CN105893714B - Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system - Google Patents

Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system Download PDF

Info

Publication number
CN105893714B
CN105893714B CN201610340787.5A CN201610340787A CN105893714B CN 105893714 B CN105893714 B CN 105893714B CN 201610340787 A CN201610340787 A CN 201610340787A CN 105893714 B CN105893714 B CN 105893714B
Authority
CN
China
Prior art keywords
control
simulation
information
power
trend
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610340787.5A
Other languages
Chinese (zh)
Other versions
CN105893714A (en
Inventor
唐永红
李旻
尹琦
徐琳
姜振超
藤予非
常政威
蒲维
丁睿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan University
Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
Original Assignee
Sichuan University
Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan University, Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd filed Critical Sichuan University
Priority to CN201610340787.5A priority Critical patent/CN105893714B/en
Publication of CN105893714A publication Critical patent/CN105893714A/en
Application granted granted Critical
Publication of CN105893714B publication Critical patent/CN105893714B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00Details relating to CAD techniques
    • G06F2111/04Constraint-based CAD
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation

Abstract

The invention discloses based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system comprising the trend section information for the practical area power grid that Bulk power system simulation system is chosen from the intelligent measurement library for being stored with multiple groups case is sent to automatic voltage control system;If automatic voltage control system generates corresponding control strategy and is sent to Bulk power system simulation system there are voltage or power are out-of-limit in trend section information, control manipulation is carried out to analogue system respective electric equipment, is returned to its electric parameter in normal range (NR);To the same method of operation, assessment system is sent by trend section information, corresponding control strategy is generated by assessment system, and calculate corresponding evaluation index, the effect of optimization of automatic voltage control system control strategy, control efficiency and operability is assessed.

Description

Based on the detection of automatic voltage control system closed loop and assessment under Bulk power system simulation system Method
Technical field
The present invention relates to Simulating technique in Electric Power System, and in particular to based on the automatism voltage control under Bulk power system simulation system The detection of system closed loop and appraisal procedure.
Background technique
The change of expansion and energy resource structure recently as power grid scale, the structure of electric power networks is also increasingly complicated, from Dynamic voltage control system (automatic voltage control, AVC) is the most master-hand of the idle control development of current voltage Section, can be realized the closed-loop control of system, be to dispatch the advanced embodiment of system automation, and at home and abroad achieve extensive Using.In actual motion operation, the control effect for having quite a few powerless control system to be satisfied in order to obtain is generally required The repeated multiple times adjusting parameter of operations staff takes considerable time that energy also hardly results in satisfied optimum results sometimes.
And also there are many problems in operation in the area power grid of certain automatic voltage control systems that put into operation, such as when negative When lotus is changed tempestuously, if the control strategy that automatic voltage control system provides is unreasonable, it may result in prominent in load So increase or reduce when capacitor or reactor frequently act and carry out maintenance voltage stability, this for capacitor/ The service life of reactor is unfavorable;When power grid occur in the process of running voltage out-of-limit, it is idle shortage or idle foldback, automatically Voltage control system, which can provide some control strategies, to be come so that system restoring running is normal, and unreasonable idle strategy can be to system Element even network impacts.
Up to the present, there are no a kind of idle control equipment detection platform of good bulk power grid and detection means, therefore Carry out the AVC closed loop based on Bulk power system simulation system and detects experimental study, it is idle to control area's power grid busbar voltage and region Power-balance, which carries out assessment, has realistic meaning, and the only operation of automatic voltage control system and electric network reactive-load facility planning does not mention For scientific basis, and to accelerate the building of Intelligent automatic voltage control system to provide reliable technical support.
Summary of the invention
For above-mentioned deficiency in the prior art, the automatic electric under the system provided by the invention based on Bulk power system simulation is voltage-controlled System closed loop processed detection and appraisal procedure being capable of effect of optimization to the control strategy that automatic voltage control system provides, control effect Rate and operability are assessed.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:
The detection of automatic voltage control system closed loop and appraisal procedure under a kind of system based on Bulk power system simulation is provided, including Following steps:
Bulk power system simulation system chooses the tide of any practical area power grid from the intelligent measurement library for being stored with multiple groups case Flow section information, and the trend section information is sent to dispatch automated system by intermediate communication data interface module Automatic voltage control system;
Automatic voltage control system judges whether are voltage in the actual operation parameters of trend section information or power factor Beyond setting limit value;
If automatic voltage control system generates corresponding control strategy, and passes through intermediate communication number beyond setting limit value Control strategy is sent to Bulk power system simulation system according to interface module;
Bulk power system simulation system carries out control manipulation, more new trend section information to respective electric equipment according to control strategy For new trend section information, and automatic voltage control system is sent to by intermediate communication data interface module;
Automatic voltage control system judges that voltage or power factor in the actual operation parameters of new trend section information are It is no to exceed setting limit value;
With regard under the same method of operation, trend section information is sent to assessment system by Bulk power system simulation system;
Assessment system generates assessment control strategy using numerical optimisation algorithms according to actual operation parameters, and according to its generation Assessment control strategy from power grid index, stand in index, AVC operating index and Policy evaluation index to automatic voltage control system Effect of optimization, control efficiency and the operability of the control strategy of generation are assessed.
The invention has the benefit that this method is using the trend section information of any practical area power grid as emulation pair As when the voltage of corresponding electrical equipment in trend section information actual operation parameters or power appearance are more prescribed a time limit, by automatic The control strategy that voltage control system gives power grid of sening as an envoy to reach normal operating status;
Reach normal to power grid of sening as an envoy to according to the trend section information of same practical area power grid using assessment system later Operating status assessment control strategy, and using assessment control strategy go the effect of optimization to control strategy, control efficiency and Operability is assessed;
This method is applied in the operation of actual electric network, and dispatcher can be selected by assessment result by regulating and controlling on a small quantity Operation can make power grid reach the control strategy of normal operating condition, to improve the service life of component in power grid, together When can also help to improve area power grid automatic voltage control system to the control effect of voltage, help dispatcher to existing The assessment of AVC control strategy progress reasonability and implementable row.
Detailed description of the invention
Flow chart of the Fig. 1 based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system.
Fig. 2 is the grid structure figure of any area network system.
Fig. 3 is numerical optimisation algorithms in the optimization algorithm and control algolithm and assessment system of automatic voltage control system with regard to certain Region voltage figure after being acted under one method of operation.
Fig. 4 is numerical optimisation algorithms in the optimization algorithm and control algolithm and assessment system of automatic voltage control system with regard to certain Critical point power factor figure after being acted under one method of operation.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art, As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy See, all are using the innovation and creation of present inventive concept in the column of protection.
It shows with reference to Fig. 1, Fig. 1 based on the detection of automatic voltage control system closed loop and assessment under Bulk power system simulation system The flow chart of method, as shown in Figure 1, this method 100 includes step 101 to step 107:
In a step 101, Bulk power system simulation system chooses any reality from the intelligent measurement library for being stored with multiple groups case The trend section information of area power grid, and the trend section information is sent to certainly by intermediate communication data interface module Dynamic voltage control system.
The above-mentioned Bulk power system simulation system referred to includes system configuration module, basic data library module, real-time data base mould Block and computing module;
Wherein, system configuration module for the case in intelligent measurement library login management and;Basic data library module is used Electric system is completed in storage basic data (basic data includes line parameter circuit value, system component parameter, system partitioning information etc.) The voltage of each node, power distribution situation Load flow calculation, and calculation of tidal current is stored.
Real time data library module is used to store the real-time running data of power distribution network generation, and realizes leading for real-time running data Enter, export and real-time running data and basic data existing for data difference, and the movement plan that the AVC system of storage is provided Displacement information (displacement information is capacitor switching gear position operation or the bit manipulation of transformer shift) in slightly is sent to calculating mould Block carries out topological analysis and dynamic parallel calculates;And
Computing module is established intelligent measurement library and load fluctuation case library, is simulated various for completing dynamic parallel calculating Grid operation mode or perturbation scheme.Here disturbance refers to that electric load disturbs, such as impact load etc., is parallel exactly to transmit Data use parallel mode.
Before carrying out closed loop detection and appraisal procedure for the first time, need to construct in Bulk power system simulation system comprising multiple groups case The intelligent measurement library of example, a case of the trend section information of practical area power grid therein in intelligent measurement library, And intelligent measurement library is constructed in the following ways:
Being first directed to the trend section information of the practical area power grid based on CIM format, (information of importing is from practical existing The information of field acquisition comprising various system parameters have device parameter, such as route, transformer, operating parameter such as voltage, electricity Stream, active and reactive etc.);
Pro with real-time analytic operation can be identified by being parsed into Bulk power system simulation system after data format conversion module (data of importing will form available file format in ADPSS, that is, electric system full digital trigger technique simulator to project file, i.e., The file format of pro form is mainly handled corresponding data according to pro project file format);
Normal operating condition, improper and failure operation state (the specific root of the practical regional power system operation of simulation According in live actual motion the problem carry out analogue simulation, in Bulk power system simulation system to real system operating parameter into The reasonable adjustment of row, has obtained the multiple systems method of operation, has there is normal condition, abnormal condition and malfunction etc., constructed Intelligent measurement library comprising multiple groups operating status) form the intelligent measurement library of the case containing multiple groups.
In a step 102, automatic voltage control system judges corresponding electricity in the actual operation parameters of trend section information Whether the voltage or power factor of gas equipment exceed setting limit value.
When implementing, intermediate communication data interface module is by the multiple-channel output analog quantity in trend section information and switchs position Confidence number is converted into the telemetering and remote signalling information that dispatch automated system can identify by data communication protocol IEC104 specification; Actual operation parameters are the telemetering and remote signalling information that dispatch automated system can identify.The threshold values therein that sets reaches as expectation Voltage and power factor limit value.
In step 103, if the voltage or power factor in actual operation parameters are beyond setting limit value, automatic electric is voltage-controlled System processed generates corresponding control strategy, and control strategy is sent to Bulk power system simulation by intermediate communication data interface module System.
When judging the actual operation parameters of trend section information, runnable interface can be shown automatic voltage control system Each operating condition of transformer station equipment, locking information, busbar voltage, critical point power rate and the control strategy for currently practical power grid Information etc..Its runnable interface can also show the operation information of currently practical power grid simultaneously, and operation information includes operating parameter, mould Type maintenance, remote signalling pretreatment information, operation information, power plant and substation's information, bus state, capacitive reactance device state and transformer state, are convenient for It safeguards AVC Controlling model, checks all kinds of operating parameters, plant stand, bus, equipment state, fully understand electric network state.
At step 104, Bulk power system simulation system carries out control manipulation to respective electric equipment according to control strategy, updates Trend section information is new trend section information, and is sent to automatism voltage control system by intermediate communication data interface module System.
Intermediate communication data interface module is also to believe modish flow section when sending to new trend section information Multiple-channel output analog quantity and switch position signal in breath are converted into dispatching automation by data communication protocol IEC104 specification The telemetering and remote signalling information that system can identify.
In one embodiment of the invention, if in actual operation parameters corresponding electrical equipment voltage or power factor Beyond setting limit value, automatic voltage control system uses AVC control algolithm or AVC optimization algorithm according to telemetering and remote signalling information (since dispatch automated system is a commonly used system in current dispatching of power netwoks, automatic voltage control system therein AVC control algolithm and AVC optimization algorithm are also that system itself has, and this programme is how to be optimized using AVC control algolithm and AVC Algorithm generates control strategy and belongs to common sense, just no longer repeats herein on how to generate) generate corresponding transformer branch and change The control strategy of depressor switch.
Control strategy is converted to big electricity by standard data communications specification IEC61970 by intermediate communication data interface module The remote control and remote regulating information that network simulation system can identify.
Bulk power system simulation system carries out separating brake and closing operation to corresponding capacitor branches according to remote control and remote regulating information, right Transformer gear carries out upshift and downshift operation;After control manipulation is completed, and more new trend section information is modish flow section Information.
In step 105, automatic voltage control system judges the voltage in the actual operation parameters of new trend section information Or whether power factor exceeds setting limit value.Step 101 to step 105 makes Bulk power system simulation system and automatic voltage control system Constitute a complete closed loop detection.
Since automatic voltage control system only judges the actual motion after being regulated and controled by control strategy in step 105 Whether parameter exceeds setting limit value, will not be secondary again if there is the case where part actual operation parameters are beyond setting value At control strategy, is only warned to remind scheduling artificially to be adjusted, control the normal work of power grid.So at this point, simultaneously Can not determine automatic voltage control system generate control strategy optimization effect, control efficiency and operability whether economical rationality , need the control strategy generated to automatic voltage control system to assess, in step 106 and step 107 then with true Whether the fixed control strategy is most reasonably to be scheduled for personnel to refer to.
In step 106, under the same method of operation, trend section information is sent to assessment system by Bulk power system simulation system System.
In step 107, assessment system generates assessment control strategy using numerical optimisation algorithms according to actual operation parameters, And according to its generate assessment control strategy from power grid index, stand in index, AVC operating index and Policy evaluation index to automatic Effect of optimization, control efficiency and the operability for the control strategy that voltage control system generates are assessed.
In another embodiment of the present invention, assessment system is generated according to actual operation parameters using numerical optimisation algorithms Assessment control strategy is mainly to be realized by the objective function of building, below the objective function of logarithm optimization algorithm carry out Illustrate:
Wherein, GijFor the transadmittance between node i and node j;Ui、UjFor node i, the voltage magnitude of j;θijFor node i, Phase angle difference between j, θijij
The bound for objective function of numerical optimisation algorithms in this method includes equality constraint and inequality constraints, etc. Formula constraint is main to consider trend equilibrium equation;
Inequality constraints is made of control variables constraint and state variable constraint, wherein control variable includes removing balance nodes Remaining outer generator outlet voltage vector, adjustable transformer no-load voltage ratio and the vector that capacitor composition can be thrown;State variable includes each Node voltage amplitude, generator reactive power output and critical point power factor.
Wherein, equality constraint are as follows:
Wherein, Pi、QiFor the injecting power of node i;UjFor node voltage amplitude;θijFor node i, the phase angle difference of j.
Control variables constraint are as follows:
Wherein, UG min、UG maxFor the bound of generator terminal voltage;QC min、QC maxIt is idle for existing shunt capacitor Bound;TK min、TK maxFor the bound of transformer gear.
State variable constraint: certain critical point power factor range is usually assigned to geological survey center in province tune centerGenerally do not allow reactive power releasing in area power grid operation, soUnder given active power dispatch mode, it can be deduced that the on high-tension side reactive power limitation of critical point main transformer,And the collection that critical point main transformer is constituted is combined into NTGK.Therefore, state becomes Amount constraint is as follows:
Wherein, QG min、QG maxFor the bound of generator reactive power output;Umin、UmaxFor node voltage bound; QTi min、QTi maxFor the bound of critical point high voltage side of transformer reactive power.
The assessment control strategy provided below with reference to specific actual electric network to assessment system is to automatic voltage control system Effect of optimization, control efficiency and the operability of the control strategy of generation are assessed:
The detected object of the present embodiment is the embedded automatic voltage control system of OPEN3000, automatic voltage control system Integrated design is used with OPEN3000 monitoring system, SCADA system carries out data acquisition, static network model is obtained from FES, Controlling model is generated by PAS modeling program, centered on 220kV substation, determines that administrative junior 110kV becomes according to real time information Auto-partition is completed in power station, has the throwing for carrying main transformer tap, capacitor or reactor by controlling in region-wide range It cuts, it is higher to reach rate of qualified voltage in control range, while the lesser target of the whole network active loss.
Somewhere power grid is chosen as test macro, which is divided into 4 electrical islands, bus number totally 141, plant stand number 37, mesh, wherein 8,220kV substation, 29,110kV substation, include two-winding transformer 43, three-winding transformer 32 Platform, transmission line of electricity 68, load 516, reactor 147, system rack structure chart are shown in attached drawing 2.
The control strategy that automatic voltage control system provides under a variety of methods of operation
For the various problems that the area power grid for the automatic voltage control system that put into operation at present occurs in operation, such as power transformation Standing, capacity reactance is frequently adjusted, system control strategy is unreasonable, lacks network-wide optimization algorithm etc..According to live automatism voltage control The problem of system physical presence, carries out simulation case, changes system operation mode, is divided into normal, improper and failure operation shape State, the case library that above-mentioned different operating status is debugged and taken on a certain scale respectively, main carry out have AVC state to estimate Meter, Threshold Crossing Alert and locking information, control strategy realize, control and the test contents such as optimization algorithm contrasting detection, and from control Tactful reasonability, action frequency and economy etc. carry out comprehensive assessment to automatic voltage control system.
By taking " region voltage strategy " as an example, closed loop detection method is the regulating system method of operation, so that institute's survey region Voltage is universal higher or relatively low, and region inner part 110kV and 10kV busbar voltage is out-of-limit, forms an emulation case, is stored in Under Bulk power system simulation system specified directory, Bulk power system simulation system is run, carries out Bulk power system simulation system and OPEN3000 system Data interaction, in the case where state estimation reaches 100% be arranged automatic voltage control system be control algolithm, generate phase The control strategy answered simultaneously is assigned to Bulk power system simulation system, after transformer and capacitor is adjusted, sees whether to reach Satisfied regulating effect, realizes the closed loop test under Bulk power system simulation systematic control algorithm.This time closed loop test terminates Afterwards, then to this case Bulk power system simulation system optimization algorithm closed loop test is carried out, test process is identical with the above process, need to only set Set different algorithms.Table 1 gives the regulating effect of Bulk power system simulation system under the method for operation of part.
Table 1
By taking " single stand idle strategy " as an example, closed loop detection method is the regulating system method of operation so that institute's survey region or There is idle underfill or overfill, transformer reactive power constraints, the control plan that analysis automatic voltage control system provides in single substation Slightly, table 2 gives the regulating effect of Bulk power system simulation system under the method for operation of part.
Table 2
The method of operation Regulating effect
Underfill that ancient city region is idle AVC shows no regulation measure
Overfill that ancient city region is idle AVC shows no regulation measure
The nine idle overfills in ridge station AVC is idle after adjusting to restore normal
Underfill that Ma Jingzhan is idle AVC is idle after adjusting to restore normal
As can be seen from the table, under certain methods of operation, there are still some problems for automatic voltage control system, Ke Neng In some cases without corresponding regulation measure, control target is not reached.Therefore the automatism voltage control system run in scene System need to be further improved.
The control strategy that the assessment strategy and automatic voltage control system that assessment system provides provide compares
The control strategy of detected automatic voltage control system is assessed, the numerical optimization being introduced into assessment system is calculated Method is detected control plan given by automatic voltage control system and optimization algorithm as reference, comparison under the same method of operation Slightly.The automatic voltage control system that OPEN3000 system is arranged at this time is non-control state, and intermediate communication data-interface is switched To Bulk power system simulation system and assessment system, operation emulation case starts assessment system, and selection is carried out based on numerical optimisation algorithms It calculates and obtains corresponding assessment control strategy.Table 3 gives and is detected under " downtown area overload " this method of operation The control strategy pair that the numerical optimisation algorithms of the control algolithm of automatic voltage control system, optimization algorithm and assessment system obtain Than.
Table 3
From the point of view of action frequency, AVC control algolithm action frequency is 15 times;AVC optimization algorithm action frequency is 11 times;Number The action frequency for being worth optimization algorithm is 8 times;From the point of view of network loss, the network loss that numerical optimisation algorithms obtain is minimum, and controls compared to AVC The network loss that algorithm obtains reduces 1MW;From the point of view of variation rate, the variation rate after numerical optimisation algorithms movement is compared with AVC The variation rate that control algolithm obtains reduces by 0.443023%.From the point of view of comparing in terms of the three above, numerical optimization is calculated Method all embodies better control effect.
Examine three kinds of strategies to the control effect of downtown area voltage, region voltage comparison is as shown in Figure 3.It can by Fig. 3 To find out, AVC control algolithm, optimization algorithm and numerical optimisation algorithms have preferable improvement for the voltage of entire downtown area Effect, wherein the improvement of numerical optimisation algorithms is best, the voltage operation level of whole region can be made to be more nearly specified Voltage.
Critical point power factor is also an important objectives of examination in operation, by comparing under three kinds of different control strategies To critical point power factor examined, particular content is shown in Fig. 4.From fig. 4, it can be seen that numerical optimisation algorithms can be by the pass in city Mouth power factor controlling also has region critical point power factor to 0.95 or more, AVC control algolithm and optimization algorithm more bright Aobvious improvement.
From the point of view of the above comparing result, the numerical optimisation algorithms of assessment system are whether from action frequency, network loss or right In the regulation of region voltage and critical point power factor, good control characteristic is all shown.It can be seen that it is current from The control strategy that dynamic voltage control system provides not is most reasonable.
Evaluation index
To automatism voltage control in terms of index, AVC operating index and Policy evaluation index etc. four out of the whole network index, stand System carries out comprehensive, the evaluation of overall process, carries out to various aspects such as control strategy optimization effect, control efficiency, operability Assessment.The strategy of automatic voltage control system is assessed under the method for operation of " the whole network load is higher ", first calculates and remembers Initial power flow solutions are recorded, after the adjustment of the control strategy of automatic voltage control system, then the power flow solutions after statistical adjustment, and Two times result is assessed respectively, obtains the evaluation result and comparative analysis of control strategy.
P11、P12、P13、P14、P15、P16、P17Respectively represent the voltage out-of-limit before control strategy executes (beyond setting limit value) Regulation, critical point power factor qualification rate, whole network voltage qualification rate, the whole network Network Loss Rate, equipment repetitive operation rate, single active damage of standing Consumption, single station voltage out-of-limit rate 7 single Policy evaluation indexs, P21、P22、P23、P24、P25、P26、P27After then respectively indicating strategy execution Index.
Firstly, need to calculate assessment institute palpus index.Initial power flow solutions are obtained by Bulk power system simulation system-computed, And it is as follows according to result to calculate its index:
Table 4
P11 P12 P13 P14 P15 P16 P17
Index value 1.15% 65.0% 88.89% 0.78% 0.00% 0.14% 1.62%
Record automatic voltage control system is as follows using the control strategy that control algolithm provides:
Table 5
State before acting State after movement Action frequency
The main transformer of ancient city 1,2 3 grades 4 grades 1 grade * 2
1,2, No. 3 main transformer of Sanxing Pile 5 grades 6 grades 1 grade * 3
The main transformer of the native pool 1,2 3 grades 4 grades 1 grade * 2
New city 1,2 main transformer 2 grades 3 grades 1 grade * 2
The main transformer of white mausoleum 1 4 grades 5 grades 1 grade * 1
Bright spirit palace 1,2 main transformer 2 grades 3 grades 1 grade * 2
2 tunnel of bright spirit palace capacitor It disconnects Investment 1 time
1 tunnel of capacitor on the sunny side It disconnects Investment 1 time
2 tunnel of Sanxing Pile capacitor It disconnects Investment 1 time
White 3 tunnel of mausoleum capacitor It disconnects Investment 1 time
Go back to 4 tunnel of billows capacitor It disconnects Investment 1 time
Power flow solutions after control strategy executes are calculated, and each finger target value is calculated according to result, are enumerated as follows:
Table 6
Type P21 P22 P23 P24 P25 P26 P27
Index value 0 94% 100% 0.76% 0 0.14% 0
The indices of automatic voltage control system movement front and back are apparent it can be seen from calculated result is mentioned It rises, the volume qualification rate of especially voltage and critical point power factor is all significantly improved.
Record assessment system is as follows using the assessment control strategy that numerical optimisation algorithms provide:
Table 7
Power flow solutions after assessment control strategy executes are calculated, and each finger target value is calculated according to result, are enumerated as follows:
Table 8
Type P21 P22 P23 P24 P25 P26 P27
Index value 0 100% 100% 0.756% 0 0.125% 0
The indices of numerical optimisation algorithms movement front and back are apparent it can be seen from calculated result is improved, It can be seen that assessment control strategy that numerical optimisation algorithms provide compared to automatism voltage control from the indices being calculated The control strategy control effect that system provides is preferable, improve critical point power factor qualification rate, also reduces the whole network and singly stands Network Loss Rate.Therefore from the whole network index, stand in index, AVC operating index and Policy evaluation index etc. to automatism voltage control It is relatively reasonable that system, which carries out assessment,.

Claims (7)

1. based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system, which is characterized in that packet Include following steps:
The trend that Bulk power system simulation system chooses any practical area power grid from the intelligent measurement library for being stored with multiple groups case is disconnected Face information, and the trend section information is sent to the automatic of dispatch automated system by intermediate communication data interface module Voltage control system;
The automatic voltage control system judges voltage or power factor in the actual operation parameters of the trend section information Whether beyond setting limit value;
If the automatic voltage control system generates corresponding control strategy, and logical by the centre beyond setting limit value The control strategy is sent to the Bulk power system simulation system by letter data interface module;
The Bulk power system simulation system carries out control manipulation to respective electric equipment according to the control strategy, updates the trend Section information is new trend section information, and is sent to automatic voltage control system by intermediate communication data interface module;
The automatic voltage control system judges that voltage or power factor in the actual operation parameters of new trend section information are It is no to exceed setting limit value;
With regard under the same method of operation, the trend section information is sent to assessment system by Bulk power system simulation system;
The assessment system generates assessment control strategy using numerical optimisation algorithms according to the actual operation parameters, and according to it The assessment control strategy of generation from power grid index, stand in index, AVC operating index and Policy evaluation index to automatism voltage control Effect of optimization, control efficiency and the operability for the control strategy that system generates are assessed;
The Bulk power system simulation system includes:
System configuration module, the login management for the case in intelligent measurement library;
Basic data library module, the voltage of each node for storing basic data completion electric system, power distribution situation Load flow calculation, and calculation of tidal current is stored;
Real time data library module, for store power distribution network generation real-time running data, and realize real-time running data importing, Data difference existing for export and real-time running data and basic data, and the action policy that the AVC system of storage is provided In displacement information be sent to computing module and carry out topological analysis and dynamic parallel and calculate;And
Computing module calculates for completing dynamic parallel, establishes intelligent measurement library and load fluctuation case library, simulate various power grids The method of operation or perturbation scheme.
2. the detection of automatic voltage control system closed loop and assessment under the system according to claim 1 based on Bulk power system simulation Method, which is characterized in that the objective function of the numerical optimisation algorithms are as follows:
Wherein, GijFor the transadmittance between node i and node j;Ui、UjFor node i, the voltage magnitude of j;θijFor node i, j it Between phase angle difference, θijij
3. the detection of automatic voltage control system closed loop and assessment under the system according to claim 2 based on Bulk power system simulation Method, which is characterized in that the bound for objective function of the numerical optimisation algorithms includes equality constraint and inequality constraints, Equality constraint mainly considers trend equilibrium equation;
Inequality constraints by control variables constraint and state variable constraint form, wherein control variable include in addition to balance nodes its Remaining generator outlet voltage vector, adjustable transformer no-load voltage ratio and the vector that capacitor composition can be thrown;State variable includes each node Voltage magnitude, generator reactive power output and critical point power factor.
4. the automatic voltage control system closed loop under the system according to claim 1 to 3 based on Bulk power system simulation detects And appraisal procedure, which is characterized in that the intermediate communication data interface module is by the multiple-channel output in the trend section information Analog quantity is converted into what dispatch automated system can identify by data communication protocol IEC104 specification with switch position signal Telemetering and remote signalling information;The actual operation parameters are the telemetering and remote signalling information that dispatch automated system can identify.
5. the detection of automatic voltage control system closed loop and assessment under the system according to claim 4 based on Bulk power system simulation Method, which is characterized in that if actual operation parameters beyond setting limit value, the automatic voltage control system according to the telemetering and Remote signalling information generates the control plan of corresponding transformer branch and transformer switch using AVC control algolithm or AVC optimization algorithm Slightly;
Control strategy is converted to described by the intermediate communication data interface module by standard data communications specification IEC61970 The remote control and remote regulating information that Bulk power system simulation system can identify;
The Bulk power system simulation system carries out separating brake and closes a floodgate to grasp according to the remote control and remote regulating information to corresponding capacitor branches Make, upshift and downshift operation are carried out to transformer gear;After control manipulation is completed, and it is new for updating the trend section information Trend section information.
6. according to claim 1, being examined described in 2,3 or 5 based on the automatic voltage control system closed loop under Bulk power system simulation system Survey and appraisal procedure, which is characterized in that the voltage and power factor limit value for setting limit value and reaching as expectation.
7. the detection of automatic voltage control system closed loop and assessment under the system according to claim 6 based on Bulk power system simulation Method, which is characterized in that the construction method in the intelligent measurement library are as follows:
Import the trend section information of the practical area power grid based on CIM format;
The trend section information, which is parsed into Bulk power system simulation system, using data format conversion module can identify and in real time The pro project file of analytic operation;
The normal operating condition of the practical regional power system operation of simulation, improper and failure operation state are formed comprising multiple groups The intelligent measurement library of case.
CN201610340787.5A 2016-05-19 2016-05-19 Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system Active CN105893714B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610340787.5A CN105893714B (en) 2016-05-19 2016-05-19 Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610340787.5A CN105893714B (en) 2016-05-19 2016-05-19 Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system

Publications (2)

Publication Number Publication Date
CN105893714A CN105893714A (en) 2016-08-24
CN105893714B true CN105893714B (en) 2019-02-26

Family

ID=56716632

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610340787.5A Active CN105893714B (en) 2016-05-19 2016-05-19 Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system

Country Status (1)

Country Link
CN (1) CN105893714B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107276081B (en) * 2017-07-03 2019-12-20 国网湖南省电力有限公司 Power grid key section identification method and system
CN108958216B (en) * 2018-06-06 2020-04-17 南京国电南自电网自动化有限公司 Automatic detection system and method for new energy AGC or AVC control system
CN113435129B (en) * 2021-08-25 2021-11-23 南栖仙策(南京)科技有限公司 Method and device for optimizing control strategy of desuperheating water valve and desuperheating water valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1633074A1 (en) * 2004-09-03 2006-03-08 Atmel Nantes Sa Integrated circuit with coded securing signal, securing method, device and coded securing signal via a corresponding dynamic key.
KR20110035732A (en) * 2009-09-30 2011-04-06 한국전력공사 Electric power distribution system and test method of apparatus for stabilizing electric power system
CN102801165A (en) * 2012-08-13 2012-11-28 清华大学 Automatic voltage control method considering static security
CN102981500A (en) * 2012-11-27 2013-03-20 四川电力科学研究院 Testing platform for regional power grid automatic voltage control (AVC) system function tests based on real time digital simulator (RTDS) and construction method of testing platform
CN103149847A (en) * 2013-01-25 2013-06-12 四川电力科学研究院 Reactive voltage control efficiency detecting method based on real time digital system (RTDS)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1633074A1 (en) * 2004-09-03 2006-03-08 Atmel Nantes Sa Integrated circuit with coded securing signal, securing method, device and coded securing signal via a corresponding dynamic key.
KR20110035732A (en) * 2009-09-30 2011-04-06 한국전력공사 Electric power distribution system and test method of apparatus for stabilizing electric power system
CN102801165A (en) * 2012-08-13 2012-11-28 清华大学 Automatic voltage control method considering static security
CN102981500A (en) * 2012-11-27 2013-03-20 四川电力科学研究院 Testing platform for regional power grid automatic voltage control (AVC) system function tests based on real time digital simulator (RTDS) and construction method of testing platform
CN103149847A (en) * 2013-01-25 2013-06-12 四川电力科学研究院 Reactive voltage control efficiency detecting method based on real time digital system (RTDS)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《地区电网AVC系统设计与实现》;钟毅 等;《电力系统保护与控制》;20081201;第36卷;第41-44页
《基于RTDS的AVC装置动模试验》;王蕴敏 等;《内蒙古电力技术》;20091229;第27卷;第13-15页

Also Published As

Publication number Publication date
CN105893714A (en) 2016-08-24

Similar Documents

Publication Publication Date Title
Farag et al. A two ways communication-based distributed control for voltage regulation in smart distribution feeders
CN103296677B (en) A kind of online bulk power grid recovers aid decision-making system
CN105281344B (en) A kind of intelligent distribution network self-healing recovery optimization method considering power quality and uncertainty constraint
CN104331844B (en) A kind of power network construction project investment decision method
CN102522747B (en) Calculation method of power supply capability of power distribution system
CN102244384B (en) Optimal operation method of main transformers based on economic equivalent analysis
CN106600136B (en) Power section out-of-limit control efficiency evaluation method
CN105893714B (en) Based on the detection of automatic voltage control system closed loop and appraisal procedure under Bulk power system simulation system
CN103560532B (en) A kind of supervisory control system of megawatt battery energy storage power station and method thereof
CN107038530A (en) A kind of power distribution network overall planning method and system
CN104037776B (en) The electric network reactive-load capacity collocation method of random inertial factor particle swarm optimization algorithm
CN106877354A (en) The administration of energy conservation platform of reactive power compensation technology is monitored based on the whole network
CN105139095A (en) Power distribution network running state evaluation method based on attribute area module
CN100403619C (en) Distribution-type real-time voltage power-less optimized controlling method
CN106054019B (en) The online Fault Locating Method of power distribution network high fault tolerance based on failure confactor
CN104283222B (en) A kind of area power grid reactive voltage control system
CN112615368A (en) Distributed sensing-based platform area topology generation method and sensing terminal device
CN104158199A (en) System and method for reactive voltage optimal control of real-time status of power system
CN103606931B (en) A kind of AVC system definite value method of adjustment based on probability statistics feature
CN103296678B (en) A kind of online bulk power grid recovers aid decision-making method
CN107516896B (en) Load recovery scheme generation method based on decision tree pruning algorithm
CN103020870A (en) State evaluation modeling method and system for SF6 circuit breaker
CN102270848A (en) Offline detection method for intelligent AVC (Automatic Voltage Control) system and device thereof
CN104732101B (en) The total active mistake load value of system determines method and system in Forming Electrical Dispatching Command Tickets
CN103972927A (en) Integrated control method for transforming microgrid containing photovoltaic/stored energy generating system from connected grid to isolated grid

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Tang Yonghong

Inventor after: Li Min

Inventor after: Yin Qi

Inventor after: Xu Lin

Inventor after: Jiang Zhenchao

Inventor after: Teng Yufei

Inventor after: Chang Zhengwei

Inventor after: Pu Wei

Inventor after: Ding Rui

Inventor before: Tang Yonghong

Inventor before: Li Min

Inventor before: Yin Qi

Inventor before: Xu Lin

Inventor before: Jiang Zhenchao

Inventor before: Teng Yufei

Inventor before: Chang Zhengwei

Inventor before: Pu Wei

Inventor before: Ding Rui

GR01 Patent grant
GR01 Patent grant