CN213547190U

CN213547190U - Novel relay protection device for digital traction substation

Info

Publication number: CN213547190U
Application number: CN202022358867.8U
Authority: CN
Inventors: 闫兆辉; 赵双石; 陈东阳
Original assignee: Tianjin Keyvia Electric Co ltd
Current assignee: Tianjin Keyvia Electric Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model provides a be used for novel relay protection device of digital traction substation, including digital protection function module, merging cells function module, intelligent terminal function module, power module, backplate and human-computer interaction HMI module, digital protection function module pass through the backplate and link to each other with merging cells function module, intelligent terminal function module, human-computer interaction HMI module, power module pass through the backplate and link to each other with digital protection function module, merging cells function module, intelligent terminal function module and human-computer interaction HMI module respectively, digital protection function module, merging cells function module, intelligent terminal function module share CPU module and GOOSE SV module. A be used for novel relay protection device of digital traction substation has solved the unable adaptation of novel relay protection device of transformer substation and has had the difference nature when each traction substation function of transformer substation and configuration planning, lead to newly-increased functional module available space not enough problem.

Description

Novel relay protection device for digital traction substation

Technical Field

The utility model belongs to traction substation relay protection field especially relates to a be used for novel relay protection device of digital traction substation.

Background

In the process of newly building a digital traction substation or digitally transforming a conventional traction substation, the digital protection device is an important component of a bay level, and the merging unit and the intelligent terminal are important components in a process level. If a traction substation is newly built or reconstructed and is installed and configured according to the combination unit and the intelligent terminal in situ or in an intelligent integrated mode, the traction substation is installed and configured according to a conventional interval division mode, the transformer protection adopts the combination unit and an intelligent terminal independent device, the combination unit and the intelligent terminal are both installed close to a circuit breaker, and a protection device is installed in a main control room in a centralized screen assembly mode; feeder protection has adopted to close integrative device of intelligence, closes integrative device of intelligence and protection device and all installs in 27.5kV cubical switchboard.

Because of differences between functions and configuration planning of each traction substation, especially when a conventional station is subjected to digital transformation, the prior art scheme replaces the original protection device and needs to add functional modules such as a merging unit and an intelligent terminal, but the layout space of the disc cabinet is designed according to the original conventional station, so that the space of the prior art scheme is insufficient, and the requirements of current users cannot be met.

Disclosure of Invention

In view of this, the utility model provides a be used for novel relay protection device of digital traction substation to have the difference nature when solving the unable each traction substation function of the adaptation of the novel relay protection device of transformer substation and configuration planning, lead to the problem that newly-increased function module available space is not enough.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a be used for novel relay protection device of digital traction substation, includes digital protection function module, merging cells function module, intelligent terminal function module, power module, backplate and human-computer interaction HMI module, digital protection function module, merging cells function module, intelligent terminal function module, human-computer interaction HMI module link to each other with the backplate for carry out data interaction between each module, power module pass through the backplate and link to each other with digital protection function module, merging cells function module, intelligent terminal function module and human-computer interaction HMI module respectively, digital protection function module, merging cells function module, intelligent terminal function module share CPU module and GOOSE/SV module, CPU module and GOOSE/SV module all are connected with the backplate.

Furthermore, the digital protection function module further comprises a remote signaling module, an outlet module and an alternating current analog quantity acquisition module, and the remote signaling module, the outlet module and the alternating current analog quantity acquisition module are all connected with the back plate through connectors.

Furthermore, the remote signaling module comprises one or more switching value acquisition modules, the remote signaling module is used for acquiring and transmitting various protection and switching value information, and the switching value acquisition module is connected with the back plate.

Furthermore, the alternating current analog quantity acquisition module comprises a micro voltage transformer or a micro current transformer, and a TVS protection device is arranged on the alternating current analog quantity acquisition module.

Further, the outlet module is a protection action execution module consisting of 1 or more relays, and the outlet module is configured as a transformer body outlet plug-in or a feeder outlet plug-in according to a digital protection function.

Furthermore, the CPU module comprises a CPU, an FPGA, an NVRAM, an EEPROM, an RS232 interface, a first Ethernet RJ45 interface, a second Ethernet RJ45 interface, a PHY, a FLASH, a DDR3, a PCIe bus, an AD, data, an address, a control bus and an interrupt interface, the FPGA, the NVRAM, the EEPROM, the RS232 interface, the PHY, the FLASH, the DDR3, the PCIe bus, the AD, the data bus, the address bus, the control bus and the interrupt interface are all connected with the CPU, the first Ethernet RJ45 interface and the second Ethernet RJ45 interface are all connected with the PHY, the first Ethernet RJ45 interface and the second Ethernet RJ45 interface are connected with the MMS station control network, the RS232 interface is used for maintaining and debugging the relay protection device and is connected with the PCIe MAC in the CPU, the PCIe bus is communicated with other modules through a backboard, the PCIe bus comprises 1 or multiple paths, the AD is connected with the backboard, and the data bus, the address bus and the PHY 232 interface are connected with the other modules, The control bus is connected with the back plate through a connector, and the FPGA is matched with the CPU.

Furthermore, the GOOSE/SV module comprises an FPGA, an FRAM, a PCIe bus, an AD, an optical PHY, and an SFP, the FRAM, the PCIe bus, the AD, and the optical PHY are respectively connected to the FPGA, the PCIe bus is connected to the backplane through a connector, the PCIe bus is in networking communication with the CPU module through the backplane, the optical PHY has multiple paths, each path of optical PHY is connected to two paths of SPFs, and the GOOSE/SV module is connected to the GOOSE/SV network through an SPF.

Further, the power supply module comprises a multi-voltage-level AC/DC input interface and a DC5V output interface, wherein the multi-voltage-level AC voltage input range is 85V to 265V, and the DC voltage input range is 88V to 370V.

Further, the DC functional interface also comprises 60V and 24V input interfaces.

Furthermore, the human-computer interaction HMI module is connected with the back plate through a 422 bus and used for displaying, setting a fixed value and switching on and off a protection function.

Compared with the prior art, the utility model discloses following advantage has:

(1) the novel relay protection device for the digital traction substation integrates the merging unit, the intelligent terminal and the digital protection into a whole, shares the CPU module and the GOOSE/SV module to form a device, reduces the cost for newly building or transforming old stations, has good economical efficiency, short transformation period and small engineering quantity, reduces the difficulty of layout and wiring in the traction substation, ensures that the occupied area of secondary equipment is smaller, saves space, and simultaneously reduces energy consumption

(2) The novel digital protection function module has SV input/output and GOOSE receiving/transmitting functions, is connected with a mutual inductor and switch equipment in a cable mode, can complete sampling and switch control, and realizes interlocking and linkage with other interval equipment, so that the mode reduces links of protection actions, and the reliability and the quick action of protection are improved.

(3) The EHTA or EHTB can be connected to an MMS station control network, so that good interoperability and system integration can be realized among equipment, the PHY is used for realizing an OSI model physical layer and receiving and sending data frames of Ethernet, the AD has an analog quantity acquisition function, alternating current analog quantity data is obtained from an alternating current analog quantity acquisition module and then converted into digital quantity for calculation, analysis and the like of a relay protection function, and the data, the address, a control bus, interruption and the like are respectively connected to a backboard through connectors and can be used for expanding peripheral equipment, data interaction, communication and control.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is the embodiment of the utility model provides a be used for novel relay protection device of digital traction substation block schematic block diagram.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer" indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" 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" or "second" 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.

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 present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, a novel relay protection device for a digital traction substation comprises a digital protection function module, a merging unit function module, an intelligent terminal function module, a power supply module, a back plate and a human-computer interaction HMI module, wherein the digital protection function module is connected with the merging unit function module, the intelligent terminal function module and the human-computer interaction HMI module through the back plate, the power supply module is respectively connected with the digital protection function module, the merging unit function module, the intelligent terminal function module and the human-computer interaction HMI module through the back plate, the digital protection function module, the merging unit function module and the intelligent terminal function module share a CPU module and a GOOSE/SV module, and the CPU module and the GOOSE/SV module are connected with the back plate.

As shown in fig. 1, the digital protection function module includes a remote signaling module, an outlet module, a CPU module, a GOOSE/SV module, an ac analog acquisition module, etc., which are connected to a backplane through high-speed or conventional connectors, respectively, to implement information interaction, control, data sharing, relay protection functions, etc.

The remote signaling module is provided with a 1-path or multi-path switching value acquisition module and can acquire and transmit various protection and switching value information, wherein the switching value information comprises the on/off state of a circuit breaker or an isolating switch or the action/resetting state of a protection signal and the like.

As shown in fig. 1, the outlet module is a protection action execution module composed of 1 or more relays, and is connected to a circuit breaker or the like through a cable to realize a corresponding protection function, and the outlet module can be configured as a transformer body outlet plug-in or a feeder outlet plug-in or the like according to a digital protection function.

As shown in fig. 1, the CPU module includes a CPU, an FPGA, an NVRAM, an EEPROM, an RS232 interface, a first ethernet RJ45 interface ETHA, a first ethernet RJ45 interface ETHB, a PHY, a FLASH, a DDR3, a PCIe bus, an AD, data, an address, a control bus, an interrupt interface, etc., the FPGA, the NVRAM, the EEPROM, the RS232 interface, the PHY, the FLASH, the DDR3, the PCIe bus, the AD, the data, the address, the control bus, the interrupt interface, etc., are respectively connected to the CPU, the EHTA and the ETHB are respectively connected to the PHY, the EHTA or the EHTB is connected to the MMS station control network, so that good interoperability and system integration can be achieved among devices, the RS232 interface is used for maintenance and debugging of the relay protection device, the PHY is used for implementing an OSI model physical layer, and receiving and transmitting ethernet data frames, which are connected to a MAC inside the CPU, the PCIe bus is connected to a backplane through a high-speed connector, and communicates with other modules, the system can be set to be 1 or multiple PCIe communication buses, the AD has an analog quantity acquisition function and is connected to the backboard, alternating analog quantity data are acquired from the alternating analog quantity acquisition module and then converted into digital quantity for calculation, analysis and the like of a relay protection function, the data, the address, the control bus, the interrupt and the like are respectively connected to the backboard through the connector and can be used for expanding peripheral equipment, data interaction, communication, control and the like, and the FPGA is matched with the CPU for use to realize the functions of decoding, logic control, high-speed sampling, outlet, remote signaling, communication, expansion and the like. The CPU is electrically powered by, but not limited to, 6500V2CPU 2.

The CPU is a low-power-consumption processor with a trusted architecture, adopts a 45-nanometer low-power-consumption technology, has the operating frequency as high as 1000MHz and the power consumption as low as 1.1W, has strong integration capability and is provided with abundant interfaces.

As shown in FIG. 1, the GOOSE/SV module comprises FPGA, FRAM, PCIe bus, AD, N-way optical PHY and 2N-way SFP, etc., the FRAM, the PCIe bus, the AD and the N optical PHYs are respectively connected with the FPGA, the FRAM is a ferroelectric random access memory with the characteristics of high speed, durability, low power consumption and the like, used for storing information and data generated by the GOOSE/SV module during the interaction process, the PCIe bus is connected to the backplane through the high-speed connector, the AD is used for collecting the AC analog data, the SPF two groups are respectively connected with the optical PHY, the theoretical quantity of the SPF is 2 times of that of the optical PHY, the GOOSE/SV module can be connected to a GOOSE/SV network through the SPF to realize the functions of receiving and sending SV data and GOOSE commands so as to realize interlocking and linkage with other spacer equipment. The GOOSE/SV module uses but is not limited to 65V3-GOOSE-SV integer-4S 4G.

The alternating current analog quantity acquisition module comprises a micro voltage transformer or a micro current transformer, TVS and other protective devices.

The power supply module has the functions of multi-voltage-level AC/DC input and DC5V output, wherein the multi-voltage-level AC/DC input comprises AC85V to AC265V, or DC88V to 370V, or 60V, or 24V and the like.

As shown in fig. 1, the digital protection function module, the merging unit function module, the intelligent terminal function module multiplex CPU module and GOOSE/SV module, the intelligent terminal function module includes a remote signaling module, an exit module, a CPU module and a GOOSE/SV module, and the merging unit module includes a CPU module, a GOOSE/SV module and an ac analog module.

The human-computer interaction HMI module is connected with the back plate through a 422 bus and can be used for displaying, setting a fixed value, switching on and off a protection function and the like, and the human-computer interaction HMI module uses a capacitive touch screen.

The novel relay protection device for the digital traction substation integrates a merging unit, an intelligent terminal and digital protection, forms a device, reduces the cost for newly building or transforming old stations, is good in economy, short in transformation period and small in engineering quantity, reduces the difficulty of layout and wiring in the traction substation, reduces the occupied area of secondary equipment, saves space, and reduces energy consumption.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a be used for novel relay protection device of digital traction substation which characterized in that: the intelligent terminal comprises a digital protection function module, a merging unit function module, an intelligent terminal function module, a power supply module, a back plate and a human-computer interaction HMI module, wherein the digital protection function module, the merging unit function module, the intelligent terminal function module and the human-computer interaction HMI module are connected with the back plate and used for data interaction among modules, the power supply module is respectively connected with the digital protection function module, the merging unit function module, the intelligent terminal function module and the human-computer interaction HMI module through the back plate, the digital protection function module, the merging unit function module and the intelligent terminal function module share a CPU module and a GOOSE/SV module, and the CPU module and the GOOSE/SV module are connected with the back plate.

2. The novel relay protection device for the digital traction substation according to claim 1, is characterized in that: the digital protection function module further comprises a remote signaling module, an outlet module and an alternating current analog quantity acquisition module, and the remote signaling module, the outlet module and the alternating current analog quantity acquisition module are connected with the back plate through connectors.

3. The novel relay protection device for the digital traction substation according to claim 2, is characterized in that: the remote signaling module comprises one or more switching value acquisition modules, the remote signaling module is used for acquiring and transmitting various protection and switching value information, and the switching value acquisition module is connected with the back plate.

4. The novel relay protection device for the digital traction substation according to claim 2, is characterized in that: the alternating current analog quantity acquisition module comprises a micro voltage transformer or a micro current transformer, and a TVS protection device is arranged on the alternating current analog quantity acquisition module.

5. The novel relay protection device for the digital traction substation according to claim 2, is characterized in that: the outlet module is a protection action execution module consisting of one or more relays, and is configured into a transformer body outlet plug-in or a feeder outlet plug-in according to a digital protection function.

6. The novel relay protection device for the digital traction substation according to claim 5, is characterized in that: the CPU module comprises a CPU, an FPGA, an NVRAM, an EEPROM, an RS232 interface, a first Ethernet RJ45 interface, a second Ethernet RJ45 interface, a PHY, a FLASH, a DDR3, a PCIe bus, an AD, data, an address, a control bus and an interrupt interface, the FPGA, the NVRAM, the EEPROM, the RS232 interface, the PHY, the FLASH, the DDR3, the PCIe bus, the AD, a data bus, the address bus, the control bus and the interrupt interface are all connected with the CPU, the first Ethernet RJ45 interface and the second Ethernet RJ45 interface are all connected with the PHY, the first Ethernet RJ45 interface and the second Ethernet RJ45 interface are connected with a station control network, the RS232 interface is used for connecting the maintenance and debugging PHY of the relay protection device with the MAC in the CPU, the PCIe bus is communicated with other modules through a backboard through a connector, the bus comprises 1 path or a plurality of paths, the AD is connected with the backboard, the data bus, the address bus, the control bus and the backboard are respectively connected with the MMS 45, the FPGA is matched with the CPU.

7. The novel relay protection device for the digital traction substation according to claim 2, is characterized in that: the GOOSE/SV module comprises an FPGA, an FRAM, a PCIe bus, an AD, an optical PHY and an SFP, the FRAM, the PCIe bus, the AD and the optical PHY are respectively connected with the FPGA, the PCIe bus is connected with a back plate through a connector, the PCIe bus is in networking communication with the CPU module through the back plate, the optical PHY has multiple paths, each path of optical PHY is connected with two paths of SPFs, and the GOOSE/SV module is connected with a GOOSE/SV network through the SPFs.

8. The novel relay protection device for the digital traction substation according to claim 1, is characterized in that: the power supply module comprises a multi-voltage-level AC/DC input interface and a DC5V output interface, wherein the multi-voltage-level AC voltage input range is 85V to 265V, and the DC voltage input range is 88V to 370V.

9. The novel relay protection device for the digital traction substation according to claim 8, is characterized in that: the DC functional interface also includes a 60V, 24V input interface.

10. The novel relay protection device for the digital traction substation according to claim 1, is characterized in that: the human-computer interaction HMI module is connected with the back plate through a 422 bus and used for displaying, setting a fixed value and switching on and off a protection function.