Distributed system for quickly managing low-voltage power distribution system and controlling power supply switching

Abstract

The utility model discloses a low-voltage power distribution system rapid management and power supply switching control distributed system which comprises a controller, an adapter, a power supply 1, a power supply 2, a power supply 3, a power supply 4 and power supply breakers, a bus I is connected with the power supply 1 and the power supply 2 through a power supply breaker MIC1 and a power supply breaker MIC2, and a bus II is connected with the power supply 3 and the power supply 4 through a power supply breaker MIC3 and a power supply breaker MIC4. The bus I and the bus II are connected through a power circuit breaker MIC5; wherein the number of the adapters is a plurality, and the controller is connected with the plurality of adapters through the RJ45 network interface. According to the utility model, the controller directly exchanges real-time data with the plurality of adapters in a peer-to-peer manner, rapid management and switching of a plurality of power supplies are completed, intelligent control of a complex system can be realized, the power supply reliability is further improved, and the mode system is simple in structure, good in flexibility, fast in action speed, simple in operation and maintenance, and high in reliability. The method is suitable for low-voltage power distribution systems with high power supply reliability requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution network automation, in particular to a distributed system for rapidly managing and controlling power supply switching of a low-voltage power distribution system. Background Art

[0002] With the rapid development of modern power systems, low-voltage distribution systems are an important part of power grids transmitting electricity to users. People are paying more and more attention to issues such as power safety, efficient operation and maintenance management of power, and intelligent and digital distribution systems. Distribution automation control can effectively realize the integrated management of power distribution "source", "grid" and "load", and is an effective means to solve these core problems.

[0003] In the existing technology, the current low-voltage power distribution system equipment is all controlled individually, and it is impossible to complete the centralized control of multiple switches. For the distributed structure of the distribution automation system, the host and the slave are connected by network cables or optical fibers. If the traditional Modbus protocol is used, it is difficult to meet the needs of fast switching. For this reason, we propose a distributed system for fast management and control of power switching of low-voltage power distribution systems. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide a distributed system for rapid management and control of power switching of a low-voltage power distribution system. By directly exchanging real-time data with multiple adapters through a controller, rapid management and switching of multiple power supplies can be completed, thereby realizing intelligent control of complex systems and further improving power supply reliability. This mode system has a simple structure, good flexibility, fast operation speed, and simple operation and maintenance. It is suitable for low-voltage power distribution systems with high requirements for power supply reliability.

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solutions: a distributed system for quickly managing and controlling power switching of a low-voltage power distribution system, comprising a controller, an adapter, a power supply 1, a power supply 2, a power supply 3, a power supply 4, and a power circuit breaker,

[0006] Busbar I is connected to power source 1 and power source 2 through power circuit breakers MIC1 and MIC2, busbar II is connected to power source 3 and power source 4 through power circuit breakers MIC3 and MIC4, and busbar I and busbar II are connected through power circuit breaker MIC5;

[0007] There are several adapters, and the controller is connected to the multiple adapters via an RJ45 network interface.

[0008] As a preferred solution of a distributed system for quickly managing and controlling power switching of a low-voltage power distribution system described in the utility model, each adapter and each circuit breaker are connected by a cable to collect circuit breaker status signals and control the opening and closing of the corresponding power supply.

[0009] As a preferred solution of a distributed system for quickly managing and controlling power switching of a low-voltage power distribution system described in the utility model, bus I is powered by power supply 1, bus I is switched from power supply 1 to power supply 2, the controller sends an opening instruction to adapter 1, and adapter 1 controls power supply 1 circuit breaker MIC1 to open; the controller sends a closing instruction to adapter 2 according to the power status of power supply 2 collected by adapter 2, and adapter 2 controls power supply 2 circuit breaker MIC2 to close.

[0010] As a preferred solution of a distributed system for rapid management and control of power switching of a low-voltage power distribution system described in the utility model, bus II is powered by power supply 3, bus II is switched from power supply 3 to power supply 4, the controller sends an opening instruction to adapter 3, adapter 3 controls power supply 3 circuit breaker MIC3 to open; the controller sends a closing instruction to adapter 4 according to the power status of power supply 4 collected by adapter 4, and adapter 4 controls power supply 2 circuit breaker MIC4 to close.

[0011] As a preferred solution of a distributed system for rapid management and control of power switching of a low-voltage power distribution system described in the utility model, bus I is powered by power supply 1, bus II is powered by power supply 3, and power is switched from bus I to bus II. The controller sends an opening instruction to adapter 1, and adapter 1 controls power supply 1 circuit breaker MIC1 to open; the controller sends a closing instruction to adapter 5 according to the power status of power supply 3 collected by adapter 3 and the status of bus tie circuit breaker 5 collected by adapter 5, and adapter 5 controls bus tie circuit breaker MIC5 to close.

[0012] As a preferred solution of the distributed system for rapid management and control of power switching of a low-voltage power distribution system described in the utility model, the controller and multiple adapters communicate using the IEC61850-GOOSE communication protocol.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] By directly exchanging real-time data between multiple adapters through the controller, rapid management and switching of multiple power supplies can be completed, intelligent control of complex systems can be achieved, and power supply reliability can be further improved. This mode has a simple system structure, good flexibility, fast operation speed, and simple operation and maintenance. It is suitable for low-voltage distribution systems with high requirements for power supply reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 It is a configuration diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0020] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] The utility model provides a distributed system for rapid management and control of power switching of a low-voltage power distribution system. Through the controller, multiple adapters directly exchange real-time data peer-to-peer, rapid management and switching of multiple power supplies are completed, and intelligent control of complex systems can be realized, further improving power supply reliability. This mode system has a simple structure, good flexibility, fast action speed, and simple operation and maintenance. It is suitable for low-voltage power distribution systems with high requirements for power supply reliability.

[0023] Figure 1 , Figure 2 The utility model shows a schematic diagram of the overall structure of a distributed system for fast management and control of power switching of a low-voltage power distribution system. Figure 1 , Figure 2The main structure of this embodiment includes: a controller, an adapter, a power supply 1, a power supply 2, a power supply 3, a power supply 4, and a power circuit breaker. The bus I connects the power supply 1 and the power supply 2 through the power circuit breaker MIC1 and the power circuit breaker MIC2, the bus II connects the power supply 3 and the power supply 4 through the power circuit breaker MIC3 and the power circuit breaker MIC4, and the bus I and the bus II are connected through the power circuit breaker MIC5;

[0024] There are several adapters, and the controller is connected to the multiple adapters via an RJ45 network interface.

[0025] During use, the controller and adapter 1, adapter 2, adapter 3, adapter 4, and adapter 5 communicate using the IEC61850-GOOSE communication protocol, and transmit state quantities and control information through the GOOSE mechanism for rapid centralized control of the distributed architecture. Adapter 1 collects and controls the status of circuit breaker MIC1, adapter 2 collects and controls the status of circuit breaker MIC2, adapter 3 collects and controls the status of circuit breaker MIC3, adapter 4 collects and controls the status of circuit breaker MIC4, and adapter 4 collects and controls the status of circuit breaker MIC4. When bus I is powered by power supply 1 and bus I is switched from power supply 1 to power supply 2, the controller sends an opening command to adapter 1, and adapter 1 controls the opening of power supply 1 circuit breaker MIC1; the controller sends a closing command based on the power supply status of power supply 2 collected by adapter 2. The controller sends a command to adapter 2, and adapter 2 controls the power supply 2 circuit breaker MIC2 to close. When bus II is powered by power supply 3 and bus II is switched from power supply 3 to power supply 4, the controller sends an opening command to adapter 3, and adapter 3 controls the power supply 3 circuit breaker MIC3 to open. The controller sends a closing command to adapter 4 according to the power supply status of power supply 4 collected by adapter 4, and adapter 4 controls the power supply 2 circuit breaker MIC4 to close. When bus I is powered by power supply 1 and bus II is powered by power supply 3 and switched from bus I to bus II, the controller sends an opening command to adapter 1, and adapter 1 controls the power supply 1 circuit breaker MIC1 to open. The controller sends a closing command to adapter 5 according to the power supply status of power supply 3 collected by adapter 3 and the status of bus tie circuit breaker 5 collected by adapter 5, and adapter 5 controls the bus tie circuit breaker MIC5 to close.

[0026] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A distributed system for fast management and control of power switching of a low-voltage power distribution system, comprising a controller, an adapter, a power source 1, a power source 2, a power source 3, a power source 4, and a power circuit breaker, characterized in that: Busbar I is connected to power source 1 and power source 2 through power circuit breakers MIC1 and MIC2, busbar II is connected to power source 3 and power source 4 through power circuit breakers MIC3 and MIC4, and busbar I and busbar II are connected through power circuit breaker MIC5; There are several adapters, and the controller is connected to the multiple adapters via an RJ45 network interface.

2. A distributed system for rapid management and control of power switching of a low-voltage power distribution system according to claim 1, characterized in that: Each adapter is connected to each circuit breaker through a cable to collect circuit breaker status signals and control the opening and closing of the corresponding power supply.

3. A distributed system for rapid management and control of power switching of a low-voltage power distribution system according to claim 2, characterized in that: Bus I is powered by power supply 1, and bus I is switched from power supply 1 to power supply 2. The controller sends an opening command to adapter 1, and adapter 1 controls power supply 1 circuit breaker MIC1 to open. The controller sends a closing command to adapter 2 according to the power supply status of power supply 2 collected by adapter 2, and adapter 2 controls power supply 2 circuit breaker MIC2 to close.

4. A distributed system for rapid management and control of power switching of a low-voltage power distribution system according to claim 3, characterized in that: Bus II is powered by power supply 3, and bus II is switched from power supply 3 to power supply 4. The controller sends an opening command to adapter 3, and adapter 3 controls power supply 3 circuit breaker MIC3 to open. The controller sends a closing command to adapter 4 according to the power status of power supply 4 collected by adapter 4, and adapter 4 controls power supply 2 circuit breaker MIC4 to close.

5. A distributed system for rapid management and control of power switching of a low-voltage power distribution system according to claim 4, characterized in that: Bus I is powered by power supply 1, and bus II is powered by power supply 3. The power supply is switched from bus I to bus II, and the controller sends an opening command to adapter 1. Adapter 1 controls power supply 1 circuit breaker MIC1 to open. The controller sends a closing command to adapter 5 according to the power supply status of power supply 3 collected by adapter 3 and the status of bus tie circuit breaker 5 collected by adapter 5, and adapter 5 controls bus tie circuit breaker MIC5 to close.

6. A distributed system for rapid management and control of power switching of a low-voltage power distribution system according to claim 5, characterized in that: The controller and the multiple adapters communicate with each other using the IEC61850-GOOSE communication protocol.

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