Topology gis definition,meaning online encyclopedia. An overview of topology in arcgishelp arcgis for desktop. Iec 62271203 high voltage switchgear and controlgear part 203. Principles of geographic information systemsan introductory. The capacitors in series across the supply fix a midpoint so that switches withstand only once the input voltage v in. The topology of a map is the set of relationships that describe the relative position of its components 2. As a result of the clustering process, feature vertices can potentially move more than the cluster tolerance in two ways.
Topology rules allow you to define the spatial relationships that meet the needs of your data model. Gis cim adapter project case on going distribution comp. Pdf living near highvoltage power lines%3a gisbased. Identifying topology of power distribution networks based. The postgis topology types and functions are used to manage topological objects such as faces, edges and nodes. Nevertheless, the topology alone does not respond to the needs in matter of defining specific rules for every facility network. The primary equipment is the highvoltage part of the switchgear, which is used for highvoltage insulation, currentcarrying, and openingclosing. Topology exploration and prototype for high voltage, low power, isolated dcdc converter multiplication of high voltage dc buses due to electric car multiplication, aircraft electrification, etc. Comparison of high voltage dc power supply topologies for. In a gis, spatial relationships among features are defined by topology in a geodatabase, you can choose whether to create topology for features. Devices with null or duplicate ids switches especially 5.
Several researchers have developed models to find the best topology for an optimal eds. In 21, a hypothesis testing based technique to the topology identi. Sandro santillis presentation at postgis day paris 2011 conference gives a good synopsis of postgis topology and where it is headed topology with postgis 2. High voltage direct current hybrid circuit breaker composed of a main branch, an energy absorbing branch, and auxiliary branches. For example, if you are modeling a wastewater network, all the features must be connected or the results of any. The improved kmeans clustering algorithm is applied to the topology verification of lowvoltage distribution network. It represents the integration of many subject areas.
Create the topology using arccatalog or geoprocessing tools. If your analysis will depend on accurately modeling spatial relationships, creating topology is essential. For example, where two polygons represent adjacent counties, typical topological rules would require that the counties share a common boundary with no gaps and no overlaps. Geographical information system for highvoltage networks. Topology is a mathematical approach that allows us to structure data based on the principles of feature adjacency and feature connectivity. Siemens global references of highvoltage substations. Standards related to highvoltage circuit breakers 9. Add the topology to arcmap and set its display properties. The spatial relationships between connecting or adjacent coverage features e. Figure 5 topology of the gis variant with injection points 5 close to the load centers distribution voltage 20 kv secondly, it reduces the required power transmission capability of the mv network, allowing an additional saving due to the smaller mv cable crosssections required.
Geospatial topology studies the rules concerning the relationships between the points, lines, and polygons that represent the features of a geographic region. Before we jump head long into this discussion on spatial topology, let me start with a highlevel definition. This is fundamental to many gis operations and concepts. Particular phenomena that are typical for gasinsulated dc switchgear and have impeded the use of gis in dc. Topology errors are violations of the rules that you can easily find and manage using the editing tools found in arcmap. The topologic model is often confusing to initial users of gis. Topology from the greek, place, and, study is the mathematical study of the properties that are preserved through deformations, twistings, and stretchings of objects. Annexes annex 1 on trv annex 2 on new test procedure t100a annex 3 on transformer limited. However, dc power at low voltage could not be transmitted over long distances, thus giving rise to high voltage alternating current ac electrical systems. For example, the topology of an arc includes its from and tonodes, and its left and right polygons topology overlay the topology overlay dialog creates a results drawing from two. Use the editing environment to identify and fix errors. In gis, topology is a collection of rules that, coupled with a set of editing tools and techniques, enables the geospatial data to more accurately model geometric relationships.
Topology is the science and mathematics of spatial relationships of vectors in gis. April 2010 oracle spatial user conference gis integration process. In general, a topological data model manages spatial relationships by representing spatial objects point, line, and area features as an underlying graph of topological primitivesnodes, faces, and edges. Automatic generation algorithm of distribution network topology. Worlds first nonsf6 gis installation with airplus uw oerlikon, ewz, switzerland energized in summer 2015 8 high voltage gis bays top 50 medium voltage gis bays bottom february 3, 2017 glk14 zx2 rated voltage 170 kv 24 kv rated current 1250 a 2500 a rated frequency 50 hz 50 hz rated shortcircuit current 40 ka 25 ka minimal. Requires good high voltage vacuum interrupter design. Quality awarded company with long term it strategy. A broadly accepted definition of gis is the one provided by the. Siemens high voltage direct current systems hvdc provide the most efficient way of energy transmission over long distances and to support the improvement of the grid stability. Introduction to gis 2 introduction definition of gis like the field of geography, the term geographic information system gis is hard to define. Definition topology basically refers the relationship between things, and in the realm of gis, topology refers to the relationship between spatial features or objects. Li et al topology optimization of truncated cone insulator with graded permittivity using variable density method guanjun zhang m02 was born in shandong, china, in october 1970. Abstract high voltage power supplies for radar applications. While many distribution substation topologies exist, the radial bus configuration, or a variant of it, is the standard topology for most distribution substations.
Thats why siemens has spared no effort to make the advantages of gis available for hvdc transmission. Topology has long been a key gis requirement for data management and integrity. A circle is topologically equivalent to an ellipse into which it can be deformed by stretching and a sphere is equivalent to an ellipsoid. Topology information about an objects relationship to its neighboring objects. Objects can be manipulated by stretching or compressing the shapes components, but the tearing of or addition to its structure will break topology. Geographical information system for highvoltage networks network management and the planning of network expansion for overhead highvoltage power lines and cables require extensive planning documents. The conception of these relationships varies between raster and vector geographic information systems. Topology exploration and prototype for high voltage, low. Pdf topology optimization of truncated cone insulator. Fmgisplus provides an application module for geographical information systems, specially designed for highvoltage networks. For a poster of the available topology rules and examples of them, see the arcgis geodatabase topology rules pdf. Gis product portfolio and service capabilities there is a legacy of product leadership and many firsts in abbs gis history. Our units are currently used in urban areas, closely builtup industrial areas, underground power substations of large commercial. Electrical bus system and electrical substation layout.
Gis functionalities and tools give the possibility of defining the topology of vector data. Abb high voltage service proudly supports the following brands with complete life cycle support services. Distribution system lowvoltage circuit topology estimation using. Hvdc high voltage direct current highvoltage power. System gisbased and powerrelated comparison level is introduced. Pdf this paper demonstrates the capabilities of geographic. Gis cim adapter implementation full export into cim file, esb usage of existing cim repository incremental export into cim file. Topology is the field of mathematics that studies the relationships of elements in space.
Nevertheless, with the development of high voltage valves, it was possible to once again transmit dc power at high voltages and over long distances, giving rise to hvdc transmission systems. Dc voltage that can be as high as 400 v or even 800 v in recent or future systems. Summary of impacts 2015 topology versus 2010 topology 5. Hvdc hybrid circuit breaker topology switchgear content. Paper open access topology verification of low voltage. Fortunately, most of the information required to model lv elements is readily available in the geographical information systems gis of power utilities 3, hence processing of this gis data is. This topology can be used for an output power capability up to 500w. The goal of this part of the book is to teach the language of mathematics.
A highvoltage steel tower is analyzed as a numerical example to illustrate the performance of the proposed methods. The auxiliary branches include a capacitor c, a resistor r, a fast mechanical switch s3, two inductors l1 and l2, and five thyristors t1a, t1b, t2a, t2b, and t3. Big data analytics in electric power distribution systems. In order to avoid cumbersome manual validations, an automated method. As for the pushpull converter, t 1 and t 2 switches are alternately turned on during a time t on. There are four basic spatial relationships that can be maintained with vector features, i will elaborate on these shortly. Gasinsulated metalenclosed switchgear for rated voltages above 52 kv 092011 orequired leakage rate high inrush current produces a large arc and the melting of contact material 2 the contacts are pressed together with high force and. We believe that although many gis manufacturers produce a product similar to ours, it is our ability of giving you a high quality system at a reasonable price that sets us apart. Pdf the creation of realistic models of low voltage lv distribution feeders is. Accordingly there us no absolutely agreed upon definition of a gis demers, 1997.
Comparison of high voltage dc power supply topologies for pulsed load applications n. In this work, we propose a novel method for identifying the underlying network topology from smart meter energy. Ssttaarrtt get user voltage data of ami record, set initial parameters get user voltage data of ami record, set initial parameters noise processing to obtain highdensity data set d. Abb gis, type elk14, 362kv with hmb mechanism initial purchase years 0 10 years 10 30 years 30 to 50.
Substations establish interconnection points within power systems, with the switching status of circuitbreakers defining the network topology, and transformers enabling connections between voltage levels. These topologies could be the flying capacitor or the diode clamp topology. These high voltage demands could also be met by connecting converters in series or to make use of one of the multilevel topologies 2, 3. Urban supply systems combining gis technology and hv cable are safe, reliable and environmentally benign. Topological vulnerability of the european power grid under. The topology rule occurs within a single feature class or subtype. We present an analysis of the topological structure and static tolerance to. The topology optimization rules are presented for the tco method, and the layering optimization rules are presented for the lco method. Gis data assessment for dms and smart grid implementation. Medium voltage ug lines device controller utility control center transmission substation fiber or other high speed link meter ieds, scada data low voltage analytics sensor low voltage lines. For more than fifty years ucte has coordinated the international operation of high voltage. The book is also made available as an electronic pdf document.
In the center of the figure, the transformer item 9 demarcates. Topology is defined through a set of rules that define how features may share a geographic space and a set of editing tools that work with features that share geometry. A highperformance distribution substation bus topology. Incomplete topology information in the secondary systems phase connection. Reliability of substation configurations daniel nack, iowa state university, 2005 introduction while one of the strongest points in a power system is the electric substation, it still contains what could be described as weak points or points of failure that would lead to loss of load. Electrical bus system and electrical substation layout july 25, 2018 february 24, 2012 by electrical4u there are many different electrical bus system schemes available but selection of a particular scheme depends upon the system voltage, position of substation in electrical power system, flexibility needed in system and cost to be expensed. Best solution for urban supply networks ais or gis systems. Topology is the arrangement that defines how point, line, and polygon features share coincident geometry. Nanpeng yu department of electrical and computer engineering wch 428.