CN218771257U

CN218771257U - Circuit and reactor integrated protection device

Info

Publication number: CN218771257U
Application number: CN202220855370.3U
Authority: CN
Inventors: 行武; 陈福锋; 薛明军; 郭晓; 张灏
Original assignee: Nanjing SAC Automation Co Ltd
Current assignee: Nanjing SAC Automation Co Ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2023-03-28
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a circuit and reactor integrated protection device, which comprises a first protection module, a second protection module and a collection module, wherein the first protection module and the second protection module are connected in parallel and are connected with the collection module through a motherboard module; the first protection module and the second protection module are connected with a trip module through a motherboard; the utility model discloses lie in having carried out the modularized design with line protection device function and reactor protection device function to with two module integration to a device, reduced the repeated collection of current-voltage volume, reduced tripping operation export quantity simultaneously.

Description

Circuit and reactor integrated protection device

Technical Field

The utility model relates to a circuit and reactor integration protection device belongs to power system relay protection technical field.

Background

The practice of the "dual carbon" goal in the power industry is to construct new power systems that are dominated by new energy sources, represented by wind power generation. The offshore booster transformer substation is limited by the area of an offshore platform, all equipment is required to be as compact and integrated as possible, a secondary system serving as an important component of the offshore booster transformer substation is basically a continuous onshore transformer substation design scheme, and no specific optimization measure is provided.

Because the line parallel reactor is directly connected with the line without a switch, the switches on two sides of the line can only be tripped after the reactor fails, and simultaneously, the voltage acquired by the reactor and the line voltage are the same group of voltage, so that the line protection and the reactor protection have the condition of integrated intensive design.

The circuit protection and the reactor protection are two sets of independent protection, the protection screen cabinets are respectively and independently assembled, the occupied space is large, wiring is complex, and at present, a protection device which can meet the integrated design of the circuit protection and the reactor protection does not exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a circuit and reactor integration protection device.

A line and reactor integrated protection device comprises a first protection module, a second protection module and a collection module, wherein the first protection module and the second protection module are connected in parallel and are connected with the collection module through a motherboard module; the first protection module and the second protection module are connected with a trip module through a motherboard.

Furthermore, the first protection module comprises a first CPU, a first FPGA chip and a first AD chip, the first AD chip is connected with the acquisition module through a motherboard, the first FPGA chip is connected with the first AD chip, and the first CPU is connected with the first FPGA chip.

Further, the protection module II comprises a second CPU, a second FPGA chip and a second AD chip, the second AD chip is connected with the acquisition module through a mother board, the second FPGA chip is connected with the second AD chip, and the second CPU is connected with the second FPGA chip.

The power module supplies power to the line protection module, the reactor protection module, the trip module and the human-computer module simultaneously through the motherboard, and the trip module, the human-computer module, the line protection module and the reactor protection module are connected with the liquid crystal module through the motherboard.

Further, the man-machine module is simultaneously connected with the line protection module, the reactor protection module and the trip module through the motherboard.

Further, the device also comprises a shell of the rectangular box body, and the shell is used for installing a line protection module, a reactor protection module, a collection module, a power supply module, a man-machine module and a liquid crystal module.

Further, an indicator light is arranged on the shell.

Further, the shell is provided with a touch liquid crystal display screen.

Compared with the prior art, the utility model discloses the beneficial effect who reaches: the utility model is characterized in that the circuit protection device function and the reactor protection device function are designed in a modularized way, and two modules are integrated into one device, thereby reducing the repeated collection of current and voltage quantity and reducing the quantity of tripping outlets;

secondly, after the protection of the circuit and the reactor is integrally designed, the number of protection equipment in the transformer substation is reduced, the protection screen cabinet and the occupied area are further reduced, the workload of secondary wiring is reduced, and the problem of large workload of limited space, operation and maintenance of the offshore booster station is solved.

Drawings

FIG. 1 is a schematic view of the structure of the device of the present invention;

FIG. 2 is a schematic diagram of the protection configuration of the present invention;

FIG. 3 is a front view of the device;

FIG. 4 is a rear view of the device;

FIG. 5 is a schematic diagram of a sampling module;

FIG. 6 is a schematic diagram of a protection module;

FIG. 7 is a schematic diagram of a human machine module;

FIG. 8 is a schematic diagram of a trip module;

fig. 9 is a schematic diagram of a power module.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 and 2, by taking an M-side line as an example, the present embodiment provides a line and reactor integrated protection device, which includes a first protection module and a second protection module, where the first protection module and the second protection module can be plugged with a line protection module and a reactor protection module according to circumstances, and the first protection module and the second protection module obtain sampling data in parallel through a motherboard module, and perform protection logic determination at the same time, and connect with a trip module through the motherboard to complete outlet trip.

The circuit and reactor integrated protection device 1 is connected with a circuit local side current transformer 2 and a circuit local side voltage transformer 3, and is simultaneously connected with a reactor head end current transformer 4 and a reactor tail end current transformer 5, so that current and voltage analog quantity data required by the circuit protection and reactor protection functions are acquired, and is simultaneously connected with a circuit local side switch 6 and an opposite side protection device 7.

The protection module I comprises a first CPU, a first FPGA chip and a first AD chip, the first AD chip and the acquisition module acquire current and voltage analog quantity acquisition data required by line protection through a mother board, the first FPGA chip is connected with the first AD chip to acquire digital quantity data output by the first AD chip, the first CPU is connected with the first FPGA chip to acquire current and voltage sub-harmonic data output by the first FPGA chip, and meanwhile, the first FPGA chip transmits the sampling data of the local side to the opposite side protection device.

The protection module II comprises a second CPU, a second FPGA chip and a second AD chip, the second AD chip and the acquisition module acquire current and voltage analog quantity acquisition data required by protection of the reactor through a mother board, the second FPGA chip is connected with the second AD chip to acquire digital quantity data output by the second AD chip, and the second CPU is connected with the second FPGA chip to acquire current and voltage sub-harmonic data output by the second FPGA chip.

Furthermore, the integrated protection device also comprises a power supply module, a man-machine module, a trip module, a collection module and a liquid crystal module, wherein the power supply module simultaneously supplies power to the line protection module, the reactor protection module, the trip module and the man-machine module through a motherboard.

The man-machine module is simultaneously connected with the line protection module, the reactor protection module and the trip module through the motherboard to acquire current and voltage data and device state information and send the information to the liquid crystal module for display.

The tripping module is connected with the line protection module and the reactor protection module simultaneously through the motherboard to obtain a protection logic judgment result and a tripping driving signal, and the relay is driven to trip according to the signal.

The acquisition module is simultaneously connected with the line protection module and the reactor protection module through a motherboard, and the acquired current and voltage analog quantities of the line and the reactor are sent to the line protection module and the reactor protection module.

The liquid crystal module is simultaneously connected with the line protection module, the reactor protection module and the man-machine module through the motherboard, and displays the received current and voltage data of the line and the reactor and the device state information, so that the maintenance and the checking are convenient.

As shown in fig. 3, the portable electronic device further comprises a casing of the rectangular box body, the height of the casing is 166mm, the width of the casing is 267mm, the length of the casing is 483mm, seven indicator lights are arranged on the casing, the seven indicator lights are respectively operation 8, abnormity 9, overhaul 10, locking main protection 11, tripping operation 12, standby 13 and standby 14, operation lighting indicates that the device normally operates, abnormal lighting indicates that the device gives an alarm, overhaul lighting indicates that the device is in an overhaul state, locking main protection lighting indicates that the main protection function of the device is lost, tripping operation lighting indicates that the device trips out, meanwhile, the casing is provided with a touch liquid crystal display screen 15, the height of liquid crystal is 90mm, the width of the liquid crystal display screen is 120mm, the portable electronic device is used for displaying device state data, and operation and maintenance are convenient.

As shown in fig. 4, the integrated protection device for the line and the reactor mainly comprises a collection module, two protection function modules, a man-machine module, a trip module and a power module, wherein the collection module is responsible for collecting current voltage of the current side of the line and current of the tail end of the head end of the reactor, the protection function module is responsible for protection logic judgment and sample data transmission, the man-machine module is responsible for sample data and device state data collection and transmission, the trip module is responsible for receiving trip commands and tripping an outlet, and the power module is responsible for supplying power to the device module.

According to the circuit and reactor integrated protection device, the circuit protection device function and the reactor protection device function are designed in a modularized mode, two modules are integrated into one device, repeated collection of current and voltage is reduced, and the number of tripping outlets is reduced.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A line and reactor integrated protection device is characterized by comprising a first protection module, a second protection module and a collection module, wherein the first protection module and the second protection module are connected in parallel and are connected with the collection module through a motherboard module; and the first protection module and the second protection module are connected with a trip module through a motherboard.

2. The protection device for the line and reactor integration according to claim 1, wherein the first protection module comprises a first CPU, a first FPGA chip and a first AD chip, the first AD chip is connected with the acquisition module through a motherboard, the first FPGA chip is connected with the first AD chip, and the first CPU is connected with the first FPGA chip.

3. The protection device for the line and reactor integration according to claim 1, wherein the second protection module comprises a second CPU, a second FPGA chip and a second AD chip, the second AD chip is connected with the acquisition module through a motherboard, the second FPGA chip is connected with the second AD chip, and the second CPU is connected with the second FPGA chip.

4. The protection device of claim 1, further comprising a power module, a man-machine module, and a liquid crystal module, wherein the power module simultaneously supplies power to the line protection module, the reactor protection module, the trip module, and the man-machine module via a motherboard, and wherein the trip module, the man-machine module, the line protection module, and the reactor protection module are connected to the liquid crystal module via the motherboard.

5. The protection device for the integration of the circuit and the reactor as claimed in claim 4, wherein the man-machine module is connected with the circuit protection module, the reactor protection module and the trip module simultaneously through a motherboard.

6. The protection device for the integration of the circuit and the reactor as claimed in claim 4, further comprising a housing of a rectangular box body, wherein the housing is used for installing a circuit protection module, a reactor protection module, a collection module, a power supply module, a man-machine module and a liquid crystal module.

7. The protection device for the integration of the circuit and the reactor as recited in claim 6, wherein an indicator light is provided on the housing.

8. The protection device integrating the circuit and the reactor as claimed in claim 6, wherein the case is provided with a touch liquid crystal display.