CN104504199B - Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine - Google Patents
Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine Download PDFInfo
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Abstract
The present invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, comprises the following steps：Determine the initial section of active distribution network simulation model；Determine the influence factor of active distribution network interactive simulation；The modeling of functional unit artificial service；Create simulation work flow template；It is operated stream Simulation Control；Simulation Control result is visualized.Present invention employs workflow engine technology, can solve the problem that traditional electric network swim analysis software lacks and lacks the shortcomings that interactive with trend to time series power flowcontrol, and forecast accident process, realizes operation flow stability, ease for maintenance and controller perturbation.
Description
Technical field
The invention belongs to Simulating technique in Electric Power System field, and in particular to a kind of Multiple Time Scales based on workflow engine
Active distribution network Interactive Simulation Methods of Scenic.
Background technology
With the appearance of the power network new elements such as distributed power source, energy storage device, microgrid, Demand Side Response load, to distribution
The operation of net proposes new requirement with scheduling, and the concept of active distribution network is arisen at the historic moment.The construction object of active distribution network is
Digestion capability of the power distribution network to distributed energy is lifted, the peak-valley difference in power distribution network running and comprehensive network loss is reduced, meets
User supplies high-quality the customized demand of electricity consumption, promotes terminal user to be actively engaged in ability to what electric power system optimization was run, enters
One step excavates the equipment utilization potentiality of power system, and it is horizontal effectively to lift comprehensive utilization of energy.To realize this target, it is necessary to right
When carrying out analogue simulation to the active distribution network containing distributed power source, because the output of distributed power source has unstability
And intermittent feature, need to enter Mobile state to the trend in some specific continuous times when carrying out simulation analysis to power distribution network
Analysis, it is abundant to excavate the characteristics of active distribution network network operation for containing a variety of distributed power sources and rule, while power distribution network section
Numerous, the topological complexity of point, if using the whole network Load flow calculation, can not probably meet the needs calculated in real time.State of electric distribution network at present
Optimal State, normal condition, the state of alert, abnormality, malfunction, recovery state, island state etc. are typically divided into, is matched somebody with somebody
In the state of difference, the Business Stream of control is not quite similar power network.
So-called workflow engine refers to a part of the workflow as application system, and provided has to each application system
Decisive action determines the Core Solutions such as information transmission route, content rating according to the different of role, the division of labor and condition.Work
Making stream engine includes the critical functions such as the node administration of flow, flow direction management, flow sample management.Developed according to service logic
The programmed logic that corresponds to actual needs simultaneously ensures its stability, ease for maintenance (modularization and structuring) and elastic (easy basis
The variation in program is made in the change of actual service logic, such as the change of decision-making power, the variation of institutional framework and due to business
Novel service logic etc. caused by the change in direction).Services Oriented Achitecture (service-oriented
Architecture, SOA), it is a component model, the different function units (referred to as servicing) of application program are passed through these by it
Good interface is defined between service and contract connects.Interface is defined by the way of neutral, and it should be only
Stand on hardware platform, operating system and the programming language of the service of realization.Workflow engine causes structure in various such systems
In service, can by a kind of unification and it is general in a manner of interact.
Electric power system data markup language --- E linguistic norms (hereinafter referred to as " E language ") are in the electricity of IEC 61970-301
On the basis of Force system common data model CIM (Common Information Model) object-oriented is abstract, by power train
The data describing mode of traditional facing relation of uniting is combined with the CIM of object-oriented, has both remained the height of facing relation method
Efficiency, its long-term achievement in research is inherited, the advantages of absorbing object-oriented method again (inheritance of such as class), there is letter
It is clean, efficiently and the characteristics of suitable for power system.Cime forms, but power distribution network are supported currently for the simulation software of power transmission network
Emulation does not have unified standard also, and target trend profile data when analogue system can easily export simultaneously record paper can be fine
The record for solving the problems, such as the electric network swim profile data of continuous time series.
The content of the invention
Coordinate interaction for lacking during active distribution network sequential Power flow simulation, it is impossible to simulate corresponding chain reaction, together
The problems such as management relative loose of each sub-application module of Shi Shiji distribution network systems, the present invention provide one kind and are based on workflow engine
Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic, employ workflow engine technology, can solve the problem that traditional power network tide
Flow analysis software to lack to time series power flowcontrol, and the shortcomings that forecast accident process and interactive trend shortage, realize
Operation flow stability, ease for maintenance and controller perturbation.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that：
The present invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, the side
Method comprises the following steps：
Step 1：Determine the initial section of active distribution network simulation model；
Step 2：Determine the influence factor of active distribution network interactive simulation；
Step 3：The modeling of functional unit artificial service；
Step 4：Create simulation work flow template；
Step 5：It is operated stream Simulation Control；
Step 6：Simulation Control result is visualized.
In the step 1, active distribution network mould is determined by the service data of active distribution network model and active distribution network
The service data of the initial section of type, active distribution network model and active distribution network uses expansible CIM/E text formattings.
The active distribution network simulation model includes substation model, power distribution station model, feeder line model, bus model, distribution
Transformer model, feeder line segment model, generator model, load model, switch models and disconnecting link model；
The service data of active distribution network includes the active and reactive of power equipment, electric current, voltage, and switch and disconnecting link
Division state.
In the step 2, influence factor include super short period load fluctuation data section, Short Term Generation Schedules data section,
Mid-term power failure planning data section, Mid-long Term Load typical case's day curve data section, influence and wind of the illumination to photovoltaic generation
Influence of the power to wind-power electricity generation.
In the step 3, by the internal logic criterion of custom feature component, write programmed algorithm and realize logic, it is real
The artificial service modeling of existing functional unit；Functional unit includes backup auto-activating device, low all low-voltage load sheding devices, automatic voltage is idle
Controller and micro-capacitance sensor controller.
In the step 4, workflow template is created by work process flow design tool, and pass through workflow template management
Tool management workflow template；Work process flow design tool passes through the XML file in read work stream engine, parsing XML texts
Corresponding process action node is generated after part, and corresponding process action nodal community is set, and is illustrated in work process flow and sets
In meter instrument.
Workflow template includes normal condition workflow template, state of alert workflow template, abnormality workflow mould
Plate, malfunction workflow template, island state workflow template and emulation Custom Workflow template；
Workflow template management tool is inquired about and managed to workflow template, including issue flow, stopping have been issued
Flow, hang up the flow that is currently running and recover the flow being suspended.
In the step 5, analogue system services to obtain current active distribution network according to workflow template using state estimation
Real-time status, real-time status includes normal condition, the state of alert, abnormality, malfunction and island state, and workflow is drawn
Automatic calling state estimation service and state estimation strategy are held up, work flow controlling control is completed, obtains Simulation Control result.
In the step 6, the analysis to active distribution network network operation characteristic, and utilize tidal current chart, efficiency map, curve
Figure, pie chart or rod figure visualize to Simulation Control result.
Compared with prior art, the beneficial effects of the present invention are：
1. the initial section of active distribution network simulation modeling uses expansible CIM/E text formattings, emulation ensure that
Normative and good autgmentability；
2. the influence factor that active distribution network emulation prepares has taken into full account Multiple Time Scales, pass through customized power train
System functional unit realizes that artificial service models, and ensure that the authenticity and accuracy of emulation；
3. the flow of active distribution network Simulation Control employs workflow engine technology, workflow template ensure that emulation system
The availability of system, mitigate system maintenance cost, can solve the problem that traditional electric network swim analysis software lacks to time series trend
Control and simulation process and trend lack the shortcomings that interactive, ensure that the stability, easily of active distribution network artificial service flow
Maintainability and controller perturbation.
Brief description of the drawings
Fig. 1 is the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic stream based on workflow engine in the embodiment of the present invention
Cheng Tu；
Fig. 2 is work flow engine management flow chart in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Coordinate interaction for lacking during active distribution network sequential Power flow simulation, it is impossible to simulate corresponding chain reaction, together
The problem of management relative loose of each sub-application module of Shi Shiji distribution network systems, to standby inlet wire automatic throw-in equipment (referred to as
Prepared auto restart), low all low-voltage load sheding devices, the automatic safety device of anti-isolated island protection device etc carry out functional unit service logic
Modeling, by simulation process, for dispatcher by setting simulated events, simulated events mainly include normal switch operation, exception
Failure is set, and realizes the closed-loop simulation of active distribution network automatically, is finally called Load flow calculation to determine the weak link of power network, is passed through
Workflow engine is introduced to realize to the flexible customization of Business Stream under different scenes (such as to advanced applied analysis component such as risk assessment
Analysis, protecting electroanalysis, Load flow calculation etc, the component of analysis classes and service carry out changeable assembling in real time), according to power distribution network not
There is the carry out strategy processing being directed to state, when power distribution network simulation result is write, and finally given in visualization man-machine interface
Go out the expression directly perceived of power distribution network simulation result, emulate teaching notes preparation extend it is a kind of be used for power distribution network CIM/E file formats, it is imitative
True process considers the influence of short-term repair schedule and generation schedule, also true using ultra-short term digital simulation user
The fluctuation of real load, more real decision references can be provided for dispatcher, improve the disposal ability of reply power grid accident, it is final real
Simulated effect now more true to nature.
Such as Fig. 1, the present invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine,
It the described method comprises the following steps：
Step 1：Determine the initial section of active distribution network simulation model；
Step 2：Determine the influence factor of active distribution network interactive simulation；
Step 3：The modeling of functional unit artificial service；
Step 4：Create simulation work flow template；
Step 5：It is operated stream Simulation Control；
Step 6：Simulation Control result is visualized.
In the step 1, active distribution network mould is determined by the service data of active distribution network model and active distribution network
The service data of the initial section of type, active distribution network model and active distribution network uses expansible CIM/E text formattings.
The active distribution network simulation model includes substation model, power distribution station model, feeder line model, bus model, distribution
Transformer model, feeder line segment model, generator model, load model, switch models and disconnecting link model；
The service data of active distribution network includes the active and reactive of power equipment, electric current, voltage, and switch and disconnecting link
Division state.
In the step 2, influence factor include super short period load fluctuation data section, Short Term Generation Schedules data section,
Mid-term power failure planning data section, Mid-long Term Load typical case's day curve data section, influence and wind of the illumination to photovoltaic generation
Influence of the power to wind-power electricity generation.
Step 2 specifically includes following steps：
Step 2-1：The data message section of generation schedule is set.The active reactive of the generator of continuous time section is set
Power data, the generating change during analog simulation.
Step 2-2：Have a power failure plan and sequential load data are set, the active reactive work(of the load of continuous time section is set
Rate data, the load fluctuation during analog simulation.Load data a few days ago is generated using ultra-short term software auxiliary,
Generation Mid-long Term Load data are aided in using Mid-long term load forecasting software, meet sequential load data under different time scales
Need.
Step 2-3：Environmental characteristic information is set.Environmental classes scene information is set, such as geography information, wind-force and the gas of illumination
Image information.
Step 2-4：Dispatching running way event is set.The division action message of target switch and disconnecting link when band is set, if
Target fault message when putting single band.Event information includes event generation time, incident duration, event occurrence of equipment, thing
Part type, the logic association information between event.
In the step 3, by the internal logic criterion of custom feature component, write programmed algorithm and realize logic, it is real
The artificial service modeling of existing functional unit；Functional unit includes backup auto-activating device, low all low-voltage load sheding devices, automatic voltage is idle
Controller and micro-capacitance sensor controller.
In the step 4, workflow template is created by work process flow design tool, and pass through workflow template management
Tool management workflow template；Work process flow design tool passes through the XML file in read work stream engine, parsing XML texts
Corresponding process action node is generated after part, and corresponding process action nodal community is set, and is illustrated in work process flow and sets
In meter instrument.
Workflow template includes normal condition workflow template, state of alert workflow template, abnormality workflow mould
Plate, malfunction workflow template, island state workflow template and emulation Custom Workflow template；
Normal condition workflow template, calls Load flow calculation service, can call Analysis for Closed Loop service during Loop Closing Operation.
State of alert workflow template, call Load flow calculation service, network reconfiguration service, comprehensive warning service, AVC.
Abnormality workflow template, call Load flow calculation service, risk assessment service, comprehensive warning service, AVC.
Malfunction workflow template, network reconfiguration service, power failure range Analysis Service are called, electroanalysis service is protected, closes
Key load protects electricity service, scheme performs service, comprehensive warning service, AVC.
Island state workflow template, call critical load protect electricity service, scheme perform service, comprehensive warning service,
AVC, microgrid control subsystem.
Custom Workflow template is emulated, emulation teacher is in visual work process flow designer according to actual emulation
The needs of scene service, by pulling establishment and modification process, by flow edit tool, realize the self-defined of simulation work stream
Deployment, flow edit tool include the assignment strategy of task, artificial service workflow management strategy, and the two strategies are final real
The assignment of current task and the process control of flow.
Such as Fig. 2, workflow template management tool is inquired about and managed to workflow template, including issue flow, stopping
The flow and recover the flow being suspended that announced flow, hang-up are currently running.
In the step 5, analogue system services to obtain current active distribution network according to workflow template using state estimation
Real-time status, real-time status includes normal condition, the state of alert, abnormality, malfunction and island state, and workflow is drawn
Automatic calling state estimation service and state estimation strategy are held up, work flow controlling control is completed, obtains Simulation Control result.
In the step 6, the analysis to active distribution network network operation characteristic, and utilize tidal current chart, efficiency map, curve
Figure, pie chart or rod figure visualize to Simulation Control result.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field with reference to above-described embodiment still can to the present invention embodiment modify or
Equivalent substitution, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent substitution
Within bright claims.
Claims (1)
1. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, it is characterised in that：Methods described bag
Include following steps：
Step 1：Determine the initial section of active distribution network simulation model；
Step 2：Determine the influence factor of active distribution network interactive simulation；
Step 3：The modeling of functional unit artificial service；
Step 4：Create simulation work flow template；
Step 5：It is operated stream Simulation Control；
Step 6：Simulation Control result is visualized；
In the step 1, active distribution network model is determined by the service data of active distribution network model and active distribution network
The service data of initial section, active distribution network model and active distribution network uses expansible CIM/E text formattings；
The active distribution network simulation model includes substation model, power distribution station model, feeder line model, bus model, distribution transformer
Device model, feeder line segment model, generator model, load model, switch models and disconnecting link model；
The service data of active distribution network includes the active and reactive of power equipment, electric current, voltage, and point of switch and disconnecting link
Conjunction state；
In the step 2, influence factor includes super short period load fluctuation data section, Short Term Generation Schedules data section, mid-term
Power failure planning data section, Mid-long Term Load typical case's day curve data section, influence and wind-force pair of the illumination to photovoltaic generation
The influence of wind-power electricity generation；
In the step 3, by the internal logic criterion of custom feature component, write programmed algorithm and realize logic, realize work(
The artificial service modeling of energy component；Functional unit includes backup auto-activating device, low all low-voltage load sheding devices, auto voltage control
Device and micro-capacitance sensor controller；
In the step 4, workflow template is created by work process flow design tool, and pass through workflow template management tool
Management work flow template；Work process flow design tool is by the XML file in read work stream engine, after parsing XML file
Corresponding process action node is generated, and corresponding process action nodal community is set, and is illustrated in work process flow design work
In tool；
Workflow template includes normal condition workflow template, state of alert workflow template, abnormality workflow template, event
Hinder operation flow template, island state workflow template and emulation Custom Workflow template；
Workflow template management tool is inquired about and managed to workflow template, including issue flow, the announced stream of stopping
The flow and recover the flow being suspended that journey, hang-up are currently running；
In the step 5, analogue system services to obtain the reality of current active distribution network according to workflow template using state estimation
When state, real-time status includes normal condition, the state of alert, abnormality, malfunction and island state, workflow engine from
It is dynamic to call state estimation service and state estimation strategy, work flow controlling control is completed, obtains Simulation Control result；
In the step 6, the analysis to active distribution network network operation characteristic, and using tidal current chart, efficiency map, curve map,
Pie chart or rod figure visualize to Simulation Control result.
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| CN112100544B (en) * | 2020-09-07 | 2023-03-28 | 贵州电网有限责任公司 | Spare power automatic switching installation device and spare power automatic switching action logic monitoring technology visualization method |
| CN112287504B (en) * | 2020-12-25 | 2021-04-20 | 中国电力科学研究院有限公司 | Offline/online integrated simulation system and method for power distribution network |
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| CN102081867A (en) * | 2010-05-24 | 2011-06-01 | 北京科东电力控制***有限责任公司 | All-digital high-voltage direct current transmission training stimulation system |
| CN102903063A (en) * | 2012-09-19 | 2013-01-30 | 中国电力科学研究院 | Integral electricity market operation system |
| CN102957204A (en) * | 2012-02-08 | 2013-03-06 | 深圳市金宏威技术股份有限公司 | Intelligent simulation method and system of power distribution network terminal |
| CN104091014A (en) * | 2014-07-02 | 2014-10-08 | 国家电网公司 | Power flow simulation control method based on time series |
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| US20040153303A1 (en) * | 2002-12-30 | 2004-08-05 | Le Tang | Efficient process for time dependent network model in an energy market simulation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102081867A (en) * | 2010-05-24 | 2011-06-01 | 北京科东电力控制***有限责任公司 | All-digital high-voltage direct current transmission training stimulation system |
| CN102957204A (en) * | 2012-02-08 | 2013-03-06 | 深圳市金宏威技术股份有限公司 | Intelligent simulation method and system of power distribution network terminal |
| CN102903063A (en) * | 2012-09-19 | 2013-01-30 | 中国电力科学研究院 | Integral electricity market operation system |
| CN104091014A (en) * | 2014-07-02 | 2014-10-08 | 国家电网公司 | Power flow simulation control method based on time series |
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