CN106786646A - A kind of line level voltage control method and system - Google Patents
A kind of line level voltage control method and system Download PDFInfo
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- CN106786646A CN106786646A CN201611209403.2A CN201611209403A CN106786646A CN 106786646 A CN106786646 A CN 106786646A CN 201611209403 A CN201611209403 A CN 201611209403A CN 106786646 A CN106786646 A CN 106786646A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
This application provides a kind of line level voltage control method and system, line level voltage control method realizes the regulation and control of distribution network line terminal voltage by control circuit level equipment and platform area level equipment, effectively to solve the problems, such as distribution network line end (i.e. load side and feeder terminal) low-voltage.
Description
Technical field
The application is related to power domain, more particularly to a kind of line level voltage control method and system.
Background technology
With the fast development of rural economy, the continuous quickening of new rural village Urbanization Construction process, particularly " under household electrical appliances
A series of implementation of Huinong's policies such as township ", electrical energy demands rapid growth.In recent years, Guo Wang companies are progressively increased to power distribution network
Dynamics of investment, but the distribution its construction level of non-developed regions is still backward.Particularly rural area, power supply capacity and economic development
Incompatible particularly thorny, there is new bottleneck in power supply, and the relatively low problem of distribution network line terminal voltage is serious.
Therefore, problem of the relatively low problem of distribution network line terminal voltage as urgent need to resolve how is solved.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of line level voltage control method and system, to reach
To the purpose for solving the problems, such as distribution network line end (i.e. load side and feeder terminal) low-voltage, technical scheme is as follows：
A kind of line level voltage control method, including：
Low-voltage monitoring and early warning platform collects the working voltage data and line level of level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data and line level
The working voltage data of scope are analyzed, and obtain low-voltage producing cause, harm, the influence to electric power meter and low electricity
Pressure administers mechanism and prophylactico-therapeutic measures, and by the low-voltage producing cause, harm, the influence to electric power meter and low-voltage
Administer mechanism and prophylactico-therapeutic measures is sent to distribution area three-phase simulation software systems；
The distribution area three-phase simulation software systems are using the low-voltage producing cause, harm, to electric power meter
Influence and low-voltage administer mechanism and prophylactico-therapeutic measures, risk-aversion control measure and risk are carried out to the power distribution network to be controlled
Forewarn evaluation emulation testing, obtains simulation result, and the simulation result is sent to distribution network voltage quality controlling auxiliary determines
Plan system；
The distribution network voltage quality controlling aid decision-making system obtains described from the low-voltage monitoring and early warning platform
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas to be controlled, and using described imitative
The working voltage data and the working voltage data of line level scope of true result and the level scope in power distribution network Zhong Tai areas to be controlled,
Generate quality of voltage and administer aid decision instruction, and send the quality of voltage improvement aid decision and instruct to low-voltage prison
Survey early warning platform；
The low-voltage monitoring and early warning platform is based on the quality of voltage and administers aid decision instruction and described to be controlled match somebody with somebody
The working voltage data and the working voltage data of line level scope of power network Zhong Tai areas level scope, control the power distribution network to be controlled
In line level equipment carry out Reactive-power control action and voltage-regulation action, with improve in the power distribution network to be controlled load side and
The voltage of feeder terminal and idle.
Preferably, the low-voltage monitoring and early warning platform is administered aid decision instruction and is treated with described based on the quality of voltage
The working voltage data and the working voltage data of line level scope of control power distribution network Zhong Tai areas level scope, control described to be controlled
Line level equipment in power distribution network carries out Reactive-power control action and voltage-regulation action, including：
Line level pressure regulator in the power distribution network to be controlled is monitored the voltage of load side and feeder terminal and it is idle
More prescribe a time limit, the reactive-load compensation equipment in the control power distribution network to be controlled in line level scope carries out switching operation, and described
Reactive-load compensation equipment in power distribution network to be controlled in line level scope is carried out after switching operation, and described to be controlled match somebody with somebody is monitored again
Load side and feeder terminal is idle in power network；
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled,
Controlling the line level equipment in the power distribution network to be controlled carries out voltage-regulation action；
If the result monitored again is that load side and the idle of feeder terminal are unsatisfactory for requiring in the power distribution network to be controlled,
Then monitoring result is reported to the reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform and described to be controlled match somebody with somebody
The working voltage data and the working voltage data of line level scope of power network Zhong Tai areas level scope；
Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform is based on the monitoring result and described
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas to be controlled, according to power transformation station level
Reactive-power control strategy, adjusts the idle of load side and feeder terminal in the power distribution network to be controlled.
Preferably, controlling the line level equipment in the power distribution network to be controlled carries out voltage-regulation action, including：
Line level pressure regulator sends voltage to the reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform
The working voltage data and the working voltage number of line level scope of adjust request and the level scope in power distribution network Zhong Tai areas to be controlled
According to；
Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform responds the voltage adjust request, and
Based on the power distribution network Zhong Tai areas level working voltage data of scope to be controlled and the working voltage data of line level scope and institute
State quality of voltage and administer aid decision instruction, generation is for the regulating command of the line level pressure regulator and adjustable for line level
The regulating command of distribution transforming, and the regulating command for line level pressure regulator is sent to the line level pressure regulator, send institute
The regulating command for the adjustable distribution transforming of line level is stated to the adjustable distribution transforming of the line level, electricity is adjusted with by the line level pressure regulator
Buckling ratio, the adjustable modified tone section voltage change ratio of line level.
Preferably, the distribution area three-phase simulation software systems include：Database, module library, recognition system and drill
Show and display systems.
Preferably, the generating process of the distribution area three-phase simulation software systems, including：
Using the power system block-set SimPowerSystem with Matlab, exploitation distribution area three-phase simulation is soft
Part system.
A kind of line level voltage control system, including：
Low-voltage monitoring and early warning platform, working voltage data and line for collecting level scope in power distribution network Zhong Tai areas to be controlled
Road level scope working voltage data, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data and line
Road level scope working voltage data be analyzed, obtain low-voltage producing cause, harm, the influence to electric power meter and
Low-voltage administers mechanism and prophylactico-therapeutic measures, and by the low-voltage producing cause, harm, the influence to electric power meter and low
Voltage administers mechanism and prophylactico-therapeutic measures is sent to distribution area three-phase simulation software systems, and based on platform in the power distribution network to be controlled
Area's level working voltage data of scope and the working voltage data of line level scope and distribution network voltage quality controlling aid decision
The quality of voltage of system generation administers aid decision instruction, controls the line level equipment in the power distribution network to be controlled to carry out idle
Regulation action and voltage-regulation are acted, to improve in the power distribution network to be controlled the voltage of load side and feeder terminal and idle；
The distribution area three-phase simulation software systems, for using the low-voltage producing cause, harm, to electric energy metrical
The influence of device and low-voltage administer mechanism and prophylactico-therapeutic measures, the power distribution network to be controlled is carried out risk-aversion control measure and
Risk-warning assesses emulation testing, obtains simulation result, and the simulation result is sent into auxiliary to distribution network voltage quality controlling
Help decision system；
The distribution network voltage quality controlling aid decision-making system, for being obtained from the low-voltage monitoring and early warning platform
The working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled, and utilize institute
State the working voltage data and the working voltage of line level scope of simulation result and the level scope in power distribution network Zhong Tai areas to be controlled
Data, generation quality of voltage administers aid decision instruction, and sends the quality of voltage and administer aid decision and instruct to described low
Voltage monitoring early warning platform.
Preferably, the low-voltage monitoring and early warning platform includes：Line level pressure regulator and reactive voltage three-level joint debugging system；
The line level pressure regulator, for the voltage of load side and feeder terminal in the power distribution network to be controlled is monitored
More prescribed a time limit with idle, the reactive-load compensation equipment in the control power distribution network to be controlled in line level scope carries out switching operation,
And after the reactive-load compensation equipment in line level scope in the power distribution network to be controlled carries out switching operation, monitor again described
Load side and feeder terminal is idle in power distribution network to be controlled；
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled,
Controlling the line level equipment in the power distribution network to be controlled carries out voltage-regulation action；
If the result monitored again is that load side and the idle of feeder terminal are unsatisfactory for requiring in the power distribution network to be controlled,
The operation of monitoring result and the level scope in power distribution network Zhong Tai areas to be controlled is then reported to the reactive voltage three-level joint debugging system
The working voltage data of voltage data and line level scope；
The reactive voltage three-level joint debugging system, for based on the monitoring result and the power distribution network Zhong Tai areas to be controlled
The working voltage data and the working voltage data of line level scope of level scope, according to power transformation station level Reactive-power control strategy, regulation
Load side and feeder terminal is idle in the power distribution network to be controlled.
Preferably, the line level pressure regulator, is additionally operable to the reactive voltage three in the low-voltage monitoring and early warning platform
Cascade adjusting system sends the working voltage data and circuit of voltage adjust request and the level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of level scope；
The reactive voltage three-level joint debugging system, is additionally operable to respond the voltage adjust request, and based on described to be controlled
The power distribution network Zhong Tai areas level working voltage data of scope and the working voltage data of line level scope and the quality of voltage are administered
Aid decision is instructed, and regulating command of the generation for the line level pressure regulator and the regulation for the adjustable distribution transforming of line level refer to
Order, and the regulating command for line level pressure regulator to the line level pressure regulator is sent, transmission is described to be directed to line level
The regulating command of adjustable distribution transforming adjusts voltage change ratio to the adjustable distribution transforming of the line level with by the line level pressure regulator, described
The adjustable modified tone section voltage change ratio of line level.
Preferably, the distribution area three-phase simulation software systems include：Database, module library, recognition system and drill
Show and display systems.
Preferably, also include：
Generating means, for the power system block-set SimPowerSystem of use utilization Matlab, match somebody with somebody described in exploitation
Electric area's three-phase simulation software systems.
Compared with prior art, the application has the beneficial effect that：
In this application, the fortune of level scope in power distribution network Zhong Tai areas to be controlled is collected by low-voltage monitoring and early warning platform first
The working voltage data of row voltage data and line level scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope fortune
The working voltage data of row voltage data and line level scope are analyzed, and obtain low-voltage producing cause, harm, to electric energy meter
Mechanism and prophylactico-therapeutic measures are administered in the influence and low-voltage for measuring device, afterwards by distribution area three-phase simulation software systems using described
Low-voltage producing cause, harm, the influence to electric power meter and low-voltage administer mechanism and prophylactico-therapeutic measures, to described to be controlled
Power distribution network processed carries out risk-aversion control measure and Risk-warning assessment emulation testing, obtains simulation result, and by power distribution network
Quality of voltage administers operation of the aid decision-making system using the simulation result and the level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of voltage data and line level scope, generation quality of voltage administers aid decision instruction, finally by low electricity
Pressure monitoring and early warning platform is based on the quality of voltage and administers aid decision instruction and the level scope in power distribution network Zhong Tai areas to be controlled
Working voltage data and line level scope working voltage data, control the line level equipment in the power distribution network to be controlled to enter
Row Reactive-power control act and voltage-regulation action, with improve load side and feeder terminal in the power distribution network to be controlled voltage and
It is idle.The regulation and control of distribution network line terminal voltage are realized by control circuit level equipment and platform area level equipment, to have
Effect solves the problems, such as distribution network line end (i.e. load side and feeder terminal) low-voltage.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, below will be to make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the overall study thinking block schematic illustration that the application is provided；
Fig. 2 is a kind of flow chart of the line level voltage control method that the application is provided；
Fig. 3 is a kind of sub-process figure of the line level voltage control method that the application is provided；
Fig. 4 is another sub-process figure of the line level voltage control method that the application is provided；
Fig. 5 is a kind of logical construction schematic diagram of the line level voltage control system that the application is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
Embodiment one
In the present embodiment, there is provided a kind of overall study thinking frame diagram, refer to Fig. 1, as shown in figure 1, according to point
The basic structure and control thought of layer hierarchical control, UC unit controls are pressed by the various kinds of equipment of platform area level, line level and power transformation station level
Level processed, OC organize and coordinate level, CC maincenters commandant level and carry out the arrangement in terms of working mechanism and strategy refinement.
Based on the overall study thinking frame diagram shown in Fig. 1, line level voltage control method is illustrated, refer to figure
2, a kind of flow chart of the line level voltage control method provided it illustrates the application may comprise steps of：
Step S11：Low-voltage monitoring and early warning platform collects the working voltage data of level scope in power distribution network Zhong Tai areas to be controlled
With the working voltage data of line level scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data
Working voltage data with line level scope are analyzed, and obtain low-voltage producing cause, harm, the shadow to electric power meter
Ring and low-voltage administers mechanism and prophylactico-therapeutic measures, and by the low-voltage producing cause, harm, the influence to electric power meter
And low-voltage administers mechanism and prophylactico-therapeutic measures is sent to distribution area three-phase simulation software systems.
Step S12：The distribution area three-phase simulation software systems are using the low-voltage producing cause, harm, to electric energy
The influence of metering device and low-voltage administer mechanism and prophylactico-therapeutic measures, risk-aversion control is carried out to the power distribution network to be controlled and is arranged
Apply and assess emulation testing with Risk-warning, obtain simulation result, and the simulation result is sent to distribution network voltage quality control
Reason aid decision-making system.
Step S13：The distribution network voltage quality controlling aid decision-making system is from the low-voltage monitoring and early warning platform
Obtain the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled, and profit
With the operation of the simulation result and the working voltage data and line level scope of the level scope in power distribution network Zhong Tai areas to be controlled
Voltage data, generation quality of voltage administers aid decision instruction, and sends the quality of voltage and administer aid decision and instruct to institute
State low-voltage monitoring and early warning platform.
Step S14：The low-voltage monitoring and early warning platform is based on quality of voltage improvement aid decision and instructs and described
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas to be controlled, control described to be controlled
Line level equipment in power distribution network processed carries out Reactive-power control action and voltage-regulation action, with improving the power distribution network to be controlled
The voltage of load side and feeder terminal and idle.
In this application, the fortune of level scope in power distribution network Zhong Tai areas to be controlled is collected by low-voltage monitoring and early warning platform first
The working voltage data of row voltage data and line level scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope fortune
The working voltage data of row voltage data and line level scope are analyzed, and obtain low-voltage producing cause, harm, to electric energy meter
Mechanism and prophylactico-therapeutic measures are administered in the influence and low-voltage for measuring device, afterwards by distribution area three-phase simulation software systems using described
Low-voltage producing cause, harm, the influence to electric power meter and low-voltage administer mechanism and prophylactico-therapeutic measures, to described to be controlled
Power distribution network processed carries out risk-aversion control measure and Risk-warning assessment emulation testing, obtains simulation result, and by power distribution network
Quality of voltage administers operation of the aid decision-making system using the simulation result and the level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of voltage data and line level scope, generation quality of voltage administers aid decision instruction, finally by low electricity
Pressure monitoring and early warning platform is based on the quality of voltage and administers aid decision instruction and the level scope in power distribution network Zhong Tai areas to be controlled
Working voltage data and line level scope working voltage data, control the line level equipment in the power distribution network to be controlled to enter
Row Reactive-power control act and voltage-regulation action, with improve load side and feeder terminal in the power distribution network to be controlled voltage and
It is idle.The regulation and control of distribution network line terminal voltage are realized by control circuit level equipment and platform area level equipment, to have
Effect solves the problems, such as distribution network line end (i.e. load side and feeder terminal) low-voltage.
As shown in figure 1, in platform area level, reactive-load compensation equipment and voltage adjusting device are UC grades of equipment, and local collection is installed in distribution transforming additional
Middle controller, (currently develops the communication function of SPC and UC equipment, SPC is undertaken OC grades of equipment as OC grades of equipment
Function, under condition limited situation, it is also possible to which OC grades of equipment is served as by miscellaneous equipment).Above equipment can gather correlative measurement
Amount, each via feature identification device CI, it is determined that current significant condition, inference machine IE is according to rule base RB, generation control operation
Instruction.
In line level, SVR can and OC grade and UC grade equipment, exercisable UC grades of equipment fills for the reactive-load compensation on circuit
Put.
Based on this, in the present embodiment, the low-voltage monitoring and early warning platform is based on quality of voltage improvement auxiliary and determines
Plan instructs the working voltage data and the working voltage data of line level scope with the level scope in power distribution network Zhong Tai areas to be controlled,
Controlling the line level equipment in the power distribution network to be controlled to carry out Reactive-power control action please with the detailed process of voltage-regulation action
Referring to Fig. 3, may comprise steps of：
Step S21：The voltage of line level pressure regulator load side and feeder terminal in the power distribution network to be controlled is monitored
More prescribed a time limit with idle, the reactive-load compensation equipment in the control power distribution network to be controlled in line level scope carries out switching operation,
And after the reactive-load compensation equipment in line level scope in the power distribution network to be controlled carries out switching operation, monitor again described
Load side and feeder terminal is idle in power distribution network to be controlled.
Line level pressure regulator can simultaneous OC grades (i.e. Centralized Controller) and the UC grades of work(of (i.e. cell controller, such as pressure regulator)
Energy.
In the present embodiment, line level pressure regulator is the OC2 in Fig. 1：SVR；In power distribution network to be controlled in line level scope
Reactive-load compensation equipment be UC5 in Fig. 1：SVG.
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled,
Step S22 is performed, if the result monitored again is that load side and the idle of feeder terminal are unsatisfactory in the power distribution network to be controlled
It is required that, then perform step S23.
In the present embodiment, line level pressure regulator load side and feeder terminal in the power distribution network to be controlled is monitored
Voltage and idle getting over are prescribed a time limit, and the reactive-load compensation equipment in the control power distribution network to be controlled in line level scope carries out switching behaviour
The process of work is specifically as follows：The electricity of line level pressure regulator load side and feeder terminal in the power distribution network to be controlled is monitored
Pressure and idle getting over are prescribed a time limit, the reactive-load compensation equipment in transmission control instruction to the power distribution network to be controlled in line level scope,
With by the reactive-load compensation equipment in line level scope in the power distribution network to be controlled switching operation is carried out according to control instruction；
Or, the voltage and nothing of line level pressure regulator load side and feeder terminal in the power distribution network to be controlled is monitored
Work(is more prescribed a time limit, the idle benefit in transmission voltage and idle out-of-limit information to the power distribution network to be controlled in line level scope
Equipment is repaid, voltage and idle out-of-limit is being learnt with by the reactive-load compensation equipment in line level scope in the power distribution network to be controlled
When, the control strategy according to itself is set for switching operation.
It should be noted that in the power distribution network to be controlled the voltage of load side and feeder terminal and it is idle it is out-of-limit in
It is out-of-limit refer to it is too low or too high.
Step S22：Controlling the line level equipment in the power distribution network to be controlled carries out voltage-regulation action.
Step S23：Monitoring result is reported to the reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform
With the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled.
Step S24：Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform is based on the monitoring knot
Fruit and the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled, according to
Power transformation station level Reactive-power control strategy, adjusts the idle of load side and feeder terminal in the power distribution network to be controlled.
In the present embodiment, controlling the line level equipment in the power distribution network to be controlled carries out the specific of voltage-regulation action
Process, refers to Fig. 4, may comprise steps of：
Step S31：Line level pressure regulator is to the reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform
Send the working voltage data and the fortune of line level scope of voltage adjust request and the level scope in power distribution network Zhong Tai areas to be controlled
Row voltage data.
Step S32：Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform responds the voltage and adjusts
Whole request, and working voltage data and the working voltage of line level scope based on the level scope in power distribution network Zhong Tai areas to be controlled
Data and the quality of voltage administer aid decision instruction, and generation is for the regulating command of the line level pressure regulator and for line
The regulating command of the road adjustable distribution transforming of level, and send the regulating command for line level pressure regulator to the line level pressure regulation
Device, sends the regulating command for the adjustable distribution transforming of line level to the adjustable distribution transforming of the line level, is adjusted with by the line level
Depressor adjusts voltage change ratio, the adjustable modified tone section voltage change ratio of line level.
In the present embodiment, the adjustable distribution transforming of line level is the UC4 in Fig. 1.
In the present embodiment, the design on distribution area three-phase simulation software systems is as follows：
First, system composition and framework
Distribution area three-phase simulation software systems include：Database, module library, recognition system and demonstration are with displaying
System.Due to the technical staff in the mostly power system using the platform, personnel are limited and more fix, therefore this platform is used
C/S frameworks.
(1) database
The following information for the treatment of range class should be stored in database：NETWORK STRUCTURE PRESERVING POWER SYSTEM in the concrete engineering being related to and
All kinds of parameters.Database and input interface, can be carried out, such as other companies by learning the interface setting of intra-class correlation software
Exploitation tidal current analysis program；
(2) model library
Component models storehouse includes transformer, breaker, disconnecting switch, reactive power compensator, three-phase imbalance device, feeder line
The distribution components model such as pressure regulator, circuit.These common models are partially improved, it is more conformed to power distribution station
Physical prototype.Set up typical home load model, such as computer, air-conditioning, refrigerator, Electric stove, bulb, electric cooker, micro-wave oven, TV
The models such as machine, fan, water heater.For roof photovoltaic power generation system, electronic vehicle model, methane power generating system mould that rural area is commonly used
Type is the emphasis that we study.Model library will also be set up and provide reactive compensator controller model, feeder line voltage regulator controllers mould
Type three-phase imbalance device Controlling model dispatch control system model.Existing control system model at present mostly using typical structure and
Parameter, we set up the control consistent with Practical Project by according to the component parameters data of actual measurement, New Algorithm and control strategy
System model processed and parameter, more accurately to be controlled element.
(3) parameter identification system
Because nominal parameters have differences with physical device parameter.Consider on the basis of known parameters, it is negative based on actual measurement
The identification of the model structure and model parameter of lotus performance data, for meter and power distribution network impedance, motor, static load (ZIP)
The complete S LM models of equation, proposition parameter identification method, including Identification Strategy, initialization calculating process and reactive-load compensation, are given
Consider the model and identification process of frequency influence.
System structure parameter is finely adjusted.The feasibility of adjustment depends on following factor：
Measure the precision and real-time of component；
Each measurement point information while property；
The degree of redundancy of information；
(4) demonstration and display systems
Using module library, we can build the power distribution station system consistent with actual conditions, using visualization technique, should
Simulation software can show that power distribution station real-time operating conditions, voltage ＆ var control situation are.Dispatcher provide it is more vivid and
Intuitively visualized graphs, by the uninteresting data of operation of power networks with flexible, material objectization, dynamic mode expresses.By void
Intend reality technology to be shown, system operation personnel is directly obtained the high-level letter for disclosing operation of power networks trend and essence
Breath, can in time see clearly already present exception and potential accident potential, strengthen the assurance to power network macroscopic information.
2nd, Software Development Platform
Used for regional power office because the software of project development is mainly, for the idle improvement of rural power grids low-voltage provides ginseng
Examine.Consider the complexity of power system, using the power system block-set SimPowerSystem with Matlab, exploitation is described
Distribution area three-phase simulation software systems, can be capable of achieving the emulation of complication system without writing a large amount of VC codes.
The graphic user interface (graphical user interface, GUI) of MATLAB be by window, cursor, button,
The user interface that the objects such as menu, explanatory note (Object) are constituted.User is by certain method (such as mouse or key
Disk) select, activate these Drawing Objects, make computer produce certain to act or change, such as realize calculating, drawing etc..It is
Can the existing simulated program of insertion, again can the graphical result of emulation with the dynamical fashion of man-machine interaction be presented to operator or
Client, so as to give deep effect, while the invisibility of simulation code is provided for some colonies for being unfamiliar with Matlab
The possibility of operation interface.
This project plan simulation software with basic function below the gui interface function with MATLAB, exploitation：
The topological structure that * .slx or * the .mdl intelligent analysis drawn from user go out system and the information that can be measured
Quantity, correlation analysis is carried out for third party's Load Flow Program；
The various kinds of equipment quantity in system is automatically analyzed out, unified list is carried out by gui interface and parameter setting is carried out；
According to currently practical flow data, the accuracy of model is verified；
According to the actual conditions of system, give or forbid user to operate the authority of particular device；
Verification operation strategy validity.
In the present embodiment, carry out low-voltage monitoring, early warning platform technology research, using low-voltage monitoring, early warning as answer
With scene, carry out the application study of power distribution network big data.Be conducive to improving the utilization ratio of distribution big data, be conducive to raising to match somebody with somebody
Operation of power networks state and the order of accuarcy of power supply quality assessment, are conducive to improving prediction accuracy, are conducive to improving supplying power allocation water
It is flat, be conducive to improving distribution asset management level.With greatly construction value and practice significance, and can create considerable straight
Connect and indirectly economic benefit.
Embodiment two
It is corresponding with above method embodiment, a kind of line level voltage control system is present embodiments provided, refer to figure
5, line level voltage control system includes：Low-voltage monitoring and early warning platform 51, distribution area three-phase simulation software systems 52 and distribution
Net quality of voltage administers aid decision-making system 53.
Low-voltage monitoring and early warning platform 51, for collect power distribution network Zhong Tai areas to be controlled level scope working voltage data and
The working voltage data of line level scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data and
The working voltage data of line level scope are analyzed, and obtain low-voltage producing cause, harm, the influence to electric power meter
And low-voltage administer mechanism and prophylactico-therapeutic measures, and by the low-voltage producing cause, harm, the influence to electric power meter and
Low-voltage is administered mechanism and prophylactico-therapeutic measures and is sent to distribution area three-phase simulation software systems 52, and based on the power distribution network to be controlled
The Zhong Tai areas level working voltage data of scope and the working voltage data of line level scope and distribution network voltage quality controlling auxiliary
The quality of voltage of the generation of decision system 53 administers aid decision instruction, controls the line level equipment in the power distribution network to be controlled to enter
Row Reactive-power control act and voltage-regulation action, with improve load side and feeder terminal in the power distribution network to be controlled voltage and
It is idle.
The distribution area three-phase simulation software systems 52, based on using the low-voltage producing cause, harm, to electric energy
Mechanism and prophylactico-therapeutic measures are administered in the influence and low-voltage for measuring device, and risk-aversion control measure are carried out to the power distribution network to be controlled
Emulation testing is assessed with Risk-warning, simulation result is obtained, and the simulation result is sent to distribution network voltage quality controlling
Aid decision-making system 53.
The distribution network voltage quality controlling aid decision-making system 53, for from the low-voltage monitoring and early warning platform 51
Obtain the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled, and profit
With the operation of the simulation result and the working voltage data and line level scope of the level scope in power distribution network Zhong Tai areas to be controlled
Voltage data, generation quality of voltage administers aid decision instruction, and sends the quality of voltage and administer aid decision and instruct to institute
State low-voltage monitoring and early warning platform 51.
In the present embodiment, low-voltage monitoring and early warning platform 51 is specifically included：Line level pressure regulator and reactive voltage three-level
Joint debugging system.
Line level pressure regulator, for the voltage and nothing of load side and feeder terminal in the power distribution network to be controlled is monitored
Work(more in limited time, controls the reactive-load compensation equipment in the power distribution network to be controlled in line level scope to carry out switching operation, and
Reactive-load compensation equipment in the power distribution network to be controlled in line level scope is carried out after switching operation, is monitored again described to be controlled
Load side and feeder terminal is idle in power distribution network processed；
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled,
Controlling the line level equipment in the power distribution network to be controlled carries out voltage-regulation action；
If the result monitored again is that load side and the idle of feeder terminal are unsatisfactory for requiring in the power distribution network to be controlled,
The operation of monitoring result and the level scope in power distribution network Zhong Tai areas to be controlled is then reported to the reactive voltage three-level joint debugging system
The working voltage data of voltage data and line level scope.
The reactive voltage three-level joint debugging system, for based on the monitoring result and the power distribution network Zhong Tai areas to be controlled
The working voltage data and the working voltage data of line level scope of level scope, according to power transformation station level Reactive-power control strategy, regulation
Load side and feeder terminal is idle in the power distribution network to be controlled.
In the present embodiment, the line level pressure regulator, is additionally operable to the nothing in the low-voltage monitoring and early warning platform 51
Work(voltage three-level joint debugging system sends the working voltage number of voltage adjust request and the level scope in power distribution network Zhong Tai areas to be controlled
According to the working voltage data with line level scope；
The reactive voltage three-level joint debugging system, is additionally operable to respond the voltage adjust request, and based on described to be controlled
The power distribution network Zhong Tai areas level working voltage data of scope and the working voltage data of line level scope and the quality of voltage are administered
Aid decision is instructed, and regulating command of the generation for the line level pressure regulator and the regulation for the adjustable distribution transforming of line level refer to
Order, and the regulating command for line level pressure regulator to the line level pressure regulator is sent, transmission is described to be directed to line level
The regulating command of adjustable distribution transforming adjusts voltage change ratio to the adjustable distribution transforming of the line level with by the line level pressure regulator, described
The adjustable modified tone section voltage change ratio of line level.
In the present embodiment, the distribution area three-phase simulation software systems 52 include：Database, module library, parameter identification
System and demonstration and display systems.
In the present embodiment, line level voltage control system also includes：Generating means, for using the electricity with Matlab
Force system tool box SimPowerSystem, develops the distribution area three-phase simulation software systems 52.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part ginseng
See the part explanation of embodiment of the method.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", does not arrange
Except also there is other identical element in the process including the key element, method, article or equipment.
A kind of line level voltage control method provided herein and system are described in detail above, herein
Apply specific case to be set forth the principle and implementation method of the application, the explanation of above example is only intended to help
Understand the present processes and its core concept；Simultaneously for those of ordinary skill in the art, according to the thought of the application,
Will change in specific embodiments and applications, in sum, this specification content should not be construed as to this
The limitation of application.
Claims (10)
1. a kind of line level voltage control method, it is characterised in that including：
Low-voltage monitoring and early warning platform collects the working voltage data and line level scope of level scope in power distribution network Zhong Tai areas to be controlled
Working voltage data, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data and line level scope
Working voltage data be analyzed, obtain low-voltage producing cause, harm, the influence to electric power meter and low-voltage and control
Reason mechanism and prophylactico-therapeutic measures, and the low-voltage producing cause, harm, the influence to electric power meter and low-voltage are administered
Mechanism and prophylactico-therapeutic measures are sent to distribution area three-phase simulation software systems；
The distribution area three-phase simulation software systems utilize the low-voltage producing cause, harm, the shadow to electric power meter
Ring and low-voltage administers mechanism and prophylactico-therapeutic measures, risk-aversion control measure and Risk-warning are carried out to the power distribution network to be controlled
Assessment emulation testing, obtains simulation result, and the simulation result is sent to distribution network voltage quality controlling aid decision system
System；
The distribution network voltage quality controlling aid decision-making system obtains described to be controlled from the low-voltage monitoring and early warning platform
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas processed, and using the emulation knot
Fruit and the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled, generation
Quality of voltage administers aid decision instruction, and send the quality of voltage administer aid decision instruct it is pre- to low-voltage monitoring
Alert platform；
The low-voltage monitoring and early warning platform is based on the quality of voltage and administers aid decision instruction and the power distribution network to be controlled
The working voltage data and the working voltage data of line level scope of Zhong Tai areas level scope, in the control power distribution network to be controlled
Line level equipment carries out Reactive-power control action and voltage-regulation action, to improve load side and feeder line in the power distribution network to be controlled
The voltage of end and idle.
2. method according to claim 1, it is characterised in that the low-voltage monitoring and early warning platform is based on the voltage matter
The working voltage data and line level scope of amount improvement aid decision instruction and the level scope in power distribution network Zhong Tai areas to be controlled
Working voltage data, control the line level equipment in the power distribution network to be controlled to carry out Reactive-power control action and voltage-regulation and move
Make, including：
Line level pressure regulator voltage of load side and feeder terminal and idle out-of-limit in the power distribution network to be controlled is monitored
When, the reactive-load compensation equipment in the control power distribution network to be controlled in line level scope carries out switching operation, and described to be controlled
Reactive-load compensation equipment in power distribution network processed in line level scope is carried out after switching operation, and the power distribution network to be controlled is monitored again
Middle load side and feeder terminal it is idle；
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled, control
Line level equipment in the power distribution network to be controlled carries out voltage-regulation action；
If the result monitored again is that load side and the idle of feeder terminal are unsatisfactory for requiring in the power distribution network to be controlled, to
Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform reports monitoring result and the power distribution network to be controlled
The working voltage data and the working voltage data of line level scope of Zhong Tai areas level scope；
Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform is based on the monitoring result and described to be controlled
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas processed, it is idle according to power transformation station level
Regulation strategy, adjusts the idle of load side and feeder terminal in the power distribution network to be controlled.
3. method according to claim 2, it is characterised in that the line level equipment in the control power distribution network to be controlled is entered
Row voltage-regulation is acted, including：
Line level pressure regulator sends voltage and adjusts to the reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform
Request and the working voltage data and the working voltage data of line level scope of the level scope in power distribution network Zhong Tai areas to be controlled；
Reactive voltage three-level joint debugging system in the low-voltage monitoring and early warning platform responds the voltage adjust request, and is based on
The power distribution network Zhong Tai areas level working voltage data of scope to be controlled and the working voltage data of line level scope and the electricity
The aid decision instruction of pressure quality controlling, generation is for the regulating command of the line level pressure regulator and for the adjustable distribution transforming of line level
Regulating command, and send the regulating command for line level pressure regulator to the line level pressure regulator, send the pin
To the regulating command of the adjustable distribution transforming of line level to the adjustable distribution transforming of the line level, become with by line level pressure regulator regulation voltage
Than the adjustable modified tone section voltage change ratio of line level.
4. method according to claim 1, it is characterised in that the distribution area three-phase simulation software systems include：Data
Storehouse, module library, recognition system and demonstration and display systems.
5. method according to claim 4, it is characterised in that the generation of the distribution area three-phase simulation software systems
Journey, including：
Using the power system block-set SimPowerSystem with Matlab, the distribution area three-phase simulation software system is developed
System.
6. a kind of line level voltage control system, it is characterised in that including：
Low-voltage monitoring and early warning platform, working voltage data and line level for collecting level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of scope, and to be collected into power distribution network Zhong Tai areas to be controlled level scope working voltage data and line level
The working voltage data of scope are analyzed, and obtain low-voltage producing cause, harm, the influence to electric power meter and low electricity
Pressure administers mechanism and prophylactico-therapeutic measures, and by the low-voltage producing cause, harm, the influence to electric power meter and low-voltage
Administer mechanism and prophylactico-therapeutic measures is sent to distribution area three-phase simulation software systems, and based on the power distribution network Zhong Tai areas level to be controlled
The working voltage data of scope and the working voltage data of line level scope and distribution network voltage quality controlling aid decision-making system
The quality of voltage of generation administers aid decision instruction, controls the line level equipment in the power distribution network to be controlled to carry out Reactive-power control
Action and voltage-regulation action, to improve in the power distribution network to be controlled the voltage of load side and feeder terminal and idle；
The distribution area three-phase simulation software systems, for using the low-voltage producing cause, harm, to electric power meter
Influence and low-voltage administer mechanism and prophylactico-therapeutic measures, risk-aversion control measure and risk are carried out to the power distribution network to be controlled
Forewarn evaluation emulation testing, obtains simulation result, and the simulation result is sent to distribution network voltage quality controlling auxiliary determines
Plan system；
The distribution network voltage quality controlling aid decision-making system, for obtaining described from the low-voltage monitoring and early warning platform
The working voltage data and the working voltage data of line level scope of level scope in power distribution network Zhong Tai areas to be controlled, and using described imitative
The working voltage data and the working voltage data of line level scope of true result and the level scope in power distribution network Zhong Tai areas to be controlled,
Generate quality of voltage and administer aid decision instruction, and send the quality of voltage improvement aid decision and instruct to low-voltage prison
Survey early warning platform.
7. system according to claim 6, it is characterised in that the low-voltage monitoring and early warning platform includes：Line level is adjusted
Depressor and reactive voltage three-level joint debugging system；
The line level pressure regulator, for the voltage and nothing of load side and feeder terminal in the power distribution network to be controlled is monitored
Work(more in limited time, controls the reactive-load compensation equipment in the power distribution network to be controlled in line level scope to carry out switching operation, and
Reactive-load compensation equipment in the power distribution network to be controlled in line level scope is carried out after switching operation, is monitored again described to be controlled
Load side and feeder terminal is idle in power distribution network processed；
If the result monitored again is the idle satisfaction requirement of load side and feeder terminal in the power distribution network to be controlled, control
Line level equipment in the power distribution network to be controlled carries out voltage-regulation action；
If the result monitored again is that load side and the idle of feeder terminal are unsatisfactory for requiring in the power distribution network to be controlled, to
The reactive voltage three-level joint debugging system reports the working voltage of monitoring result and the level scope in power distribution network Zhong Tai areas to be controlled
The working voltage data of data and line level scope；
The reactive voltage three-level joint debugging system, for based on the monitoring result and the level model in power distribution network Zhong Tai areas to be controlled
The working voltage data and the working voltage data of line level scope enclosed, according to power transformation station level Reactive-power control strategy, regulation is described
Load side and feeder terminal is idle in power distribution network to be controlled.
8. system according to claim 7, it is characterised in that the line level pressure regulator, is additionally operable to the low-voltage
Reactive voltage three-level joint debugging system in monitoring and early warning platform sends voltage adjust request and the power distribution network Zhong Tai areas to be controlled
The working voltage data and the working voltage data of line level scope of level scope；
The reactive voltage three-level joint debugging system, is additionally operable to respond the voltage adjust request, and based on the distribution to be controlled
The Wang Zhongtai areas level working voltage data of scope and the working voltage data of line level scope and the quality of voltage administer auxiliary
Decision instruction, generation is directed to the regulating command and the regulating command for the adjustable distribution transforming of line level of the line level pressure regulator, and
The regulating command for line level pressure regulator is sent to the line level pressure regulator, sends described adjustable for line level
The regulating command of change adjusts voltage change ratio, the line level to the adjustable distribution transforming of the line level with by the line level pressure regulator
Adjustable modified tone section voltage change ratio.
9. system according to claim 6, it is characterised in that the distribution area three-phase simulation software systems include：Data
Storehouse, module library, recognition system and demonstration and display systems.
10. system according to claim 9, it is characterised in that also include：
Generating means, for using the power system block-set SimPowerSystem with Matlab, developing the distribution area
Three-phase simulation software systems.
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