CN113242055B - Wireless communication device suitable for line differential protection - Google Patents
Wireless communication device suitable for line differential protection Download PDFInfo
- Publication number
- CN113242055B CN113242055B CN202110609587.6A CN202110609587A CN113242055B CN 113242055 B CN113242055 B CN 113242055B CN 202110609587 A CN202110609587 A CN 202110609587A CN 113242055 B CN113242055 B CN 113242055B
- Authority
- CN
- China
- Prior art keywords
- wireless communication
- module
- protection
- power
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the technical field of relay protection of power systems, and particularly discloses a wireless communication device suitable for line differential protection, which comprises: the first wireless communication device and the second wireless communication device comprise a protection CPU, and the first wireless communication device and the second wireless communication device comprise a baseband module, a modem, a radio frequency transmitting/receiving module and an antenna module which are connected with the protection CPU, wherein the baseband module, the modem, the radio frequency transmitting/receiving module and the antenna module are sequentially connected; the invention can monitor communication performance and data time delay in real time to ensure safe and stable operation of the protection device, thereby improving the reliability of the protection device.
Description
Technical Field
The invention relates to the technical field of relay protection of power systems, in particular to a wireless communication device suitable for line differential protection.
Background
The most commonly used transmission medium of the current line differential protection device is a fiber channel, the fiber channel has good quality, and usually, the line protection of each line is provided with special optical fibers with the same length as the line, and the construction cost is high; in addition, although the optical fiber channel is not interfered by electromagnetic environment, the optical fiber channel is fragile and is easily damaged by foreign objects such as natural disasters, so that the data channel is invalid.
As a mobile communication system for 2020 and later, the 5G is going to be deep into various industrial fields due to its characteristics of high transmission rate and high transmission reliability, and serves as an infrastructure to provide all-round services for various fields of future society: the method can provide the access speed like an optical fiber and use experience of zero time delay, so that the information breaks through the space-time limit and is immediately presented. Relay protection is a first defense line of an electric power system, and one of the cores of line differential protection is data transmission of protection devices on two sides of a line. Therefore, the 5G technology can be considered to be applied to a power system line differential protection device, and the functions of differential and the like are realized by utilizing zero-time-delay data exchange of the two side devices.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a wireless communication device suitable for line differential protection, which is suitable for the requirements of wireless communication modes in the future 5G age, and has the advantages that the communication modes are not limited by ground space and are quick to deploy; communication performance and data time delay can be monitored in real time to ensure safe and stable operation of the protection device, so that reliability of the protection device is improved.
As a first aspect of the present invention, there is provided a wireless communication apparatus adapted for line differential protection, comprising: the first line protection device is connected with the first wireless communication component through a communication bus, the first wireless communication component is connected with the second wireless communication component through a wireless network, the second wireless communication component is connected with the second line protection device through a communication bus,
The first line protection device comprises a first protection CPU, the first wireless communication assembly comprises a first baseband module, a first modem, a first radio frequency transmitting/receiving module and a first antenna module, the second line protection device comprises a second protection CPU, the second wireless communication assembly comprises a second baseband module, a second modem, a second radio frequency transmitting/receiving module and a second antenna module, the first baseband module is connected with the first protection CPU through a communication bus, the first baseband module, the first modem, the first radio frequency transmitting/receiving module and the first antenna module are sequentially connected, the second baseband module is connected with the second protection CPU through the communication bus, the second baseband module, the second modem, the second radio frequency transmitting/receiving module and the second antenna module are sequentially connected, and the first antenna module is connected with the second antenna module through a wireless network.
Further, the first wireless communication module further comprises a first power interface, a power bus is arranged on the first line protection device, the first power interface is connected with the power bus, and the first power interface is used for acquiring power from the power bus to supply power for the first wireless communication module.
Further, the second wireless communication module further comprises a second power interface, a power bus is arranged on the second line protection device, the second power interface is connected with the power bus, and the second power interface is used for acquiring power from the power bus to supply power for the second wireless communication module.
Further, the first baseband module and the second baseband module each include a baseband chip.
Further, the first and second rf transmit/receive modules each include a mixer, a band pass filter, a power amplifier, a low noise amplifier, and a transceiver.
Further, the first antenna module and the second antenna module each include an antenna and an antenna driving module connected to the antenna.
The wireless communication device suitable for line differential protection has the following advantages: (1) The method is suitable for the requirements of wireless communication modes in the future 5G era, and has the advantages that the communication modes are not limited by ground space and are quick to deploy; (2) In consideration of the safety and stability of the power system, identity identification and verification are needed in the connection process, and communication performance and data time delay are monitored in real time so as to ensure safe and stable operation of the protection device and improve the reliability of the protection device.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention.
Fig. 1 is a schematic structural diagram of a wireless communication device suitable for line differential protection according to the present invention.
Detailed Description
In order to further describe the technical means and effects adopted for achieving the preset purpose of the present invention, the following detailed description refers to the specific implementation, structure, characteristics and effects of the wireless communication device for line differential protection according to the present invention with reference to the accompanying drawings and preferred embodiments. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the explanation of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise indicated. For example, the connection may be a fixed connection, or may be a connection through a special interface, or may be an indirect connection via an intermediary. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In this embodiment, a wireless communication device suitable for line differential protection is provided, and fig. 1 is a schematic structural diagram of the wireless communication device suitable for line differential protection provided in the present invention, as shown in fig. 1, where the wireless communication device suitable for line differential protection includes: the first line protection device is connected with the first wireless communication component through a communication bus, the first wireless communication component is connected with the second wireless communication component through a wireless network, the second wireless communication component is connected with the second line protection device through a communication bus,
The first line protection device comprises a first protection CPU, the first wireless communication assembly comprises a first baseband module, a first modem, a first radio frequency transmitting/receiving module and a first antenna module, the second line protection device comprises a second protection CPU, the second wireless communication assembly comprises a second baseband module, a second modem, a second radio frequency transmitting/receiving module and a second antenna module, the first baseband module is connected with the first protection CPU through a communication bus, the first baseband module, the first modem, the first radio frequency transmitting/receiving module and the first antenna module are sequentially connected, the second baseband module is connected with the second protection CPU through the communication bus, the second baseband module, the second modem, the second radio frequency transmitting/receiving module and the second antenna module are sequentially connected, and the first antenna module is connected with the second antenna module through a wireless network.
The wireless communication module is used as one of pluggable modules of the line protection device and is inserted on a motherboard module of the line protection device to realize the wireless communication function of the line protection device.
Preferably, the first wireless communication module further includes a first power interface, a power bus is disposed on the first line protection device, the first power interface is connected with the power bus, and the first power interface is used for obtaining power from the power bus and is connected with other modules (a first baseband module, a first modem, a first radio frequency transmitting/receiving module, a first antenna module) for supplying power to the first wireless communication module.
Preferably, the second wireless communication module further includes a second power interface, a power bus is disposed on the second line protection device, the second power interface is connected to the power bus, and the second power interface is used for obtaining power from the power bus and connected to other modules (a second baseband module, a second modem, a second radio frequency transmitting/receiving module, and a second antenna module) for supplying power to the second wireless communication module.
Preferably, the first baseband module and the second baseband module each include baseband chips to implement data processing such as compression/decompression, channel encoding/decoding, interleaving/de-interleaving, encryption/decryption, formatting/de-formatting, multiplexing/de-multiplexing, and the like for analog and switching value data for protection.
Preferably, the first antenna module and the second antenna module each include an antenna and an antenna driving module connected to the antenna, where the antenna is used for receiving or transmitting wireless signals, and supporting receiving 5G network time pairs for protecting time pairs and differential synchronization functions of the device.
It should be noted that, when the first line protection device is a line protection device of the signal transmitting end, the second line protection device is a line protection device of the signal receiving end; on the contrary, when the second line protection device is the line protection device of the signal transmitting end, the first line protection device is the line protection device of the signal receiving end.
Specifically, when the first line protection device is a line protection device of a signal transmitting end and the second line protection device is a line protection device of a signal receiving end, the working principle of the wireless communication device suitable for line differential protection provided by the invention is as follows: the first protection CPU sends analog quantity and switching value data for protection to the first baseband module, the first baseband module processes the analog quantity and switching value data for protection, the processed digital signal is sent to the first modem, the first modem converts the processed digital signal into a high-frequency electromagnetic wave signal, the high-frequency electromagnetic wave signal is sent to the first antenna module through the first radio frequency transmitting/receiving module, the first antenna module sends the high-frequency electromagnetic wave signal to the second antenna module through the wireless network, the second antenna module sends the high-frequency electromagnetic wave signal to the second modem through the second radio frequency transmitting/receiving module, the second modem demodulates the high-frequency electromagnetic wave signal into a digital signal, the digital signal is sent to the second baseband module for digital signal processing, and the second baseband module sends the processed digital signal to the second protection CPU.
Specifically, when the second line protection device is a line protection device of the signal transmitting end and the first line protection device is a line protection device of the signal receiving end, the working principle of the wireless communication device suitable for line differential protection provided by the invention is as follows: the second protection CPU sends the analog quantity and the switching value data for protection to the second baseband module, the second baseband module processes the analog quantity and the switching value data for protection, the processed digital signal is sent to the second modem, the second modem converts the processed digital signal into a high-frequency electromagnetic wave signal, the high-frequency electromagnetic wave signal is sent to the second antenna module through the second radio frequency transmitting/receiving module, the second antenna module sends the high-frequency electromagnetic wave signal to the first antenna module through the wireless network, the first antenna module sends the high-frequency electromagnetic wave signal to the first modem through the first radio frequency transmitting/receiving module, the first modem demodulates the high-frequency electromagnetic wave signal into a digital signal and then sends the digital signal to the first baseband module for digital signal processing, and the first baseband module sends the processed digital signal to the first protection CPU.
It should be noted that, the first rf transmitting/receiving module and the second rf transmitting/receiving module each include a mixer, a band-pass filter, a power amplifier, a low noise amplifier, and a transceiver; when transmitting signals, the high-frequency electromagnetic wave signals converted by the modem are converted into required frequencies by the mixer, the high-frequency electromagnetic wave signals in a specific frequency range (frequency band) are obtained by the band-pass filter, the signals are enhanced by the power amplifier, and finally the signals are transmitted to the antenna output by the transmission receiver; when receiving signals, the high-frequency electromagnetic wave signals transmitted by the antenna are received by the transmitting receiver, then the high-frequency electromagnetic wave signals in a specific frequency range (frequency band) are obtained by the band-pass filter, the weak signals are amplified by the low noise amplifier, converted into required frequencies by the mixer, and finally the required frequencies are transmitted to the modem to be converted into digital signals.
In addition, when the first line protection device and the second line protection device are in wireless connection, in consideration of safety and stability of the power system, identity identification and verification are required in the connection process, communication performance and data time delay are monitored in real time, so that safe and stable operation of the protection device is ensured, and reliability of the protection device is improved, and the method specifically comprises the following steps:
Step one: the line protection device can select a conventional optical fiber interconnection mode and a wireless interconnection mode, when the device operates in the wireless interconnection mode, the line protection device at the transmitting end transmits a connection signal with the line protection device at the receiving end to the base station, and the line protection device at the receiving end receives the connection signal transmitted by the base station;
Step two: when the connection is successful, the line protection devices on the two sides mutually send device identification information firstly, and if the connection is unsuccessful, the first step is returned;
Step three: if the identification information is not matched with the device, alarming and giving prompt information; if the identification information is detected to be matched with the device, the matching is successful, the data interaction such as analog quantity, switching value and the like required by the line protection device is carried out after the matching, the running state of wireless communication is monitored in real time in the running process of the line protection device, whether the communication performance and delay of the wireless network meet the protection requirements is detected, if the communication performance and delay meet the requirements is detected, the normal running of the device is indicated, and when the communication performance is abnormal or the delay is abnormal, the warning is given and prompt information is given;
the method comprises the steps that in the process of establishing wireless connection, identification information of a local device and a contralateral device is needed to be paired, and the identification information of the paired devices comprises identification information such as device model, version information, channel identification code and the like, so that the situation that the operation of a protection device is influenced by the establishment of error connection is avoided;
Wherein, the wireless network communication performance abnormality includes the following cases: high channel error rate, channel out-of-step, excessively long channel delay, channel interruption, serious frame loss, and the like.
The wireless communication device suitable for the circuit differential protection provided by the invention takes the receiving and transmitting of analog quantity and switching value information at two sides of a circuit as a core function, so that the protection devices at two sides of the circuit can perform data interaction in real time, and further the circuit differential protection function is completed.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (4)
1. A wireless communication device adapted for differential protection of a line, comprising: the first line protection device is connected with the first wireless communication component through a communication bus, the first wireless communication component is connected with the second wireless communication component through a wireless network, the second wireless communication component is connected with the second line protection device through a communication bus,
The first line protection device comprises a first protection CPU, the first wireless communication assembly comprises a first baseband module, a first modem, a first radio frequency transmitting/receiving module and a first antenna module, the second line protection device comprises a second protection CPU, the second wireless communication assembly comprises a second baseband module, a second modem, a second radio frequency transmitting/receiving module and a second antenna module, the first baseband module is connected with the first protection CPU through the communication bus, the first baseband module, the first modem, the first radio frequency transmitting/receiving module and the first antenna module are sequentially connected, the second baseband module is connected with the second protection CPU through the communication bus, the second baseband module, the second modem, the second radio frequency transmitting/receiving module and the second antenna module are sequentially connected, and the first antenna module is connected with the second antenna module through the wireless network;
The first wireless communication assembly further comprises a first power interface, a power bus is arranged on the first line protection device, the first power interface is connected with the power bus, and the first power interface is used for acquiring power from the power bus to supply power for the first wireless communication assembly;
The second wireless communication assembly further comprises a second power interface, a power bus is arranged on the second line protection device, the second power interface is connected with the power bus, and the second power interface is used for acquiring power from the power bus to supply power for the second wireless communication assembly.
2. The wireless communication device for line differential protection as defined in claim 1, wherein the first baseband module and the second baseband module each comprise a baseband chip.
3. The wireless communication device of claim 1, wherein the first and second rf transmit/receive modules each comprise a mixer, a bandpass filter, a power amplifier, a low noise amplifier, and a transceiver.
4. The wireless communication device adapted for line differential protection as defined in claim 1, wherein said first antenna module and said second antenna module each comprise an antenna and an antenna driving module coupled to said antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609587.6A CN113242055B (en) | 2021-06-01 | 2021-06-01 | Wireless communication device suitable for line differential protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609587.6A CN113242055B (en) | 2021-06-01 | 2021-06-01 | Wireless communication device suitable for line differential protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113242055A CN113242055A (en) | 2021-08-10 |
| CN113242055B true CN113242055B (en) | 2024-05-03 |
Family
ID=77136297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110609587.6A Active CN113242055B (en) | 2021-06-01 | 2021-06-01 | Wireless communication device suitable for line differential protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113242055B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116760430B (en) * | 2023-08-11 | 2024-01-09 | 国网信息通信产业集团有限公司 | 5G power communication terminal, method and detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848038A (en) * | 2010-04-27 | 2010-09-29 | 上海交通大学 | Wireless transmission device based on software radio filtering and method thereof |
| CN103781202A (en) * | 2014-02-26 | 2014-05-07 | 华为终端有限公司 | Multi-module wireless terminal |
| CN205377857U (en) * | 2015-12-25 | 2016-07-06 | 上海数果科技有限公司 | Digital interphone |
| CN209233816U (en) * | 2019-01-10 | 2019-08-09 | 深圳前海图米科技有限公司 | Wireless communication module |
| CN112838563A (en) * | 2020-12-31 | 2021-05-25 | 南京智汇电力技术有限公司 | Data transmission method and system suitable for 5G differential protection equipment |
| CN215010238U (en) * | 2021-06-01 | 2021-12-03 | 国网江苏省电力有限公司无锡供电分公司 | Wireless communication device suitable for differential protection of circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9065541B2 (en) * | 2013-09-10 | 2015-06-23 | Broadcom Corporation | Configurable wireless communication device with configurable front-end |
-
2021
- 2021-06-01 CN CN202110609587.6A patent/CN113242055B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848038A (en) * | 2010-04-27 | 2010-09-29 | 上海交通大学 | Wireless transmission device based on software radio filtering and method thereof |
| CN103781202A (en) * | 2014-02-26 | 2014-05-07 | 华为终端有限公司 | Multi-module wireless terminal |
| CN205377857U (en) * | 2015-12-25 | 2016-07-06 | 上海数果科技有限公司 | Digital interphone |
| CN209233816U (en) * | 2019-01-10 | 2019-08-09 | 深圳前海图米科技有限公司 | Wireless communication module |
| CN112838563A (en) * | 2020-12-31 | 2021-05-25 | 南京智汇电力技术有限公司 | Data transmission method and system suitable for 5G differential protection equipment |
| CN215010238U (en) * | 2021-06-01 | 2021-12-03 | 国网江苏省电力有限公司无锡供电分公司 | Wireless communication device suitable for differential protection of circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113242055A (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH04223246A (en) | Remote measuring system for optical fiber transmitting system | |
| CN113242055B (en) | Wireless communication device suitable for line differential protection | |
| CN103546189B (en) | Radio-frequency (RF) front-end circuit and system | |
| KR101573719B1 (en) | Apparatus and method for protecting receive circuits in tdd wireless communication system | |
| EP2475104A1 (en) | Duplexer malfunction detecting method and apparatus | |
| CN215010238U (en) | Wireless communication device suitable for differential protection of circuit | |
| US20170257157A1 (en) | Base station signal matching device and relay device including the same | |
| CN106804044A (en) | Communication fault detection method, device and remote radio circuit | |
| KR20060092766A (en) | Apparatus and method for time division duplexing(tdd) communication using polarized duplexer | |
| JP2004147191A (en) | Transmitter-receiver for high output multimode mobile communication | |
| KR20000060717A (en) | Monitor System operating RF repeater of Radio relay System | |
| CN213661619U (en) | Communication equipment for unmanned aerial vehicle | |
| CN112217583A (en) | Embedded self-checking system and method for on-orbit wireless communication equipment | |
| JP3522225B2 (en) | Radio apparatus and reception failure detection method thereof | |
| KR100638794B1 (en) | Repeater composing link by wireless | |
| CN217904667U (en) | Near field communication module applied to high-power wireless charging | |
| KR101048537B1 (en) | System and method to automatically cut off transmission power in case of reverse error of optical repeater | |
| CN216056991U (en) | Communication equipment sharing hardware channel | |
| JP2912253B2 (en) | Antenna failure detection circuit | |
| KR20040051408A (en) | Method and System for Monitering Radio Frequency Signal of Repeater in Wireless Telecommunication System | |
| CN113301529B (en) | Communication positioning integrated AeroMACS multi-mode terminal | |
| CN212381215U (en) | Detection device and detection system for repeater or base station | |
| KR102396689B1 (en) | OAM control method for optical transceiver at remote location | |
| CN208539906U (en) | A kind of light channel structure of high efficiency remote gain module | |
| JP4677252B2 (en) | Optical transmission equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |