CN205377295U - Electric wire netting reactive power control system - Google Patents
Electric wire netting reactive power control system Download PDFInfo
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- CN205377295U CN205377295U CN201620100110.XU CN201620100110U CN205377295U CN 205377295 U CN205377295 U CN 205377295U CN 201620100110 U CN201620100110 U CN 201620100110U CN 205377295 U CN205377295 U CN 205377295U
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- 238000000034 method Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010003830 Automatism Diseases 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000009394 selective breeding Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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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
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Abstract
The utility model provides an electric wire netting reactive power control system, include: automatic voltage control system for gather the female line number certificate of electric wire netting, and according to female line number is according to calculating the idle demand of electric wire netting generating line, magnetic control reactor controller, with automatic voltage control headtotail is used for receiving the idle demand of electric wire netting generating line, and according to the idle demand of electric wire netting generating line generates pulse control signal, valve block and magnetic control reactor, the valve block with magnetic control reactor controller is connected, the valve block is used for receiving pulse control signal, and according to pulse control signal is right the magnetic control reactor moves the looks trigger control in order to change magnetic control reactor capacity, the magnetic control reactor is according to capacity output reactive power to the electric wire netting after changing.
Description
Technical field
This utility model relates to intelligent grid reactive-load compensation field, is specifically related to power system reactive power and controls system.
Background technology
Automatism voltage control (AutomaticVoltageControl, AVC) system is for ensureing the quality of power supply, improves power transmission efficiency, reduces network loss, it is achieved the system of stable operation and economical operation.AVC system is located at power plant, each node (transformer station at different levels) remote measurement is gathered by dispatch automated system, the real time datas such as remote signalling carry out on-line analysis and calculating, qualified with each node voltage, critical point power factor is constraints, carry out on-Line Voltage Reactive power control, realize main transformer shunting switch and regulate least number of times, capacitor switching is the most reasonable, generator reactive is exerted oneself optimum, the complex optimum target that rate of qualified voltage is the highest and power transmission network loss rate is minimum, ultimately form control instruction, automatically performed by dispatch automated system, realize voltage and reactive power optimization automated closed-loop to control.
Magnet controlled reactor (MagneticallyControlledReactors, MCR) full name is magnetic valve type controllable reactor, is a kind of adjustable shunt reactor of capacity, is mainly used in the reactive-load compensation of power system.At present, load-center substation mostly can install MCR on the basis of existing reactive compensation system additional and control system, this system includes magnet controlled reactor 11 as shown in Figure 1, valve block 12 and magnet controlled reactor controller 13, magnet controlled reactor controller 13 therein can gather the on-site busbar voltage of transformer station, the parameters such as electric current, and calculate the reactive power needing to inject electrical network under conditions present, then pulse control signal is sent to valve block 12, the output size of control inductive reactive power is carried out by regulating the degree of saturation of magnet controlled reactor iron core, the smooth closed loop realizing electric network reactive-load regulates.
Consequently, it is possible to existed for intelligent AVC system and the system of MCR two kinds of automated closed-loops adjustments of control system in electrical network, and two systems do not have dividing of primary and secondary, it is easy to cause the situation that Reactive-power control is chaotic, reduce the idle efficiency controlling and operating.
Utility model content
Therefore, to be solved in the utility model be existing electric network reactive-load control system adjustment operation easily cause problem chaotic, inefficient.
In view of this, this utility model also provides for a kind of power system reactive power and controls system, including: automatic voltage control system, it is used for gathering electrical network bus data, and calculates electrical network bus reactive requirement amount according to described bus data；Magnet controlled reactor controller, is connected with described automatic voltage control system, is used for receiving described electrical network bus reactive requirement amount, and generates pulse control signal according to described electrical network bus reactive requirement amount；Valve block and magnet controlled reactor, described valve block is connected with described magnet controlled reactor controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described magnet controlled reactor being carried out phase-shifting trigger control to change described magnet controlled reactor capacity, described magnet controlled reactor is according to the volume output reactive power after changing to electrical network.
Preferably, described magnet controlled reactor controller is additionally operable to after described magnet controlled reactor is according to the volume output reactive power after changing to electrical network, gather local bus data, calculate electrical network bus reactive requirement amount according to described local bus data, and send the electrical network bus reactive requirement amount calculated to described automatic voltage control system.
This utility model also provides for another kind of power system reactive power and controls system, including: automatic voltage control system, it is used for gathering electrical network bus data, and calculates the first bus reactive requirement amount according to described bus data；Magnet controlled reactor controller, it is connected with described automatic voltage control system, for receiving described first bus reactive requirement amount, it is additionally operable to gather local bus data, the second bus reactive requirement amount is calculated according to described local bus data, it is additionally operable to receive the control instruction of user's input, generates pulse control signal according in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction；Valve block and magnet controlled reactor, described valve block is connected with described magnet controlled reactor controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described magnet controlled reactor being carried out phase-shifting trigger control to change described magnet controlled reactor capacity, described magnet controlled reactor is according to the volume output reactive power after changing to sub-electrical network.
Preferably, described magnet controlled reactor controller is additionally operable to after described magnet controlled reactor is according to the volume output reactive power after changing to electrical network, gather local bus data, calculate electrical network bus reactive requirement amount according to described local bus data, and send the electrical network bus reactive requirement amount calculated to described automatic voltage control system.
Preferably, described magnet controlled reactor controller is for receiving the control model instruction of user's input, and determines according to a generation pulse control signal in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction according to described control model instruction.
Technical solutions of the utility model, have the advantage that
The first powerless control system that this utility model provides utilizes AVC system-computed electric network reactive-load demand, the electric network reactive-load demand sent according to AVC system by MCR controller, adjust MCR output to the reactive power of electrical network with pulse control signal, finally realize the smooth adjustment to reactive power.Due to the reactive requirement amount that the parameter that this bus reactive requirement amount is the whole network that AVC system gathers according to self calculates, the reactive requirement amount that the electrical network parameter of himself infield calculates only is gathered compared to MCR controller, the reactive requirement amount that AVC system-computed goes out is more comprehensively, accurately, therefore make MCR output more accurate to the reactive power of electrical network, thus can improve the control efficiency of power system reactive power.
The second powerless control system that this utility model provides provides three kinds of idle control models simultaneously, may select different control models for different situations and carries out idle control, and program motility is stronger, it is possible to improve the idle efficiency controlling operation.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, 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 these accompanying drawings.
Fig. 1 is the existing MCR structural representation controlling system；
The flow chart of the power system reactive power control method that Fig. 2 provides for this utility model embodiment；
Fig. 3 controls the structural representation of system for the power system reactive power that this utility model embodiment provides；
Fig. 4 controls the structural representation of device for the power system reactive power that this utility model embodiment provides.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, 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 this utility model protection.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is also possible to be the connection of two element internals, it is possible to be wireless connections, it is also possible to be wired connection.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitute conflict each other.
Embodiment 1
This utility model embodiment provides a kind of power system reactive power control method, and the magnet controlled reactor controller 13 in the method system as shown in Figure 1 performs, and the method includes as shown in Figure 2:
S1, obtain the electrical network bus reactive requirement amount that AVC system sends, wherein electrical network bus reactive requirement amount is that AVC system passes through real-time bus data such as gathering the busbar voltage of the whole network, bus is idle, is doped the bus reactive power needing to inject electrical network under target setting magnitude of voltage by special algorithm.Time actually used, it is possible to be connected with AVC system by MCR controller, AVC system send reactive requirement amount from trend MCR controller.
S2, generates pulse control signal according to described bus reactive requirement amount, and namely the parameter such as the frequency of this control signal, electric current, voltage is calculated according to bus reactive requirement gauge, for instance when reactive requirement amount is bigger, the intensity of this signal increases therewith.It will be understood by those skilled in the art that the specific algorithm according to bus reactive requirement amount generation pulse control signal has multiple, it is all feasible for utilizing existing algorithm；
S3, sending pulse control signal to the valve block of MCR, valve block receives different pulse signals, and MCR is carried out phase-shifting trigger control, namely the output size of control inductive reactive power is carried out by regulating the degree of saturation of magnet controlled reactor iron core, it is achieved the smooth adjustment of electric network reactive-load.
This programme makes the electrical network bus reactive requirement amount that MCR controller can send according to AVC system, adjusts the MCR output reactive power to electrical network with pulse control signal, to realize the smooth adjustment to reactive power.Due to the reactive requirement amount that the parameter that this bus reactive requirement amount is the whole network that AVC system gathers according to self calculates, the reactive requirement amount that the electrical network parameter of himself infield calculates only is gathered compared to MCR controller, the reactive requirement amount that AVC system-computed goes out is more comprehensively, accurately, therefore make MCR output more accurate to the reactive power of electrical network, thus can improve the control efficiency of power system reactive power.
Further, after above-mentioned steps S3, this method can also comprise the steps:
S4, obtains local bus data, and namely MCR gathers the electrical network parameter of himself infield, for instance busbar voltage, bus current etc.；
S5, bus reactive requirement amount is calculated according to described local bus data, the reactive requirement amount herein calculated is MCR when not adopting the sent out data of AVC system, self dopes the bus reactive power needing to inject electrical network under target setting magnitude of voltage according to local parameter by special algorithm, owing to the acquisition channel of parameter is different, the reactive requirement amount that this step calculates is usually different from the reactive requirement amount of AVC system-computed；
S6, the bus reactive requirement amount calculated is sent to AVC system, this step is actually a kind of feedback operation, namely to AVC system feedback reactive requirement amount after idle adjustment, AVC system can using these data as the foundation calculating reactive requirement amount next time afterwards, if it is idle to remain a need for input, then returns step S1 and carry out idle control operation next time.
Above-mentioned preferred version is gathered local power grid parameter by MCR controller, and calculate reactive requirement amount according to its parameter collected, finally feed back to AVC system, thus make AVC system can adopt the on-site concrete condition of MCR controller, and then the calculating process of the reactive requirement amount of the whole network is optimized, improve idle control efficiency further.
Embodiment 2
This utility model embodiment provides a kind of power system reactive power to control system, as it is shown on figure 3, this system includes:
AVC system 31, is used for gathering electrical network bus data, and calculates electrical network bus reactive requirement amount according to described bus data, and AVC system can collect the parameter of each node (transformer station at different levels) the reactive requirement amount calculating the whole network according to each node；
MCR controller 32, is connected with described AVC system, is used for receiving described electrical network bus reactive requirement amount, and generates pulse control signal according to described electrical network bus reactive requirement amount；
Valve block 33 and MCR34, described valve block is connected with described MCR controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described MCR being carried out phase-shifting trigger control to change described MCR capacity, described MCR is according to the volume output reactive power after changing to electrical network.
Such scheme utilizes AVC system-computed electric network reactive-load demand, MCR controller the electric network reactive-load demand sent according to AVC system, adjusts MCR output to the reactive power of electrical network with pulse control signal, finally realizes the smooth adjustment to reactive power.Due to the reactive requirement amount that the parameter that this bus reactive requirement amount is the whole network that AVC system gathers according to self calculates, the reactive requirement amount that the electrical network parameter of himself infield calculates only is gathered compared to MCR controller, the reactive requirement amount that AVC system-computed goes out is more comprehensively, accurately, therefore make MCR output more accurate to the reactive power of electrical network, thus can improve the control efficiency of power system reactive power.
Further, MCR controller 32 can also after MCR be according to the volume output reactive power after changing to electrical network, gather local bus data, calculate electrical network bus reactive requirement amount according to described local bus data, and send the electrical network bus reactive requirement amount calculated to described AVC system 31.
Above-mentioned preferred version is by gathering local power grid parameter, and calculate reactive requirement amount according to its parameter collected, finally feed back to AVC system, thus make AVC system can adopt the on-site concrete condition of MCR controller, and then the calculating process of the reactive requirement amount of the whole network is optimized, further increase idle control efficiency.
Embodiment 3
This utility model embodiment provides another kind of power system reactive power to control system, is different in that with previous embodiment, and the MCR controller in the present embodiment can also carry out local closed loop control and Non-follow control, and this system includes as shown in Figure 3:
AVC system 31, is used for gathering electrical network bus data, and calculates the first bus reactive requirement amount, the reactive requirement amount namely calculated according to network wide parameters according to described bus data；
MCR controller 32, it is connected with described AVC system, for receiving described first bus reactive requirement amount, it is additionally operable to gather local bus data, the second bus reactive requirement amount (according to the reactive requirement amount that local parameter calculates) is calculated according to described local bus data, it is additionally operable to receive the control instruction of user's input, generates pulse control signal according in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction.MCR controller according to predetermined control strategy or artificial mode selecting operation, can utilize one of above-mentioned first bus reactive requirement amount, the second bus reactive requirement amount and control instruction to generate pulse control signal.
Valve block 33 and MCR34, described valve block is connected with described MCR controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described MCR being carried out phase-shifting trigger control to change described MCR capacity, described MCR is according to the volume output reactive power after changing to sub-electrical network.
Such scheme provides three kinds of idle control models simultaneously, may select different control models for different situations and carries out idle control, and program motility is stronger, it is possible to improve the idle efficiency controlling operation.
Preferably, MCR controller 32 is additionally operable to, after described MCR is according to the volume output reactive power after changing to electrical network, send described second bus reactive requirement amount to described AVC system 31.
Above-mentioned preferred version is gathered local power grid parameter by MCR controller, and calculate reactive requirement amount according to its parameter collected, finally feed back to AVC system, thus make AVC system can adopt the on-site concrete condition of MCR controller, and then the calculating process of the reactive requirement amount of the whole network is optimized, improve idle control efficiency further.
As one preferred embodiment, above-mentioned MCR controller 32 is for receiving the control model instruction of user's input, and determines according to a generation pulse control signal in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction according to described control model instruction.Specifically, 3 kinds of control models are determined in the acceptable 3 kinds of control model instructions of MCR controller, and respectively MCR carries out idle control according to the data that AVC system provides, MCR carries out local closed loop control, manual open-loop controls.
Above-mentioned preferred version can receive artificial selection operation, according to selecting operation to enable different control models, meets the various requirement that intelligent grid runs, and improves the idle efficiency controlling operation further.
Embodiment 4
The present embodiment provides a kind of power system reactive power corresponding with embodiment 1 to control device, including:
Acquiring unit 41, for obtaining the bus reactive requirement amount that AVC system sends；
Generate unit 42, for generating pulse control signal according to described bus reactive requirement amount；
Transmitting element 43, for sending described pulse control signal to the valve block of MCR.
This programme makes the electrical network bus reactive requirement amount that MCR controller can send according to AVC system, adjusts the MCR output reactive power to electrical network with pulse control signal, to realize the smooth adjustment to reactive power.Due to the reactive requirement amount that the parameter that this bus reactive requirement amount is the whole network that AVC system gathers according to self calculates, the reactive requirement amount that the electrical network parameter of himself infield calculates only is gathered compared to MCR controller, the reactive requirement amount that AVC system-computed goes out is more comprehensively, accurately, therefore make MCR output more accurate to the reactive power of electrical network, thus can improve the control efficiency of power system reactive power.
Preferably, said apparatus also includes:
Local data acquiring unit 44, after sending described pulse control signal at described transmitting element to the valve block of described MCR, obtains local bus data；
Computing unit 45, for calculating bus reactive requirement amount according to described local bus data；
Feedback unit 46, for sending the bus reactive requirement amount calculated to described AVC system.
Above-mentioned preferred version is by gathering local power grid parameter, and calculate reactive requirement amount according to its parameter collected, finally feed back to AVC system, thus make AVC system can adopt the on-site concrete condition of MCR controller, and then the calculating process of the reactive requirement amount of the whole network is optimized, further increase idle control efficiency.
Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change thus extended out or variation still in this utility model create protection domain among.
Claims (5)
1. a power system reactive power controls system, it is characterised in that including:
Automatic voltage control system, is used for gathering electrical network bus data, and calculates electrical network bus reactive requirement amount according to described bus data；
Magnet controlled reactor controller, is connected with described automatic voltage control system, is used for receiving described electrical network bus reactive requirement amount, and generates pulse control signal according to described electrical network bus reactive requirement amount；
Valve block and magnet controlled reactor, described valve block is connected with described magnet controlled reactor controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described magnet controlled reactor being carried out phase-shifting trigger control to change described magnet controlled reactor capacity, described magnet controlled reactor is according to the volume output reactive power after changing to electrical network.
2. system according to claim 1, it is characterized in that, described magnet controlled reactor controller is additionally operable to after described magnet controlled reactor is according to the volume output reactive power after changing to electrical network, gather local bus data, calculate electrical network bus reactive requirement amount according to described local bus data, and send the electrical network bus reactive requirement amount calculated to described automatic voltage control system.
3. a power system reactive power controls system, it is characterised in that including:
Automatic voltage control system, is used for gathering electrical network bus data, and calculates the first bus reactive requirement amount according to described bus data；
Magnet controlled reactor controller, it is connected with described automatic voltage control system, for receiving described first bus reactive requirement amount, it is additionally operable to gather local bus data, the second bus reactive requirement amount is calculated according to described local bus data, it is additionally operable to receive the control instruction of user's input, generates pulse control signal according in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction；
Valve block and magnet controlled reactor, described valve block is connected with described magnet controlled reactor controller, described valve block is used for receiving described pulse control signal, and according to described pulse control signal, described magnet controlled reactor being carried out phase-shifting trigger control to change described magnet controlled reactor capacity, described magnet controlled reactor is according to the volume output reactive power after changing to sub-electrical network.
4. system according to claim 3, it is characterized in that, described magnet controlled reactor controller is additionally operable to after described magnet controlled reactor is according to the volume output reactive power after changing to electrical network, gather local bus data, calculate electrical network bus reactive requirement amount according to described local bus data, and send the electrical network bus reactive requirement amount calculated to described automatic voltage control system.
5. the system according to claim 3 or 4, it is characterized in that, described magnet controlled reactor controller is for receiving the control model instruction of user's input, and determines according to a generation pulse control signal in described first bus reactive requirement amount, the second bus reactive requirement amount and control instruction according to described control model instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620100110.XU CN205377295U (en) | 2016-01-29 | 2016-01-29 | Electric wire netting reactive power control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620100110.XU CN205377295U (en) | 2016-01-29 | 2016-01-29 | Electric wire netting reactive power control system |
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| CN205377295U true CN205377295U (en) | 2016-07-06 |
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| CN201620100110.XU Withdrawn - After Issue CN205377295U (en) | 2016-01-29 | 2016-01-29 | Electric wire netting reactive power control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529722A (en) * | 2016-01-29 | 2016-04-27 | 国网山东省电力公司青岛供电公司 | Reactive power control method, device and system for power grid |
| CN106786811A (en) * | 2016-12-23 | 2017-05-31 | 安徽立卓智能电网科技有限公司 | A kind of computational methods of thermal power plant's automatic voltage control system pulse width coefficient |
-
2016
- 2016-01-29 CN CN201620100110.XU patent/CN205377295U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529722A (en) * | 2016-01-29 | 2016-04-27 | 国网山东省电力公司青岛供电公司 | Reactive power control method, device and system for power grid |
| CN105529722B (en) * | 2016-01-29 | 2018-11-02 | 国网山东省电力公司青岛供电公司 | A kind of power system reactive power control method, apparatus and system |
| CN106786811A (en) * | 2016-12-23 | 2017-05-31 | 安徽立卓智能电网科技有限公司 | A kind of computational methods of thermal power plant's automatic voltage control system pulse width coefficient |
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