CN104979823B - Safety and stability online prevention and control optimization decision method for multi-stage scheduling collaboration of power grid - Google Patents
Safety and stability online prevention and control optimization decision method for multi-stage scheduling collaboration of power grid Download PDFInfo
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Abstract
The invention discloses a safety and stability online prevention and control optimization decision method for multi-stage scheduling collaboration of a power grid, and belongs to the technical field of power system scheduling operation control. Due to the fact that safety and stability problems in a large power grid are interwoven with each other, an operation control mode of a multi-stage regulation and control method is combined so as to disclose an online operation mode and prevention and control candidate measures for a power grid, which comprises the regulation and control center and a direct subordinate regulation and control center thereof, a direct superior regulation and control center and a direct subordinate regulation and control center thereof, at each regulation and control center at each stage, so that safety and stability online estimation on a fault set which directly defenses the large power grid is carried out; influencing factors of cooperative defense of the regulation and control center at each stage are introduced to compute control performance comprehensive indexes of prevention and control candidate measures, so that prevention and control measure calculation for the fault set which directly defenses the large power grid is carried out; and safety and stability verification is carried out on the combined prevention and control measures, so that the safety and stability online prevention and control optimization decision method for multi-stage scheduling collaboration can be realized.
Description
Technical field
The invention belongs to electric power system dispatching operation control technology field, more precisely, the present invention relates to a kind of be suitable for
The method of the online preventive control Optimal Decision-making of multi-stage scheduling composite defense safety and stability in bulk power grid.
Background technology
Because element is numerous in bulk power grid, geographic range is wide, and generally arrange Multi-regulation center is carried out to bulk power grid
Management and running are controlled and managed.Bulk power grid has the advantage transmitted electricity on a large scale, but safety and stability Property comparison is complicated, there is safety
Stable problem regulates and controls the phenomenon that level is interweaved more on a large scale, and the peace under the forecast failure defendd is responsible at single regulation and control center
Full stable problem, on the one hand, possibly cannot be solved by the measure of this regulation and control center direct regulation and control scope, or be passed through completely
The measure of this regulation and control center direct regulation and control scope can ensure that safety and stability, but control cost be far longer than by with bulk power grid in
The cost of other regulation and control center composite defenses；On the other hand, can ensure that by the measure of this regulation and control center direct regulation and control scope
The safety and stability under the forecast failure defendd is responsible at this regulation and control center, but may be responsible for anti-to other regulation and control centers in bulk power grid
Safety and stability under imperial forecast failure is caused than more serious adverse effect.
Existing safety and stability online preventive control Study on Decision-making Method for Optimization does not have for being only one of which regulation and control center in electrical network
There is the management and running control management mode for considering actual bulk power grid.Only one of which is responsible for the regulation and control of safety and stability in hypothesis bulk power grid
Center, by the method bulk power grid is directly applied to, then can only regulate and control central regulators based on all of at different levels each of bulk power grid is covered
Electrical network on-line operation mode, for bulk power grid it is all of it is at different levels each regulation and control centers defence forecast failure collection, pacified
Stablize online preventive control Optimal Decision-making entirely to calculate, amount of calculation is huge, even if all of at different levels each of bulk power grid is regulated and controled into centers
Existing on-line security and stability analysis computing resource whole efficient utilization, cannot also meet wanting for online preventive control real-time
Ask.
Therefore, in order to safety and stability hidden danger is greatly lowered, the advantage that bulk power grid is transmitted electricity on a large scale is given full play to, needs badly and grind
Study carefully the safety and stability online preventive control decision-making technique of bulk power grid multi-stage scheduling composite defense.
The content of the invention
The present invention seeks to：For deficiency of the prior art, with reference to the operation control model at Multi-regulation center, there is provided
A kind of method of the online preventive control Optimal Decision-making of the multi-stage scheduling composite defense safety and stability suitable for bulk power grid, solves existing
Some electricity net safety stable online preventive control Study on Decision-making Method for Optimization do not account for the safety and stability at each regulation and control center at different levels and exist
The problem of the reciprocal effect between line prevention and control Optimal Decision-making, meet in bulk power grid on a large scale, many regulation and control levels are interweaved
Actual demand of the safety and stability problem to multistage multiple regulation and control center composite defense technologies.
The present invention general principle be：Bulk power grid safety and stability problem have on a large scale, many regulation and control levels are interweaved
Characteristic, need to search for Control Measure on a large scale, in many regulation and control level electrical networks, can just find and solve the problems, such as safety and stability
Control Measure, could really realize the optimization of safety and stability Control Measure.By this regulation and control center directly
Higher level regulates and controls the interaction of the power system operating mode data between center and direct subordinate's regulation and control center and prevention and control candidate's measure
Shared, each regulation and control center at different levels only carry out the parallel of safety and stability online evaluation to the forecast failure collection of its direct defenses respectively
Process, then the Control performance standard of prevention and control candidate's measure is interacted between the regulation and control center of tight association it is shared,
The control performance overall target of prevention and control candidate's measure is obtained, then, the control performance based on prevention and control candidate's measure is comprehensive
Close index only carries out respectively the online pre- prevention and control of safety and stability at each regulation and control center at different levels to the forecast failure collection of its direct defenses
The parallel processing of Optimal Decision-making processed, had both realized on a large scale, has regulated and controled to search for Control Measure in level electrical network more, and fully
The computing resource at each regulation and control center at different levels is make use of, bulk power grid multi-stage scheduling operation control management mode is adapted to, big electricity is met
Requirement of the net safety and stability online preventive control decision-making to reliability, precision and real-time.
Specifically, the present invention employs the following technical solutions realization, comprises the steps：
1) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
According to its Real-time Collection or the operation of power networks status information collected, bonding apparatus model and parameter, this regulation and control is generated
On-line operation mode data S of the electrical network of center direct regulation and controli.j, and generate the forecast failure collection of this regulation and control center direct defenses
Fi.jWith the online preventive control candidate measure collection M of direct regulation and controli.j, the online preventive control of this regulation and control center direct regulation and control is excellent
Change measure collection CMi.jIt is set to empty set；
Wherein, i=1,2 ..., I, I represent the sum of the level for regulating and controlling layer in electrical network, and i represents each regulation and control center in electrical network
The level sequence number of residing regulation and control layer, the 1st grade is the superlative degree, and the 2nd grade is the 1st grade of direct subordinate, and the 1st grade straight for the 2nd grade
Connect level, by that analogy, I levels be lowermost level, j=1,2 ..., Ji, JiRepresent and regulate and control the total of center in i-stage regulation and control layer
Number；
After all regulation and control centers complete above-mentioned process, into step 2)；
Regulation and control center in the 1st grade of regulation and control layer only has 1, in the regulation and control center at least 1 of other regulation and control layers at different levels
Individual, the immediate superior regulation and control center at other regulation and control centers has and only 1 in addition to the regulation and control center in the 1st grade of regulation and control layer, respectively
The number at the direct subordinate regulation and control center at regulation and control center is not limited；
Online preventive control candidate's measure collection of each regulation and control center direct regulation and control at different levels of electrical network refers to current operation side
The set of optional prevention and control equipment and its control variables, control direction and controlled amounts maximum under formula, electrical network it is at different levels each
The common factor of the forecast failure collection of individual regulation and control center direct defenses is empty set；
The online preventive control Optimized Measures collection of each regulation and control center direct regulation and control at different levels of electrical network refers to current operation side
The set of the prevention and control equipment and its increment of control variables, control direction, final controlled quentity controlled variable and controlled quentity controlled variable selected under formula, electricity
The common factor that online preventive control candidate's measure of each regulation and control center direct regulation and control at different levels of net integrates is as empty set；
The increment of controlled quentity controlled variable refers to the control that calculated prevention and control equipment and its control variables are often taken turns in iterative process
Amount processed；
2) at the regulation and control center in the 1st grade of regulation and control layer, the current time of operation of power networks is designated as into t0, into step 3)；
3) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the powernet method of operation number of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
According to；
Then, the S based on this regulation and control centeri.j, with reference to the regulation and control center direct regulation and control related to this regulation and control close centre
Powernet running mode data, the running mode data integration carried out towards electricity net safety stable online evaluation is processed, and is generated
The electrical network of electrical network and the regulation and control center direct regulation and control related to this regulation and control close centre including the direct regulation and control of this regulation and control center
In the interior powernet running mode data S ' for carrying out safety and stability online evaluation for this regulation and control centeri.j；
Finally, according to the S ' at this regulation and control centeri.j, for the F at this regulation and control centeri.jCarry out safety and stability online evaluation；
After all regulation and control centers complete above-mentioned process, into step 4)；
When this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, it is described related to this regulation and control close centre
Regulation and control center is all of direct subordinate regulation and control center at this regulation and control center；When this regulation and control center is the tune in other regulation and control layers
During control center, related to this regulation and control close centre regulation and control center include the immediate superior at this regulation and control center regulate and control center,
The all of direct subordinate regulation and control center in addition to this regulation and control center at the immediate superior regulation and control center at this regulation and control center and this regulation and control
The all of direct subordinate regulation and control center at center；
4) at the regulation and control center in the 1st grade of regulation and control layer, the safety and stability for collecting other each regulation and control centers at different levels is online
Assessment result, if each regulation and control center at different levels of electrical network are for the safety and stability online evaluation of the forecast failure collection of its direct defenses
As a result safe and stable operation requirement is all met, then it is assumed that the current operating conditions of electrical network are safety and stability, each regulation and control at different levels
Center all need not take the electrical network of its direct regulation and control Control Measure, method ends, otherwise, into step 5)；
5) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, online preventive control candidate's measure of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
Collection；
Then, by the M at this regulation and control centeri.jAnd related to this regulation and control close centre regulation and control center direct regulation and control
The union of line prevention and control candidate's measure collection, as this regulation and control center calculation F is directed toi.jElectricity net safety stable it is pre- online
The candidate measure collection M ' of anti-control Optimized Measuresi.j；
Finally, based on the safety and stability online evaluation result that this regulation and control center is newest, the M ' at this regulation and control center is calculatedi.j
In each prevention and control candidate's measure in S 'i.jF is directed to downi.jPower grid security and stability Control performance standard；
After all regulation and control centers complete above-mentioned process, into step 6)；
The Control performance standard of prevention and control candidate's measure refers to that power grid security is steady after prevention and control candidate measure enforcement
Determine the ratio of the incrementss of nargin and the control cost of prevention and control candidate's measure；
6) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the safety and stability online preventive control Optimized Measures at the regulation and control center related to this regulation and control close centre are collected
The Control performance standard of each candidate's measure is concentrated in candidate's measure of calculating；
Then, when this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, this regulation and control is calculated by formula (1)
The M at centeri.jIn control performance of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability it is comprehensive
Close index；When this regulation and control center is the regulation and control center in other regulation and control layers, this regulation and control center is calculated by formula (2)
Mi.jIn control performance of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability comprehensively refer to
Mark；
In formula, Ki.jFor Mi.jThe sum of middle prevention and control candidate measure, PIi.j.kFor Mi.jIn k-th prevention and control candidate arrange
It is applied to for Fi.jPower grid security and stability Control performance standard, ui.jImmediate superior for this regulation and control center regulates and controls center
The sequence number in each regulation and control center in regulation and control floor residing for it,For Mi.jIn k-th prevention and control candidate's measure
For for the power grid security and stability of the forecast failure collection of the direct defenses at the immediate superior at this regulation and control center regulation and control center
Control performance standard, Di.jDirect subordinate for this regulation and control center regulates and controls the sum at center, di.j.lFor l-th of this regulation and control center
The directly sequence number in each regulation and control center in regulation and control floor of subordinate's regulation and control center residing for it,For Mi.jMiddle kth
Individual prevention and control candidate measure is used for the anticipation event of the direct defenses at l-th direct subordinate's regulation and control center for this regulation and control center
The Control performance standard of the power grid security and stability of barrier collection, Ni.jFor this regulation and control center immediate superior regulate and control center it is direct under
The sum at level regulation and control center, ni.j.lL-th direct subordinate's regulation and control center for the immediate superior regulation and control center at this regulation and control center exists
The sequence number in each regulation and control center in regulation and control floor residing for it,For Mi.jIn k-th prevention and control candidate's measure
For the anticipation event of the direct defenses at l-th direct subordinate's regulation and control center for the immediate superior at this regulation and control center regulation and control center
The Control performance standard of the power grid security and stability of barrier collection, λuIt is direct in multi-stage scheduling composite defense power grid security and stability
Coordinating factor between the superior and the subordinate's regulation and control center, takes the setting value more than or equal to 1, λnIt is in multi-stage scheduling composite defense electrical network peace
Belong to the coordinating factor between the different regulation and control centers at same immediate superior regulation and control center during total stability, take more than or equal to 1, little
In equal to λuSetting value, PI 'i.j.kFor Mi.jIn k-th prevention and control candidate measure for multi-stage scheduling composite defense electrical network peace
Complete stable control performance overall target；
After all regulation and control centers complete above-mentioned process, into step 7)；
7) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, online preventive control candidate's measure of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
Concentrate each prevention and control candidate measure to be used for the control performance overall target of multi-stage scheduling composite defense electricity net safety stable, obtain
To the M ' at this regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable control
Composite of performance index processed；
Then, if the newest safety and stability online evaluation result in this regulation and control center is unsatisfactory for safe and stable operation requirement,
M ' based on this regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable
Control performance overall target, for the S ' at this regulation and control centeri.j, calculate and meet Fi.jIt is online pre- that lower safe and stable operation is required
Anti- control Optimized Measures collection, as the online preventive control Optimized Measures collection DM of this regulation and control center process to be combinedi.j, otherwise, will
The online preventive control Optimized Measures collection DM of this regulation and control center process to be combinedi.jIt is set to empty set；
After all regulation and control centers complete above-mentioned process, into step 8)；
The online preventive control Optimized Measures collection of the process to be combined includes prevention and control equipment and its control variables, control
Direction processed and controlled quentity controlled variable；
8) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control optimization for collecting the regulation and control center to be combined process related to this regulation and control close centre is arranged
Apply collection；
Then, for the M at this regulation and control centeri.jIn each prevention and control equipment and its control variables, if it is in this regulation and control
The DM at centeri.jAnd the online preventive control Optimized Measures of the regulation and control center to be combined process related to this regulation and control close centre
In 1 set concentrated, then control direction and controlled quentity controlled variable first by the prevention and control equipment and its control variables in the set,
It is added to the CM at this regulation and control centeri.jIn, as the control direction and the increasing of controlled quentity controlled variable of the prevention and control equipment and its control variables
Amount, then by CMi.jIn the prevention and control equipment and its control variables final controlled quentity controlled variable and controlled quentity controlled variable increment sum as new
Final controlled quentity controlled variable；If it is in the DM at this regulation and control centeri.jAnd the regulation and control center to be combined process related to this regulation and control close centre
Concentrate 2 of online preventive control Optimized Measures and with upper set in, and its control direction is all identical in these set, then
First by the maximum in the control direction and controlled quentity controlled variable of prevention and control equipment and its control variables in these set, it is added to
The CM at this regulation and control centeri.jIn, as the prevention and control equipment and its control direction and the increment of controlled quentity controlled variable of control variables, then
By CMi.jIn the final controlled quentity controlled variable of the prevention and control equipment and its control variables and the increment sum of controlled quentity controlled variable as new final
Controlled quentity controlled variable；
After all regulation and control centers complete above-mentioned process, into step 9)；
9) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control Optimized Measures of the regulation and control center direct regulation and control related to this regulation and control close centre are collected
Collection；
Then, according to the CM at this regulation and control centeri.jAnd the regulation and control center direct regulation and control related to this regulation and control close centre
Online preventive control Optimized Measures concentrate the control direction and the increment of controlled quentity controlled variable of all prevention and control equipment and its control variables,
S ' to this regulation and control centeri.jIt is adjusted and updates,
Finally, the S ' after updating for adjustmenti.j, carry out for Fi.jSafety and stability online evaluation；
After all regulation and control centers complete above-mentioned process, into step 10)；
10) at the regulation and control center in the 1st grade of regulation and control layer, the safety and stability for collecting other each regulation and control centers at different levels is online
Assessment result, if the newest safety and stability online evaluation result in each regulation and control center at different levels of electrical network all meets electricity net safety stable
Service requirement, then by the CM at each regulation and control center at different levelsi.jAs the safety and stability online preventive control optimization of multi-stage scheduling collaboration
Measure, method ends；Otherwise, into step 11)；
11) at the regulation and control center in the 1st grade of regulation and control layer, if the current time of operation of power networks and t0Difference less than setting
Duration, into step 12), otherwise it is assumed that safety and stability online preventive control Optimized Measures of the search less than multi-stage scheduling collaboration,
Method ends.
12) at each regulation and control center at different levels of electrical network, first, from Mi.jMiddle rejecting and CMi.jMiddle prevention and control equipment and its
Candidate's measure that control variables is identical but control direction is contrary, and from Mi.jMiddle rejecting and CMi.jMiddle prevention and control equipment and its
Candidate's measure that control variables is identical and control direction is identical but controlled amounts maximum is equal with the increment of controlled quentity controlled variable, then by Mi.j
In with CMi.jMiddle prevention and control equipment and its control variables is identical and controlled amounts maximum of control direction identical candidate's measure
It is set to the difference of the controlled amounts maximum and controlled quentity controlled variable increment, return to step 5), carry out next round calculating.
Beneficial effects of the present invention are as follows：The present invention based on this regulation and control center directly higher level regulation and control center and it is direct under
The controlling of power system operating mode data, prevention and control candidate measure and prevention and control candidate's measure between level regulation and control center
The interaction of energy index is shared, and meets the requirement that bulk power grid safety and stability characteristic is calculated safety and stability, it is ensured that bulk power grid safety
The reliability and precision of stable online evaluation and Control Measure optimum results；It is only right respectively using each regulation and control center at different levels
The forecast failure collection of its direct defenses carries out the parallel processing strategy of safety and stability online evaluation and Control Measure optimization, fills
Divide the computing resource that make use of each regulation and control center at different levels, adapt to bulk power grid multi-stage scheduling operation control management mode, satisfaction is big
Requirement of the electricity net safety stable online preventive control decision-making to real-time.
Description of the drawings
The flow chart of the step of Fig. 1 is the inventive method 1-7.
The flow chart of the step of Fig. 2 is the inventive method 8-12.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings.
Step 1 is described in Fig. 1,1) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
According to its Real-time Collection or the operation of power networks status information collected, bonding apparatus model and parameter, this regulation and control is generated
On-line operation mode data S of the electrical network of center direct regulation and controli.j, and generate the forecast failure collection of this regulation and control center direct defenses
Fi.jWith the online preventive control candidate measure collection M of direct regulation and controli.j, the online preventive control of this regulation and control center direct regulation and control is excellent
Change measure collection CMi.jIt is set to empty set；
Wherein, i=1,2 ..., I, I represent the sum of the level for regulating and controlling layer in electrical network, and i represents each regulation and control center in electrical network
The level sequence number of residing regulation and control layer, the 1st grade is the superlative degree, and the 2nd grade is the 1st grade of direct subordinate, and the 1st grade straight for the 2nd grade
Connect level, by that analogy, I levels be lowermost level, j=1,2 ..., Ji, JiRepresent and regulate and control the total of center in i-stage regulation and control layer
Number；
After all regulation and control centers complete above-mentioned process, into step 2).
Regulation and control center in the 1st grade of regulation and control layer only has 1, in the regulation and control center at least 1 of other regulation and control layers at different levels
Individual, the immediate superior regulation and control center at other regulation and control centers has and only 1 in addition to the regulation and control center in the 1st grade of regulation and control layer, respectively
The number at the direct subordinate regulation and control center at regulation and control center is not limited；
Online preventive control candidate's measure collection of each regulation and control center direct regulation and control at different levels of electrical network refers to current operation side
The set of optional prevention and control equipment and its control variables, control direction and controlled amounts maximum under formula, electrical network it is at different levels each
The common factor of the forecast failure collection of individual regulation and control center direct defenses is empty set；
The online preventive control Optimized Measures collection of each regulation and control center direct regulation and control at different levels of electrical network refers to current operation side
The set of the prevention and control equipment and its increment of control variables, control direction, final controlled quentity controlled variable and controlled quentity controlled variable selected under formula.It is right
In continuously adjustable prevention and control candidate's measure, for example, increase certain generated power and exert oneself, then prevention and control equipment is generating
Machine name, generated power, control direction are to increase, controlled amounts maximum is that the generator is (logical within prevention and control effective time
It is standing to be set to 10 minutes) it is adjustable to active maximum and the difference of its currency of exerting oneself；For the prevention and control of discrete adjustment
Operation is thrown/is moved back in candidate's measure, such as equipment, then prevention and control equipment is equipment (including multiple equipment) name, switch, control direction
To throw/moving back, controlled amounts maximum may be configured as 1.The online preventive control of each regulation and control center direct regulation and control at different levels of electrical network is waited
The common factor that measure integrates is selected as empty set；
The increment of controlled quentity controlled variable refers to the control that calculated prevention and control equipment and its control variables are often taken turns in iterative process
Amount processed.
Step 2 is described in Fig. 1, at the regulation and control center in the 1st grade of regulation and control layer, the current time of operation of power networks is remembered
For t0, into step 3).
Step 3 is described in Fig. 1, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the powernet method of operation number of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
According to；
Then, the S based on this regulation and control centeri.j, with reference to the regulation and control center direct regulation and control related to this regulation and control close centre
Powernet running mode data, the running mode data integration carried out towards electricity net safety stable online evaluation is processed, and is generated
The electrical network of electrical network and the regulation and control center direct regulation and control related to this regulation and control close centre including the direct regulation and control of this regulation and control center
In the interior powernet running mode data S ' for carrying out safety and stability online evaluation for this regulation and control centeri.j；
Finally, according to the S ' at this regulation and control centeri.j, for the F at this regulation and control centeri.jCarry out safety and stability online evaluation；
After all regulation and control centers complete above-mentioned process, into step 4)；
When this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, it is described related to this regulation and control close centre
Regulation and control center is all of direct subordinate regulation and control center at this regulation and control center；When this regulation and control center is the tune in other regulation and control layers
During control center, related to this regulation and control close centre regulation and control center include the immediate superior at this regulation and control center regulate and control center,
The all of direct subordinate regulation and control center in addition to this regulation and control center at the immediate superior regulation and control center at this regulation and control center and this regulation and control
The all of direct subordinate regulation and control center at center.
Step 4 is described in Fig. 1, at the regulation and control center in the 1st grade of regulation and control layer, in collecting other each regulation and control at different levels
The safety and stability online evaluation result of the heart, if each regulation and control center at different levels of electrical network are for the forecast failure collection of its direct defenses
Safety and stability online evaluation result all meets safe and stable operation requirement, then it is assumed that the current operating conditions of electrical network are safety and stability
, each regulation and control center at different levels all need not take the electrical network of its direct regulation and control Control Measure, and method ends are no
Then, into step 5).
Step 5 is described in Fig. 1, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, online preventive control candidate's measure of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
Collection；
Then, by the M at this regulation and control centeri.jAnd related to this regulation and control close centre regulation and control center direct regulation and control
The union of line prevention and control candidate's measure collection, as this regulation and control center calculation F is directed toi.jElectricity net safety stable it is pre- online
The candidate measure collection M ' of anti-control Optimized Measuresi.j；
Finally, based on the safety and stability online evaluation result that this regulation and control center is newest, the M ' at this regulation and control center is calculatedi.j
In each prevention and control candidate's measure in S 'i.jF is directed to downi.jPower grid security and stability Control performance standard；
After all regulation and control centers complete above-mentioned process, into step 6).
The Control performance standard of the prevention and control candidate measure refers to electrical network peace after prevention and control candidate measure enforcement
The incrementss of full stability margin and the ratio of the control cost of prevention and control candidate's measure.
Step 6 is described in Fig. 1, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the safety and stability online preventive control Optimized Measures at the regulation and control center related to this regulation and control close centre are collected
The Control performance standard of each candidate's measure is concentrated in candidate's measure of calculating；
Then, when this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, this regulation and control is calculated by formula (1)
The M at centeri.jIn control performance of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability it is comprehensive
Close index；When this regulation and control center is the regulation and control center in other regulation and control layers, this regulation and control center is calculated by formula (2)
Mi.jIn control performance of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability comprehensively refer to
Mark；
In formula, Ki.jFor Mi.jThe sum of middle prevention and control candidate measure, PIi.j.kFor Mi.jIn k-th prevention and control candidate arrange
It is applied to for Fi.jPower grid security and stability Control performance standard, ui.jImmediate superior for this regulation and control center regulates and controls center
The sequence number in each regulation and control center in regulation and control floor residing for it,For Mi.jIn k-th prevention and control candidate's measure
For for the power grid security and stability of the forecast failure collection of the direct defenses at the immediate superior at this regulation and control center regulation and control center
Control performance standard, Di.jDirect subordinate for this regulation and control center regulates and controls the sum at center, di.j.lFor l-th of this regulation and control center
The directly sequence number in each regulation and control center in regulation and control floor of subordinate's regulation and control center residing for it,For Mi.jMiddle kth
Individual prevention and control candidate measure is used for the anticipation event of the direct defenses at l-th direct subordinate's regulation and control center for this regulation and control center
The Control performance standard of the power grid security and stability of barrier collection, Ni.jFor this regulation and control center immediate superior regulate and control center it is direct under
The sum at level regulation and control center, ni.j.lL-th direct subordinate's regulation and control center for the immediate superior regulation and control center at this regulation and control center exists
The sequence number in each regulation and control center in regulation and control floor residing for it,For Mi.jIn k-th prevention and control candidate's measure
For the anticipation event of the direct defenses at l-th direct subordinate's regulation and control center for the immediate superior at this regulation and control center regulation and control center
The Control performance standard of the power grid security and stability of barrier collection, λuIt is direct in multi-stage scheduling composite defense power grid security and stability
Coordinating factor between the superior and the subordinate's regulation and control center, takes the setting value (being usually arranged as 1.5) more than or equal to 1, λnIt is in multistage tune
Belong to during degree composite defense power grid security and stability coordination between the different regulation and control centers at same immediate superior regulation and control center because
Son, takes more than or equal to 1, less than or equal to λuSetting value (being usually arranged as 1.25), PI 'i.j.kFor Mi.jIn k-th prevention and control
Candidate's measure is used for the control performance overall target of multi-stage scheduling composite defense electricity net safety stable.
After all regulation and control centers complete above-mentioned process, into step 7).
Step 7 is described in Fig. 1, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, online preventive control candidate's measure of the regulation and control center direct regulation and control related to this regulation and control close centre is collected
Concentrate each prevention and control candidate measure to be used for the control performance overall target of multi-stage scheduling composite defense electricity net safety stable, obtain
To the M ' at this regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable control
Composite of performance index processed；
Then, if the newest safety and stability online evaluation result in this regulation and control center is unsatisfactory for safe and stable operation requirement,
M ' based on this regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable
Control performance overall target, for the S ' at this regulation and control centeri.j, calculate and meet Fi.jIt is online pre- that lower safe and stable operation is required
Anti- control Optimized Measures collection, as the online preventive control Optimized Measures collection DM of this regulation and control center process to be combinedi.j, otherwise, will
The online preventive control Optimized Measures collection DM of this regulation and control center process to be combinedi.jIt is set to empty set.
After all regulation and control centers complete above-mentioned process, into step 8)；
The online preventive control Optimized Measures collection of the process to be combined includes prevention and control equipment and its control variables, control
Direction processed and controlled quentity controlled variable.
Step 8 is described in Fig. 2, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control optimization for collecting the regulation and control center to be combined process related to this regulation and control close centre is arranged
Apply collection；
Then, for the M at this regulation and control centeri.jIn each prevention and control equipment and its control variables, if it is in this regulation and control
The DM at centeri.jAnd the online preventive control Optimized Measures of the regulation and control center to be combined process related to this regulation and control close centre
In 1 set concentrated, then control direction and controlled quentity controlled variable first by the prevention and control equipment and its control variables in the set,
It is added to the CM at this regulation and control centeri.jIn, as the control direction and the increasing of controlled quentity controlled variable of the prevention and control equipment and its control variables
Amount, then by CMi.jIn the prevention and control equipment and its control variables final controlled quentity controlled variable and controlled quentity controlled variable increment sum as new
Final controlled quentity controlled variable；If it is in the DM at this regulation and control centeri.jAnd the regulation and control center to be combined process related to this regulation and control close centre
Concentrate 2 of online preventive control Optimized Measures and with upper set in, and its control direction is all identical in these set, then
First by the maximum in the control direction and controlled quentity controlled variable of prevention and control equipment and its control variables in these set, it is added to
The CM at this regulation and control centeri.jIn, as the prevention and control equipment and its control direction and the increment of controlled quentity controlled variable of control variables, then
By CMi.jIn the final controlled quentity controlled variable of the prevention and control equipment and its control variables and the increment sum of controlled quentity controlled variable as new final
Controlled quentity controlled variable.
After all regulation and control centers complete above-mentioned process, into step 9)；
Step 9 is described in Fig. 2, at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control Optimized Measures of the regulation and control center direct regulation and control related to this regulation and control close centre are collected
Collection；
Then, according to the CM at this regulation and control centeri.jAnd the regulation and control center direct regulation and control related to this regulation and control close centre
Online preventive control Optimized Measures concentrate the control direction and the increment of controlled quentity controlled variable of all prevention and control equipment and its control variables,
S ' to this regulation and control centeri.jIt is adjusted and updates,
Finally, the S ' after updating for adjustmenti.j, carry out for Fi.jSafety and stability online evaluation.
After all regulation and control centers complete above-mentioned process, into step 10).
Step 10 is described in Fig. 2, at the regulation and control center in the 1st grade of regulation and control layer, collects other each regulation and control at different levels
The safety and stability online evaluation result at center, if the newest safety and stability online evaluation result in each regulation and control center at different levels of electrical network
All meet power network safety operation requirement, then by the CM at each regulation and control center at different levelsi.jIt is steady as the safety of multi-stage scheduling collaboration
Determine online preventive control Optimized Measures, method ends；Otherwise, into step 11).
Step 11 is described in Fig. 2, at the regulation and control center in the 1st grade of regulation and control layer, if the current time of operation of power networks
With t0Difference less than setting duration (being usually arranged as 5 minutes), into step 12), otherwise it is assumed that search less than multi-stage scheduling
The safety and stability online preventive control Optimized Measures of collaboration, method ends.
Step 12 is described in Fig. 2, at each regulation and control center at different levels of electrical network, first, from Mi.jMiddle rejecting and CMi.jIn
Prevention and control equipment and its candidate's measure that control variables is identical but control direction is contrary, and from Mi.jMiddle rejecting and CMi.jIn
Prevention and control equipment and its control variables is identical and control direction is identical but controlled amounts maximum is equal with the increment of controlled quentity controlled variable
Candidate's measure, then by Mi.jIn with CMi.jMiddle prevention and control equipment and its control variables is identical and control direction identical candidate arranges
The controlled amounts maximum applied is set to the difference of the controlled amounts maximum and controlled quentity controlled variable increment, return to step 5), carry out next round
Calculate.
Although the present invention is disclosed as above with preferred embodiment, embodiment is not for limiting the present invention's.Not
Depart from the spirit and scope of the present invention, any equivalence changes done or retouching also belong to the protection domain of the present invention.Cause
The content that this protection scope of the present invention should be defined with claims hereof is as standard.
Claims (1)
1. the safety and stability online preventive control Study on Decision-making Method for Optimization that electrical network multi-stage scheduling is cooperateed with, it is characterised in that including following
Step：
1) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
According to its Real-time Collection or the operation of power networks status information collected, bonding apparatus model and parameter, this regulation and control center is generated
On-line operation mode data S of the electrical network of direct regulation and controli.j, and generate the forecast failure collection F of this regulation and control center direct defensesi.jWith
The online preventive control candidate measure collection M of direct regulation and controli.j, the online preventive control optimization of this regulation and control center direct regulation and control is arranged
Apply collection CMi.jIt is set to empty set；
Wherein, i=1,2 ..., I, I represent the sum of the level for regulating and controlling layer in electrical network, and i is represented in electrical network residing for each regulation and control center
Regulation and control layer level sequence number, the 1st grade is the superlative degree, and the 2nd grade is the 1st grade of direct subordinate, and the 1st grade on the 2nd grade direct
Level, by that analogy, I levels be lowermost level, j=1,2 ..., Ji, JiRepresent the sum at the regulation and control center for regulating and controlling layer in i-stage；
After all regulation and control centers complete above-mentioned process, into step 2)；
Regulation and control center in the 1st grade of regulation and control layer only has 1, at least 1, the regulation and control center of other regulation and control layers at different levels, removes
There is and only 1 the immediate superior regulation and control center at other regulation and control centers, outside regulation and control center in the 1st grade of regulation and control layer in each regulation and control
The number at the direct subordinate regulation and control center of the heart is not limited；
Online preventive control candidate's measure collection of each regulation and control center direct regulation and control at different levels of electrical network is referred under the current method of operation
The set of optional prevention and control equipment and its control variables, control direction and controlled amounts maximum, each tune at different levels of electrical network
The common factor of the forecast failure collection of control center direct defenses is empty set；
The online preventive control Optimized Measures collection of each regulation and control center direct regulation and control at different levels of electrical network is referred under the current method of operation
The set of selected prevention and control equipment and its increment of control variables, control direction, final controlled quentity controlled variable and controlled quentity controlled variable, electrical network
The common factor that online preventive control candidate's measure of each regulation and control center direct regulation and control at different levels integrates is as empty set；
The increment of controlled quentity controlled variable refers to the controlled quentity controlled variable that calculated prevention and control equipment and its control variables are often taken turns in iterative process；
2) at the regulation and control center in the 1st grade of regulation and control layer, the current time of operation of power networks is designated as into t0, into step 3)；
3) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the powernet running mode data of the regulation and control center direct regulation and control related to this regulation and control close centre is collected；
Then, the S based on this regulation and control centeri.j, with reference to the electrical network of the regulation and control center direct regulation and control related to this regulation and control close centre
On-line operation mode data, the running mode data integration carried out towards electricity net safety stable online evaluation is processed, and generation includes
Including the electrical network of this regulation and control center direct regulation and control and the electrical network of the regulation and control center direct regulation and control related to this regulation and control close centre
The powernet running mode data S ' for carrying out safety and stability online evaluation for this regulation and control centeri.j；
Finally, according to the S ' at this regulation and control centeri.j, for the F at this regulation and control centeri.jCarry out safety and stability online evaluation；
After all regulation and control centers complete above-mentioned process, into step 4)；
When this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, the regulation and control related to this regulation and control close centre
Center is all of direct subordinate regulation and control center at this regulation and control center；In this regulation and control center is the regulation and control in other regulation and control layers
During the heart, the regulation and control center related to this regulation and control close centre includes immediate superior regulation and control center, this tune at this regulation and control center
The all of direct subordinate regulation and control center in addition to this regulation and control center and this regulation and control center at the immediate superior regulation and control center at control center
All of direct subordinate regulation and control center；
4) at the regulation and control center in the 1st grade of regulation and control layer, the safety and stability online evaluation at other each regulation and control centers at different levels is collected
As a result, if each regulation and control center at different levels of electrical network are directed to the safety and stability online evaluation result of the forecast failure collection of its direct defenses
All meet safe and stable operation requirement, then it is assumed that the current operating conditions of electrical network are safety and stability, each regulation and control center at different levels
Control Measure, method ends, otherwise, into step 5 all need not be taken the electrical network of its direct regulation and control)；
5) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, online preventive control candidate's measure collection of the regulation and control center direct regulation and control related to this regulation and control close centre is collected；
Then, by the M at this regulation and control centeri.jAnd the regulation and control center direct regulation and control related to this regulation and control close centre is online pre-
The union of anti-control candidate's measure collection, as this regulation and control center calculation F is directed toi.jThe online pre- prevention and control of electricity net safety stable
The candidate measure collection M ' of Optimized Measures processedi.j；
Finally, based on the safety and stability online evaluation result that this regulation and control center is newest, the M ' at this regulation and control center is calculatedi.jIn it is each
Individual prevention and control candidate measure is in S 'i.jF is directed to downi.jPower grid security and stability Control performance standard；
After all regulation and control centers complete above-mentioned process, into step 6)；
The Control performance standard of prevention and control candidate's measure refers to that electricity net safety stable is abundant after prevention and control candidate measure enforcement
The ratio of the incrementss of degree and the control cost of prevention and control candidate's measure；
6) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the safety and stability online preventive control Optimized Measures for collecting the regulation and control center related to this regulation and control close centre are calculated
Candidate's measure concentrate the Control performance standard of each candidate's measure；
Then, when this regulation and control center be in the 1st grade regulation and control layer regulation and control center when, this regulation and control center is calculated by formula (1)
Mi.jIn control performance of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability comprehensively refer to
Mark；When this regulation and control center is the regulation and control center in other regulation and control layers, the M at this regulation and control center is calculated by formula (2)i.jIn
Control performance overall target of each prevention and control candidate measure in multi-stage scheduling composite defense power grid security and stability；
In formula, Ki.jFor Mi.jThe sum of middle prevention and control candidate measure, PIi.j.kFor Mi.jIn k-th prevention and control candidate measure use
In for Fi.jPower grid security and stability Control performance standard, ui.jImmediate superior for this regulation and control center regulates and controls center at it
The sequence number in each regulation and control center in residing regulation and control floor,For Mi.jIn k-th prevention and control candidate measure use
In the control of the power grid security and stability of the forecast failure collection of the direct defenses at the immediate superior regulation and control center for this regulation and control center
Performance indications processed, Di.jDirect subordinate for this regulation and control center regulates and controls the sum at center, di.j.lL-th for this regulation and control center is straight
The sequence number in each regulation and control center in regulation and control floor of subordinate's regulation and control center residing for it is connect,For Mi.jIn k-th
Prevention and control candidate measure is used for the forecast failure of the direct defenses at l-th direct subordinate's regulation and control center for this regulation and control center
The Control performance standard of the power grid security and stability of collection, Ni.jImmediate superior for this regulation and control center regulates and controls the direct subordinate at center
The sum at regulation and control center, ni.j.lImmediate superior for this regulation and control center regulates and controls l-th direct subordinate's regulation and control center at center at it
The sequence number in each regulation and control center in residing regulation and control floor,For Mi.jIn k-th prevention and control candidate measure use
In the forecast failure of the direct defenses at l-th direct subordinate's regulation and control center at the immediate superior regulation and control center for this regulation and control center
The Control performance standard of the power grid security and stability of collection, λuIt is on direct in multi-stage scheduling composite defense power grid security and stability
Coordinating factor between subordinate's regulation and control center, takes the setting value more than or equal to 1, λnIt is in multi-stage scheduling composite defense power grid security
Belong to the coordinating factor between the different regulation and control centers at same immediate superior regulation and control center during stability, take more than or equal to 1, be less than
Equal to λuSetting value, PI 'i.j.kFor Mi.jIn k-th prevention and control candidate measure be used for multi-stage scheduling composite defense power grid security
Stable control performance overall target；
After all regulation and control centers complete above-mentioned process, into step 7)；
7) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control candidate measure for collecting the regulation and control center direct regulation and control related to this regulation and control close centre is concentrated
Each prevention and control candidate measure is used for the control performance overall target of multi-stage scheduling composite defense electricity net safety stable, obtains this
The M ' at regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable controlling
Can overall target；
Then, if the newest safety and stability online evaluation result in this regulation and control center is unsatisfactory for safe and stable operation requirement, it is based on
The M ' at this regulation and control centeri.jIn each prevention and control candidate measure be used for multi-stage scheduling composite defense electricity net safety stable control
Composite of performance index, for the S ' at this regulation and control centeri.j, calculate and meet Fi.jThe online pre- prevention and control that lower safe and stable operation is required
Optimized Measures collection processed, as the online preventive control Optimized Measures collection DM of this regulation and control center process to be combinedi.j, otherwise, this is adjusted
The online preventive control Optimized Measures collection DM of control center process to be combinedi.jIt is set to empty set；
After all regulation and control centers complete above-mentioned process, into step 8)；
The online preventive control Optimized Measures collection of the process to be combined includes prevention and control equipment and its control variables, controlling party
To and controlled quentity controlled variable；
8) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control Optimized Measures of the regulation and control center to be combined process related to this regulation and control close centre are collected
Collection；
Then, for the M at this regulation and control centeri.jIn each prevention and control equipment and its control variables, if it is at this regulation and control center
DMi.jAnd the online preventive control Optimized Measures of the regulation and control center to be combined process related to this regulation and control close centre are concentrated
1 set in, then control direction and controlled quentity controlled variable first by the prevention and control equipment and its control variables in the set is added
To the CM at this regulation and control centeri.jIn, as the prevention and control equipment and its control direction and the increment of controlled quentity controlled variable of control variables,
Again by CMi.jIn the final controlled quentity controlled variable of the prevention and control equipment and its control variables and the increment sum of controlled quentity controlled variable as it is new most
Whole controlled quentity controlled variable；If it is in the DM at this regulation and control centeri.jAnd the regulation and control center to be combined process related to this regulation and control close centre
Concentrate 2 of online preventive control Optimized Measures and with upper set in, and its control direction is all identical in these set, then first
By the maximum in the control direction and controlled quentity controlled variable of prevention and control equipment and its control variables in these set, this is added to
The CM at regulation and control centeri.jIn, as the prevention and control equipment and its control direction and the increment of controlled quentity controlled variable of control variables, then will
CMi.jIn the final controlled quentity controlled variable of the prevention and control equipment and its control variables and the increment sum of controlled quentity controlled variable as new final control
Amount processed；
After all regulation and control centers complete above-mentioned process, into step 9)；
9) at each regulation and control center at different levels of electrical network, following process is carried out respectively：
First, the online preventive control Optimized Measures collection of the regulation and control center direct regulation and control related to this regulation and control close centre is collected；
Then, according to the CM at this regulation and control centeri.jAnd the regulation and control center direct regulation and control related to this regulation and control close centre is online
Prevention and control Optimized Measures concentrate the control direction and the increment of controlled quentity controlled variable of all prevention and control equipment and its control variables, to this
The S ' at regulation and control centeri.jIt is adjusted and updates,
Finally, the S ' after updating for adjustmenti.j, carry out for Fi.jSafety and stability online evaluation；
After all regulation and control centers complete above-mentioned process, into step 10)；
10) at the regulation and control center in the 1st grade of regulation and control layer, the safety and stability online evaluation at other each regulation and control centers at different levels is collected
As a result, if the newest safety and stability online evaluation result in each regulation and control center at different levels of electrical network all meets power network safety operation
Require, then by the CM at each regulation and control center at different levelsi.jSafety and stability online preventive control optimization as multi-stage scheduling collaboration is arranged
Apply, method ends；Otherwise, into step 11)；
11) at the regulation and control center in the 1st grade of regulation and control layer, if the current time of operation of power networks and t0Difference less than setting duration,
Into step 12), otherwise it is assumed that safety and stability online preventive control Optimized Measures of the search less than multi-stage scheduling collaboration, terminate
This method；
12) at each regulation and control center at different levels of electrical network, first, from Mi.jMiddle rejecting and CMi.jMiddle prevention and control equipment and its control
Candidate's measure that variable is identical but control direction is contrary, and from Mi.jMiddle rejecting and CMi.jMiddle prevention and control equipment and its control
Candidate's measure that variable is identical and control direction is identical but controlled amounts maximum is equal with the increment of controlled quentity controlled variable, then by Mi.jIn with
CMi.jMiddle prevention and control equipment and its control variables is identical and controlled amounts maximum of control direction identical candidate's measure is arranged
For the controlled amounts maximum and the difference of controlled quentity controlled variable increment, return to step 5), carry out next round calculating.
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