the embodiment of the present application, this electric power system comprises: scheduling station 11, plant stand 12, transmission line 14, first concentrate reactive power compensator 15, second to concentrate reactive power compensator 16 and power distribution station 13.
Described transmission line 14 comprises: connect the first transmission line 141 between described scheduling station 11 with described plant stand 12 and be connected the second transmission line 142 of described plant stand 12 and described power distribution station 13.Scheduling station 11 is transmitted electricity to plant stand 12 by the first transmission line 141.Plant stand 12 is transmitted electricity to power distribution station 13 by the second transmission line 142, and corresponding transformer is passed through to customer power supply in power distribution station 13.
Can comprise multiple plant stand 12 in described electric power system, each plant stand 12 can arrange multiple power distribution station 13.In FIG, illustrate only a plant stand 12 and a power distribution station 13.Plant stand 12 and give plant stand 12 connect power distribution station 13 number can according to for number and power load setting.
Described first concentrates reactive power compensator 15 to be connected with described scheduling station 11.Described second concentrates reactive power compensator 16 to be connected with described plant stand 12.Described first concentrates reactive power compensator 15 to carry out reactive power compensation for the voltage exported to plant stand 12 scheduling station 11.Described second concentrates reactive power compensator 16 to carry out reactive power compensation for the voltage exported to power distribution station 13 station 12, to ensure the voltage stabilization of electric power system.
Visible, electric power system described in the embodiment of the present application is provided with first at scheduling station 11 and concentrates reactive power compensator 15, be provided for the stable of the voltage of scheduling station 11 end, plant stand 12 is provided with second and concentrates reactive power compensator 16, be provided for the stable of the voltage of plant stand 12 end, to substantially reduce in electric power system due to the low-voltage problem that reactive power causes, ensure that the stable of electric power system voltage.
With reference to the structural representation of the another kind of electric power system that figure 2, Fig. 2 provides for the embodiment of the present application, Fig. 2 illustrated embodiment comprises further in Fig. 1 illustrated embodiment: the first Reactive Compensation of Distribution Lines device 21 be connected with described first transmission line 141; The the second Reactive Compensation of Distribution Lines device 22 be connected with described second transmission line 142.
Described first Reactive Compensation of Distribution Lines device 21 and described second Reactive Compensation of Distribution Lines device 22 are for carrying out 10KV Reactive Compensation of Distribution Lines.Described first Reactive Compensation of Distribution Lines device 21 is voltage-regulation type reactive power automatic compensation device with described second Reactive Compensation of Distribution Lines device 22.
Voltage-regulation type tune reactive power automatic compensation device is the terminal voltage in regulating capacitor group, square principle be directly proportional of idle and its terminal voltage exported in reactive power compensation is to realize reactive power compensation, that is: which is adjusted idle, offset phases is many, compensate meticulous, when the voltage regulation limits of voltage regulator be 0.6UCN ~ UCN voltage regulator gear is 9 grades, corresponding Capacitor banks output capacity scope is at 0.36QC--QC.Voltage-regulation type adjusts reactive power automatic compensation device to adopt autocoupling type Loading voltage regulator, the not power-off of Reactive-power control process capacitor, without overvoltage with shove, the electric capacity life-span is long, and the complete sets of equipment reliability is high; Be applicable to newly-built or transformation 110-35kV transformer station imaginary power automatic compensation, during old Transfomer Substation Reconstruction, the legacy equipments such as original TBB, VQC still can Modification and reutilization.Adopt in Fig. 2 illustrated embodiment, also comprise: the low-pressure side reactive power compensator 23 be connected with described power distribution station 13.A corresponding low-pressure side reactive power compensator 23 in power distribution station.Described low-pressure side reactive power compensator is used for carrying out the reactive power compensation of 0.4KV low-pressure side.0.4kV side load intensive or the long situation of circuit are the basic places of rural area " low-voltage " problem.0.4kV power distribution network is mainly rural subscribers' life lighting, field irrigation, agricultural byproducts processing and township industry etc. and provides electric energy, its direct user oriented, often by the impact of the conditions such as local climate, landform, power load, that in power network, problem is maximum, loss is maximum, more complicated in exploration and planning and designing, whether reasonably carry out planning and designing, have a direct impact the development of local economy and the regular maintenance of network and safe operation tool.Therefore, carry out reactive power compensation by the reactive power compensation of 0.4KV low-pressure side, the transformation of 0.4kV low-voltage network can be made will to accomplish thoroughly effective improvement.
Optionally, Fig. 2 illustrated embodiment also comprises: telecontrol communication machine and reactive compensation cabinet; Described scheduling station and described plant stand carry out data interaction by described telecontrol communication machine; Described reactive compensation cabinet is arranged on described scheduling station, concentrates reactive power compensator and described second to concentrate the running parameter of reactive power compensator for arranging described first.
Optionally, described reactive compensation cabinet may be used for carrying out setting parameter to all reactive power compensators of described electric power system, so that reasonable selection supply node compensation way at different levels and capacity, select appropriate compensation point to meet the compensation requirement of supply node at different levels.Supply node at different levels is followed successively by main website, the first transmission line, plant stand, the second transmission line and power distribution station.
In the exemplary embodiment illustrated in fig. 2, be respectively main website 11, plant stand 12, power distribution station 13 and transmission line 14 and be provided with reactive power compensator separately, in electric power system described in the embodiment of the present application, described scheduling station 11 comprises: main control server, described main control server has electric energy quality for substation online monitoring system, for detecting the quality of power supply of described scheduling station and described plant stand.Main control server is used for the unified reactive power compensation controlling supply node at different levels, realizes multistage uniting and adjustment and the on-line monitoring of reactive power compensation.
Described main control server comprises: electric energy quality for substation online monitoring system.This electric energy quality for substation online monitoring system is function and the comprehensive power quality collection monitoring system of one of collection intelligent electric meter, intelligent acquisition, two-way interactive, has the function of the equipment such as distribution transformer monitoring, multifunctional electric energy meter, harmonic meter, statistical voltmeter, reactive power compensation, teletransmission communication device.
This electric power system adopts multistage uniting and adjustment mode to realize reactive power compensation, can meet the control overflow of all kinds of part throttle characteristics of 110kV-35kV transformer station; According to user's actual needs, for user side load condition, different reactive power compensators can be configured.This electric power system passes through advanced auto-reactive compensation technology, compensation rate continuously adjustabe; Can make in reactive power compensator, capacitor long service life, utilization rate of equipment and installations is high; Defencive function is perfect, and intelligence degree is high; Possess wired, communication and the data-transmission mode such as local area network (LAN), GPRS are wireless, optical fiber.
Known by foregoing description, electric power system described in the embodiment of the present application can supplement by idle the problem avoiding low-voltage, ensures the normal electricity consumption of user side.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (8)
1. there is an electric power system for no-power compensation function, it is characterized in that, comprising: scheduling station, plant stand, transmission line, first concentrate reactive power compensator, second to concentrate reactive power compensator and power distribution station;
Described transmission line comprises: connect the first transmission line between described scheduling station with described plant stand and be connected the second transmission line of described plant stand and described power distribution station;
Described first concentrates reactive power compensator to be connected with described scheduling station;
Described second concentrates reactive power compensator to be connected with described plant stand.
2. the electric power system with no-power compensation function according to claim 1, is characterized in that, also comprise: the first Reactive Compensation of Distribution Lines device be connected with described first transmission line; The the second Reactive Compensation of Distribution Lines device be connected with described second transmission line.
3. the electric power system with no-power compensation function according to claim 2, is characterized in that, described first Reactive Compensation of Distribution Lines device and described second Reactive Compensation of Distribution Lines device are used for carrying out 10KV Reactive Compensation of Distribution Lines.
4. the electric power system with no-power compensation function according to claim 2, is characterized in that, described first Reactive Compensation of Distribution Lines device and described second Reactive Compensation of Distribution Lines device are voltage-regulation type reactive power automatic compensation device.
5. the electric power system with no-power compensation function according to claim 1, is characterized in that, also comprise: the low-pressure side reactive power compensator be connected with described power distribution station.
6. the electric power system with no-power compensation function according to claim 5, is characterized in that, described low-pressure side reactive power compensator is used for carrying out the reactive power compensation of 0.4KV low-pressure side.
7. the electric power system with no-power compensation function according to claim 1, is characterized in that, also comprise: telecontrol communication machine and reactive compensation cabinet;
Described scheduling station and described plant stand carry out data interaction by described telecontrol communication machine; Described reactive compensation cabinet is arranged on described scheduling station, concentrates reactive power compensator and described second to concentrate the running parameter of reactive power compensator for arranging described first.
8. the electric power system with no-power compensation function according to any one of claim 1-7, it is characterized in that, described scheduling station comprises: main control server, described main control server has electric energy quality for substation online monitoring system, for detecting the quality of power supply of described scheduling station and described plant stand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926627.4A CN105356478A (en) | 2015-12-11 | 2015-12-11 | Power supply system having reactive compensation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510926627.4A CN105356478A (en) | 2015-12-11 | 2015-12-11 | Power supply system having reactive compensation function |
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| CN105356478A true CN105356478A (en) | 2016-02-24 |
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| CN201510926627.4A Pending CN105356478A (en) | 2015-12-11 | 2015-12-11 | Power supply system having reactive compensation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079289A (en) * | 2020-08-21 | 2022-02-22 | 济南爱迪电气设备有限公司 | Regional distribution network multi-technology loss reduction energy-saving system |
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| CN105119295A (en) * | 2015-10-12 | 2015-12-02 | 国网浙江临海市供电公司 | Power supply system with reactive compensation function |
| CN205017011U (en) * | 2015-10-12 | 2016-02-03 | 国网浙江临海市供电公司 | Power supply system with reactive compensation function |
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- 2015-12-11 CN CN201510926627.4A patent/CN105356478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150214739A1 (en) * | 2012-09-20 | 2015-07-30 | Korea Electric Power Corporation | Device and method for cooperation control of ems and dms |
| CN103956750A (en) * | 2014-04-23 | 2014-07-30 | 国家电网公司 | Reactive power optimization system and method for control over voltage fluctuation in wind power centralized output mode |
| CN105119295A (en) * | 2015-10-12 | 2015-12-02 | 国网浙江临海市供电公司 | Power supply system with reactive compensation function |
| CN205017011U (en) * | 2015-10-12 | 2016-02-03 | 国网浙江临海市供电公司 | Power supply system with reactive compensation function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114079289A (en) * | 2020-08-21 | 2022-02-22 | 济南爱迪电气设备有限公司 | Regional distribution network multi-technology loss reduction energy-saving system |
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