CN108471122A - A kind of redundancy regulating command processing method - Google Patents
A kind of redundancy regulating command processing method Download PDFInfo
- Publication number
- CN108471122A CN108471122A CN201810396255.2A CN201810396255A CN108471122A CN 108471122 A CN108471122 A CN 108471122A CN 201810396255 A CN201810396255 A CN 201810396255A CN 108471122 A CN108471122 A CN 108471122A
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- Prior art keywords
- host
- avc
- regulating command
- queue
- order
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a kind of redundancy regulating command processing methods, AVC systems include that AVC adjusts main website and the substations AVC, the substations AVC include communication bus and telemechanical server 1, telemechanical server 2, AVC host computer A, AVC host computer B, AVC slave computer A and AVC slave computers B etc., and telemechanical server 1 and telemechanical server 2 are connect with AVC scheduling stations.Redundancy regulating command processing method proposed by the present invention, no matter what the upper machine hosts of AVC first received is the regulating command of regulating command or the standby host forwarding of dispatching down distributing, it will be immediately performed, and when receiving corresponding scheduling adjustment order or forwarding regulating command, do not re-execute, in addition, if host execute order this period in occur cutting machine behavior when, standby host after being cut to host wants that regulating command forwarded just now can be immediately performed, and ensures that voltage adjusts qualification rate.
Description
Technical field
The present invention relates to automatic voltage control system, more particularly to a kind of redundancy regulating command processing method, the redundancy
Regulating command processing method can guarantee the qualification rate that voltage is adjusted.
Background technology
Automatic voltage control system (AVC) is power grid security, high-quality and economical operation important means, and AVC full name are
Auto Voltage Control can carry out certainly the generator reactive power in power grid using AVC systems in early stage power grid
It is dynamic to adjust, ensure Network Voltage Stability and the rationally distribution of adjustment electric network reactive-load trend, when AVC systems do not put into operation, copper
Externally idle flowing average value is 26.8MVar to mound power grid, and whole day adds up to 643.2MVarh, and power grid after AVC systems are put into
Reactive power is reduced to as 5.3MVar, and whole day adds up to 127.2MVarh, therefore raising of the AVC systems to operation of power networks economy
It is very significant.
In order to ensure AVC substation systems can steady operation always, dual-computer redundancy mode is commonly used, by using
A machines and B machines indicate dual-computer redundancy, wherein one is used as host, another is used as standby host, and usually host can be to the same step number of standby host
According to, standby host can be forwarded to host regulating command (standby host allows for two telemechanical servers to host forwarding regulating command, if
Wherein one failure, such as connection the upper machine hosts of AVC that telemechanical server failure, then the upper machine hosts of AVC without
Method is properly received regulating command, must forward the adjusting obtained from an other telemechanical server by AVC host computer standby hosts at this time
Order)；If the upper machine hosts of AVC break down, it can be automatically cut into standby host, standby host original at this time can be cut to host, after
The control function of continuous completion system；Dual-computer redundancy is introduced with postponing, host can continuously receive two equally in a short period of time
Order, can be carried out when host is exectorial reactive power distribution calculate, system CPU occupancy rate is very high at this time, if held
The order as two of having gone will certainly cause unnecessary system resource waste, so needing at redundancy regulating command
Reason, therefore propose a kind of redundancy regulating command processing method.
Invention content
The purpose of the present invention is to provide a kind of redundancy regulating command processing methods, it is ensured that the qualification that voltage is adjusted
Rate, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of redundancy regulating command processing method, including such as
Lower step：
S1：Host and standby host respectively create a command queue；
S2：The element preserved in queue is：Command point title, bid value, such as I busbar voltage desired values, 231, source tune
Degree or forwarding,
S3：Capacity of queue can at least preserve the target complete value of wheel adjusting, and a such as power plant has six sections of busbares, queue to hold
Amount is set as 12；
S4：Newest order is placed on queue tail, after capacity of queue is full of, removes the element of queue head；
S5：Order comparison：Scheduling sends to host and standby host order simultaneously, the time difference in 1 second, traffic order and forwarding
Order includes the following two kinds situation：
1：Host first receives traffic order, and an element is added in command queue, and then after 1 second, standby host turns
Say the word appearance；Comparison control calls the roll and is worth just the same, and it is the same order, host that time phase difference, which was believed that within 5 seconds,
This forward command is not carried out, realization ignores processing to redundancy regulating command.
2：Host is first connected to forward command, and an element is added in command queue, has then spent 1 second, and host receives
To regulation goal value, time phase difference is very short, and the traffic order being followed by is not carried out in host, and Redundant Control order is neglected in realization
Slightly handle.
S6：Switch in case of host and standby host, host becomes standby host, and standby host becomes host, just switched at this time
Host need check regulating command queue, analyze the last time regulating command of each busbar, if the time of regulating command with
The difference of current time is less than 5 minutes, is just immediately performed this order.
Compared with prior art, the beneficial effects of the invention are as follows：Redundancy regulating command processing method proposed by the present invention, no
By host first receive be dispatching down distributing regulating command or standby host forwarding regulating command, will be immediately performed, and
And it when receiving corresponding scheduling adjustment order or forwarding regulating command, does not re-execute, in addition, if host exists
It executes in order this period when occurring cutting machine behavior, standby host after being cut to host wants that tune forwarded just now can be immediately performed
Section order ensures that voltage adjusts qualification rate.
Description of the drawings
Fig. 1 is the AVC system diagrams of the present invention；
Fig. 2 is the electric main wiring diagram of the present invention；
Fig. 3 is the voltage regulation curve figure of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Main website and the substations AVC are adjusted referring to Fig. 1, AVC systems include AVC, the substations AVC include communication bus and telemechanical clothes
Be engaged in device 1, telemechanical server 2, AVC host computer A, AVC host computer B, AVC slave computer A and AVC slave computers B etc., telemechanical server
1 and telemechanical server 2 connect with AVC scheduling stations, the input terminal of AVC host computer A and AVC host computers B respectively with telemechanical service
Device 1 is connected with the output end of telemechanical server 2, AVC host computer A, AVC host computer B, AVC slave computer A and AVC slave computers B's
Output end is connect with communication bus.
The scheduling station of AVC systems is determined as the voltage target that each power plant issues by calculating the reactive power flow of the whole network
Value, each power plant can calculate the nothing for needing to distribute for each generator in real time when receiving dispatching down distributing desired value
Work(power, and exciting current is controlled to realize that voltage is adjusted；
Entirely communication process is：
One：Dispatching down distributing busbar voltage desired value is to the substations AVC telemechanical server；
Two：Desired value is transmitted to AVC host computers by telemechanical server；
Three：AVC host computers calculate every generator needs adjust it is idle：
Four：AVC slave computers, which send out excitation unit, to be increased magnetic or subtracts magnetic order to adjust unit reactive power, and then is influenced female
Line voltage changes, and realizes automatism voltage control.
Referring to Fig. 2,
AVC system electrical main electrical schemes include 220KV circuits 1,220KV circuits 2,220KV-I busbares, 220KV-II busbares,
Bus connection switch, disconnecting link (K1-K4), No. 1 main transformer, No. 2 main transformers, No. 1 generator and No. 2 generators, 220KV circuits 1,
220KV circuits 2 are connected on 220KV-I busbares, and 220KV-I busbares are electrically connected by bus connection switch with 220KV-II busbares, knife
The input of lock K1 terminates 220KV-I busbares, and the output termination bus connection switch of disconnecting link K1 is electrically connected with No. 1 main transformer input terminal, and 1
The output of number main transformer terminates No. 1 generator input terminal, and the output termination disconnecting link K2 and 220KV-II busbares of disconnecting link K1 are electrically connected
It connects；The input of disconnecting link K3 terminates 220KV-I busbares, the input terminal of output the termination bus connection switch and No. 2 main transformers of disconnecting link K3
The output termination disconnecting link K4 of electrical connection, the output end of output No. 2 generators of termination of No. 2 main transformers, disconnecting link K3 meets 220KV-
II busbares, above-mentioned wiring are double female double section wirings, according to the state of bus connection switch and disconnecting link (K1-K4), No. 1 generator and
No. 2 generators can be connected to 220KV-I busbares to different busbares, such as No. 1 generator, and No. 2 generators can be connected to 220KV-II
Busbar, or in turn, or when being that bus connection switch closes, No. 1 generator and No. 2 generators are all with 220KV-I busbar phases
Even, No. 1 generator and No. 2 generator parallel operations, it is right that the substations AVC need Dynamic Recognition to go out each busbar voltage desired value institute
The adjustable generator number answered；After the substations AVC receive regulating command, voltage-target therein can be parsed, and calculate
Then the reactive power sent out needed for each generator controls excitation unit to export corresponding idle work(using AVC slave computers
Rate.
Referring to Fig. 3, the Realvoltage in figure is virtual voltage, targetvoltage is target voltage, up
Voltage and down voltage are scheduling tolerance ranges, are no more than 0.5kv up and down, as long as virtual voltage can be steady
It is qualified to be scheduled in this range, in order to ensure AVC substation systems can steady operation always, two-shipper is commonly used
Redundant fashion introduces dual-computer redundancy with postponing, each AVC host computer can be attached thereto there are one telemechanical server, even
It is to intersect to be connected, i.e., telemechanical server 1 and telemechanical server 2 are all communicated with AVC host computers A, telemechanical server 1 and telemechanical service
Device 2 is all communicated with AVC host computers B, and the regulating command of dispatching down distributing may be by telemechanical server 1 and telemechanical server 2 simultaneously
It is to execute scheduling as host to be issued to AVC host computer A and AVC host computer B, AVC host computer A and AVC host computers B wherein one
The order issued, another is used as standby host that order is not carried out, and the task of standby host is will to order to be transmitted to host, this is resulted in
Host can continuously receive the order as two in a short period of time, here it is redundancy regulating command, at redundancy regulating command
Reason method is as follows：
A kind of redundancy regulating command processing method, includes the following steps：
The first step：Host and standby host respectively create a command queue；
Second step：The element preserved in queue is：Command point title, bid value, such as I busbar voltage desired values, 231, come
Source (scheduling or forwarding), time；
Third walks：Capacity of queue preserves the target complete value that a wheel is adjusted, and there are six sections of busbares, capacity of queue in a such as power plant
It is set as 12；
4th step：Newest order is placed on queue tail, after capacity of queue is full of, removes the element of queue head；
5th step：Order comparison：Scheduling sends order to host and standby host simultaneously, the time difference in 1 second, traffic order with
Forward command includes the following two kinds situation：
1：Host first receives traffic order, and be added in command queue an element (mother's I voltage-target, 228,
Scheduling, on 2 1st, 2,017 10：50：01 532), then spent 1 second, and the forward command of standby host has also carried out (mother's I voltage target
Value, 228, forwarding, on 2 1st, 2,017 10：50：02 673)；Comparison control is called the roll and value is duplicate, then time phase
Difference is very short (it is considered that being all same order within 5 seconds), and such host would not execute this forward command, realizes
Processing is ignored to redundancy regulating command；
2：Host is first connected to forward command, and (mother's I voltage-target, 224, turn one element of addition in command queue
Hair, on 2 5th, 2,017 22：30：07 544), then spent 1 second, host receive regulation goal value (mother's I voltage-target,
224, scheduling, on 2 5th, 2,017 22：30：08 187), and then time phase difference is very short, and such host would not be executed and is followed by
Traffic order, realization processing is ignored to Redundant Control order；
6th step：Switch in case of host and standby host, host becomes standby host, and standby host becomes host, just switches at this time
Complete host need check regulating command queue, analyze the last time regulating command of each busbar, if regulating command when
Between be less than 5 minutes with the difference of current time, be just immediately performed this order.
After redundancy regulating command processing：What though host first received be dispatching down distributing regulating command or standby host forwarding and
The regulating command come, will be immediately performed, and when receiving corresponding scheduling adjustment order or forwarding regulating command,
Do not re-execute, in addition, if host execute order this period in occur cutting machine behavior when, standby host is wanted after being cut to host
It can be immediately performed that regulating command forwarded just now, ensure that voltage adjusts qualification rate.
In conclusion redundancy regulating command processing method proposed by the present invention, no matter what host first received is dispatching down distributing
Regulating command or standby host forwarding regulating command, will be immediately performed, and when receiving corresponding scheduling tune
It when section order or forwarding regulating command, does not re-execute, in addition, if host is cut in this period is ordered in execution
When machine behavior, standby host after being cut to host wants that regulating command forwarded just now can be immediately performed, and it is qualified to ensure that voltage is adjusted
Rate.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of redundancy regulating command processing method, which is characterized in that include the following steps：
S1：Host and standby host respectively create a command queue；
S2：The element preserved in queue is：Command point title, bid value, such as I busbar voltage desired values, 231, source scheduling or
Forwarding,
S3：Capacity of queue preserves the target complete value that a wheel is adjusted, and a such as power plant has six sections of busbares, capacity of queue to be set as 12；
S4：Newest order is placed on queue tail, after capacity of queue is full of, removes the element of queue head；
S5：Order comparison：Scheduling sends to host and standby host order simultaneously, the time difference in 1 second, traffic order and forward command
Including the following two kinds situation：
1：Host first receives traffic order, and an element is added in command queue, and then after 1 second, the forwarding of standby host is ordered
It enables and occurring；Comparison control calls the roll and is worth just the same, and it is the same order that time phase difference, which was believed that within 5 seconds, and host will not
This forward command is executed, realization ignores processing to redundancy regulating command.
2：Host is first connected to forward command, and an element is added in command queue, has then spent 1 second, host receives tune
Desired value is spent, time phase difference is very short, and the traffic order being followed by is not carried out in host, and realization ignores place to Redundant Control order
Reason.
S6：Switch in case of host and standby host, host becomes standby host, and standby host becomes host, the host just switched at this time
Need to check regulating command queue, analyze the last time regulating command of each busbar, if the time of regulating command with it is current
The difference of time is less than 5 minutes, is just immediately performed this order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396255.2A CN108471122A (en) | 2018-04-28 | 2018-04-28 | A kind of redundancy regulating command processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396255.2A CN108471122A (en) | 2018-04-28 | 2018-04-28 | A kind of redundancy regulating command processing method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT401446B (en) * | 1990-05-21 | 1996-09-25 | Uher Ag | Ripple control system for an electrical power supply network |
| CN1314649A (en) * | 2000-03-16 | 2001-09-26 | 国际商业机器公司 | Electronic basiness system and method based on regulative strategy |
| CN2819596Y (en) * | 2005-06-01 | 2006-09-20 | 国电南京自动化股份有限公司 | Switching device of telecontrol main telecommunication apparatus |
| CN202121383U (en) * | 2011-07-01 | 2012-01-18 | 中国南方电网有限责任公司超高压输电公司南宁局 | Automatic voltage control system of regional electrical network |
| CN105072021A (en) * | 2015-08-11 | 2015-11-18 | 国电南瑞科技股份有限公司 | Cross-segment message forwarding method for dispatching automation systems |
| CN106549388A (en) * | 2015-09-18 | 2017-03-29 | 国家电网公司 | A kind of distributed SVC Control protection systems |
| CN107040932A (en) * | 2017-04-19 | 2017-08-11 | 深圳普智联科机器人技术有限公司 | AGV communication systems and its communicating control method based on double wireless communication channels |
-
2018
- 2018-04-28 CN CN201810396255.2A patent/CN108471122A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT401446B (en) * | 1990-05-21 | 1996-09-25 | Uher Ag | Ripple control system for an electrical power supply network |
| CN1314649A (en) * | 2000-03-16 | 2001-09-26 | 国际商业机器公司 | Electronic basiness system and method based on regulative strategy |
| CN2819596Y (en) * | 2005-06-01 | 2006-09-20 | 国电南京自动化股份有限公司 | Switching device of telecontrol main telecommunication apparatus |
| CN202121383U (en) * | 2011-07-01 | 2012-01-18 | 中国南方电网有限责任公司超高压输电公司南宁局 | Automatic voltage control system of regional electrical network |
| CN105072021A (en) * | 2015-08-11 | 2015-11-18 | 国电南瑞科技股份有限公司 | Cross-segment message forwarding method for dispatching automation systems |
| CN106549388A (en) * | 2015-09-18 | 2017-03-29 | 国家电网公司 | A kind of distributed SVC Control protection systems |
| CN107040932A (en) * | 2017-04-19 | 2017-08-11 | 深圳普智联科机器人技术有限公司 | AGV communication systems and its communicating control method based on double wireless communication channels |
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Application publication date: 20180831 |