CN104504199A - Workflow engine-based multi-time scale active distribution network interactive simulation method - Google Patents
Workflow engine-based multi-time scale active distribution network interactive simulation method Download PDFInfo
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- CN104504199A CN104504199A CN201410806004.9A CN201410806004A CN104504199A CN 104504199 A CN104504199 A CN 104504199A CN 201410806004 A CN201410806004 A CN 201410806004A CN 104504199 A CN104504199 A CN 104504199A
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Abstract
The invention provides a workflow engine-based multi-time scale active distribution network interactive simulation method. The method includes determining an initial section of an active distribution network simulation model; determining influence factors of the active distribution network interactive simulation; modeling functional unit simulation business; creating a simulation workflow template; controlling workflow simulation; subjecting a simulation control result to visual display. According to the arrangement, the workflow engine technique is adopted to overcome the defects that the traditional grid load flow analysis software fails to control time series flow, and interaction between the contingency process and the flow lacks, and accordingly stability, maintenance simplicity and elasticity control of business process are achieved.
Description
Technical field
The invention belongs to Simulating technique in Electric Power System field, be specifically related to a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine.
Background technology
Along with the appearance of the electrical network new elements such as distributed power source, energy storage device, microgrid, Demand Side Response load, propose new requirement to the operation of power distribution network with scheduling, the concept of active distribution network is arisen at the historic moment.The construction object of active distribution network promotes power distribution network to the digestion capability of distributed energy, reduce the peak-valley difference in power distribution network operational process and comprehensive network loss, meet user to the customized demand of high-quality for electricity consumption, promote the active participate ability that terminal user runs electric power system optimization, the equipment utilization potentiality of further excavation electric system, effectively promote comprehensive utilization of energy level.For realizing this goal, need when carrying out analogue simulation to the active distribution network containing distributed power source, because exerting oneself of distributed power source has instability and intermittent feature, need when carrying out simulation analysis to power distribution network to carry out performance analysis to the trend in some specific continuous times, abundant excavation contains feature and the rule of the active distribution network network operation of multiple distributed power source, power distribution network node is numerous simultaneously, topology is complicated, if adopt the whole network Load flow calculation, the needs calculated in real time probably cannot be met.Current state of electric distribution network is usually divided into Optimal State, normal condition, the state of alert, abnormality, malfunction, returns to form, island state etc., and power distribution network is under different states, and the Business Stream of control is not quite similar.
So-called workflow engine refers to the part of workflow as application system, and provides for it and determine that information transmits the Core Solution such as route, content rating to the determinative difference according to role, the division of labor and condition of each application system.Workflow engine comprises the critical function such as node administration, the flow direction management, the management of flow process sample of flow process.Develop according to service logic the programmed logic that corresponds to actual needs and guarantee its stability, ease for maintenance (modularization and structuring) and elasticity (easily making the variation in program according to the change of actual service logic, the novel service logic etc. that the change of such as right to make decision, the variation of institutional framework and the change due to traffic direction produce).Services Oriented Achitecture (service-oriented architecture, SOA), be a component model, it defines good interface between being served by these by the different function units (being called service) of application program and contract connects.Interface adopts neutral mode to carry out defining, and it should independent of hardware platform, operating system and the programming language realizing serving.Workflow engine makes to be structured in the service in various such system, can carry out alternately with a kind of unification and general mode.
Electric power system data markup language---E linguistic norm (hereinafter referred to as " E language ") is on the abstract basis of object-oriented of IEC 61970 – 301 electric system common data model CIM (Common Information Model), the data describing mode of facing relation traditional for electric system is combined with OO CIM, both the high-level efficiency of facing relation method had been remained, inherit the achievement in research that it is long-term, absorb again the advantage (inheritance etc. as class) of object-oriented method, have succinct, the efficient feature with being applicable to electric system.Simulation software at present for power transmission network supports cime form, but the emulation of power distribution network does not also have unified standard, analogue system can export easily and recording strip time target trend profile data, the record problem of the electric network swim profile data of continuous time series can well be solved.
Summary of the invention
Coordinate alternately for lacking in active distribution network sequential Power flow simulation process, corresponding chain reaction can not be simulated, the simultaneously problem such as management relative loose of each sub-application module of actual distribution network system, the invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, have employed workflow engine technology, traditional electric network swim analysis software can be solved lack time series power flowcontrol, and forecast accident process and trend lack interactive shortcoming, achieve operation flow stability, ease for maintenance and controller perturbation.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, said method comprising the steps of:
Step 1: the initial section determining active distribution network realistic model;
Step 2: the influence factor determining active distribution network interactive simulation;
Step 3: the modeling of functional module artificial service;
Step 4: create simulation work flow template;
Step 5: carry out work flow controlling control;
Step 6: visual presentation is carried out to Simulation Control result.
In described step 1, by the initial section of the service data determination active distribution network model of active distribution network model and active distribution network, the service data of active distribution network model and active distribution network adopts extendible CIM/E text formatting.
Described active distribution network realistic model comprises substation model, distribution substation model, feeder line model, bus model, substation transformer model, feeder line section model, generator model, load model, switch models and disconnecting link model;
The service data of active distribution network comprises meritorious, idle, electric current, the voltage of power equipment and deciliter state of switch and disconnecting link.
In described step 2, influence factor comprises super short period load fluctuation data section, Short Term Generation Schedules data section, mid-term have a power failure planning data section, Mid-long Term Load typical case day curve data section, illumination on the impact of photovoltaic generation and wind-force on the impact of wind-power electricity generation.
In described step 3, by the internal logic criterion of custom feature assembly, coding algorithm realization logic, the artificial service modeling of practical function assembly; Functional module comprises backup auto-activating device, low all low-voltage load sheding devices, auto voltage control device and micro-capacitance sensor controller.
In described step 4, by work process flow design tool building work flow template, and by workflow template management tools manage workflow template; Work process flow design tool, by the XML file in read work stream engine, generates corresponding process action node after analyzing XML file, and arranges corresponding process action nodal community, and is illustrated in work process flow design tool.
Workflow template comprises normal condition workflow template, state of alert workflow template, abnormality workflow template, malfunction workflow template, island state workflow template and emulation Custom Workflow template;
Workflow template management tool carries out inquiring about and manage to workflow template, comprises issuing flow process, stop announced flow process, hanging up the flow process that the flow process run and recovery be suspended.
In described step 5, analogue system is according to workflow template, utilization state evaluation services obtains the real-time status of current active distribution network, real-time status comprises normal condition, the state of alert, abnormality, malfunction and island state, the service of workflow engine Automatically invoked state estimation and state estimation strategy, to finish the work stream Simulation Control, obtain Simulation Control result.
In described step 6, to the analysis of active distribution network network operation characteristic, and tidal current chart, efficiency map, curve map, pie chart or excellent figure is utilized to carry out visual presentation to Simulation Control result.
Compared with prior art, beneficial effect of the present invention is:
1. the initial section of active distribution network simulation modeling adopts extendible CIM/E text formatting, ensure that the standardization of emulation and good extendability;
2. the influence factor that active distribution network emulation prepares has taken into full account Multiple Time Scales, realizes artificial service modeling, ensure that authenticity and the accuracy of emulation by self-defining electric system functional module;
3. the flow process of active distribution network Simulation Control have employed workflow engine technology, workflow template ensure that the availability of analogue system, mitigation system maintenance cost, traditional electric network swim analysis software can be solved and lack shortcoming time series power flowcontrol and simulation process and trend being lacked to interaction, ensure that the stability of active distribution network artificial service flow process, ease for maintenance and controller perturbation.
Accompanying drawing explanation
Fig. 1 is the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic process flow diagram based on workflow engine in the embodiment of the present invention;
Fig. 2 is work flow engine management process flow diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Coordinate alternately for lacking in active distribution network sequential Power flow simulation process, corresponding chain reaction can not be simulated, the problem of the management relative loose of each sub-application module of actual distribution network system simultaneously, to inlet wire automatic throw-in equipment for subsequent use (abbreviation prepared auto restart), low all low-voltage load sheding devices, the automatic safety device of anti-island protect device and so on carries out the modeling of functional module service logic, by yardman in simulation process by arranging simulated events, simulated events mainly comprises normal switch operation, abnormal failure is arranged, automatically the closed-loop simulation of active distribution network is realized, finally call the weak link of Load flow calculation determination electrical network, by introduce workflow engine realize to the flexible customization of Business Stream under different scene (as to senior applied analysis assembly as risk-assessment, protect electroanalysis, changeable assembling is carried out in assembly and the service of Load flow calculation and so on real-time analysis class), according to the different conditions of power distribution network have for carrying out strategy process, time power distribution network simulation result is write, and the final expression directly perceived providing power distribution network simulation result in visual man-machine interface, the preparation of emulation teaching notes extends a kind of for power distribution network CIM/E file layout, simulation process considers the turnaround plan of short-term and the impact of generation schedule, also utilize the fluctuation of the true load of ultra-short term digital simulation user, more real decision references can be provided for yardman, improve the processing power of reply power grid accident, the simulated effect that final realization is more true to nature.
As Fig. 1, the invention provides a kind of Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine, said method comprising the steps of:
Step 1: the initial section determining active distribution network realistic model;
Step 2: the influence factor determining active distribution network interactive simulation;
Step 3: the modeling of functional module artificial service;
Step 4: create simulation work flow template;
Step 5: carry out work flow controlling control;
Step 6: visual presentation is carried out to Simulation Control result.
In described step 1, by the initial section of the service data determination active distribution network model of active distribution network model and active distribution network, the service data of active distribution network model and active distribution network adopts extendible CIM/E text formatting.
Described active distribution network realistic model comprises substation model, distribution substation model, feeder line model, bus model, substation transformer model, feeder line section model, generator model, load model, switch models and disconnecting link model;
The service data of active distribution network comprises meritorious, idle, electric current, the voltage of power equipment and deciliter state of switch and disconnecting link.
In described step 2, influence factor comprises super short period load fluctuation data section, Short Term Generation Schedules data section, mid-term have a power failure planning data section, Mid-long Term Load typical case day curve data section, illumination on the impact of photovoltaic generation and wind-force on the impact of wind-power electricity generation.
Step 2 specifically comprises the following steps:
Step 2-1: the data message section that generation schedule is set.The active reactive power data of the generator of section continuous time is set, the generating change in analog simulation process.
Step 2-2: arrange power failure plan and sequential load data, arranges the active reactive power data of the load of section continuous time, the load fluctuation in analog simulation process.Ultra-short term software Aided Generation load data a few days ago can be utilized, utilize Mid-long term load forecasting software Aided Generation Mid-long Term Load data, meet the needs of sequential load data under Different time scales.
Step 2-3: environmental characteristic information is set.Environmental classes scene information is set, as the weather information of geography information, wind-force and illumination.
Step 2-4: dispatching running way event is arranged.Deciliter action message of target switch and disconnecting link when band is set, target failure message when single band is set.Event information comprises event generation time, incident duration, event generation equipment, event type, the logic association information between event.
In described step 3, by the internal logic criterion of custom feature assembly, coding algorithm realization logic, the artificial service modeling of practical function assembly; Functional module comprises backup auto-activating device, low all low-voltage load sheding devices, auto voltage control device and micro-capacitance sensor controller.
In described step 4, by work process flow design tool building work flow template, and by workflow template management tools manage workflow template; Work process flow design tool, by the XML file in read work stream engine, generates corresponding process action node after analyzing XML file, and arranges corresponding process action nodal community, and is illustrated in work process flow design tool.
Workflow template comprises normal condition workflow template, state of alert workflow template, abnormality workflow template, 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, calls Load flow calculation service, network reconfiguration service, comprehensive warning service, AVC.
Abnormality workflow template, calls Load flow calculation service, risk assessment service, comprehensive warning service, AVC.
Malfunction workflow template, calls network reconfiguration service, power failure range Analysis Service, protects electroanalysis service, critical load protects electricity service, scheme performs service, comprehensive warning service, AVC.
Island state workflow template, calls that critical load protects electricity service, scheme performs service, comprehensive warning service, AVC, microgrid control subsystem.
Emulation Custom Workflow template, emulate teacher in visual work process flow designer according to the needs of actual emulation scene service, by pulling establishment and modification process, by flow process edit tool, realize the self-defined deployment of simulation work stream, flow process edit tool comprises assignment strategy, the artificial service workflow management strategy of task, and these two strategies finally realize the assignment of task and the process control of flow process.
As Fig. 2, workflow template management tool carries out inquiring about and manage to workflow template, comprises issuing flow process, stop announced flow process, hanging up the flow process that the flow process run and recovery be suspended.
In described step 5, analogue system is according to workflow template, utilization state evaluation services obtains the real-time status of current active distribution network, real-time status comprises normal condition, the state of alert, abnormality, malfunction and island state, the service of workflow engine Automatically invoked state estimation and state estimation strategy, to finish the work stream Simulation Control, obtain Simulation Control result.
In described step 6, to the analysis of active distribution network network operation characteristic, and tidal current chart, efficiency map, curve map, pie chart or excellent figure is utilized to carry out visual presentation to Simulation Control result.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field still can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.
Claims (9)
1., based on the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic of workflow engine, it is characterized in that: said method comprising the steps of:
Step 1: the initial section determining active distribution network realistic model;
Step 2: the influence factor determining active distribution network interactive simulation;
Step 3: the modeling of functional module artificial service;
Step 4: create simulation work flow template;
Step 5: carry out work flow controlling control;
Step 6: visual presentation is carried out to Simulation Control result.
2. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 1, by the initial section of the service data determination active distribution network model of active distribution network model and active distribution network, the service data of active distribution network model and active distribution network adopts extendible CIM/E text formatting.
3. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 2, is characterized in that: described active distribution network realistic model comprises substation model, distribution substation model, feeder line model, bus model, substation transformer model, feeder line section model, generator model, load model, switch models and disconnecting link model;
The service data of active distribution network comprises meritorious, idle, electric current, the voltage of power equipment and deciliter state of switch and disconnecting link.
4. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 2, influence factor comprise super short period load fluctuation data section, Short Term Generation Schedules data section, mid-term have a power failure planning data section, Mid-long Term Load typical case day curve data section, illumination on the impact of photovoltaic generation and wind-force on the impact of wind-power electricity generation.
5. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 3, by the internal logic criterion of custom feature assembly, coding algorithm realization logic, the artificial service modeling of practical function assembly; Functional module comprises backup auto-activating device, low all low-voltage load sheding devices, auto voltage control device and micro-capacitance sensor controller.
6. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 4, by work process flow design tool building work flow template, and by workflow template management tools manage workflow template; Work process flow design tool, by the XML file in read work stream engine, generates corresponding process action node after analyzing XML file, and arranges corresponding process action nodal community, and is illustrated in work process flow design tool.
7. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 6, is characterized in that: workflow template comprises normal condition workflow template, state of alert workflow template, abnormality workflow template, malfunction workflow template, island state workflow template and emulation Custom Workflow template;
Workflow template management tool carries out inquiring about and manage to workflow template, comprises issuing flow process, stop announced flow process, hanging up the flow process that the flow process run and recovery be suspended.
8. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 5, analogue system is according to workflow template, utilization state evaluation services obtains the real-time status of current active distribution network, real-time status comprises normal condition, the state of alert, abnormality, malfunction and island state, the service of workflow engine Automatically invoked state estimation and state estimation strategy, to finish the work stream Simulation Control, obtain Simulation Control result.
9. the Multiple Time Scales active distribution network Interactive Simulation Methods of Scenic based on workflow engine according to claim 1, it is characterized in that: in described step 6, to the analysis of active distribution network network operation characteristic, and tidal current chart, efficiency map, curve map, pie chart or excellent figure is utilized to carry out visual presentation to Simulation Control result.
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