CN109950913A - A kind of phase modifier emergency control method and its system - Google Patents
A kind of phase modifier emergency control method and its system Download PDFInfo
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- CN109950913A CN109950913A CN201910265444.0A CN201910265444A CN109950913A CN 109950913 A CN109950913 A CN 109950913A CN 201910265444 A CN201910265444 A CN 201910265444A CN 109950913 A CN109950913 A CN 109950913A
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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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- 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 invention discloses a kind of phase modifier emergency control method and its systems, steps are as follows: when low voltage crossing occurs for new energy unit, emergent control main website is sent by the low voltage crossing information being previously received, and obtains all phase modifier operation informations in the new energy station busbar voltage information and power grid of monitoring；According to low voltage crossing information, the new energy station busbar voltage information of acquisition and phase modifier operation information, corresponding emergent control measure is matched from preset control scheme list, is sent to phase modifier control sub-station；Send the instruction of modification excitation reference voltage and duration instruction to phase modifier excitation system, when the duration terminate or trigger excitation system it is underexcitation or cross encourage protection limitation when, excitation reference voltage is reverted into initial value, completion phase modifier emergent control.The present invention is effectively reduced extensive new energy unit and enters the chain high pressure off-grid risk of new energy caused by low voltage crossing state, is conducive to the chain power outage for defending the high accounting power grid of new energy.
Description
Technical field
The present invention relates to a kind of phase modifier emergency control method and its systems, belong to Power System and its Automation technology neck
Domain.
Background technique
Since generation of electricity by new energy is to access power grid by power electronic equipment interface, there is this with traditional synchronous generator
Matter is different.Such as when network voltage reduces, in order to protect itself element safe, new energy unit can enter low voltage crossing rank
Section, unit output is compared to decline to a great extent under normal condition.It, can be right for concentrating the generation of electricity by new energy base of access power grid on a large scale
The trend distribution of power grid causes tremendous influence, and generation of electricity by new energy base is sent out Line Flow and significantlyd change, and it is acute to cause system voltage
Strong fluctuation, under serious conditions may new energy unit set end voltage be more than high voltage protection definite value, cause extensive new energy de-
Net threatens the safe and stable operation of bulk power grid.
In order to improve the voltage stabilization characteristic of the high accounting power grid of new energy, China actively researches and develops and planning construction large capacity
Novel phase modifier improves the dynamic reactive enabling capabilities of power grid.Phase modifier is adjusted when operating normally according to the variation of set end voltage
Itself whole idle output, after a large amount of simulation analysis shows that phase modifier puts into operation, can be greatly reduced new energy under alternating current-direct current failure
Unit however only relies on the spontaneous response of phase modifier because of the probability of high pressure off-grid, and the dynamic reactive enabling capabilities of phase modifier obtain not
To making full use of, the method for operation for participating in power grid control to phase modifier is needed to explore, research phase modifier emergent control is used for
The measure for preventing new energy off-grid.
Explanation of nouns:
Chain off-grid is referred to and is worn due to a large amount of new energy into low, and generation of electricity by new energy power output is caused to be greatly reduced, system tide
Stream mitigates, and new energy power station busbar voltage is caused to increase, and is more than new energy unit high voltage protective definite value, causes new energy unit de-
Net.
Summary of the invention
Object of the present invention is to: enter new energy caused by low voltage crossing state to reduce extensive new energy unit
Chain high pressure off-grid risk, proposes a kind of phase modifier emergency control method and its system, the present invention using phase modifier encourage by force or
Underexcitation progress power grid emergent control can effectively reduce since the new energy unit that a large amount of new energy enter low voltage crossing initiation connects
Off-grid risk is locked, the safety and stability characteristic of the high accounting power grid of new energy is improved.
To achieve the goals above, the present invention is to realize by the following technical solutions:
A kind of phase modifier emergency control method of the invention, comprising the following steps:
When low voltage crossing occurs for new energy unit, the Wind turbines being previously received or photovoltaic power generation unit are issued
Low voltage crossing information be sent to the emergent control main website of grid control system, and obtain the new energy station bus electricity of monitoring
Press all phase modifier operation informations in information and power grid；
According to low voltage crossing information, the new energy station busbar voltage information of acquisition and phase modifier operation information, from pre-
If control scheme list match corresponding emergent control measure, be sent to phase modifier control sub-station；
The instruction of modification excitation reference voltage and duration instruction are sent to phase modifier excitation system, is terminated when the duration
Or triggering excitation system is underexcitation or crosses when encouraging protection limitation, and the excitation reference voltage is reverted to initial value, completes phase modifier
Emergent control.
Above-mentioned low voltage crossing information includes wearing in unit low voltage crossing signal and new energy station into low-voltage
Generated output total amount more.
Above-mentioned phase modifier operation information include phase modifier put into operation and whether stop information and phase modifier are in Qiang Lihou's
Defervescence；The phase modifier control sub-station is sent to emergent control main website by the high-speed digital communication network based on optical fiber.
Above-mentioned new energy station busbar voltage information is obtained by the wide-area monitoring systems in power grid；The emergent control master
It stands with the wide-area monitoring systems at major network regulation center using same clock synchronization source, for recognizing new energy station busbar voltage
Acquire the moment.
Above-mentioned control scheme list is calculated according to offline time-domain-simulation or online time-domain-simulation is calculated and formulated；
The control scheme list information includes that low-voltage occurs in the new energy station of each configuration phase modifier emergent control
When passing through, when the busbar voltage of monitoring is different value, the phase modifier of corresponding emergency adjustment configuration phase modifier emergent control is encouraged
Magnetic system reference voltage target value and duration.
Above-mentioned offline time-domain-simulation calculates, and based on network load peak and generation of electricity by new energy maximum simultaneity factor typical way is opened
Exhibition, formulates fixed Off-line control Policy Table；
The online time-domain-simulation calculates, and according to power grid real time operation mode, carries out rolling calculation, and according to simulation calculation
Refresh to form On-line Control Policy Table when fructufy.
When not having online computing function or online time-domain-simulation computing function is unavailable, obtained using offline time-domain-simulation
The control scheme list obtained executes control strategy；When there is the strategy of on-line table refreshed in real time, control is executed by strategy of on-line table
Strategy.
A kind of new energy low voltage crossing that prevents of the invention leads to the phase modifier emergency control system of chain off-grid, including
The emergent control main website is obtained for receiving the low voltage crossing information of low voltage crossing information substation transmission
The new energy station busbar voltage information of monitoring and each phase modifier operation information, according to preset control scheme list to corresponding tune
Camera control substation issues the instruction of modification phase modifier excitation reference voltage and duration instruction；
Low voltage crossing information substation, for receiving the low voltage crossing information of new energy station sending, and will be low
Voltage ride-through information is sent to emergent control main website；
With the phase modifier control sub-station, for obtaining each phase modifier operation information, and will be on each phase modifier operation information
Emergent control main website is given, the instruction of modification phase modifier excitation reference voltage and duration that reception emergent control main website issues refer to
It enables, and is sent to phase modifier exciter control system, execute phase modifier emergent control.
When new energy unit enters low voltage crossing, low voltage crossing information substation passes through the high speed number based on optical fiber
Word communication network sends low voltage crossing information to the emergent control main website in grid control system.
The transmittability of above-mentioned high-speed digital communication network is greater than 1Mbps.
Beneficial effects of the present invention are as follows:
The present invention is sent out information by low voltage crossing information substation after detecting that low voltage crossing occurs for new energy unit
Emergent control main website is given, emergent control main website obtains the new energy station busbar voltage information of monitoring and nets interior all phase modifiers
Operation information；Emergent control main website matches suitable emergent control measure from control scheme list, is sent to phase modifier control sub-station；
Phase modifier control sub-station sends the instruction of modification excitation reference voltage and duration instruction to phase modifier excitation system, completes phase modulation
Machine emergent control.The present invention using phase modifier participate in power grid emergent control, can effectively reduce extensive new energy unit enter it is low
The chain high pressure off-grid risk of new energy caused by voltage ride-through state is conducive to that high the chain of accounting power grid of new energy is defendd to stop
Electrification.
Detailed description of the invention
Fig. 1 is the work flow diagram of phase modifier emergency control method of the invention；
Fig. 2 is the phase modifier emergency control system principle that prevention new energy low voltage crossing of the invention leads to chain off-grid
Block diagram.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
A kind of phase modifier emergency control method of the invention, comprising the following steps:
1) low voltage crossing information substation is built in new energy station, what reception Wind turbines or photovoltaic power generation unit issued
Low voltage crossing information: the generated output including entering low voltage crossing in unit low voltage crossing signal and new energy station
Total amount；When low voltage crossing occurs for new energy unit, sent low voltage crossing information to by low voltage crossing information substation
The emergent control main website of grid control system；
2) after emergent control main website receives low voltage crossing information, the new energy station busbar voltage of monitoring is obtained, and lead to
Toning camera control substation obtains all phase modifier operation informations, putting into operation including phase modifier and stop information and phase modulation in power grid
Whether machine is in the defervescence of Qiang Lihou；
3) emergent control main website is according to the busbar voltage information of low voltage crossing information and acquisition, and comprehensive phase modifier operation
Information matches suitable emergent control measure from control scheme list, is sent to phase modifier control sub-station；
4) phase modifier control sub-station sends the instruction of modification excitation reference voltage to phase modifier excitation system and the duration refers to
Enable, after the duration or triggering excitation system it is underexcitation or cross encourage protection limitation when, by excitation reference voltage revert to just
Initial value completes phase modifier emergent control.
Wherein, chain off-grid is referred to and is worn due to a large amount of new energy into low, and generation of electricity by new energy power output is caused to be greatly reduced,
System load flow mitigates, and new energy power station busbar voltage is caused to increase, and is more than new energy unit high voltage protective definite value, leads to new energy
Unit off-grid.
In step 3), control scheme list is calculated according to offline time-domain-simulation or online time-domain-simulation is calculated and formulated, and controls plan
Sketch form information should include when low voltage crossing occurs for the new energy station of each configuration phase modifier emergent control, as the mother of monitoring
When line voltage is different value, the phase modifier excitation system reference voltage target of corresponding emergency adjustment configuration phase modifier emergent control
Value and duration.
Offline time-domain-simulation calculates, and based on network load peak and generation of electricity by new energy maximum simultaneity factor typical way is carried out,
Formulate fixed Off-line control Policy Table；The online time-domain-simulation calculates, and according to power grid real time operation mode, carries out rolling meter
It calculates, and is refreshed in real time according to simulation result and form On-line Control Policy Table；When do not have online computing function or it is online when
When domain simulation calculation function is unavailable, control strategy is executed using the control scheme list that offline time-domain-simulation obtains；It is real when existing
When refresh strategy of on-line table when, by strategy of on-line table execute control strategy.
Need to build emergent control main website, low voltage crossing information substation and phase modifier control in grid control system
Substation, wherein emergent control main website is used to receive the low voltage crossing information of low voltage crossing information substation transmission, obtains monitoring
New energy station busbar voltage information and each phase modifier operation information, according to control scheme list to corresponding phase modifier control son
Station issues the instruction of modification phase modifier excitation reference voltage and duration instruction；Low voltage crossing information substation is for receiving new energy
The low voltage crossing information that source station issues, and send that information to emergent control main website；Phase modifier control sub-station is for obtaining
Each phase modifier operation information is taken, and emergent control main website will be given in the information, receives the modification tune that emergent control main website issues
The instruction of camera excitation reference voltage and duration instruction, and phase modifier exciter control system is sent that information to, execute tune
Camera emergent control.
The present embodiment proposes a kind of phase modifier emergency control method and system.So-called prevention new energy low voltage crossing is led
It causes the phase modifier emergent control of chain off-grid to refer to, after grid disturbance causes new energy unit to enter low voltage crossing, can lead
Generation of electricity by new energy power output is caused to be greatly reduced, system load flow mitigates, and new energy power station busbar voltage increases, promptly strong using phase modifier
Encourage or it is underexcitation supported in new energy station near region or absorb idle, avoid new energy unit because of chain high pressure off-grid.
The prevention new energy low voltage crossing of the present embodiment leads to the phase modifier emergency control system block diagram of chain off-grid such as
Shown in Fig. 2, including emergent control main website, low voltage crossing information substation and phase modifier control sub-station.
The effect of low voltage crossing information substation is the low voltage crossing information for receiving new energy station and issuing, and by the letter
Breath is sent to emergent control main website.Using the substation in grid control system as low voltage crossing information substation.In power grid
When new energy unit being caused to enter low voltage crossing under disturbance, low voltage crossing information substation can pass through the high speed based on optical fiber
Digital communications network sends low voltage crossing information to the emergent control main website in grid control system.Wherein, the high speed number
The transmittability of word communication network should be not less than 1Mbps, so that the low voltage crossing information can quickly and steadily
It is sent to emergent control main website.
Emergent control main website in grid control system, effect are the low electricity for receiving low voltage crossing information substation and sending
More information is pressed to wear, the new energy station busbar voltage information of each monitoring, each phase modifier operation information are obtained, according to control scheme list
The instruction of modification phase modifier excitation reference voltage and duration instruction are issued to corresponding phase modifier control sub-station.
New energy station busbar voltage information is by WAMS (Wide Area Measurement System, wide area monitoring system
System) system acquisition.Emergent control main website and major network regulation center WAMS system use same clock synchronization source, with conveniently recognized described new
The acquisition moment of energy station busbar voltage.
Control scheme list can be calculated according to offline or online time-domain-simulation and be formulated, and control scheme list information should be included in each
It is right when the busbar voltage of monitoring is different value when configuring the new energy station generation low voltage crossing of phase modifier emergent control
The phase modifier excitation system reference voltage target value for the emergency adjustment configuration phase modifier emergent control answered and duration.When offline
Domain simulation calculation is typically based on network load peak and generation of electricity by new energy maximum simultaneity factor typical way and carries out, formulate it is fixed from
Line traffic control Policy Table；The online time-domain-simulation calculates, and according to power grid real time operation mode, carries out rolling calculation, and according to imitative
True calculated result refreshes in real time forms On-line Control Policy Table；Function is calculated when not having online computing function or online time-domain-simulation
When can be unavailable, control strategy be executed using the control scheme list that offline time-domain-simulation obtains；When online in the presence of refreshing in real time
When Policy Table, control strategy is executed by strategy of on-line table.
Phase modifier operation information includes the putting into operation of phase modifier, stop information, and whether phase modifier is in the defervescence of Qiang Lihou,
Emergent control main website is sent to by the high-speed digital communication network based on optical fiber by phase modifier control sub-station.Wherein, the height
The transmittability of speed digital communication network should be not less than 1Mbps, so that the phase modifier operation information can be quickly and steady
Surely it is sent to emergent control main website.
Phase modifier control sub-station will give emergent control main website for obtaining each phase modifier operation information in the information,
And the modification phase modifier excitation reference voltage that emergent control main website issues is received by the high-speed digital communication network based on optical fiber
Instruction and duration instruction, send that information to phase modifier exciter control system, execute phase modifier emergent control.Wherein,
The transmittability of the high-speed digital communication network should be not less than 1Mbps, so that the phase modifier operation information can be fast
Speed and be steadily sent to emergent control main website and phase modifier exciter control system.
The implementation process of the present embodiment is as shown in Figure 1, i.e. low voltage crossing information substation sends new energy unit low-voltage
Information is passed through to emergent control main website；Emergent control main website obtains all in the new energy station busbar voltage information and net of monitoring
Phase modifier operation information；Emergent control main website matches suitable emergent control measure from control scheme list, is sent to phase modifier control
System station；Phase modifier control sub-station sends the instruction of modification excitation reference voltage and duration instruction to phase modifier excitation system,
Complete phase modifier emergent control.The detailed process of the present embodiment is described in further detail below.
Step 1 describes to cause new energy unit to enter low voltage crossing constantly in grid disturbance, by low voltage crossing
Information substation receives low voltage crossing information from new energy station, and sends it to emergent control main website.
After step 2 describes the above-mentioned low voltage crossing information of emergent control main website reception, the new energy field of monitoring is obtained
It stands busbar voltage, obtains all phase modifier operation informations in power grid, wherein the phase modifier in stoppage in transit does not have Qiang Lineng
Power, the phase modifier in defervescence, which does not have, encourages by force ability；New energy station busbar voltage information can pass through the WAMS in power grid
(Wide Area Measurement System, wide-area monitoring systems) system obtains.
Step 3 describes emergent control main website according to the new energy station busbar voltage of low voltage crossing information and monitoring
Information, and comprehensive phase modifier operation information, match suitable emergent control measure from control scheme list, are sent to phase modifier control
Substation.
Step 4 describes to send modification excitation reference voltage instruction to phase modifier excitation system by phase modifier control sub-station
And the duration instruction, after the duration or triggering excitation system cross encourage or underexcitation protection limit when, excitation is referred to
Voltage reverts to initial value, completes phase modifier emergent control, terminates this method.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of phase modifier emergency control method, which comprises the following steps:
When low voltage crossing occurs for new energy unit, the Wind turbines being previously received or photovoltaic power generation unit are issued low
Voltage ride-through information is sent to the emergent control main website of grid control system, and obtains the new energy station busbar voltage letter of monitoring
All phase modifier operation informations in breath and power grid；
According to low voltage crossing information, the new energy station busbar voltage information of acquisition and phase modifier operation information, from preset
Control scheme list matches corresponding emergent control measure, is sent to phase modifier control sub-station；
The instruction of modification excitation reference voltage and duration instruction are sent to phase modifier excitation system, when the duration terminates or touches
Hair excitation system is underexcitation or crosses when encouraging protection limitation, and the excitation reference voltage is reverted to initial value, it is urgent to complete phase modifier
Control.
2. phase modifier emergency control method according to claim 1, which is characterized in that the low voltage crossing information includes
Enter the generated output total amount of low voltage crossing in unit low voltage crossing signal and new energy station.
3. phase modifier emergency control method according to claim 1, which is characterized in that the phase modifier operation information includes
Phase modifier put into operation and whether stop information and phase modifier are in defervescence of Qiang Lihou；The phase modifier control sub-station passes through base
Emergent control main website is sent in the high-speed digital communication network of optical fiber.
4. phase modifier emergency control method according to claim 1, which is characterized in that new energy station busbar voltage
Information is obtained by the wide-area monitoring systems in power grid；The wide-area monitoring systems of the emergent control main website and major network regulation center
Using same clock synchronization source, for recognizing the acquisition moment of new energy station busbar voltage.
5. phase modifier emergency control method according to claim 1, which is characterized in that the control scheme list is according to offline
Time-domain-simulation calculates or online time-domain-simulation is calculated and formulated；
The control scheme list information includes that low voltage crossing occurs in the new energy station of each configuration phase modifier emergent control
When, when the busbar voltage of monitoring is different value, the phase modifier excitation system of corresponding emergency adjustment configuration phase modifier emergent control
Reference voltage target value of uniting and duration.
6. phase modifier emergency control method according to claim 5, which is characterized in that the offline time-domain-simulation calculates,
Based on network load peak and generation of electricity by new energy maximum simultaneity factor typical way is carried out, and formulates fixed Off-line control Policy Table；
The online time-domain-simulation calculates, and according to power grid real time operation mode, carries out rolling calculation, and according to simulation result
Refresh in real time and forms On-line Control Policy Table.
7. phase modifier emergency control method according to claim 5, which is characterized in that when do not have online computing function or
When time-domain-simulation computing function is unavailable online, the control scheme list for utilizing offline time-domain-simulation to obtain executes control strategy；When
When in the presence of the strategy of on-line table refreshed in real time, control strategy is executed by strategy of on-line table.
8. a kind of phase modifier emergency control system, which is characterized in that including
The emergent control main website obtains monitoring for receiving the low voltage crossing information of low voltage crossing information substation transmission
New energy station busbar voltage information and each phase modifier operation information, according to preset control scheme list to corresponding phase modifier
Control sub-station issues the instruction of modification phase modifier excitation reference voltage and duration instruction；
Low voltage crossing information substation, for receiving the low voltage crossing information of new energy station sending, and by low-voltage
It passes through information and is sent to emergent control main website；
With the phase modifier control sub-station, for obtaining each phase modifier operation information, and will be given on each phase modifier operation information
Emergent control main website receives the instruction of modification phase modifier excitation reference voltage and duration instruction that emergent control main website issues,
And it is sent to phase modifier exciter control system, execute phase modifier emergent control.
9. phase modifier emergency control system according to claim 8, which is characterized in that new energy unit enters low-voltage and wears
When more, low voltage crossing information substation by high-speed digital communication network based on optical fiber send low voltage crossing information to
Emergent control main website in grid control system.
10. phase modifier emergency control system according to claim 9, which is characterized in that the high-speed digital communication network
Transmittability be greater than 1Mbps.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113964862A (en) * | 2021-09-30 | 2022-01-21 | 国电南瑞科技股份有限公司 | New energy power station perception control system and method |
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| CN105375524A (en) * | 2015-12-07 | 2016-03-02 | 中国电力科学研究院 | Wind power and thermal power bundled DC delivery sending-end power grid operation control method |
| CN107342630A (en) * | 2017-07-31 | 2017-11-10 | 国电南瑞科技股份有限公司 | A kind of phase modifier emergency control method and system for suppressing the continuous commutation failure of direct current |
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2019
- 2019-04-03 CN CN201910265444.0A patent/CN109950913A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375524A (en) * | 2015-12-07 | 2016-03-02 | 中国电力科学研究院 | Wind power and thermal power bundled DC delivery sending-end power grid operation control method |
| CN107342630A (en) * | 2017-07-31 | 2017-11-10 | 国电南瑞科技股份有限公司 | A kind of phase modifier emergency control method and system for suppressing the continuous commutation failure of direct current |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113964862A (en) * | 2021-09-30 | 2022-01-21 | 国电南瑞科技股份有限公司 | New energy power station perception control system and method |
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