WO2023029388A1 - 一种基于cim模型的配电网辅助规划方法及*** - Google Patents
一种基于cim模型的配电网辅助规划方法及*** Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06313—Resource planning in a project environment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06F2113/00—Details relating to the application field
- G06F2113/04—Power grid distribution networks
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
Definitions
- the present application relates to the technical field of distribution network planning, in particular to a method and system for distribution network auxiliary planning based on a CIM model.
- the distribution network planning process is mainly divided into the collection of original data, the determination of possible distribution planning schemes, the economic evaluation and the determination of the best distribution planning scheme.
- Network planning scheme At present, distribution network planners need to determine the possible distribution network planning scheme based on experience, and then conduct on-site surveys several times to adjust the scheme, which is time-consuming, laborious, and inefficient.
- the graphic element itself has no electrical connection relationship, and needs to use other electrical calculation tools for modeling and electrical verification of the planning scheme. The process is cumbersome, the synchronization is poor, and the interaction with other power systems cannot be realized. At the same time, geographic information and planning tools are lacking and comprehensive. Restricts the work efficiency of planners.
- the present application provides a distribution network auxiliary planning method and system based on a CIM model, which are used to solve the above-mentioned technical problems of poor synchronization and interaction of distribution network planning and low work efficiency.
- the first aspect of the present application provides a distribution network auxiliary planning method based on the CIM model, including the following steps:
- the distribution network equipment parameters include equipment type, equipment coordinates and corresponding equipment parameters;
- step S2 specifically includes:
- S202 read the CIM/XML file to obtain all Document objects, search for all nodes in the CIM model through a node traverser, store the text and attributes corresponding to the nodes in json format, and the nodes include device nodes representing device types and terminal nodes that represent device connection relationships.
- step S3 specifically includes:
- connection nodes of the conductive devices into topological nodes according to the model connection relationship of the CIM model, and load the topological nodes into the stack space;
- step S304 Determine whether the stack space is empty according to the topology node, if it is judged that the stack space is not empty, execute step S305, if it is judged that the stack space is empty, the program ends;
- the calculation results of the typical daily power flow of the feeder include the operating voltage, operating current, apparent power, line loss and load rate of the feeder section and all transformers under the feeder.
- the distribution network reliability index value includes the system average power outage frequency index, the user average power outage frequency index and the power shortage index.
- step S6 specifically includes:
- the topology Information includes device coordinates, device type, and device parameters;
- step S7 specifically includes:
- step S8 specifically includes:
- the type of the planned line is the cable line
- the route point and the end point of the line corridor by obtaining the geographical map tile information, and follow the starting point equipment, the route point and the route point according to the original topology of the distribution network. Arrange the poles and connect the lines at the end of the above-mentioned lines, so as to determine the planning of the line corridor;
- step S8 include:
- step S11 Comparing the calculation result of the typical daily power flow of the newly added feeder with the calculation result of the typical daily power flow of the feeder, judging according to the comparison result whether the calculation result of the typical daily power flow of the newly added feeder satisfies the first comparison threshold, and comparing the The new distribution network reliability index value is compared with the distribution network reliability index value, and it is judged according to the comparison result whether the new distribution network reliability index value satisfies the second comparison threshold, if the above two comparison results All satisfied, then perform step S12, if any of the above-mentioned comparison results are not satisfied, then re-execute step S9 to re-establish analog route planning;
- the present invention also provides a distribution network auxiliary planning system based on a CIM model, including:
- the storage module is used to store the distribution network equipment parameters and topology information in the text and attributes of the nodes in the CIM model of the distribution network system in the form of a CIM/XML file.
- the distribution network equipment parameters include equipment type, equipment Coordinates and corresponding device parameters;
- the traversal module is used for traversing and searching all nodes and their corresponding texts and attributes based on the CIM model of the distribution network system;
- a topology module configured to traverse all nodes and their topological connections in the CIM model based on a depth-first search algorithm to obtain a feeder topology path, thereby constructing the original topology of the distribution network;
- the power flow calculation module is used for the power flow calculation method based on forwarding and back generation.
- the original topology structure of the distribution network is used as the topology input, and the typical daily load of the feeder current year is used as the load input to perform power flow calculation, and the typical daily power flow calculation of the feeder is obtained. result;
- the reliability calculation module is used for calculation based on the fault diffusion method, using the original topology of the distribution network as a topology input, and calling the number of low-voltage users of users in the marketing system as user input to obtain the reliability index value of the distribution network ;
- the wiring map mapping module is used to obtain map tile information based on the map database, load the target distribution network area map, and map the original topology structure of the distribution network to the target distribution network area map to obtain feeder geographic wiring picture;
- a rendering module configured to call a rendering interface to load the calculation result of the typical daily power flow of the feeder in the geographical wiring diagram of the feeder, and load the reliability index value of the distribution network to a predetermined area of the geographical wiring diagram of the feeder;
- a line planning module configured to perform line corridor planning on the feeder based on the geographical wiring diagram of the feeder, so as to complete the line planning.
- the present invention has the following advantages:
- the invention stores the distribution network equipment parameters and topology information in the operating state and planning state in the form of CIM/XML files, so that it can interact with other systems through the CIM/XML files; based on the CIM model, the distribution network topology is modeled to realize Power flow calculation, distribution network reliability index calculation and spatial mapping of geographic wiring diagrams, and rendering of feeder typical daily power flow calculation results and display distribution network reliability index values, so as to realize data visualization display, improve work efficiency, and improve distribution network reliability.
- Grid planning synchronization the distribution network equipment parameters and topology information in the operating state and planning state in the form of CIM/XML files, so that it can interact with other systems through the CIM/XML files; based on the CIM model, the distribution network topology is modeled to realize Power flow calculation, distribution network reliability index calculation and spatial mapping of geographic wiring diagrams, and rendering of feeder typical daily power flow calculation results and display distribution network reliability index values, so as to realize data visualization display, improve work efficiency, and improve distribution network reliability.
- Grid planning synchronization the distribution network equipment parameters
- Fig. 1 is the flow chart of a kind of auxiliary distribution network planning method based on CIM model that the embodiment of the present application provides;
- FIG. 2 is a schematic structural diagram of a CIM model-based auxiliary distribution network planning system provided by an embodiment of the present application.
- the distribution network planning process is mainly divided into the collection of original data, the determination of possible distribution planning schemes, the economic evaluation and the determination of the best Distribution network planning scheme.
- the distribution network planners need to rely on experience to determine the possible distribution network planning scheme, and then go to the site to investigate and adjust the scheme many times. It is time-consuming, laborious, and inefficient.
- the drawing of the planning scheme depends on CAD drawing , the CAD primitive itself has no electrical connection relationship, and needs to use other electrical calculation tools for modeling and electrical verification of the planning scheme. The process is cumbersome, the synchronization is poor, and the interaction with other power systems cannot be realized. Insufficient comprehensively restricts the work efficiency of planners.
- a kind of distribution network auxiliary planning method based on CIM model provided by the present invention, comprises the following steps:
- the distribution network equipment parameters include equipment type, equipment coordinates and corresponding equipment parameter;
- the power flow calculation method based on forward-back generation, using the original topological structure of the distribution network as the topological input, and the typical daily load of the feeder current year as the load input to perform power flow calculation, and obtain the typical daily power flow calculation results of the feeder;
- the original topology of the distribution network is used as the topology input, and the number of low-voltage users of users in the station area in the marketing system is used as the user input for calculation, and the reliability index value of the distribution network is obtained;
- the present invention stores the operating state and planning state distribution network equipment parameters and topology information in the form of a CIM/XML file, so that it can interact with other systems through the CIM/XML file; based on the CIM model, the distribution network topology Carry out modeling, realize power flow calculation, distribution network reliability index calculation, and spatial mapping of geographical wiring diagrams, and render typical daily power flow calculation results of feeders and display distribution network reliability index values, thereby realizing data visualization and improving work Efficiency, improving the synchronization of distribution network planning.
- a kind of distribution network auxiliary planning method based on CIM model provided by the present invention comprises the following steps:
- distribution network equipment parameters and topology information in the text and attributes of nodes in the CIM model of the distribution network system in the form of a CIM/XML file.
- the distribution network equipment parameters include equipment type, equipment coordinates and corresponding equipment. parameter;
- the equipment parameters are the basic parameters of the equipment, which can be obtained from the equipment nameplate, such as line length, line impedance, transformer parameters, etc.
- the attribute of the node stores the device type
- different device types store different device parameters in the text
- the text under the line segment stores the length, model, cross-sectional area, etc. of the line segment
- the text under the transformer stores the transformer model, capacity, etc.
- step S200 specifically includes:
- the CIM/XML file is parsed through the Java language-based DOM4J package.
- the namespace In the process of introducing the namespace of each attribute, the namespace is in the first paragraph of the CIM/XML file, and there can be multiple namespaces. Taking the first namespace as an example, the namespace can be introduced in the parsing process through the map function, so that It can distinguish multiple tags and attributes with the same name that may appear in the same XML document.
- the Document object is a function of the DOM4J package in the Java language, which is used to create a parsing factory and open up memory space.
- all nodes are searched through the node traverser elementIterator() function.
- the single-terminal device Considering the algorithmic logic of the depth-first search algorithm "first in, first out" in the search process, the single-terminal device will be pushed into the stack later in the search process, which will cause the single-terminal device to be connected to the line in the topology, which does not conform to the actual electrical connection relationship.
- this embodiment adds the constraint that single-terminal equipment is put into the stack first on the basis of the depth-first search algorithm, and uses the feeder as a unit according to the CIM model "power distribution equipment 1-equipment terminal 1-connection node 1-equipment terminal 2 - Model connection relationship of distribution equipment 2", and build the original topology result of distribution network.
- step S300 specifically includes:
- connection nodes of the conductive devices into topological nodes according to the model connection relationship of the CIM model, and load the topological nodes into the stack space;
- step S304 judge whether the stack space is empty according to the topological node, if it is judged that the stack space is not empty, then perform step S305, if it is judged that the stack space is empty, then the program ends;
- the power flow calculation method based on forwarding and back generation, using the original topology of the distribution network as the topology input, and using the typical daily load of the feeder current year as the load input to perform power flow calculation, and obtain the typical daily power flow calculation results of the feeder.
- the calculation results of the typical daily power flow of the feeder include the operating voltage, operating current, apparent power, line loss and load rate of the feeder section and all transformers under the feeder.
- the formula of the load rate of the line segment is:
- the original topology structure of the distribution network is used as a topology input, and the number of low-voltage users of users in the station area in the marketing system is used as a user input for calculation, and the reliability index value of the distribution network is obtained.
- the reliability index value of the distribution network includes the system average power outage frequency index, the user average power outage frequency index and the power shortage index.
- SAIFI is the average power outage frequency index of the system, and the unit is time/(user ⁇ year); ⁇ i is the failure rate; N i is the number of users at load point i.
- the formula for calculating the average power outage frequency index of users is:
- CAIFI is the user’s average power outage frequency index, times/(power outage user ⁇ year); the statistical method of the total number of users affected by power outages is that no matter how many times the power outages are affected by the users within a year, the users will press Calculate once.
- the formula for calculating the low battery indicator is:
- ENS is the power shortage index
- Lai is the average load of the load point
- Ui is the annual power outage time.
- the distribution network system can perform data interaction with the metering automation system, so that relevant data can be obtained from the metering automation system.
- step S600 specifically includes:
- the topology information includes equipment coordinates, equipment type and device parameters;
- step S700 specifically includes:
- the load rate results of the line segments in the feeder power flow results are rendered on the geographic wiring diagram of the feeder, and the load rates of the line segments are divided into four consecutive numerical intervals and rendered in different forms. Specifically, if the line segment If the load rate is ⁇ 20%, the line segment is rendered as white. If the load rate of the line segment is between 20% and 80%, the line segment is rendered as green. If the line segment load rate exceeds 80% but is less than or equal to 100%, the line segment is rendered as red. If the line segment The load rate > 100%, the line segment is rendered in dark red.
- rendering form is not limited to the above-mentioned color forms, but may also include but not limited to shapes, pies, and columns.
- the predetermined area can be set by itself, and the reliability index value of the distribution network is located at a designated position in the form of a text list.
- users can switch the target distribution network area map to 2D map or satellite map according to their own needs.
- step S800 specifically includes:
- the user can plan the planning scheme by himself, and the planning scheme can be in the form of a sketch.
- the user needs to first locate the starting point equipment of the line planning, such as a pole tower and a station building, and lead out the line from this equipment.
- the planned line type includes cable lines and overhead lines;
- the planned line type is a cable line
- the route point and the end point of the line corridor are determined by obtaining the tile information of the geographical map, and the poles are arranged and connected along the starting point equipment, the route point and the end point of the line according to the original topology of the distribution network, so as to determine Line corridor planning;
- the cable line is an underground pipe network channel, which can lead to the location of the cable terminal head, and there is no need to consider the erection of poles and towers.
- you choose to plan an overhead line in view of the planning of the overhead line, you need to consider the geographical background and plan the overhead line.
- the user needs to determine the route point and end point of the line corridor according to the actual geographical background, so as to be closer to the actual situation.
- the planning of the overhead line corridor can follow the geographical road, with a tower every 80-100 meters, try to avoid crossing roads, rivers and partitions, etc., and at the same time, consider the surrounding terrain to avoid problems in the erection of towers.
- the user can click to add a station building/transformer graphic element at the end of the planned line according to the planning scheme, and set the equipment model and parameter information of the station building/transformer.
- the user needs to upgrade the feeder equipment, the user needs to select the equipment to be replaced, and modify the equipment parameters corresponding to the replaced equipment.
- the upgrading and transformation of feeder equipment can also be line conductors, and the conductors to be replaced can be selected according to requirements. Modify the model of the wire, and after the user selects the replacement wire type, the wire diameter, length and other wire parameters of the line will be replaced synchronously.
- the simulation line planning can be sent back to the topology database for storage, and the simulated line plan can be re-calculated through steps S100-S500 to obtain the calculation results of the typical daily power flow of the newly added feeder and the reliability index of the newly added distribution network corresponding to the simulated line plan value.
- step S11 Comparing the calculation results of the typical daily power flow of the new feeder with the calculation results of the typical daily power flow of the feeder, judging whether the calculation result of the typical daily power flow of the new feeder meets the first comparison threshold according to the comparison results, and adding the new distribution network reliability index value is compared with the reliability index value of the distribution network, and it is judged according to the comparison result whether the newly added reliability index value of the distribution network satisfies the second comparison threshold. If the comparison result is not satisfied, then step S9 is re-executed to re-formulate the analog route planning;
- the typical daily power flow calculation of the new feeder can be The results and the newly added distribution network reliability index value are compared with the feeder typical daily power flow calculation results and distribution network reliability index value corresponding to the previous line planning, and the gap between the two is judged. If the gap is not large enough to meet the design requirements, then It shows that the analog route planning is feasible, if the gap does not meet the design requirements, it means that the analog route planning is not feasible, and the analog route planning needs to be re-formulated.
- the simulated line plan is saved to the grid database for subsequent use.
- the same device type maintains the same attribute structure and attribute items in the CIM model, and can be added to the original ID prefix "SEG_" of the modified device in the analog route plan Identified with “Test” and differentiated by the label "New wire” in the "Naming.name” property.
- Using the planned state label to distinguish the equipment that has been put into operation and the newly added equipment in the planned state is conducive to distinguishing the current grid from the planned grid during system interaction.
- the above is a detailed description of an embodiment of a distribution network auxiliary planning method based on a CIM model provided by the present invention.
- the present invention also provides a distribution network auxiliary planning system based on a CIM model, as shown in FIG. 2 , the present invention
- the system includes:
- the storage module 100 is used to store the distribution network equipment parameters and topology information in the text and attributes of the nodes in the CIM model of the distribution network system in the form of CIM/XML files.
- the distribution network equipment parameters include equipment type, equipment coordinates and corresponding device parameters;
- the traversal module 200 is used for traversing and searching all nodes and their corresponding texts and attributes based on the CIM model of the distribution network system;
- the topology module 300 is used to traverse all nodes and their topological connections in the CIM model based on the depth-first search algorithm to obtain the feeder topology path, thereby constructing the original topology structure of the distribution network;
- the power flow calculation module 400 is used for the power flow calculation method based on forwarding and back generation.
- the original topology structure of the distribution network is used as the topology input, and the typical daily load of the feeder current year is used as the load input to perform power flow calculation, and the typical daily power flow calculation results of the feeder are obtained. ;
- the reliability calculation module 500 is used for calculation based on the fault diffusion method, using the original topology of the distribution network as a topology input, and calling the number of low-voltage users of users in the station area in the marketing system as user input to calculate, and obtain the reliability index value of the distribution network;
- the wiring map mapping module 600 is used to obtain map tile information based on the map database, load the target distribution network area map, and map the original topology structure of the distribution network to the target distribution network area map to obtain the feeder geographic wiring diagram;
- the rendering module 700 is used to call the rendering interface to load the calculation results of the typical daily power flow of the feeder in the geographic wiring diagram of the feeder, and load the reliability index value of the distribution network to a predetermined area of the geographic wiring diagram of the feeder;
- the line planning module 800 is configured to perform line corridor planning on the feeder based on the geographical wiring diagram of the feeder, so as to complete the line planning.
- the traversal module includes:
- the parsing module is used to parse the CIM/XML file to obtain the text and attributes stored by the nodes in the CIM/XML file, and introduce the namespace of each attribute during the parsing process to distinguish multiple attributes with the same name in the same CIM/XML file;
- the reading module is used to read the CIM/XML file to obtain all Document objects, search all nodes in the CIM model through the node traverser, and store the text and attributes corresponding to the nodes in json format, and the nodes include representation devices Types of device nodes and terminal nodes representing device connection relationships.
- topology module specifically includes:
- the priority search module is used to traverse the CIM model to obtain all conductive devices based on the depth-first search algorithm
- a topological node module configured to merge the connection nodes of the conductive devices into topological nodes according to the model connection relationship of the CIM model, and load the topological nodes into the stack space;
- the first import module is configured to use the starting device of the feeder topology path as a search starting point, and import the starting device into the stack space;
- the stack space judging module is used to judge whether the stack space is empty according to the topology node, if it is judged that the stack space is not empty, then send a working signal to the stack output module, if it is judged that the stack space is empty, then end of program;
- a stack output module configured to output the stacking device connected to the starting device through the stack space until the last associated stacking device is popped;
- a marking module configured to add the stacking device to the feeder topology path according to the stacking device, and mark the stacking device as visited;
- connection judging module is used to judge whether the last unstacking device has a conductive device that is not connected in the feeder topology path, if the above judgment is yes, then send a working signal to the second import module, if the above judgment is no , then send a working signal to the stack space judging module;
- the second import module is used to import the non-single-terminal-connected conductive device of the last pop-out device into the stack space, and then import the single-terminal-connected conductive device of the last stack-out device into the stack space, thereby according to the The topological node judges whether the stack space is empty until all conductive devices are marked as visited, so as to obtain a complete topological path of the feeder to construct the original topological structure of the distribution network.
- the calculation results of the typical daily power flow of the feeder include the operating voltage, operating current, apparent power, line loss and load rate of the feeder segment and all transformers under the feeder.
- the distribution network reliability index value includes the system average power outage frequency index, the user average power outage frequency index and the power shortage index.
- wiring diagram mapping module specifically includes:
- the map loading module is used to obtain map tile information based on the map database, load the target distribution network area map, and transmit the topology information of the original topology structure of the distribution network to the front end of the target distribution network area map in the form of an array , the topology information includes device coordinates, device type and device parameters;
- a wiring diagram acquisition module configured to locate the device position in the target distribution network area map according to the device coordinates, match the device graphic element according to the device type, and load the device graphic element to the corresponding device location, so that the original topology of the distribution network is mapped to the regional map of the target distribution network to obtain a geographic wiring diagram of the feeder.
- the rendering module specifically includes:
- the rendering sub-module is used to divide the calculation results of the typical daily power flow of the feeder into a plurality of continuous numerical intervals, and load the plurality of continuous numerical intervals into the feeder geographic wiring diagram in different rendering forms;
- a display module configured to load the reliability index value of the distribution network into a predetermined area of the geographic wiring diagram of the feeder.
- route planning module specifically includes:
- the starting point positioning module is used to locate the starting point device of the line planning in the geographical wiring diagram of the feeder according to the preset planning scheme, and use the starting point device to lead out the planned line;
- the route type selection module is used to select the planned route type, select the corresponding route model according to the planned route type, and determine the route corridor planning, and the planned route type includes cable lines and overhead lines;
- the graphic element adding module is used to add equipment graphic elements in the line corridor planning according to the preset planning scheme, and set the equipment parameters of the equipment corresponding to the equipment graphic elements, so as to complete the line planning.
- system includes:
- a line planning simulation module configured to modify or replace parameters of equipment or lines in the line planning based on the geographic wiring diagram of the feeder, so as to obtain a simulated line plan
- a mapping module configured to map the simulated line plan to the CIM model, and calculate the calculation result of the typical daily power flow of the newly added feeder and the reliability index value of the newly added distribution network corresponding to the simulated line plan;
- a comparison module configured to compare the calculation result of the typical daily power flow of the newly added feeder with the calculation result of the typical daily power flow of the feeder, judge whether the calculation result of the typical daily power flow of the newly added feeder meets the first comparison threshold according to the comparison result, and Comparing the reliability index value of the newly added distribution network with the reliability index value of the distribution network, judging whether the reliability index value of the newly added distribution network satisfies the second comparison threshold according to the comparison result, if the above two All the comparison results are satisfied, then send a working signal to the storage module, if any of the above comparison results are not satisfied, then send a working signal to the line planning simulation module, so as to re-establish the analog line planning;
- the saving module is configured to save the simulated line plan to the power grid database, and add a specific identification to the ID prefixes of the modified equipment and wires in the simulated line plan.
- the system stores the parameters and topology information of distribution network equipment in the operating state and planning state in the form of CIM/XML files, so that it can interact with other systems through CIM/XML files; based on the CIM model, the distribution network topology is modeled to realize Power flow calculation, distribution network reliability index calculation and spatial mapping of geographic wiring diagrams, and rendering of feeder typical daily power flow calculation results and display distribution network reliability index values, so as to realize data visualization display, improve work efficiency, and improve distribution network reliability.
- Grid planning synchronization the parameters and topology information of distribution network equipment in the operating state and planning state in the form of CIM/XML files, so that it can interact with other systems through CIM/XML files; based on the CIM model, the distribution network topology is modeled to realize Power flow calculation, distribution network reliability index calculation and spatial mapping of geographic wiring diagrams, and rendering of feeder typical daily power flow calculation results and display distribution network reliability index values, so as to realize data visualization display, improve work efficiency, and improve distribution network reliability.
- Grid planning synchronization the parameters and topology
- the disclosed devices and methods may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components can be combined or integrated. to another system, or some features may be ignored, or not implemented.
- the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
- the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
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Abstract
一种基于CIM模型的配电网辅助规划方法及***,本方法将运行态和规划态配电网设备参数和拓扑信息以CIM/XML文件形式存储,从而可以通过CIM/XML文件与其他***进行交互;基于CIM模型对配电网拓扑进行建模,实现潮流计算、配电网可靠性指标计算和地理接线图的空间映射,并渲染馈线典型日潮流计算结果及展示配电网可靠性指标值,从而实现数据可视化展示,提升了工作效率,提高了配电网规划同步性。
Description
本申请要求于2021年09月06日提交中国专利局、申请号为202111035539.7、发明名称为“一种基于CIM模型的配电网辅助规划方法及***”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及配电网规划技术领域,尤其涉及一种基于CIM模型的配电网辅助规划方法及***。
目前,对于配电网的大量投入,需要合理有效的进行配电网规划才能充分发挥投资的效益。同时,科学合理的配电网规划不仅可以提高电力***运行的经济性和可靠性,保证电网的供电质量,还可以为运营商节省大量的投资、运行和维护费用。
配电网规划流程主要分为原始资料的收集、确定可能的配电规划方案、经济性评价和确定最佳的配电规划方案,其中耗时最长、重要性最高的是确定可能的配电网规划方案,目前配电网规划人员确定可能的配电网规划方案需要凭借经验初步规划位置后多次到现场勘查进行方案的调整,费时费力,效率低下,规划方案的绘制依赖CAD制图,CAD图元本身没有电气连接关系,需要借助其他电气计算工具进行规划方案的建模和电气校验,过程繁琐,同步性差,无法实现与其他电力***的交互,同时,地理信息和规划工具的匮乏全面制约着规划人员的工作效率。
发明内容
本申请提供了一种基于CIM模型的配电网辅助规划方法及***,用于解决上述配电网规划同步性和交互性差,且工作效率较低的技术问题。
有鉴于此,本申请第一方面提供了一种基于CIM模型的配电网辅助规划方法,包括以下步骤:
S1、将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网 ***的CIM模型中的节点的文本和属性中,所述配电网设备参数包括设备类型、设备坐标和对应的设备参数;
S2、基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;
S3、基于深度优先搜索算法在所述CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;
S4、基于前推回代的潮流计算方法,以所述配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;
S5、基于故障扩散法,以所述配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;
S6、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图;
S7、调用渲染接口在所述馈线地理接线图中加载所述馈线典型日潮流计算结果,将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域;
S8、基于所述馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
优选地,步骤S2具体包括:
S201、解析CIM/XML文件,得到CIM/XML文件中节点存储的文本和属性,在解析过程中引入各属性的命名空间,以区分同份CIM/XML文件中多个同名属性;
S202、读取CIM/XML文件获取所有Document对象,通过节点遍历器在所述CIM模型中搜索所有节点,将节点对应的文本和属性以json格式进行存储,所述节点包括表示设备类型的设备节点以及表示设备连接关系的端子节点。
优选地,步骤S3具体包括:
S301、基于深度优先搜索算法,遍历CIM模型得到所有导电设备;
S302、根据CIM模型的模型连接关系将所述导电设备的连接节点归并为拓扑节点,将所述拓扑节点加载至栈空间;
S303、以馈线拓扑路径的起始设备作为搜索起点,将所述起始设备导入所述栈空间;
S304、根据所述拓扑节点判断所述栈空间是否为空,若判断所述栈空间不为空,则执行步骤S305,若判断所述栈空间为空,则程序结束;
S305、通过所述栈空间输出所述起始设备相连接的出栈设备,直至最后一个关联的出栈设备出栈;
S306、根据所述出栈设备加入至所述馈线拓扑路径中,并将所述出栈设备标记为已访问;
S307、判断最后一个出栈设备是否有未在所述馈线拓扑路径中的相连接的导电设备,若上述判断为是,则执行步骤S308,若上述判断为否,则执行步骤S304;
S308、将最后一个出栈设备的非单端子相连的导电设备导入所述栈空间,再将最后一个出栈设备的单端子相连的导电设备导入所述栈空间,重复执行步骤S304~S308,直至所有导电设备均标记为已访问,从而得到完整的馈线拓扑路径,以构建配电网原始拓扑结构。
优选地,所述馈线典型日潮流计算结果包括馈线分段和馈线下所有变压器的运行电压、运行电流、视在功率、线路损耗和负载率。
优选地,所述配电网可靠性指标值包括***平均停电频率指标、用户平均停电频率指标和电量不足指标。
优选地,步骤S6具体包括:
S601、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构的拓扑信息以数组形式传输至所述目标配电网区域地图的前端,所述拓扑信息包括设备坐标、设备类型和设备参数;
S602、根据所述设备坐标在所述目标配电网区域地图中定位设备位置,并根据所述设备类型匹配设备图元,将所述设备图元加载至对应的所述设备位置上,从而将所述配电网原始拓扑结构映射至所述目标配电网区域地 图中,以得到馈线地理接线图。
优选地,步骤S7具体包括:
S701、将所述馈线典型日潮流计算结果划分为多个连续数值区间,将多个所述连续数值区间以不同的渲染形式加载至所述馈线地理接线图中;
S702、将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域。
优选地,步骤S8具体包括:
S801、根据预设的规划方案在所述馈线地理接线图中定位线路规划的起点设备,以所述起点设备引出规划线路;
S802、选取规划线路类型,根据所述规划线路类型选择相应的线路型号,并确定线路走廊规划,所述规划线路类型包括电缆线路和架空线路;
若所述规划线路类型为所述电缆线路,则根据所述预设的规划方案设定线路终点的电缆终端头,根据所述配电网原始拓扑结构将所述起点设备与所述线路终点进行连线,从而确定线路走廊规划;
若所述规划线路类型为所述架空线路,通过获取地理图瓦片信息确定线路走廊的途径点和线路终点,根据所述配电网原始拓扑结构沿所述起点设备、所述途径点和所述线路终点进行排杆并连线,从而确定线路走廊规划;
S803、根据所述预设的规划方案在所述线路走廊规划中添加设备图元,并设定所述设备图元对应设备的设备参数,从而完成线路规划。
优选地,步骤S8之后包括:
S9、基于所述馈线地理接线图,对所述线路规划中的设备或线路进行参数修改或替换,从而得到模拟线路规划;
S10、将所述模拟线路规划映射至所述CIM模型中,执行步骤S1~S5,从而得到所述模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值;
S11、将所述新增馈线典型日潮流计算结果与所述馈线典型日潮流计算结果进行比较,根据比较结果判断所述新增馈线典型日潮流计算结果是否满足第一比较阈值,并将所述新增配电网可靠性指标值与所述配电网可靠 性指标值进行比较,根据比较结果判断所述新增配电网可靠性指标值是否满足第二比较阈值,若上述两个比较结果均满足,则执行步骤S12,若上述任一比较结果不满足,则重新执行步骤S9以重新进行制定模拟线路规划;
S12、将所述模拟线路规划保存至电网数据库,并将所述模拟线路规划中的已修改的设备和导线的ID前缀添加特定标识。
第二方面,本发明还提供了一种基于CIM模型的配电网辅助规划***,包括:
存储模块,用于将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,所述配电网设备参数包括设备类型、设备坐标和对应的设备参数;
遍历模块,用于基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;
拓扑模块,用于基于深度优先搜索算法在所述CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;
潮流计算模块,用于基于前推回代的潮流计算方法,以所述配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;
可靠性计算模块,用于基于故障扩散法,以所述配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;
接线图映射模块,用于基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图;
渲染模块,用于调用渲染接口在所述馈线地理接线图中加载所述馈线典型日潮流计算结果,将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域;
线路规划模块,用于基于所述馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
从以上技术方案可以看出,本发明具有以下优点:
本发明将运行态和规划态配电网设备参数和拓扑信息以CIM/XML文件形式存储,从而可以通过CIM/XML文件与其他***进行交互;基于CIM模型对配电网拓扑进行建模,实现潮流计算、配电网可靠性指标计算和地理接线图的空间映射,并渲染馈线典型日潮流计算结果及展示配电网可靠性指标值,从而实现数据可视化展示,提升了工作效率,提高了配电网规划同步性。
图1为本申请实施例提供的一种基于CIM模型的配电网辅助规划方法的流程图;
图2为本申请实施例提供的一种基于CIM模型的配电网辅助规划***的结构示意图。
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
目前,配电网规划流程主要分为原始资料的收集、确定可能的配电规划方案、经济性评价和确定最佳的配电规划方案,其中耗时最长、重要性最高的是确定可能的配电网规划方案,目前配电网规划人员确定可能的配电网规划方案需要凭借经验初步规划位置后多次到现场勘查进行方案的调整,费时费力,效率低下,规划方案的绘制依赖CAD制图,CAD图元本身没有电气连接关系,需要借助其他电气计算工具进行规划方案的建模和电气校验,过程繁琐,同步性差,无法实现与其他电力***的交互,同时,地理信息和规划工具的匮乏全面制约着规划人员的工作效率。
为此,请参阅图1,本发明提供的一种基于CIM模型的配电网辅助规划方法,包括以下步骤:
S1、将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,配电网设备参数包括设备类型、设备坐标和对应的设备参数;
S2、基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;
S3、基于深度优先搜索算法在CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;
S4、基于前推回代的潮流计算方法,以配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;
S5、基于故障扩散法,以配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;
S6、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将配电网原始拓扑结构映射至目标配电网区域地图中,以得到馈线地理接线图;
S7、调用渲染接口在馈线地理接线图中加载馈线典型日潮流计算结果,将配电网可靠性指标值加载至馈线地理接线图的预定区域;
S8、基于馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
需要说明的是,本发明将运行态和规划态配电网设备参数和拓扑信息以CIM/XML文件形式存储,从而可以通过CIM/XML文件与其他***进行交互;基于CIM模型对配电网拓扑进行建模,实现潮流计算、配电网可靠性指标计算和地理接线图的空间映射,并渲染馈线典型日潮流计算结果及展示配电网可靠性指标值,从而实现数据可视化展示,提升了工作效率,提高了配电网规划同步性。
以下为本发明提供的一种基于CIM模型的配电网辅助规划方法的实施例的详细描述。
本发明提供的一种基于CIM模型的配电网辅助规划方法,包括以下步骤:
S100、将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,配电网设备参数包括设备类型、设备坐标和对应的设备参数;
需要说明的是,设备参数为设备的基本参数,可以从设备铭牌中获取到,如线路长度、线路阻抗、变压器参数等。
在一般示例中,节点的属性存储设备类型,不同的设备类型在文本中存储的设备参数不一样,例如线路线段下的文本存储线路线段的长度、型号、截面积等,变压器下的文本存储变压器的型号、容量等。
S200、基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;
在本实施例中,步骤S200具体包括:
S201、解析CIM/XML文件,得到CIM/XML文件中节点存储的文本和属性,在解析过程中引入各属性的命名空间,以区分同份CIM/XML文件中多个同名属性;
在本实施例中,通过基于Java语言的DOM4J包解析CIM/XML文件。
在引入各属性的命名空间过程中,命名空间处于CIM/XML文件的首段,可以有多个命名空间,以第一个命名空间为例,通过map函数可在解析过程中引入命名空间,从而可以区分同一份XML文档中可能出现多个同名的标签和属性。
S202、读取CIM/XML文件获取所有Document对象,通过节点遍历器在CIM模型中搜索所有节点,将节点对应的文本和属性以json格式进行存储,节点包括表示设备类型的设备节点以及表示设备连接关系的端子节点。
其中,Document对象为Java语言中DOM4J包的一个函数,用于创建 解析工厂,开辟内存空间。
在本实施例中,通过节点遍历器elementIterator()函数搜索所有节点。
S300、基于深度优先搜索算法在CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构。
需要说明的是,在CIM模型中,不同设备具有不同数量的端子数,例如:配电-架空线段、配电-电缆、配电-柱上隔离开关等设备具有两个端子,而配电-运行杆塔、配电-电缆终端头等设备则只有一个端子。
考虑到深度优先搜索算法“先入栈的先出栈”的算法逻辑,单端子设备在搜索过程中的后入栈会导致单端子设备在拓扑中T接于线路,这不符合实际电气连接关系。
为了避免上述情况,本实施例在深度优先搜索算法的基础上加入单端子设备优先入栈的约束,以馈线为单元根据CIM模型“配电设备1-设备端子1-连接节点1-设备端子2-配电设备2”的模型连接关系,搭建配电网原始拓扑结果。
具体地,步骤S300具体包括:
S301、基于深度优先搜索算法,遍历CIM模型得到所有导电设备;
S302、根据CIM模型的模型连接关系将导电设备的连接节点归并为拓扑节点,将拓扑节点加载至栈空间;
S303、以馈线拓扑路径的起始设备作为搜索起点,将起始设备导入栈空间;
S304、根据拓扑节点判断栈空间是否为空,若判断栈空间不为空,则执行步骤S305,若判断栈空间为空,则程序结束;
可以理解的是,由于将拓扑节点加载至栈空间,利用节点进出栈空间,确定拓扑的正确连接关系。
S305、通过栈空间输出起始设备相连接的出栈设备,直至最后一个关联的出栈设备出栈;
S306、根据出栈设备加入至馈线拓扑路径中,并将出栈设备标记为已访问;
S307、判断最后一个出栈设备是否有未在馈线拓扑路径中的相连接的导电设备,若上述判断为是,则执行步骤S308,若上述判断为否,则执行步骤S304;
S308、将最后一个出栈设备的非单端子相连的导电设备导入栈空间,再将最后一个出栈设备的单端子相连的导电设备导入栈空间,重复执行步骤S304~S308,直至所有导电设备均标记为已访问,从而得到完整的馈线拓扑路径,以构建配电网原始拓扑结构。
S400、基于前推回代的潮流计算方法,以配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果。
在本实施例中,馈线典型日潮流计算结果包括馈线分段和馈线下所有变压器的运行电压、运行电流、视在功率、线路损耗和负载率。
其中,线段的负载率的公式为:
S500、基于故障扩散法,以配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值。
在本实施例中,配电网可靠性指标值包括***平均停电频率指标、用户平均停电频率指标和电量不足指标。
其中,***平均停电频率指标的计算公式为:
式中,SAIFI为***平均停电频率指标,单位为次/(用户·年);λ
i为故障率;N
i为负荷点i用户数。
用户平均停电频率指标的计算公式为:
式中,CAIFI为用户平均停电频率指标,次/(停电用户·年);受停电 影响的总用户数的统计方法是受停电影响的用户一年内不管其被停电的次数有多少,用户均按一次计算。
电量不足指标的计算公式为:
ENS=***总电量不足=∑L
aiU
i
式中,ENS为电量不足指标;L
ai负荷点的平均负荷;U
i为年停电时间。
需要说明的是,配电网***可以与计量自动化***进行数据交互,从而可以从从计量自动化***中获取相关数据。
S600、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将配电网原始拓扑结构映射至目标配电网区域地图中,以得到馈线地理接线图。
具体地,步骤S600具体包括:
S601、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将配电网原始拓扑结构的拓扑信息以数组形式传输至目标配电网区域地图的前端,拓扑信息包括设备坐标、设备类型和设备参数;
S602、根据设备坐标在目标配电网区域地图中定位设备位置,并根据设备类型匹配设备图元,将设备图元加载至对应的设备位置上,从而将配电网原始拓扑结构映射至目标配电网区域地图中,以得到馈线地理接线图。
S700、调用渲染接口在馈线地理接线图中加载馈线典型日潮流计算结果,将配电网可靠性指标值加载至馈线地理接线图的预定区域。
具体地,步骤S700具体包括:
S701、将馈线典型日潮流计算结果划分为多个连续数值区间,将多个连续数值区间以不同的渲染形式加载至馈线地理接线图中;
在本实施例中,将馈线潮流结果中线段的负载率结果渲染在馈线地理接线图上,并将线段的负载率分为四个连续数值区间并进行不同形式的渲染,具体为,如果线段的负载率≤20%,线段渲染为白色,如果线段的负载率在20%和80%之间,线段渲染为绿色,如果线段负载率超过80%但是小于等于100%,线段渲染为红色,如果线段的负载率>100%,线段渲染为深红色。
需要说明的是,渲染形式不限于上述颜色形式,还可以包括但不限于 形状、饼状、柱形。
S702、将配电网可靠性指标值加载至馈线地理接线图的预定区域。
在一个具体实施例中,预定区域可以自行设置,将配电网可靠性指标值以文本列表形式定位至指定位置。
同时,用户可根据自身需求将目标配电网区域地图切换2D地图或卫星地图。
S800、基于馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
具体地,步骤S800具体包括:
S801、根据预设的规划方案在馈线地理接线图中定位线路规划的起点设备,以起点设备引出规划线路;
在本实施例中,用户可以自行规划好规划方案,而该规划方案可以为草图形式,用户需先定位线路规划的起点设备,如杆塔、站房,并从该设备开始引出线路。
S802、选取规划线路类型,根据规划线路类型选择相应的线路型号,并确定线路走廊规划,规划线路类型包括电缆线路和架空线路;
若规划线路类型为电缆线路,则根据预设的规划方案设定线路终点的电缆终端头,根据配电网原始拓扑结构将起点设备与线路终点进行连线,从而确定线路走廊规划;
若规划线路类型为架空线路,通过获取地理图瓦片信息确定线路走廊的途径点和线路终点,根据配电网原始拓扑结构沿起点设备、途径点和线路终点进行排杆并连线,从而确定线路走廊规划;
需要说明的是,电缆线路为地下管网通道,可以通往电缆终端头所在位置,不需要考虑杆塔架设问题,而若选择规划架空线路,鉴于架空线路的规划需要考虑地理背景,进行架空线路规划时,用户需要根据实际地理背景确定线路走廊的途径点和终点,以更贴近实际情况。
架空线路走廊规划可以沿着地理道路走向,每隔80-100米一个杆塔,尽量避免跨过道路、河流和分区等,同时,考虑周围的地形,避免杆塔架设出现问题。
S803、根据预设的规划方案在线路走廊规划中添加设备图元,并设定设备图元对应设备的设备参数,从而完成线路规划。
在本实施例中,用户可根据规划方案在规划线路的终点处点击添加站房/变压器图元,并设定站房/变压器的设备型号、参数信息。
S9、基于馈线地理接线图,对线路规划中的设备或线路进行参数修改或替换,从而得到模拟线路规划;
需要说明的是,在完成线路规划后,若用户需要对馈线设备进行升级改造,用户需选定需要进行替换的设备,将替换的设备对应的设备参数进行修改。馈线设备升级改造也可以为线路导线,可以根据需求选定待替换的导线。对导线的型号进行修改,用户选定替换的导线类型后,将同步替换该线路的线径、长度等导线参数。
S10、将模拟线路规划映射至CIM模型中,执行步骤S100~S500,从而得到模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值;
需要说明的是,用户在制定模拟线路规划完毕后,可以了解配电网运行指标的变化,从而了解模拟线路规划的效果。则可以将模拟线路规划回传至拓扑数据库保存,通过步骤S100~S500重新对模拟线路规划进行电气验算,得到模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值。
S11、将新增馈线典型日潮流计算结果与馈线典型日潮流计算结果进行比较,根据比较结果判断新增馈线典型日潮流计算结果是否满足第一比较阈值,并将新增配电网可靠性指标值与配电网可靠性指标值进行比较,根据比较结果判断新增配电网可靠性指标值是否满足第二比较阈值,若上述两个比较结果均满足,则执行步骤S12,若上述任一比较结果不满足,则重新执行步骤S9以重新进行制定模拟线路规划;
需要说明的是,在获得模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值后,为了验证模拟线路规划是否可行,则可以将新增馈线典型日潮流计算结果和新增配电网可靠性指标值与之前的线路规划对应的馈线典型日潮流计算结果和配电网可靠性指标值进行比 较,并判断两者差距,若差距不大满足设计要求,则说明模拟线路规划可行,若差距不满足设计要求,则说明模拟线路规划不可行,需要进行重新进行制定模拟线路规划。
S12、将模拟线路规划保存至电网数据库,并将模拟线路规划中的已修改的设备和导线的ID前缀添加特定标识。
需要说明的是,若模拟线路规划可行,则将模拟线路规划保存至电网数据库,以便后续使用。
同时,将模拟线路规划映射至CIM模型的过程中,相同的设备类型在CIM模型保持属性结构和属性项一致,可以在模拟线路规划中的已修改的设备的原有ID前缀“SEG_”上加入“Test”标识,并在“Naming.name”属性中以“新导线”标签进行区分。以规划态标签区分已投运设备和规划态新增设备,有利于***交互时区分现状电网与规划态电网。
同时,保持属性结构与属性项的一致遵循了IEC61970标准和IEC61968标准,保证规划态CIM模型能够与其他***进行交互。
以上为本发明提供的一种基于CIM模型的配电网辅助规划方法的实施例的详细描述,本发明还提供了一种基于CIM模型的配电网辅助规划***,如图2所示,本***包括:
存储模块100,用于将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,配电网设备参数包括设备类型、设备坐标和对应的设备参数;
遍历模块200,用于基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;
拓扑模块300,用于基于深度优先搜索算法在CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;
潮流计算模块400,用于基于前推回代的潮流计算方法,以配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;
可靠性计算模块500,用于基于故障扩散法,以配电网原始拓扑结构 作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;
接线图映射模块600,用于基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将配电网原始拓扑结构映射至目标配电网区域地图中,以得到馈线地理接线图;
渲染模块700,用于调用渲染接口在馈线地理接线图中加载馈线典型日潮流计算结果,将配电网可靠性指标值加载至馈线地理接线图的预定区域;
线路规划模块800,用于基于馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
进一步地,遍历模块包括:
解析模块,用于解析CIM/XML文件,得到CIM/XML文件中节点存储的文本和属性,在解析过程中引入各属性的命名空间,以区分同份CIM/XML文件中多个同名属性;
读取模块,用于读取CIM/XML文件获取所有Document对象,通过节点遍历器在所述CIM模型中搜索所有节点,将节点对应的文本和属性以json格式进行存储,所述节点包括表示设备类型的设备节点以及表示设备连接关系的端子节点。
进一步地,拓扑模块具体包括:
优先搜索模块,用于基于深度优先搜索算法,遍历CIM模型得到所有导电设备;
拓扑节点模块,用于根据CIM模型的模型连接关系将所述导电设备的连接节点归并为拓扑节点,将所述拓扑节点加载至栈空间;
第一导入模块,用于以馈线拓扑路径的起始设备作为搜索起点,将所述起始设备导入所述栈空间;
栈空间判断模块,用于根据所述拓扑节点判断所述栈空间是否为空,若判断所述栈空间不为空,则向栈输出模块发送工作信号,若判断所述栈空间为空,则程序结束;
栈输出模块,用于通过所述栈空间输出所述起始设备相连接的出栈设备,直至最后一个关联的出栈设备出栈;
标记模块,用于根据所述出栈设备加入至所述馈线拓扑路径中,并将所述出栈设备标记为已访问;
连接判断模块,用于判断最后一个出栈设备是否有未在所述馈线拓扑路径中的相连接的导电设备,若上述判断为是,则向第二导入模块发送工作信号,若上述判断为否,则向栈空间判断模块发送工作信号;
第二导入模块,用于将最后一个出栈设备的非单端子相连的导电设备导入所述栈空间,再将最后一个出栈设备的单端子相连的导电设备导入所述栈空间,从而根据所述拓扑节点判断所述栈空间是否为空,直至所有导电设备均标记为已访问,从而得到完整的馈线拓扑路径,以构建配电网原始拓扑结构。
进一步地,所述馈线典型日潮流计算结果包括馈线分段和馈线下所有变压器的运行电压、运行电流、视在功率、线路损耗和负载率。
进一步地,所述配电网可靠性指标值包括***平均停电频率指标、用户平均停电频率指标和电量不足指标。
进一步地,接线图映射模块具体包括:
地图加载模块,用于基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构的拓扑信息以数组形式传输至所述目标配电网区域地图的前端,所述拓扑信息包括设备坐标、设备类型和设备参数;
接线图获取模块,用于根据所述设备坐标在所述目标配电网区域地图中定位设备位置,并根据所述设备类型匹配设备图元,将所述设备图元加载至对应的所述设备位置上,从而将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图。
进一步地,渲染模块具体包括:
渲染子模块,用于将所述馈线典型日潮流计算结果划分为多个连续数值区间,将多个所述连续数值区间以不同的渲染形式加载至所述馈线地理 接线图中;
显示模块,用于将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域。
进一步地,线路规划模块具体包括:
起点定位模块,用于根据预设的规划方案在所述馈线地理接线图中定位线路规划的起点设备,以所述起点设备引出规划线路;
选取路线类型模块,用于选取规划线路类型,根据所述规划线路类型选择相应的线路型号,并确定线路走廊规划,所述规划线路类型包括电缆线路和架空线路;
还用于若所述规划线路类型为所述电缆线路,则根据所述预设的规划方案设定线路终点的电缆终端头,根据所述配电网原始拓扑结构将所述起点设备与所述线路终点进行连线,从而确定线路走廊规划;
还用于若所述规划线路类型为所述架空线路,通过获取地理图瓦片信息确定线路走廊的途径点和线路终点,根据所述配电网原始拓扑结构沿所述起点设备、所述途径点和所述线路终点进行排杆并连线,从而确定线路走廊规划;
图元添加模块,用于根据所述预设的规划方案在所述线路走廊规划中添加设备图元,并设定所述设备图元对应设备的设备参数,从而完成线路规划。
进一步地,本***包括:
线路规划模拟模块,用于基于所述馈线地理接线图,对所述线路规划中的设备或线路进行参数修改或替换,从而得到模拟线路规划;
映射模块,用于将所述模拟线路规划映射至所述CIM模型中,计算所述模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值;
比较模块,用于将所述新增馈线典型日潮流计算结果与所述馈线典型日潮流计算结果进行比较,根据比较结果判断所述新增馈线典型日潮流计算结果是否满足第一比较阈值,并将所述新增配电网可靠性指标值与所述 配电网可靠性指标值进行比较,根据比较结果判断所述新增配电网可靠性指标值是否满足第二比较阈值,若上述两个比较结果均满足,则向保存模块发送工作信号,若上述任一比较结果不满足,则向线路规划模拟模块发送工作信号,从而重新进行制定模拟线路规划;
保存模块,用于将所述模拟线路规划保存至电网数据库,并将所述模拟线路规划中的已修改的设备和导线的ID前缀添加特定标识。
需要说明的是,本发明提供的一种基于CIM模型的配电网辅助规划***的工作过程与上述的一种基于CIM模型的配电网辅助规划方法的流程一致,在此不再赘述。
本***将运行态和规划态配电网设备参数和拓扑信息以CIM/XML文件形式存储,从而可以通过CIM/XML文件与其他***进行交互;基于CIM模型对配电网拓扑进行建模,实现潮流计算、配电网可靠性指标计算和地理接线图的空间映射,并渲染馈线典型日潮流计算结果及展示配电网可靠性指标值,从而实现数据可视化展示,提升了工作效率,提高了配电网规划同步性。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在 一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。
Claims (10)
- 一种基于CIM模型的配电网辅助规划方法,其特征在于,包括以下步骤:S1、将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,所述配电网设备参数包括设备类型、设备坐标和对应的设备参数;S2、基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;S3、基于深度优先搜索算法在所述CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;S4、基于前推回代的潮流计算方法,以所述配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;S5、基于故障扩散法,以所述配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;S6、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图;S7、调用渲染接口在所述馈线地理接线图中加载所述馈线典型日潮流计算结果,将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域;S8、基于所述馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S2具体包括:S201、解析CIM/XML文件,得到CIM/XML文件中节点存储的文本和属性,在解析过程中引入各属性的命名空间,以区分同份CIM/XML文件中多个同名属性;S202、读取CIM/XML文件获取所有Document对象,通过节点遍历器在所述CIM模型中搜索所有节点,将节点对应的文本和属性以json格式进行存储,所述节点包括表示设备类型的设备节点以及表示设备连接关系的端子节点。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S3具体包括:S301、基于深度优先搜索算法,遍历CIM模型得到所有导电设备;S302、根据CIM模型的模型连接关系将所述导电设备的连接节点归并为拓扑节点,将所述拓扑节点加载至栈空间;S303、以馈线拓扑路径的起始设备作为搜索起点,将所述起始设备导入所述栈空间;S304、根据所述拓扑节点判断所述栈空间是否为空,若判断所述栈空间不为空,则执行步骤S305,若判断所述栈空间为空,则程序结束;S305、通过所述栈空间输出所述起始设备相连接的出栈设备,直至最后一个关联的出栈设备出栈;S306、根据所述出栈设备加入至所述馈线拓扑路径中,并将所述出栈设备标记为已访问;S307、判断最后一个出栈设备是否有未在所述馈线拓扑路径中的相连接的导电设备,若上述判断为是,则执行步骤S308,若上述判断为否,则执行步骤S304;S308、将最后一个出栈设备的非单端子相连的导电设备导入所述栈空间,再将最后一个出栈设备的单端子相连的导电设备导入所述栈空间,重复执行步骤S304~S308,直至所有导电设备均标记为已访问,从而得到完整的馈线拓扑路径,以构建配电网原始拓扑结构。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,所述馈线典型日潮流计算结果包括馈线分段和馈线下所有变压器的运行电压、运行电流、视在功率、线路损耗和负载率。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,所述配电网可靠性指标值包括***平均停电频率指标、用户平 均停电频率指标和电量不足指标。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S6具体包括:S601、基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构的拓扑信息以数组形式传输至所述目标配电网区域地图的前端,所述拓扑信息包括设备坐标、设备类型和设备参数;S602、根据所述设备坐标在所述目标配电网区域地图中定位设备位置,并根据所述设备类型匹配设备图元,将所述设备图元加载至对应的所述设备位置上,从而将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S7具体包括:S701、将所述馈线典型日潮流计算结果划分为多个连续数值区间,将多个所述连续数值区间以不同的渲染形式加载至所述馈线地理接线图中;S702、将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S8具体包括:S801、根据预设的规划方案在所述馈线地理接线图中定位线路规划的起点设备,以所述起点设备引出规划线路;S802、选取规划线路类型,根据所述规划线路类型选择相应的线路型号,并确定线路走廊规划,所述规划线路类型包括电缆线路和架空线路;若所述规划线路类型为所述电缆线路,则根据所述预设的规划方案设定线路终点的电缆终端头,根据所述配电网原始拓扑结构将所述起点设备与所述线路终点进行连线,从而确定线路走廊规划;若所述规划线路类型为所述架空线路,通过获取地理图瓦片信息确定线路走廊的途径点和线路终点,根据所述配电网原始拓扑结构沿所述起点设备、所述途径点和所述线路终点进行排杆并连线,从而确定线路走廊规 划;S803、根据所述预设的规划方案在所述线路走廊规划中添加设备图元,并设定所述设备图元对应设备的设备参数,从而完成线路规划。
- 根据权利要求1所述的基于CIM模型的配电网辅助规划方法,其特征在于,步骤S8之后包括:S9、基于所述馈线地理接线图,对所述线路规划中的设备或线路进行参数修改或替换,从而得到模拟线路规划;S10、将所述模拟线路规划映射至所述CIM模型中,执行步骤S1~S5,从而得到所述模拟线路规划对应的新增馈线典型日潮流计算结果和新增配电网可靠性指标值;S11、将所述新增馈线典型日潮流计算结果与所述馈线典型日潮流计算结果进行比较,根据比较结果判断所述新增馈线典型日潮流计算结果是否满足第一比较阈值,并将所述新增配电网可靠性指标值与所述配电网可靠性指标值进行比较,根据比较结果判断所述新增配电网可靠性指标值是否满足第二比较阈值,若上述两个比较结果均满足,则执行步骤S12,若上述任一比较结果不满足,则重新执行步骤S9以重新进行制定模拟线路规划;S12、将所述模拟线路规划保存至电网数据库,并将所述模拟线路规划中的已修改的设备和导线的ID前缀添加特定标识。
- 一种基于CIM模型的配电网辅助规划***,其特征在于,包括:存储模块,用于将配电网设备参数和拓扑信息以CIM/XML文件形式存储于配电网***的CIM模型中的节点的文本和属性中,所述配电网设备参数包括设备类型、设备坐标和对应的设备参数;遍历模块,用于基于配电网***的CIM模型,遍历搜索所有节点及其对应的文本和属性;拓扑模块,用于基于深度优先搜索算法在所述CIM模型中遍历所有节点及其拓扑连接关系得到馈线拓扑路径,从而构建配电网原始拓扑结构;潮流计算模块,用于基于前推回代的潮流计算方法,以所述配电网原始拓扑结构作为拓扑输入,以馈线现状年的典型日负荷作为负荷输入进行潮流计算,得到馈线典型日潮流计算结果;可靠性计算模块,用于基于故障扩散法,以所述配电网原始拓扑结构作为拓扑输入,调用营销***中台区用户的低压用户数量作为用户输入进行计算,得到配电网可靠性指标值;接线图映射模块,用于基于地图数据库获取地图瓦片信息,加载目标配电网区域地图,将所述配电网原始拓扑结构映射至所述目标配电网区域地图中,以得到馈线地理接线图;渲染模块,用于调用渲染接口在所述馈线地理接线图中加载所述馈线典型日潮流计算结果,将所述配电网可靠性指标值加载至所述馈线地理接线图的预定区域;线路规划模块,用于基于所述馈线地理接线图对馈线进行线路走廊规划,从而完成线路规划。
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