CN114113834A - Low-voltage power distribution Internet of things interactive function test bed area and management system thereof - Google Patents
Low-voltage power distribution Internet of things interactive function test bed area and management system thereof Download PDFInfo
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Abstract
The invention discloses a low-voltage power distribution Internet of things interactive function test bed area and a management system thereof. The existing power distribution internet of things test system mostly takes complete simulation of a low-voltage power distribution area structure as a starting point, namely a true test system, but the true test system has poor effect in practical test application. According to the invention, physical characteristics of an actual distribution area are simulated in a semi-true mode, a multi-area, multi-branch and multi-level complex topology grid structure and multiple operation conditions are generated by one key, a typical distribution area scene of a power distribution network is flexibly constructed, various novel intelligent devices and sensing devices are accessed, the actual low-voltage distribution area operation environment is highly restored, the flexibility and the customizable characteristics of a laboratory detection platform are provided, and accurate quantitative evaluation is more pertinently carried out on the edge-end interaction core function related to a new technology, a new service and new equipment of the power distribution internet of things.
Description
Technical Field
The invention belongs to the technical field of power distribution Internet of things, and relates to a flexibly configured type 'side-end' interactive function test bed area of a low-voltage power distribution Internet of things and a management system thereof.
Background
The intellectualization of the power distribution network is an important foundation for building an energy internet and is also a key guarantee for influencing the power supply service level. The low-voltage distribution station area is the last kilometer of the connected user requirements and is also the minimum operation management unit of the power grid enterprise. Along with the rapid development of technologies such as electric vehicles, distributed photovoltaics, mutual energy storage, micro-grids and the like and the continuous deepening of electric power market reform, governments, enterprises and residents put higher requirements on the safety, economy and adaptability of low-voltage power distribution areas.
In the face of the obvious characteristics of a low-voltage distribution area, such as wide variety of types and large scale of equipment and rapid change of business application requirements, the traditional power distribution network informatization and automation construction mode is difficult to meet the requirements of high-speed development and transformation of the power distribution network in a new era. The distribution thing networking carries out the degree of depth with traditional industry thing internet of technology and distribution technology and fuses, through comprehensive interconnection, intercommunication, interoperation between distribution equipment, realizes comprehensive perception, data fusion and the intelligent application of distribution network, has plug-and-play, extensively interconnected, the characteristics of quick iteration, will can powerfully support the continuous promotion of low pressure distribution network lean management ability to and join in marriage showing improvement of net operation management and customer service level.
With the continuous deep promotion of the construction work of a novel power system taking new energy as a main body and a power distribution side power distribution internet of things, the newly-generated power distribution internet of things intelligent terminal equipment with various functions and applications is rapidly developed, iterated and applied in a large quantity. Under the background, how to rapidly and effectively quantitatively evaluate new technologies, the applicability of new equipment, and the functions and the performances of the equipment is very important. For this reason, many technical routes for testing systems are based more on the complete simulation of the structural composition of the low-voltage distribution area, i.e. the way of a true test system to meet the relevant test requirements. However, the true system mode is often large in investment, relatively fixed in system design composition and lack of sufficient flexibility, and an actual low-voltage distribution station area shows significant combination change characteristics in the aspects of branches, hierarchical structures, access elements and operation conditions, so that the true test system has poor effect in actual test application and is difficult to comprehensively and effectively test and obtain boundary conditions.
Disclosure of Invention
The invention provides a flexible configuration type power distribution Internet of things side-end interaction function test area and a management system thereof, provides a real and flexible low-voltage power distribution area environment, realizes flexible adjustment and simulation of a topological structure, an operation condition and an access load of the area environment, and further meets the test requirements of side-end equipment access adaptability and functionality and side-end equipment interconnection and interchange interaction.
In order to achieve the purpose, the invention adopts the technical scheme that: the interactive function test bed area of the low-voltage power distribution Internet of things comprises a series-parallel adjustable power distribution bed area topological net rack;
each distribution area topology network frame comprises a distribution side, a line side and a user side;
the power distribution side is connected with the primary equipment and the secondary equipment, is output by an input power supply and is connected to the line side through the leakage protection switch for shunting; the primary and secondary equipment comprises a distribution transformer or a power supply simulator, a leakage protection switch, a platform area intelligent fusion terminal, an I-type concentrator and a plurality of miniature circuit breakers;
the line side forms a plurality of levels and multi-path outgoing line branches from the distribution side leakage protection switch to the end user side, and the outgoing line branches are connected to the phase change switch, the intelligent capacitor, the SVG dynamic reactive power compensation device, the molded case circuit breaker, the miniature circuit breaker and the branch fault simulation terminal; meanwhile, a low-voltage monitoring unit is accessed, the electricity of the line side node is collected, the topological position information is obtained, and interaction is carried out with the intelligent integration terminal of the transformer area;
the platform area intelligent fusion terminal is used for monitoring information of platform area input nodes and carrying out communication interaction with various intelligent terminal devices and sensing units which are deployed at the side of the platform area through a local communication module; the I-type concentrator is used for converging data collected by a single-phase or three-phase ammeter in a user side ammeter box in the transformer area;
the user side is the tail end of the transformer area and is connected with a single-phase or three-phase simulation load, a photovoltaic power generation simulation system, a V2G charging pile simulation system, an inter-use energy storage simulation system, a single-phase or three-phase electric meter, a II-type collector and a low-voltage monitoring unit; the II type collector collects single-phase or three-phase electric meter data and carries out data interaction with the I type concentrator; the low-voltage monitoring unit and the II-type collector simultaneously perform data interaction with the platform area intelligent fusion terminal;
the platform area topology network frames are connected through an intelligent switch at the input node of the line side; in the distribution area topology network frame, slot type wiring terminals are arranged on a distribution side, a line side and a user side, so that series connection or parallel connection of a plurality of distribution areas is realized, and flexible adjustment of the distribution area topology network frame and levels is realized.
Furthermore, the series-parallel adjustable power distribution area topological net rack is designed according to the principles of multiple levels, multiple branches and multiple areas; the topological net racks in different areas are configured differently according to the principle from simple to complex, and the levels, branches and accessed electric facilities of the net racks are configured differently.
Further, the low-voltage power distribution Internet of things interactive function test bed area also comprises a bed area topological configuration control system based on a PLC and a miniature circuit breaker;
the station area topology configuration control system based on the PLC and the miniature circuit breaker comprises a PLC controller and the miniature circuit breaker, the miniature circuit breaker is connected into a hierarchy, branches, tail ends and other types of topology access nodes of a distribution station area topology net rack in a serial or parallel mode, and remote one-key setting and automatic adjustment of a station area internal net rack structure, charging pile, mutual energy storage, distributed photovoltaic, low-voltage monitoring units and sensing devices in cut-in and cut-off are achieved through the PLC.
Furthermore, a wiring slot is led out from the outgoing line of the power distribution side.
The invention also adopts the technical scheme that: the management system of the low-voltage power distribution Internet of things interactive function test bed area comprises a server host, a hub and a serial server, is connected with a V2G charging pile simulation system, an interactive energy storage simulation system, a photovoltaic power generation simulation system, a power supply simulator and a branch fault simulation terminal through a communication conversion interface module, and is based on a NET platform, a C/S software architecture and an Access database, and platform visual operation management and control of the low-voltage power distribution Internet of things interactive function test bed area are realized by adopting a multithreading and multitasking concurrency mechanism and a GDI + drawing technology.
Furthermore, the power supply simulator is used for output simulation of various power supply operation conditions, including normal conditions, three-phase imbalance, low voltage, power failure disconnection and harmonic output, and is connected to a management system for remote control.
Furthermore, the branch fault simulation terminal is used for realizing the simulation of different faults on a line side or a user side, including zero line-to-live line short circuit, live line short circuit and grounding resistance-ground (or incoming line-to-zero line), and is connected to a management system for remote control.
Furthermore, the distributed photovoltaic system is replaced by a photovoltaic power generation simulation system, and the distributed photovoltaic system is composed of a solar cell array simulator and a photovoltaic simulator, simulates different solar cell panel I-V curves, film photovoltaic cell curves, standard crystalline silicon photovoltaic cell curves, high-efficiency crystalline silicon photovoltaic cell curves and custom photovoltaic cell curves, and is connected to a management system for remote control.
Furthermore, the charging pile is replaced by a V2G charging pile simulation system, and is composed of a V2G bidirectional charging pile and a bidirectional battery simulator, charging loads of different types of electric vehicles are simulated to be accessed for charging and V2G power grid interaction behavior characteristics, and the charging piles are accessed to a management system for remote control.
Furthermore, the low-voltage distribution Internet of things interactive function test bed area is connected with an I-type concentrator and an intelligent platform area fusion terminal at a distribution side, a line side is connected with a low-voltage monitoring unit, and a user side is connected with a II-type collector and single-phase and three-phase electric meters; the I-type concentrator is used for carrying out information interaction with the single-phase and three-phase electric meters through a local communication network; the platform district intelligent fusion terminal passes through low pressure monitoring unit and is connected with local network deployment communication, realizes the information interaction with intelligence switch, SVG dynamic reactive power compensator, commutation switch, distributed photovoltaic, the energy storage of intercurping and the electric pile of filling.
The invention has the following beneficial effects: the invention provides a flexible configuration type low-voltage distribution Internet of things 'side-end' interactive function test bed area and a management system thereof.
Drawings
FIG. 1 is a schematic diagram of a topological net rack of a low-voltage power distribution Internet of things interactive function test bed area;
FIG. 2 is a schematic diagram of a zone topology configuration control system based on a PLC and a miniature circuit breaker according to the present invention;
FIG. 3 is a diagram of the architecture of the management system of the interactive function test stand area of the present invention;
FIG. 4 is a schematic diagram of a topological net rack on the distribution side of the low-voltage distribution Internet of things interactive function test bed area;
FIG. 5 is a schematic diagram of a topological net rack on the line side of the interactive function test bed area of the low-voltage power distribution Internet of things of the invention;
fig. 6 is a schematic diagram of a topological net rack at a user side of a low-voltage power distribution internet of things interactive function test bed area.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Example 1
A low-voltage distribution Internet of things interactive function test bed area comprises the following parts: the low-voltage distribution Internet of things interactive function test platform zone topology network frame and the platform zone topology configuration system based on the PLC and the miniature circuit breaker.
The topological network frame of the interactive function test bed area of the low-voltage power distribution Internet of things is designed according to the principles of multiple levels, multiple branches and multiple areas; the topological net racks in different areas are configured differently according to the principle from simple to complex, and the levels and branches of the net racks and the accessed electric facilities are configured differently. Each platform area topological network frame consists of a distribution side, a line side and a user side. The distribution side forms a path of outgoing line from an input power supply to the leakage protection switch, and the primary and secondary equipment connected to the distribution side comprises a distribution transformer (or a power supply simulator), the leakage protection switch, a platform area intelligent fusion terminal, an I-type concentrator and a plurality of miniature circuit breakers.
The platform area intelligent fusion terminal is used for monitoring information of platform area input nodes and performing communication interaction with various intelligent terminal devices and sensing units which are deployed on a platform area side through a local communication module; the I-type concentrator is used for gathering data collected by a single-phase or three-phase ammeter in a user side meter box in a station area.
The line side forms a plurality of levels and multi-path outgoing line branches from the distribution side leakage protection switch to the end user side, and the outgoing line branches are connected to the phase change switch, the intelligent capacitor, the SVG dynamic reactive power compensation device, the molded case circuit breaker, the miniature circuit breaker and the branch fault simulation terminal; meanwhile, a low-voltage monitoring unit can be accessed to acquire the electrical and topological position information of the line side node and interact with the intelligent integration terminal of the transformer area.
The user side is the tail end of the transformer area and is connected with a single-phase or three-phase simulation load, a photovoltaic power generation simulation system, a V2G charging pile simulation system, an inter-use energy storage simulation system, a single-phase or three-phase electric meter, a II-type collector and a low-voltage monitoring unit. The II type collector collects single-phase or three-phase electric meter data and carries out data interaction with the I type concentrator; and the low-voltage monitoring unit and the II-type collector simultaneously perform data interaction with the platform area intelligent fusion terminal.
The platform area topology frames are connected through an intelligent switch at a line side input node; in the distribution area topology network frame, slot type wiring terminals are arranged on a distribution side, a line side and a user side so as to realize series or parallel connection of a plurality of distribution areas and realize flexible adjustment of the distribution area topology network frame and levels.
The platform zone topology configuration control system based on the PLC and the miniature circuit breaker comprises a PLC controller and the miniature circuit breaker; the miniature circuit breaker is connected into the topological access nodes of the levels, branches, tail ends and other types of topological net racks of the distribution area in a serial or parallel mode, and remote one-key setting and automatic adjustment of the net rack structure in the distribution area, charging pile, energy storage, photovoltaic, low-voltage monitoring unit and other novel intelligent equipment and sensing device access cutting are achieved through the PLC.
Example 2
The utility model provides a management system in interactive function test bench district of low pressure distribution thing networking, interactive function test bench district of low pressure distribution thing networking include: the low-voltage distribution Internet of things interactive function test platform zone topology network frame and the platform zone topology configuration system based on the PLC and the miniature circuit breaker.
The topological network frame of the interactive function test bed area of the low-voltage power distribution Internet of things is designed according to the principles of multiple levels, multiple branches and multiple areas; the topological net racks in different areas are configured differently according to the principle from simple to complex, and the levels and branches of the net racks and the accessed electric facilities are configured differently. Each platform area topological network frame consists of a distribution side, a line side and a user side. The distribution side forms a path of outgoing line from an input power supply to the leakage protection switch, and the primary and secondary equipment connected to the distribution side comprises a distribution transformer (or a power supply simulator), the leakage protection switch, a platform area intelligent fusion terminal, an I-type concentrator and a plurality of miniature circuit breakers.
The platform area intelligent fusion terminal is used for monitoring information of platform area input nodes and performing communication interaction with various intelligent terminal devices and sensing units which are deployed on a platform area side through a local communication module; the I-type concentrator is used for gathering data collected by a single-phase or three-phase ammeter in a user side meter box in a station area.
The line side forms a plurality of levels and multi-path outgoing line branches from the distribution side leakage protection switch to the end user side, and the outgoing line branches are connected to the phase change switch, the intelligent capacitor, the SVG dynamic reactive power compensation device, the molded case circuit breaker, the miniature circuit breaker and the branch fault simulation terminal; meanwhile, a low-voltage monitoring unit can be accessed to acquire the electrical and topological position information of the line side node and interact with the intelligent integration terminal of the transformer area.
The user side is the tail end of the transformer area and is connected with a single-phase or three-phase simulation load, a photovoltaic power generation simulation system, a V2G charging pile simulation system, an inter-use energy storage simulation system, a single-phase or three-phase electric meter, a II-type collector and a low-voltage monitoring unit. The II type collector collects single-phase or three-phase electric meter data and carries out data interaction with the I type concentrator; and the low-voltage monitoring unit and the II-type collector simultaneously perform data interaction with the platform area intelligent fusion terminal.
The platform area topology frames are connected through an intelligent switch at a line side input node; in the distribution area topology network frame, slot type wiring terminals are arranged on a distribution side, a line side and a user side so as to realize series or parallel connection of a plurality of distribution areas and realize flexible adjustment of the distribution area topology network frame and levels.
The platform zone topology configuration control system based on the PLC and the miniature circuit breaker comprises a PLC controller and the miniature circuit breaker; the miniature circuit breaker is connected into the topological access nodes of the levels, branches, tail ends and other types of topological net racks of the distribution area in a serial or parallel mode, and remote one-key setting and automatic adjustment of the net rack structure in the distribution area, charging pile, energy storage, photovoltaic, low-voltage monitoring unit and other novel intelligent equipment and sensing device access cutting are achieved through the PLC.
The management system of the low-voltage distribution Internet of things interactive function test bed area consists of a server host, a hub and a serial server, is connected with a V2G charging pile simulation system, an interactive energy storage simulation system, a distributed photovoltaic simulation system, a power supply simulator and a branch fault simulation terminal through a communication conversion interface module, and is based on a NET platform, a C/S software architecture and an Access database, and realizes platform visual operation management and control of the distribution Internet of things 'side-end' interactive function test bed area by adopting a multithreading and multitasking concurrency mechanism and a GDI + drawing technology.
The power supply simulator is used for output simulation of various power supply operation conditions, including normal conditions, three-phase imbalance, low voltage, power failure and disconnection, harmonic output and the like, and is connected to a platform area management system for remote control.
The branch fault simulation terminal is used for realizing the simulation of different faults on a line side or a user side, including zero live wire short circuit, live wire short circuit and grounding resistance-ground (or incoming line zero line), and is connected to a platform test management system for remote control.
The distributed photovoltaic system is replaced by a photovoltaic simulation system, is composed of a solar cell array simulator and a photovoltaic simulator, can simulate different solar cell panel I-V curves, film photovoltaic cell curves, standard crystalline silicon photovoltaic cell curves, high-efficiency crystalline silicon photovoltaic cell curves, custom photovoltaic cell curves and the like, and is connected to a platform area test management system for remote control.
The charging pile is replaced by a V2G charging pile simulation system, and is composed of a V2G bidirectional charging pile and a bidirectional battery simulator, so that charging loads of different types of electric vehicles can be simulated to be accessed for charging and V2G power grid interaction behavior characteristics, and the charging pile is accessed to a platform area test management system for remote control.
The invention simulates physical characteristics of an actual transformer area in a semi-true mode, generates a multi-transformer area, a multi-branch and multi-level complex topology grid structure and multiple operation conditions by one key, flexibly constructs a typical transformer area scene of a power distribution network and accesses various novel intelligent devices and sensing devices, and has the flexibility and customizable characteristics of a laboratory detection platform while highly restoring a real low-voltage transformer area operation environment.
Example 3
The utility model provides a management system in interactive function test bench district of low pressure distribution thing networking, interactive function test bench district of low pressure distribution thing networking include: the low-voltage distribution Internet of things interactive function test platform zone topology network frame and the platform zone topology configuration system based on the PLC and the miniature circuit breaker.
The low-voltage distribution Internet of things interactive function test bed area topological net rack is composed of 3 bed areas, and different bed areas are designed in a differentiated mode according to multiple levels and multiple branches; wherein, each platform district holds in palm topological rack and comprises distribution side, line side and user side. The power distribution sides of the 3 transformer areas form a path of outgoing lines from an input power supply to the leakage protection switch, and the primary and secondary devices are connected to the distribution transformer (or power supply simulator), the leakage protection switch, the transformer area intelligent fusion terminal, the I-type concentrator and the miniature circuit breakers; meanwhile, a wiring slot is led out from the outgoing line.
The platform area intelligent fusion terminal is used for monitoring information of platform area input nodes and performing communication interaction with various intelligent terminal devices and sensing units which are deployed on a platform area side through a local communication module; the I-type concentrator is used for gathering data collected by a single-phase or three-phase ammeter in a user side meter box in a station area.
The line side is designed to be 1 level and 3-4 branch outgoing lines, a branch outgoing line 1 of the platform area 1 is connected with an intelligent capacitor, a branch outgoing line 2 is connected with a commutation switch, a branch outgoing line 3 is connected with a branch switch (a molded case circuit breaker), a branch outgoing line 1 of the platform area 2 is connected with the intelligent capacitor, a branch outgoing line 2 is connected with an SVG (dynamic reactive power compensator), a branch outgoing line 3 is connected with the commutation switch, a branch outgoing line 4 is connected with the branch switch, a branch outgoing line 1 of the platform area 3 is connected with the intelligent capacitor, a branch outgoing line 2 is connected with the commutation switch, a branch outgoing line 3 is connected with the SVG, and a branch outgoing line 4 is connected with the branch switch; meanwhile, a branch fault simulation terminal is connected to the line side input line.
The system is connected with a single-phase or three-phase simulation load, a photovoltaic power generation simulation system, a V2G charging pile simulation system, a mutual energy storage simulation system, a single-phase or three-phase electric meter, a II-type collector and a low-voltage monitoring unit. The II type collector collects single-phase or three-phase electric meter data and carries out data interaction with the I type concentrator; and the low-voltage monitoring unit and the II-type collector simultaneously perform data interaction with the platform area intelligent fusion terminal.
The platform area topology frames are connected through an intelligent switch at a line side input node; in the distribution area topology network frame, slot type wiring terminals are arranged on a distribution side, a line side and a user side so as to realize series or parallel connection of a plurality of distribution areas and realize flexible adjustment of the distribution area topology network frame and levels.
The platform zone topology configuration control system based on the PLC and the miniature circuit breaker comprises a PLC controller and the miniature circuit breaker; the miniature circuit breaker is connected into the topological access nodes of the levels, branches, tail ends and other types of topological net racks of the distribution area in a serial or parallel mode, and remote one-key setting and automatic adjustment of the net rack structure in the distribution area, charging pile, energy storage, photovoltaic, low-voltage monitoring unit and other novel intelligent equipment and sensing device access cutting are achieved through the PLC.
The low-voltage distribution Internet of things interactive function test bed area management system consists of a server host, a hub and a serial server, is connected with a V2G charging pile simulation system, an interactive energy storage simulation system, a photovoltaic power generation simulation system, a power supply simulator and a branch fault simulation terminal through a communication conversion interface module, and is based on a NET platform, a C/S software architecture and an Access database, and realizes platform visual operation management and control of a distribution Internet of things 'side-end' interactive function test bed area by adopting a multithreading and multitasking concurrency mechanism and a GDI + drawing technology.
The power supply simulator is used for output simulation of various power supply operation conditions, including normal conditions, three-phase imbalance, low voltage, power failure and disconnection, harmonic output and the like, and is connected to a platform area management system for remote control.
The branch fault simulation terminal is used for realizing the simulation of different faults on a line side or a user side, including zero live wire short circuit, live wire short circuit and grounding resistance-ground (or incoming line zero line), and is connected to a platform test management system for remote control.
The distributed photovoltaic system is replaced by a photovoltaic simulation system, is composed of a solar cell array simulator and a photovoltaic simulator, can simulate different solar cell panel I-V curves, film photovoltaic cell curves, standard crystalline silicon photovoltaic cell curves, high-efficiency crystalline silicon photovoltaic cell curves, custom photovoltaic cell curves and the like, and is connected to a platform area test management system for remote control.
The charging pile is replaced by a V2G charging pile simulation system, and is composed of a V2G bidirectional charging pile and a bidirectional battery simulator, so that charging loads of different types of electric vehicles can be simulated to be accessed for charging and V2G power grid interaction behavior characteristics, and the charging pile is accessed to a platform area test management system for remote control.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. The interactive function test bed area of the low-voltage power distribution Internet of things is characterized by comprising a series-parallel adjustable power distribution bed area topological net rack;
each distribution area topology network frame comprises a distribution side, a line side and a user side;
the power distribution side is connected with the primary equipment and the secondary equipment, is output by an input power supply and is connected to the line side through the leakage protection switch for shunting; the primary and secondary equipment comprises a distribution transformer or a power supply simulator, a leakage protection switch, a platform area intelligent fusion terminal, an I-type concentrator and a plurality of miniature circuit breakers;
the line side forms a plurality of levels and multi-path outgoing line branches from the distribution side leakage protection switch to the end user side, and the outgoing line branches are connected to the phase change switch, the intelligent capacitor, the SVG dynamic reactive power compensation device, the molded case circuit breaker, the miniature circuit breaker and the branch fault simulation terminal; meanwhile, a low-voltage monitoring unit is accessed, the electricity of the line side node is collected, the topological position information is obtained, and interaction is carried out with the intelligent integration terminal of the transformer area;
the platform area intelligent fusion terminal is used for monitoring information of platform area input nodes and carrying out communication interaction with various intelligent terminal devices and sensing units which are deployed at the side of the platform area through a local communication module; the I-type concentrator is used for converging data collected by a single-phase or three-phase ammeter in a user side ammeter box in the transformer area;
the user side is the tail end of the transformer area and is connected with a single-phase or three-phase simulation load, a photovoltaic power generation simulation system, a V2G charging pile simulation system, an inter-use energy storage simulation system, a single-phase or three-phase electric meter, a II-type collector and a low-voltage monitoring unit; the II type collector collects single-phase or three-phase electric meter data and carries out data interaction with the I type concentrator; the low-voltage monitoring unit and the II-type collector simultaneously perform data interaction with the platform area intelligent fusion terminal;
the platform area topology network frames are connected through an intelligent switch at the input node of the line side; in the distribution area topology network frame, slot type wiring terminals are arranged on a distribution side, a line side and a user side, so that series connection or parallel connection of a plurality of distribution areas is realized, and flexible adjustment of the distribution area topology network frame and levels is realized.
2. The interactive function test bed area of the low-voltage power distribution internet of things according to claim 1, wherein the topology network frame of the series-parallel adjustable power distribution bed area is designed according to the principles of multiple levels, multiple branches and multiple zones; the topological net racks in different areas are configured differently according to the principle from simple to complex, and the levels, branches and accessed electric facilities of the net racks are configured differently.
3. The low-voltage power distribution internet of things interactive function test bed area according to claim 1, further comprising a bed area topology configuration control system based on a PLC and a miniature circuit breaker;
the station area topology configuration control system based on the PLC and the miniature circuit breaker comprises a PLC controller and the miniature circuit breaker, the miniature circuit breaker is connected into a hierarchy, branches, tail ends and other types of topology access nodes of a distribution station area topology net rack in a serial or parallel mode, and remote one-key setting and automatic adjustment of a station area internal net rack structure, charging pile, mutual energy storage, distributed photovoltaic, low-voltage monitoring units and sensing devices in cut-in and cut-off are achieved through the PLC.
4. The low-voltage power distribution internet of things interaction function test bed area as claimed in any one of claims 1 to 3, wherein a wiring slot is led out from the power distribution side at an outgoing line.
5. The management system of the low-voltage distribution Internet of things interactive function test bed area as claimed in any one of claims 1 to 4, which comprises a server host, a hub and a serial server, wherein the management system is connected with a V2G charging pile simulation system, an interactive energy storage simulation system, a photovoltaic power generation simulation system, a power supply simulator and a branch fault simulation terminal through a communication conversion interface module, and platform visual operation management and control of the low-voltage distribution Internet of things interactive function test bed area are realized by adopting a multithreading and multitasking concurrency mechanism and a GDI + drawing technology based on a NET platform, a C/S software architecture and an Access database.
6. The management system of claim 5, wherein the power supply simulator is used for output simulation of various power supply operation conditions, including normal conditions, three-phase imbalance, low voltage, power failure, line break and harmonic output, and is connected to the management system for remote control.
7. The management system of claim 5, wherein the branch fault simulation terminal is configured to simulate different faults on the line side or the user side, including zero live short, ground resistance-ground, and access the management system for remote control.
8. The management system of claim 5, wherein the distributed photovoltaics are replaced by a photovoltaic power generation simulation system, comprised of a solar cell array simulator and a photovoltaic simulator, which simulate different solar panel I-V curves, simulate thin film photovoltaic cell curves, simulate standard crystalline silicon photovoltaic cell curves, simulate high efficiency crystalline silicon photovoltaic cell curves, and customize photovoltaic cell curves, and are accessed to the management system for remote control.
9. The management system of claim 5, wherein the charging pile is replaced by a V2G charging pile simulation system, is composed of a V2G bidirectional charging pile and a bidirectional battery simulator, simulates charging load access of different types of electric vehicles for charging and V2G power grid interaction behavior characteristics, and is accessed to the management system for remote control.
10. The management system according to claim 4, wherein the low-voltage distribution Internet of things interactive function test bed area is connected with an I-type concentrator and an intelligent platform area fusion terminal at a distribution and transformation side, a line side is connected with a low-voltage monitoring unit, and a user side is connected with a II-type collector and single-phase and three-phase electric meters; the I-type concentrator is used for carrying out information interaction with the single-phase and three-phase electric meters through a local communication network; the platform district intelligent fusion terminal passes through low pressure monitoring unit and is connected with local network deployment communication, realizes the information interaction with intelligence switch, SVG dynamic reactive power compensator, commutation switch, distributed photovoltaic, the energy storage of intercurping and the electric pile of filling.
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