CN105808880A - Relay protection setting method and system based on graphical power distribution network - Google Patents
Relay protection setting method and system based on graphical power distribution network Download PDFInfo
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Abstract
本发明公开了基于图形化配电网的继电器保护整定方法，依次包括以下步骤：将用电管理系统中的数据转换成电网拓扑图，进行图形块的绘制，实时采集电力系统运行状态，在线整定计算、调整继电保护定值整定装置的数值；再用户根据自己或者现场的需要，将根据这些数据带入到电力系统模型里进行配电网的继电保护定值计算。基于图形化配电网的继电保护整定系统，PMS数据转换装置、图形化组态建模装置、继电保护配置装置、继电保护定值整定装置均与继电保护定值管理装置相连。本发明的优点是：更加便捷，且便于管理，根据电网连接拓扑结构模型和电网功能位置模型，进行描述电网线路连接图和短路故障计算，数据本身的安全性得到了有效的保证。The invention discloses a relay protection setting method based on a graphical distribution network, which includes the following steps in turn: converting data in a power consumption management system into a network topology map, drawing graphic blocks, collecting the operating status of the power system in real time, and performing online setting Calculate and adjust the value of the relay protection setting value setting device; then the user will bring these data into the power system model to calculate the relay protection setting value of the distribution network according to his own or on-site needs. Based on the graphical distribution network relay protection setting system, the PMS data conversion device, graphical configuration modeling device, relay protection configuration device, and relay protection setting value setting device are all connected to the relay protection setting value management device. The invention has the advantages of being more convenient and easy to manage. According to the power grid connection topology model and the power grid function location model, the power grid line connection diagram and short-circuit fault calculation are described, and the security of the data itself is effectively guaranteed.
Description
Technical field
The present invention relates to the relay protection setting method and system of graphic based power distribution network.
Background technology
Along with the fast development of power system, power system is had highly important effect by the safe operation of power system.When system due to reasons such as natural, artificial or equipment faults; the somewhere in electrical network is made to break down or during abnormal state; faulty component can be excised rapidly by protective relaying device; avoid the expansion of fault harm; the loss being likely to occur is reduced to minimum; to ensure the stability of Operation of Electric Systems, and the non-faulting part of electrical network is made to continue reliably to power to greatest extent.In modern power systems, relay protection is indispensable important component part.Along with the development of power system, the requirement of relay protection is also more and more higher.In order to ensure that power system safety and stability runs, various relay protections must be configured into an organic whole, cooperates, and forms a tight system, and this just determines a relay protection work necessarily complicated system engineering.Wherein, the management of various data and adaptive setting are particularly critical.
Relay protection data relate to element, device parameter; many significant datas such as the definite value of all kinds of protections and relaying configuration situation; kind is considerably complicated, but without carrying out strict accurate numerical computations, main purpose is to realize organization and administration and the maintenance of data efficiently and accurately.By contrast, relay protection setting calculation is sufficiently complex and the technical work of arduousness.In order to meet selectivity that relay protection proposes by electrical network, quick-action, susceptiveness, four basic demands of reliability, it is necessary to reasonably select the setting valve of protection, and keep they coordinations each other and matching relationship frequently.These tasks complete each through adaptive setting.
Along with the continuous expansion of electrical network scale, protection seting is increasingly sophisticated, is manually difficult to be competent at, and the work of current adaptive setting has mainly been assisted by electronic computer.Have passed through long development, adaptive setting software comparative maturity, in the practice of relay protection work, play important effect.But, facing to day by day complicated power system, various adaptive setting softwares are showing certain limitation again in varying degrees.In recent years, although the new theorys such as specialist system, new method are also used to improve adaptive setting software, but still are difficult to the deficiency overcoming adaptive setting software intrinsic completely.In some cases, the definite value that adaptive setting software provides is likely to not reasonable.For power system; this is extremely dangerous; once break down; and protect device definite value whether accurately, rationally, it is necessary to just clear through the inspection of real system fault, but this postmortem analysis is passive; bring certain risk on the other hand may to security of system stable operation; consider power industry critical role in whole national economy, it is to avoid run to system and cause unnecessary harm, it is impossible to actively test in real system.
Summary of the invention
The purpose of the present invention is exactly for solving the problems referred to above; propose Setting Calculation System of Relay Protection and the method for a kind of graphic based power distribution network; this system and method calculates with high voltage distribution network real-time running data in conjunction with angle from the relay protection constant value of power distribution network, it is achieved sharing of data.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions: the relay protection setting method of graphic based power distribution network, comprises the following steps successively:
A, convert the data in power consuming administrative system to power grid topological graph by PMS DTU; the drafting of graph block is carried out by graphical configuration modeling device; by relay protection scheme module Real-time Collection operation states of electric power system, on-line setting, adjust the numerical value of relay protection fixed value setting device；
B, the again user needs according to oneself or scene; in power grid topological graph, add graph block build electric power system model; then being input in relay protection constant value managing device by the data of the data of relay protection scheme device and relay protection fixed value setting device, relay protection constant value managing device carries out the relay protection constant value calculating of power distribution network by being brought in electric power system model according to these data.
Preferably, described graphical configuration modeling device carries out the drafting of graph block, first passes through graph block editing device and creates the graphic resource of heating power module, then passes through modeling device and creates power module resource and generate electric power system model network.
The Setting Calculation System of Relay Protection of graphic based power distribution network; including PMS DTU, graphical configuration modeling device, relay protection scheme device, relay protection fixed value setting device and relay protection constant value managing device, described PMS DTU, graphical configuration modeling device, relay protection scheme device, relay protection fixed value setting device are all connected with relay protection constant value managing device.
Preferably, described graphical configuration modeling device includes graph block editing device and modeling device.
Compared with prior art, the invention have the advantage that the present invention is more convenient when adopting pattern technology to make adaptive setting, and it is easy to management, graphically instrument is basic mode of operation, power network resources model is basic modeling tool, topology controlment and electrical network POF model is connected according to electrical network, it is described power network line connection figure and short trouble calculates, data are also stored middle produced all original mesh data by the present invention, the data of calculating, simulation process and result are in data base, therefore, the safety of data itself is guaranteed.
Detailed description of the invention
The relay protection setting method of graphic based power distribution network, comprises the following steps successively:
A, convert the data in power consuming administrative system to power grid topological graph by PMS DTU; the drafting of graph block is carried out by graphical configuration modeling device; by relay protection scheme module Real-time Collection operation states of electric power system, on-line setting, adjust the numerical value of relay protection fixed value setting device；
B, the again user needs according to oneself or scene; in power grid topological graph, add graph block build electric power system model; then being input in relay protection constant value managing device by the data of the data of relay protection scheme device and relay protection fixed value setting device, relay protection constant value managing device carries out the relay protection constant value calculating of power distribution network by being brought in electric power system model according to these data.
Wherein graphical configuration modeling device carries out the drafting of graph block, first passes through graph block editing device and creates the graphic resource of heating power module, then passes through modeling device and creates power module resource and generate electric power system model network.
The Setting Calculation System of Relay Protection of graphic based power distribution network; including PMS DTU, graphical configuration modeling device, relay protection scheme device, relay protection fixed value setting device and relay protection constant value managing device; described PMS DTU, graphical configuration modeling device, relay protection scheme device, relay protection fixed value setting device are all connected with relay protection constant value managing device, and described graphical configuration modeling device includes graph block editing device and modeling device.
Wherein PMS DTU and power consuming administrative system, major function is to convert the data in PMS to power grid topological graph, namely importing power distribution network basic parameter, form network topology structure figure, described basic parameter is specially in power distribution network each node, branch road, switch and power information.
Described graphical configuration modeling device includes graph block editing device and modeling device, described graph block editing device, including module figure resource edit part, this part can carry out the drawing of graph block under graph block editing platform, and drawing result is created as graph block, carry out unified management；Described modeling device, comprises module resource subsystem and power system configuration environment.Described module resource subsystem has stored conventional MBM in conventional module tool case, selects the combination of disparate modules icon and module type also by custom block order, it is achieved module self-defined；Described power system configuration environment, it is possible to module network figure carries out debugging process, drift net identification, finally automatically generates the relay protection constant value simulation calculation program of electric power Force system.
Relay protection scheme device is that one utilizes network real-time data acquisition operation states of electric power system, and on-line setting, adjustment protect the device of definite value.
Relay protection fixed value setting device includes online evaluation early warning and on-line tuning, it is contemplated that the feature of practical power systems layering and zoning, and on-line tuning is layered according to electric pressure, progressively adjusts.In order to same electric pressure electrical network is processed as a relatively independent system, it is necessary to using electric substation's connecting transformer as separation, and the division in the management region according to electrical network, it is achieved subregion is adjusted.During on-line tuning, first by electric pressure and management region, one large-scale power grid is decomposed into several mininets, then carries out adaptive setting and can reduce calculative data volume in each tuning process, to improve the arithmetic speed of on-line tuning
Relay protection constant value managing device achieves initial data input, calculation of short-circuit current, sets up definite value matching relationship, generates fixed value calculation list, inquires about a series of functions such as advice note; on full graphics interface platform, realize, in the way of integrated, the comprehensive automation that relay protection production management works.
The present invention is more convenient when adopting pattern technology to make adaptive setting, and it is easy to management, graphically instrument is basic mode of operation, power network resources model is basic modeling tool, topology controlment and electrical network POF model is connected according to electrical network, it is described power network line connection figure and short trouble calculates, data are also stored middle produced all original mesh data by the present invention, the data of calculating, simulation process and result are in data base, therefore, the safety of data itself is guaranteed.
The foregoing is only specific embodiments of the invention, but the technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and change or the modification made all are encompassed among the scope of the claims of the present invention.
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Cited By (9)
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| CN106293720A (en) * | 2016-08-02 | 2017-01-04 | 大连文森特软件科技有限公司 | A Power Network Simulation System with Graphical Programming and Debugging |
| CN106406850A (en) * | 2016-08-02 | 2017-02-15 | 大连文森特软件科技有限公司 | A Visual Programming System Considering Power Grid Dynamic Power Flow |
| CN107480906A (en) * | 2017-08-25 | 2017-12-15 | 合肥明信软件技术有限公司 | A kind of multi-functional online control platform and management-control method based on safety of coal mines power supply |
| CN108153167A (en) * | 2018-02-01 | 2018-06-12 | 上海金智晟东电力科技有限公司 | It can flexible configurations power distribution network dynamic model experiment platform and its method |
| CN108230181A (en) * | 2016-12-15 | 2018-06-29 | Abb股份公司 | For managing the computerized system of the operation of power distribution network and its configuration method |
| CN110399671A (en) * | 2019-07-19 | 2019-11-01 | 国网河北省电力有限公司邢台供电分公司 | Setting calculation method, device and terminal of relay protection device of power grid |
| CN112234611A (en) * | 2020-09-30 | 2021-01-15 | 国网河南省电力公司电力科学研究院 | A computer modeling-based distribution network tuning calculation method and system |
| CN114389242A (en) * | 2021-12-30 | 2022-04-22 | 广东电网有限责任公司茂名供电局 | Distribution network protection setting fault analysis method based on multi-source data integration |
| CN115347672A (en) * | 2022-08-15 | 2022-11-15 | 广东电网有限责任公司 | A method, device, and computer storage medium for intelligent supervision of a relay protection secondary system |
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| CN106293720A (en) * | 2016-08-02 | 2017-01-04 | 大连文森特软件科技有限公司 | A Power Network Simulation System with Graphical Programming and Debugging |
| CN106406850A (en) * | 2016-08-02 | 2017-02-15 | 大连文森特软件科技有限公司 | A Visual Programming System Considering Power Grid Dynamic Power Flow |
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| CN107480906A (en) * | 2017-08-25 | 2017-12-15 | 合肥明信软件技术有限公司 | A kind of multi-functional online control platform and management-control method based on safety of coal mines power supply |
| CN108153167A (en) * | 2018-02-01 | 2018-06-12 | 上海金智晟东电力科技有限公司 | It can flexible configurations power distribution network dynamic model experiment platform and its method |
| CN110399671A (en) * | 2019-07-19 | 2019-11-01 | 国网河北省电力有限公司邢台供电分公司 | Setting calculation method, device and terminal of relay protection device of power grid |
| CN112234611A (en) * | 2020-09-30 | 2021-01-15 | 国网河南省电力公司电力科学研究院 | A computer modeling-based distribution network tuning calculation method and system |
| CN112234611B (en) * | 2020-09-30 | 2023-03-21 | 国网河南省电力公司电力科学研究院 | Power distribution network setting calculation method and system based on computer modeling |
| CN114389242A (en) * | 2021-12-30 | 2022-04-22 | 广东电网有限责任公司茂名供电局 | Distribution network protection setting fault analysis method based on multi-source data integration |
| CN114389242B (en) * | 2021-12-30 | 2023-07-28 | 广东电网有限责任公司茂名供电局 | Distribution network protection setting fault analysis method based on multi-source data integration |
| CN115347672A (en) * | 2022-08-15 | 2022-11-15 | 广东电网有限责任公司 | A method, device, and computer storage medium for intelligent supervision of a relay protection secondary system |
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Application publication date: 20160727 |