CN110350513A - A kind of safety stabilization control system strategy of on-line definite value check method - Google Patents
A kind of safety stabilization control system strategy of on-line definite value check method Download PDFInfo
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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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
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
A kind of safety stabilization control system strategy of on-line definite value check method, off-line strategy are that operations staff formulates under the method for operation considered, but when certain extreme methods of operation occurs in actual electric network, will lead to offline stability control strategy failure；Off-line strategy is, if certain multiple successive failures occurs in power grid, to will lead to Policy Table's mismatch, there are unstability risks for power grid based on formulating under certain specific failures；Off-line strategy is not best definite value for some methods of operation, will lead to cut in actual operation, economic performance is poor；Off-line strategy formulates work complexity, is analyzing, is summarizing, needing worker experienced in classification process, it is made to face huge challenge.The present invention is repeatedly to be checked from different aspect to strategy of on-line definite value, improves the reliability that stabilized control system uses strategy of on-line definite value, provides technical guarantee for power network safety operation.
Description
Technical field
The invention belongs to power system automatic fields, relate more specifically to a kind of safety stabilization control system strategy of on-line
Definite value check method.
Background technique
Safety stabilization control system is the second defence line for ensureing power network safety operation, in certain method of operation knit stitch
Control strategy is formulated to some forecast failures, therefore effectively reliable security and stability control strategy is then safety stabilization control system
Core and power network safety operation guarantee.
Security and stability control strategy includes the method for operation, four seed type information of failure mode, trend mode and control measure,
And the Policy Table for forming clear logic in a particular format, being easy to understand, facilitate application developer to program.It is wide both at home and abroad at present
The Off-line control strategy that the control strategy of general application mostly uses offline mode to formulate, mode computing staff or parallel computer according to
Research power grid is likely to occur the forecast failure type under the method for operation and carries out fault scanning, and the power grid that must send as an envoy to keeps safety and stability
Measure, is analyzed calculated result later, is summarized, is sorted out and is organized into Policy Table, and safety is written in Policy Table by programming personnel
Stabilizing control system.When certain failure occurs for power grid, if the Off-line control strategy of stabilizing control system and grid operation mode,
When failure mode and trend mode match, otherwise stabilized control system movement excision unit or load are failure to actuate.
Off-line strategy is primarily present following problems:
(1) off-line strategy is that operations staff formulates under the method for operation considered, but occurs in actual electric network certain
When the extreme method of operation, offline stability control strategy failure will lead to；
(2) off-line strategy, if certain multiple successive failures occurs in power grid, is incited somebody to action based on formulating under certain specific failures
Lead to Policy Table's mismatch, there are unstability risks for power grid；
(3) off-line strategy is not best definite value for some methods of operation, will lead to cut in actual operation, warp
Performance of helping is poor；
(4) off-line strategy formulates work complexity, is analyzing, is summarizing, needing worker experienced in classification process, is making it
Face huge challenge.
The drawbacks of based on the above off-line strategy, there is an urgent need to a kind of safety on line Stable Control Strategies of real-time matching, full
Sufficient grid operation mode, twin failure reduce control cost and mitigate the requirement of worker's burden, and are reliably issued to live steady
Control system, as the strategy in subsequent time period.
Summary of the invention
Goal of the invention:
This demand, this hair are checked using needing to carry out tactful validity when strategy of on-line definite value for live stabilized control system
Bright to propose a kind of safety stabilization control system strategy of on-line definite value check method, the purpose is to solve following problems:
(1) off-line strategy is that operations staff formulates under the method for operation considered, but occurs in actual electric network certain
When the extreme method of operation, offline stability control strategy failure will lead to；
(2) off-line strategy, if certain multiple successive failures occurs in power grid, is incited somebody to action based on formulating under certain specific failures
Lead to Policy Table's mismatch, there are unstability risks for power grid；
(3) off-line strategy is not best definite value for some methods of operation, will lead to cut in actual operation, warp
Performance of helping is poor；
(4) off-line strategy formulates work complexity, is analyzing, is summarizing, needing worker experienced in classification process, is making it
Face huge challenge.
The method of the present invention guarantees that stabilized control system receives by repeatedly checking stabilized control system strategy of on-line definite value from different aspect
Strategy of on-line definite value it is accurate and effective.
Technical solution:
The present invention specifically uses following technical scheme:
A kind of safety stabilization control system strategy of on-line definite value check method, described method includes following steps:
(1), dispatching terminal strategy of on-line definite value is triggered, and generates strategy of on-line fixed value list needed for safety stabilization control system；
(2), the strategy of on-line fixed value list that dispatching terminal calculation and check generates, and decide whether under safety stabilization control system
The power grid analog quantity information that strategy of on-line definite value table and dispatching terminal after hair check are collected, for by safety stabilization control system pair
Dispatching terminal determines the information check issued；
(3), dispatching terminal receives the strategy of on-line fixed value list after being checked by safety stabilization control system and checks safety and stability
Whether the strategy of on-line fixed value list sent in control system and the fixed value list that buffer area saves are consistent, generate new strategy of on-line definite value
It is single；
(4), the strategy of on-line fixed value list sent on newly-generated strategy of on-line fixed value list and safety stabilization control system is checked
Within the allowable range whether error, and decide whether to be updated to the strategy of on-line definite value after checking.
(1) the following two kinds mode in step by safety stabilization control system triggers dispatching terminal strategy of on-line definite value: thing
Therefore triggering or period triggering, after triggering, the strategy of on-line definite value nucleus correcting system of dispatching terminal is triggered in accident or the period triggers institute's shape
At the new method of operation under for forecast failure or fault set calculate corresponding On-line Control strategy definite value, and it is steady to generate safety
Determine strategy of on-line fixed value list needed for control system.
(2) in step:
(2.1), the strategy of on-line fixed value list generated in dispatching terminal calculation and check (1) step and the lattice that fixed value list is sent in steady control
Whether formula, unit exactly match, if so, entering step (2.2)；If it is not, return step (1)；
(2.2), dispatching terminal strategy of on-line definite value nucleus correcting system, which calculates, generates under strategy of on-line definite value and the current method of operation
The absolute error of off-line strategy definite value whether within the allowable range, if so, entering step (2.3)；If it is not, return step (1)；
(2.3), dispatching terminal issues the strategy of on-line definite value table after checking to safety stabilization control system and dispatching terminal is collected
Power grid analog quantity；
(2.4), dispatching terminal checks dispatching terminal for safety stabilization control system to photos and sending messages under safety stabilization control system
Lower power generating network analog quantity and safety stabilization control system acquisition power grid analog quantity relative error whether within the allowable range, if
It is to enter step (3)；If it is not, return step (1)；
(3) in step:
(3.1), dispatching terminal receives the strategy of on-line fixed value list after safety stabilization control system is checked；
(3.2), dispatching terminal is checked the strategy of on-line fixed value list sent on safety stabilization control system and is determined with what buffer area saved
Whether value is single consistent, if so, entering step (3.3)；If it is not, return step (1)；
(3.3), forecast failure or event of the strategy of on-line definite value nucleus correcting system of dispatching terminal again according to the current method of operation
Barrier collection calculates strategy of on-line control strategy, generates new fixed value list.
(4) in step:
(4.1), strategy of on-line fixed value list and safety stabilization control system newly-generated in (3.3) step are checked in dispatching terminal
On the strategy of on-line fixed value list error sent whether within the allowable range, if so, entering step (4.3)；If it is not, return step (1)；
(4.2), dispatching terminal is sent to safety stabilization control system updates policy instructions.
Following two steps are executed before entering (2) step by (1) step:
(1), judge whether the communication channel between dispatching terminal and safety stabilization control system is normal, if so, entering step
(2)；If it is not, return step (1)；
(2), the validity that quantity of state is sent on dispatching terminal check safety stabilization control system, judges security and stability control
Whether system is normal, if so, entering step (2)；If it is not, return step (1).
(4.2) return step (one) after step.
(2) in step, quantity of state is sent on the safety stabilization control system that dispatching terminal is checked includes system exception, online
Policy Status and strategy starting.
Accident triggering is that element exits accident；Period triggering is measured by index of the time, i.e., adjacent online twice fixed
It is 10s -180s that value, which calculates time interval,.
When the strategy of on-line definite value check method is applied to power transmission network stability contorting, in step (2.4), in dispatching terminal
The power grid analog quantity parameter issued is opposite with the analog quantity parameter of same place synchronization that safety stabilization control system acquires
When error is checked, the safety and stability feature of power grid under different faults should be grasped, selection can embody power grid security under the failure
Some analog quantitys of invariant feature check parameter, the relatively weak some electric simulation amounts for embodying stabilization of power grids feature as main
As secondary check parameter；Main relative error of parameter setting value of checking is less than 2%, secondary check relative error of parameter setting value
Less than 10%.
A kind of safety stabilization control system strategy of on-line definite value nucleus correcting system, the system include dispatching terminal strategy of on-line definite value
Trigger module, strategy of on-line fixed value list check module, new strategy of on-line fixed value list generation module and error and check module；
Strategy of on-line definite value trigger module triggers dispatching terminal strategy of on-line definite value, and generates needed for safety stabilization control system
Strategy of on-line fixed value list；
Strategy of on-line fixed value list is checked module and is checked to the strategy of on-line fixed value list that strategy of on-line definite value trigger module generates,
And decide whether to issue the power grid simulation that strategy of on-line definite value table and dispatching terminal after checking are collected to safety stabilization control system
Information is measured, and determines by safety stabilization control system the information check issued to dispatching terminal；
New strategy of on-line fixed value list generation module receives the security and stability control in strategy of on-line fixed value list check module
Strategy of on-line fixed value list after system checking, and check send online fixed value list and buffer area to save in steady control fixed value list whether one
It causes, generates new strategy of on-line fixed value list；
Error check module check sent on the newly-generated strategy of on-line fixed value list and safety stabilization control system
Within the allowable range whether line strategy fixed value list error, and decide whether to be updated to the strategy of on-line definite value after checking.
Advantageous effect:
To guarantee that stabilized control system can accurately and reliably receive the strategy of on-line that dispatching terminal issues, not only need to realize dispatching terminal
With the communication of stabilized control system, it is also necessary to repeatedly be checked from different aspect to strategy of on-line definite value, otherwise stabilized control system uses
Off-line strategy definite value.The present processes respectively check strategy of on-line definite value in dispatching terminal and stabilized control system end, guarantee
The strategy of on-line fixed value list and the strategy of on-line fixed value list that receives of stabilized control system termination that communication channel, dispatching terminal generate be it is accurate,
Effectively, dispatching terminal is sent on the strategy of on-line fixed value list after finally checking stabilized control system, and calculates generation again with dispatching terminal
Fixed value list carry out consistency check.During check, if some condition is unsatisfactory for, stabilized control system will use off-line strategy
Definite value；Only when full terms meet, stabilized control system just uses strategy of on-line definite value.
To sum up, the present invention is repeatedly to be checked from different aspect to strategy of on-line definite value, improves stabilized control system use
The reliability of strategy of on-line definite value provides technical guarantee for power network safety operation.
Detailed description of the invention
Fig. 1 is strategy of on-line fixed value calculation, generation and the nucleus correcting system schematic diagram of dispatching terminal and stabilized control system composition；
Fig. 2 is stabilized control system strategy of on-line fixed value checking process.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The check of the method for the present invention stabilized control system strategy of on-line definite value on site updates, respectively in dispatching terminal and steady control system
Strategy of on-line definite value is checked at system end, guarantees strategy of on-line fixed value list and stabilized control system that communication channel, dispatching terminal generate
Terminate the strategy of on-line fixed value list that receives be it is accurate and effective, on the strategy of on-line fixed value list after finally checking stabilized control system
Dispatching terminal is sent, and calculates the fixed value list progress consistency check of generation again with dispatching terminal.During check, if some
Part is unsatisfactory for, and stabilized control system will use off-line strategy definite value；Only when full terms meet, stabilized control system just uses online plan
Slightly definite value.
Fig. 1 is strategy of on-line fixed value calculation, generation and the nucleus correcting system schematic diagram of dispatching terminal and stabilized control system composition, by adjusting
Degree end calculates the control strategy of forecast failure under the method for operation according to online EMS and WAMS data, by a series of check
Afterwards, stabilized control system strategy definite value is updated to the strategy of on-line definite value of dispatching down distributing.Communication protocol is to realize open, rule in the present invention
The principles such as model, standard, it is preferred to use 103 specifications as national standard.
The present invention sends the control plan of ± 800kV extra-high voltage direct-current (rated power is 10,000 MW) locking outside with certain regional power grid
Slightly embodiment is illustrated, and according to off-line strategy, when extra-high voltage direct-current locking, which needs to take and cut
Machine control measure cut machine power=direct current locking power (Pd)-and retain power (Pb=2000MW).
As shown in Fig. 2, the specific design procedure of each link of the method for the present invention is as follows:
(1) stabilized control system uses off-line strategy definite value；
The extra-high voltage direct-current puts into operation in embodiment, and when occurring to be latched failure, sending end regional power grid cuts the choosing of machine control measure
With off-line strategy, the reservation power in control strategy is 2000MW.
(2) when grid operation mode changes (element exits or trend great variety) or adjacent definite value online twice
Time interval is calculated greater than after 10s, the strategy of on-line fixed value calculation system of dispatching terminal is under the new method of operation for anticipation event
Barrier or fault set calculate corresponding On-line Control strategy definite value, and generate fixed value list needed for stabilized control system；
In embodiment, when the regional power grid is because certain reason (do not permit by climate change or low-carbon emission or other direct currents
Perhaps modulation etc.), the method for operation of the regional power grid is changed, the strategy of on-line fixed value calculation system of dispatching terminal is in this method of operation
It is latched the new control strategy of calculation of fault for the extra-high voltage direct-current down, it is 2500MW that power is retained in new control strategy, and
The fixed value list format that stability control device can identify is generated, the strategy of on-line fixed value list of generation see the table below.
| Serial number | Definite value title | Setting range | Setting valve | Unit |
| 1 | Retain power | 0~10000 | 2500 | MW |
(3) do you judge whether the communication channel between dispatching terminal and stabilized control system normal? if so, entering step (4)；If it is not,
Return step (1)；
In embodiment, stabilized control system sends a heartbeat message control word (being set as 1) to control centre every 1s, if adjusting
Degree center cannot receive heartbeat message control word (i.e. in 4s) continuous 4 times, then illustrate communication channel exception；If control centre can be held
It is continuous to receive heartbeat message control word, then illustrate that communication channel is normal.
(4) dispatching terminal check stabilized control system on send quantity of state (such as system exception, strategy of on-line state, strategy starting
Deng) validity, judge whether stabilized control system normal? if so, entering step (5)；If it is not, return step (1)；
In embodiment, stabilized control system send device exception control word on dispatching terminal, if device exception control word is 1, says
Bright stabilized control system is abnormal；If device exception control word is 0, illustrate that stabilized control system is normal.
(5) format of fixed value list, unit are sent on the strategy of on-line fixed value list that dispatching terminal calculation and check generates and steady control is
No exact matching? if so, entering step (6)；If it is not, return step (1)；
In embodiment, stabilized control system send offline fixed value list as shown in the table on dispatching terminal, and dispatching terminal checks determining for generation
Whether value list and the definite value single-unit above sent are consistent, and whether in setting range, fixed value list definite value title and quantity are setting valve
It is no consistent?
| Serial number | Definite value title | Setting range | Setting valve | Unit |
| 1 | Retain power | 0~10000 | MW |
(6) dispatching terminal strategy of on-line fixed value calculation system-computed generate line strategy definite value and the current method of operation under from
Within the allowable range whether the absolute error of line strategy definite value? if so, entering step (7)；If it is not, return step (1)；
In embodiment, retain power error and be set as 800MW, if retaining power and offline definite value in strategy of on-line fixed value list
Is absolute error in list less than 800? if so, entering step (7)；If it is not, return step (1)；
(7) dispatching terminal issues the power grid simulation that the strategy of on-line definite value table after checking and dispatching terminal are collected to stabilized control system
Amount；
In embodiment, dispatching terminal issues strategy of on-line fixed value list and power grid analog quantity to stabilized control system, and power grid analog quantity is shown in
Following table.
| Serial number | Title | Numerical value | Unit |
| 1 | Inverter side frequency | 49.98 | Hz |
| 2 | 1 output power of pole | 5005 | MW |
| 3 | 2 output power of pole | 5000 | MW |
| 4 | Inversion side bus voltage | 501 | kV |
| 5 | Wind power plant collects 1 output power of station | 345 | MW |
| 6 | Wind power plant collects 2 output powers of station | 280 | MW |
| 7 | Wind power plant collects 3 output powers of station | 360 | MW |
| 8 | Send out circuit output power in power station 1 | 450 | MW |
| 9 | Send out circuit output power in power station 2 | 400 | MW |
| 10 | Send out circuit output power in power station 3 | 380 | MW |
| 11 | Thermal power plant 1 sends out circuit output power | 620 | MW |
| 12 | Thermal power plant 2 sends out circuit output power | 590 | MW |
| 13 | Thermal power plant 3 sends out circuit output power | 610 | MW |
(8) after stabilized control system receives the information that dispatching terminal issues, power generating network analog quantity and steady control under dispatching terminal is checked and is filled
Whether within the allowable range set the power grid analog quantity relative error of acquisition? if so, entering step (9)；If it is not, return step (1)；
It is frequency stabilization problem caused by direct current locking is main, therefore can the frequency of power grid, direct current is defeated in embodiment
Power and inversion side bus voltage is sent to check parameter as main, wind power plant, power station and thermal power plant's power output are used as secondary check
Parameter, the main relative error of parameter of checking is within 2%, and the secondary check relative error of parameter is within 10%.
(9) stabilized control system by the strategy of on-line fixed value list after check again on send dispatching terminal；
In embodiment, stabilized control system will send dispatching terminal on the strategy of on-line fixed value list after check again；
(10) in embodiment, dispatching terminal check send online fixed value list and buffer area to save in steady control fixed value list whether one
Cause? if so, entering step (11)；If it is not, return step (1)
(11) forecast failure or failure of the strategy of on-line fixed value calculation system of dispatching terminal again according to the current method of operation
Collection calculates corresponding strategy of on-line control strategy, generates new fixed value list；
In embodiment, dispatching terminal strategy of on-line fixed value calculation system is latched again according to the current method of operation for direct current
Calculation of fault retains power, and generates new fixed value list again, see the table below
| Serial number | Definite value title | Setting range | Setting valve | Unit |
| 1 | Retain power | 0~10000 | 2502 | MW |
(12) in embodiment, the online plan sent on newly-generated strategy of on-line fixed value list and stabilized control system is checked in dispatching terminal
Does slightly whether within the allowable range fixed value list relative error (set relative error less than 0.1%)? if so, entering step (13)；If
It is no, return step (1)；
(13) in embodiment, dispatching terminal sends thinner policy instructions control word 1 to stabilized control system；
(14) stability control device definite value is updated to the strategy of on-line definite value after checking；
(15) return step (2) wait next strategy of on-line to calculate in embodiment.
In the present embodiment, system is in off-line strategy definite value mode, and grid operation mode changes, and dispatching terminal is counted automatically
It calculates and generates new strategy of on-line definite value, and test to corresponding strategy of on-line definite value.If new strategy of on-line control strategy is fixed
Value has passed through inspection, then tactful definite value is updated to strategy of on-line definite value in stabilized control system, otherwise, using off-line strategy definite value.
Correspondingly, it the present invention also provides a kind of safety stabilization control system strategy of on-line definite value nucleus correcting system, is able to carry out
The method of above-described embodiment realizes that same effect, the system include that dispatching terminal strategy of on-line definite value trigger module, strategy of on-line are fixed
Single module, new strategy of on-line fixed value list generation module and the error of checking of value checks module；
Strategy of on-line definite value trigger module triggers dispatching terminal strategy of on-line definite value, and generates needed for safety stabilization control system
Strategy of on-line fixed value list；
Strategy of on-line fixed value list is checked module and is checked to the strategy of on-line fixed value list that strategy of on-line definite value trigger module generates,
And decide whether to issue the power grid simulation that strategy of on-line definite value table and dispatching terminal after checking are collected to safety stabilization control system
Information is measured, and determines by safety stabilization control system the information check issued to dispatching terminal；
New strategy of on-line fixed value list generation module receives the security and stability control in strategy of on-line fixed value list check module
Strategy of on-line fixed value list after system checking, and check send online fixed value list and buffer area to save in steady control fixed value list whether one
It causes, generates new strategy of on-line fixed value list；
Error check module check sent on the newly-generated strategy of on-line fixed value list and safety stabilization control system
Within the allowable range whether line strategy fixed value list error, and decide whether to be updated to the strategy of on-line definite value after checking.
Above embodiments are received to live stabilized control system to illustrate that the method for the present invention is checked by strategy of on-line definite value
Strategy of on-line definite value combine the current method of operation carry out validity check, improve stabilized control system using strategy of on-line definite value can
By property and accuracy.
Claims (11)
1. a kind of safety stabilization control system strategy of on-line definite value check method, it is characterised in that: the method includes walking as follows
It is rapid:
(1), dispatching terminal strategy of on-line definite value is triggered, and generates strategy of on-line fixed value list needed for safety stabilization control system；
(2), the strategy of on-line fixed value list that dispatching terminal calculation and check generates, and decide whether to issue school to safety stabilization control system
The power grid analog quantity information that strategy of on-line definite value table and dispatching terminal after core are collected, is used for by safety stabilization control system to scheduling
End determines the information check issued；
(3), dispatching terminal receives the strategy of on-line fixed value list after being checked by safety stabilization control system and checks security and stability control
Whether the strategy of on-line fixed value list sent in system and the fixed value list that buffer area saves are consistent, generate new strategy of on-line fixed value list；
(4), the strategy of on-line fixed value list error sent on newly-generated strategy of on-line fixed value list and safety stabilization control system is checked
Whether within the allowable range, and decide whether to be updated to the strategy of on-line definite value after checking.
2. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 1, it is characterised in that:
(1) the following two kinds mode in step by safety stabilization control system triggers dispatching terminal strategy of on-line definite value: accident triggering or
Period triggering, after triggering, the strategy of on-line definite value nucleus correcting system of dispatching terminal is formed by new in accident triggering or period triggering
Corresponding On-line Control strategy definite value is calculated for forecast failure or fault set under the method for operation, and generates security and stability control system
Strategy of on-line fixed value list needed for uniting.
3. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 2, it is characterised in that:
(2) in step:
(2.1), the strategy of on-line fixed value list generated in dispatching terminal calculation and check (1) step and the format that fixed value list is sent in steady control,
Whether unit exactly matches, if so, entering step (2.2)；If it is not, return step (1)；
(2.2), dispatching terminal strategy of on-line definite value nucleus correcting system, which calculates, generates under strategy of on-line definite value and the current method of operation offline
The absolute error of tactful definite value whether within the allowable range, if so, entering step (2.3)；If it is not, return step (1)；
(2.3), dispatching terminal issues the electricity that the strategy of on-line definite value table after checking and dispatching terminal are collected to safety stabilization control system
Net analog quantity；
(2.4), dispatching terminal is checked dispatching terminal for safety stabilization control system and is issued to photos and sending messages under safety stabilization control system
Power grid analog quantity and safety stabilization control system acquisition power grid analog quantity relative error whether within the allowable range, if so, into
Enter step (3)；If it is not, return step (1).
4. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 3, it is characterised in that:
(3) in step:
(3.1), dispatching terminal receives the strategy of on-line fixed value list after safety stabilization control system is checked；
(3.2), the fixed value list that dispatching terminal checks the strategy of on-line fixed value list sent on safety stabilization control system and buffer area saves
It is whether consistent, if so, entering step (3.3)；If it is not, return step (1)；
(3.3), forecast failure or fault set of the strategy of on-line definite value nucleus correcting system of dispatching terminal again according to the current method of operation
Strategy of on-line control strategy is calculated, new fixed value list is generated.
5. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 4, it is characterised in that:
(4) in step:
(4.1), it checks in dispatching terminal and is sent on strategy of on-line fixed value list and safety stabilization control system newly-generated in (3.3) step
Strategy of on-line fixed value list error whether within the allowable range, if so, entering step (4.3)；If it is not, return step (1)；
(4.2), dispatching terminal is sent to safety stabilization control system updates policy instructions.
6. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 5, it is characterised in that:
Following two steps are executed before entering (2) step by (1) step:
(1), judge whether the communication channel between dispatching terminal and safety stabilization control system is normal, if so, entering step
(2)；If it is not, return step (1)；
(2), the validity that quantity of state is sent on dispatching terminal check safety stabilization control system, judges safety stabilization control system
It is whether normal, if so, entering step (2)；If it is not, return step (1).
7. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 6, it is characterised in that:
(4.2) return step (one) after step.
8. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 7, it is characterised in that:
(2) in step, dispatching terminal check safety stabilization control system on send quantity of state include system exception, strategy of on-line state,
And strategy starting.
9. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 2, it is characterised in that:
Accident triggering is that element exits accident；Period triggering is measured by index of the time, i.e., adjacent online fixed value calculation twice when
Between between be divided into 10s -180s.
10. a kind of safety stabilization control system strategy of on-line definite value check method according to claim 3, feature exist
In: when the strategy of on-line definite value check method is applied to power transmission network stability contorting, in step (2.4), issued in dispatching terminal
Power grid analog quantity parameter and safety stabilization control system acquisition same place synchronization analog quantity parameter relative error
When being checked, the safety and stability feature of power grid under different faults should be grasped, selection can embody electricity net safety stable under the failure
Some analog quantitys of feature check parameter, the relatively weak some electric simulation amount conducts for embodying stabilization of power grids feature as main
Secondary check parameter；Less than 2%, secondary check relative error of parameter setting value is less than main relative error of parameter setting value of checking
10%.
11. a kind of safety stabilization control system strategy of on-line definite value nucleus correcting system according to claim 1, feature exist
In: the system includes dispatching terminal strategy of on-line definite value trigger module, strategy of on-line fixed value list checks module, new strategy of on-line is determined
It is worth single generation module and error checks module；
Strategy of on-line definite value trigger module triggers dispatching terminal strategy of on-line definite value, and generates online needed for safety stabilization control system
Tactful fixed value list；
Strategy of on-line fixed value list is checked module and is checked to the strategy of on-line fixed value list that strategy of on-line definite value trigger module generates, and certainly
The fixed power grid analog quantity letter that the strategy of on-line definite value table after checking and dispatching terminal collection whether are issued to safety stabilization control system
Breath, and the information check issued is determined by safety stabilization control system to dispatching terminal；
New strategy of on-line fixed value list generation module receives the safety stabilization control system in strategy of on-line fixed value list check module
Strategy of on-line fixed value list after check, and whether the fixed value list for sending online fixed value list to save with buffer area in the steady control of check is consistent,
Generate new strategy of on-line fixed value list；
Error checks module and checks the online plan sent on the newly-generated strategy of on-line fixed value list and safety stabilization control system
It whether within the allowable range to omit fixed value list error, and decides whether to be updated to the strategy of on-line definite value after checking.
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