kv區(qū)域性降壓變電所一次系統(tǒng)設(shè)計(jì)外文翻譯

1、110 kV substations digital transformation case analysisAbstract This paper briefly introduces the basic concept of digital substation, Analysised substation digitization reconstruction examples based on 110 kV substationsA. detailed analysised of the substation secondary equipmentsuch as changes in

2、operating mode.Digital Substation discussed possible options for reform, and according to the results of the operation of digital substation work out countermeasures and Recommended.Key words digital substation 。 automation。 Electronic TransformerWith automation and computer network traffic monitori

3、ng and protection technology, the rapid development in Past two decadeshas made substantial progress has been achieved for the digital substation automation system . Network laid the technical foundation for fulfilling the other hand, with the special high-voltage large-capacity .The gradual formati

4、on of large scale grid, the grid stable and reliable control of the safety information exchange ， And put forward higher requirements of the urgent. Digital Substation substation construction will be Trends .1. the characteristics of digital substationThe basic features of digital substation can be

5、summarized as: intelligent primary equipment, secondary equipment network, automated operation and management system. Since the station relative to conventional integrated, digital substation equipment, the protective principle, the internal algorithm, logic has not fundamentally changed, but in sam

6、pling digital, networked communication medium, communication interface standardization brought changes to improve the reliability of substation automation system. Reliability of information transmission can be achieved。 secondary wiring is simple。 measurement accuracy。 share unified information plat

7、form, reduce duplication of equipment 。 easy functionality expansion。 management automation.2. 110 kV Substation rehabilitation programs1 a part of. 110kV single busbar sub-main wiring methods, 110kV line 3 times, with a standby power source。 the main volume into 2 sets of 3 variables 。 35kV main co

8、nnection method for the Single Bus, 35kV line 5 back。 10kV main connection is a single busbar way, 2 sets of capacitors, 10kV line 18 back, 2 sets of ground change, the replacement of transformers for the electronic, installation of PT parallel combiner。 replacement in situ terminal box, installatio

9、n switches intelligent unit, to achieve local control switch 。 configuration integrated digital protection monitoring devices and digital power meter, equipped with digital standby power source device, care monitoring devices and focus group screen interval of combiner.2 station control layer. Stati

10、on control layer consists of a units monitoring host, 2 Machines GPS communications management component to form the station control level star network, monitoring the host machine automatically selects the host communication management, communication management unit and the interval as an independe

11、nt link layer device, and the bay level devices communication, access to remote, telemetry data, only the host with the remote authority, communication management unit interval of five anti-blocking cross-sequence and function of small1 / 8current grounding line, for the interval layer and process l

12、ayer device when the hard right.3 spacer. Interval layer is the core of the station automation, communications related to the implementation of the process level GOOSE 35kV, 10kV lines, capacitors, ground change, sub-protective and monitoring local installation 。 110kV Main Transformer Protection an

13、d Control focus group back screen, installed in the control Room, located optical interface screen, providing the distance to the control room of the optical conversion interface。 three sides of the main transformer backup protection one, 110kV segmentation and one prepared from the cast。 monitoring

14、 interface communication, lockout protection association。 private GOOSE network to achieve important, the key trip control, station control layer GOOSE network, to achieve control of auxiliary tripping minor, such as the low cycle load shedding.4 the process level. Parallel combination provides volt

15、age voltage, the output interval of combiner to provide the voltage signal。 the main transformer and back of each side of the differential transformer is divided into, setting separate combiner, combiner transformer transformer protection group in the main screen。 110kV line segment combiner configu

16、red individually, group within the control room screen line combiner。 35kV 10kV PT 1 set of each combiner configured to achieve PT parallel functions。 arranged in the sub-cabinet。 35kV 10kV part of the access by small-signal combiner, arranged in switch cabinet.5 communication network. a. station co

17、ntrol station control interlayer layer network layer network: set a switch, the Internet communications management unit monitoring host dual GPS。 interval layer network: at 10kV I Section II Section were placed on a switch, 35kV put a switch in paragraph , the main cabinet to set up a communications

18、 switch, focus group screen spacer device to the communications network of the main cabinet b. the process level, GOOSE private network. Process layer network: electronic transformer CT interval of combiner access, electronic access to the voltage transformer PT merger, voltage output access interva

19、l of combiner combiner 。 GOOSE Network: ring network composed of 1 # Main Variable interval Protection and Control and smart cell group into a RSG2100, 2 # Main Transformer Protection and Control and intelligence unit interval group into another RSG2100, 110kV line interval of Protection and Control

20、 and intelligence unit set into another RSG2100, composed of a single inter-switch interconnect ring.6 After the transformation of the substation has the advantage. a. back-office system integration, are in compliance with requirements of the secondary consolidation。 b. with 61850 protocol, consiste

21、ncy, and simple interface without a lot of signal cable installation and commissioning work is small, can reduce the cost of maintenance and renovation。 c. use of electronic CT / PT, non-core, eliminating the magnetic saturation。 to avoid the CT open circuit, earth fault in the secondary circuit pro

22、blems。 d. long-distance transmission of digital signals using optical fiber, anti-interference ability, reducing the transmission error。 of nearly still use the hard-wiring from the transmission, reducing the number of devices to simplify structure.substations protection equipment remote monitoring

23、and management systems analysis and design2 / 81 substation protection equipment remote monitoring and management system The system for power companies to protect managements application requirements designed to protect the department aims to provide a management and maintenance of station equipment

24、 platform, the system should meet the following features: timely, accurate collection of station equipment, real-time information。 accurate monitoring of all setting relay station changes, and timely warning。 comprehensive management of all the relay stations recorded data。 provides engineers easy a

25、ccess to any virtual channels to all relay stations。 provide a friendly user interface for maintenance and management。 Accurate and fast data retrieval and query。 high level of security, strict management of operating authority and provides audit function。 system has a high scalability, maintainabil

26、ity 。 system is stable, safe and reliable。 good man-machine interface According to the actual needs of the application of the hierarchical principle and open systems, the whole system is divided into enterprise application layer, service layer, station control management and equipment level.Station

27、control stations relay data subsystem is responsible for the collection, processing, valuation and management functions include the following modules: RTDB: RealTime Database, real-time data management, systems management as the core of the system responsible for managing all of the real time data,

28、events, police records。 HMI: HumanMachine Interface, local display and control management。 DCAl03: DataCollectionApplicationwithIECl03, IECl03 communications processing, complete with support IECl03 relay communications between the Statute, to collect real-time data sent to relay real-time database。

29、 as Support 103 for the relay setting and recorded data, the corresponding value for management。 Courier: CourierDCA communications processing, complete with relay communication between the relay real-time data collection, event data, protection setting , recorded data。 Modbus: ModbusDCA Statute of

30、the communication processing。 DNP30: DNP3.0 DCA Statute of the data processing。 GD8Calc: GD8-line basis, to provide advanced automatic calculation and automatic control functions。 VC: Virtual Connection Manager, providing a virtual channel with the server connection and, if necessary, send a request

31、 to the DCA loan communication channel。 DNPDPA: DPA (DataProces sApplication type applications, communicate with the server through DNP3.0 statute.This subsystem is responsible for the data collection points, and saved to the server SQLServer database, including the following modules: DC: DataCollec

32、tion application station control subsystem is responsible for communication and exchange through the DNP3 0 real-time data and event data, and to the real-time data。 RTDB: real-time data management, including real-time data management, and a variety of real-time data access interface (shared memory

33、TCP IP database, and save the historical database, to provide lock control。 user management: Manage user roles, password, operating privilege, etc。. role management, managerial role and define the appropriate authority。 configuration management: management station data and communication within the p

34、arameters and alarm configuration (SMS GSM EMAIL 。 graphics production system: user-defined interface production system。virtual serial port, virtual channel dynamic management。 event query Modules:3 / 8Alarm query module, the station data query module: check the communication relay stations within t

35、he state of constant change state, recorded data。 constant query module。 Virtual Connect modules。 single line diagram: a graphical user interface provides real-time data Display operation control, etc。. historical data query。 audit module。 operational records check.2 database design systemMonitoring

36、 and management system for the protection of the core is around the station designed to protect the information data, the database design directly related to the effect and operation of the whole system performance, while the database system to other computer systems, with more objects, longer survi

37、val data, with high requirements on the maintenance and security of the information related to such issues, so the database design must be carefully and cautiously database design for this system, we propose the following four basic principle to guide the design of the database :a, try to ensure the

38、 simplicity of the database, including: simple database structure, data sheets and data sheet design simple relationship between Q and other simple b, to ensure the integrity of database systems, including: the physical integrity of the database system, database, logical integrity, the integrity of

39、the elements of the database systemc, to ensure the confidentiality of the database system, including: the database system, the user identity and authority to identify, to ensure that each user and their access to the system is legitimate and can be identified in the design of the time so we can the

40、 body of the user identification and access rights to control the system provides the user can only operate within the purview and ensure the security of system datad, to ensure the availability of database systems, which ensure that the database can access system resources, easy to use and to avoid

41、 data conflicts in the data access process, to ensure no conflict between the data and contradictions in this system, the server database used relational database, and use Microsofts SQL2005Server name of the database design is MinilPACS, stored data are historical data configuration information and

42、 event information data, user information configuration data using MS Acces s database, download the station controlled by synchronizing Equipment GD8 can be converted into the CDB CE data formats, and through the papers to copy or synchronize GD84. the operation of digital substationDigital substat

43、ion system to achieve the full hierarchical distributed application。 first and second device to achieve effective electrical isolation, interoperability between devices。 information integration has increased, reduce the number of automation equipment。 station electrical quantities collected United b

44、locking signal transmission and equipment trip command to run all through the fiber optic networks。 has a higher than conventional automation system reliability, availability, security。 substation automation system is to ensure that primary and secondary equipment, the normal operation of the core,

45、daily operation and maintenance should be given more attention to the information prompted to run equipment。 concern communication device alarm interrupt event log information tips。 concerns real-time4 / 8monitoring and control console prompt warning information。 network communication interruption s

46、hould check the device prompt the switch state of communication lines。 case no display device, it should ascertain whether the loss of power outage, such as the reasons for withdrawal should be identified and then put into operation。 after power should conduct a comprehensive inspection to confirm i

47、nstallation of the normal operation after running the program is another advantage of the current digital 110kV substation south of change remote operation can be achieved has been the general order of the control and operation (programmed operation program of the operating system is pre-set through

48、 the automated process operation of the substation equipment series, issued by the operating instructions is to grant an order by the automated system based on equipment corresponding changes in the amount of remote telemetry to determine the letter of each step is in place, the case confirmation in

49、 place the next step, otherwise the alarm.Conclusion110kV substation digital transformation projects to explore the application of the old station digital transformation technology solutions, to explore the advanced practical and reliable digital substation system structure and model, reflecting the

50、 advanced technology, structure is reasonable, program innovation, practical implementation, to the role of models and model for future digital substation reconstruction provides a new and valuable experience for reference.5 / 8摘要 本文簡(jiǎn)要介紹了數(shù)字化變電站的基本概念，110 千伏數(shù)字化變電站改造的例子。詳細(xì)的分析，如改變經(jīng)營(yíng)模式的變電站二次設(shè)備。數(shù)字化變電站討論可能

51、的改革方案，并根據(jù)數(shù)字化變電站工作了對(duì)策和建議的運(yùn)行成果。關(guān)鍵詞 數(shù)字化變電站 ,自動(dòng)化，電子式互感器自動(dòng)化和計(jì)算機(jī)網(wǎng)絡(luò)流量監(jiān)控和保護(hù)技術(shù)，在過去二十年的飛速發(fā)展有了長(zhǎng)足的進(jìn)步，已實(shí)現(xiàn)數(shù)字化變電站自動(dòng)化系統(tǒng)。網(wǎng)絡(luò)奠定了技術(shù)基礎(chǔ)，另一方面，用特高電壓大容量的大型電網(wǎng)的逐步形成，電網(wǎng)穩(wěn)定和安全信息交流的可靠控制，并迫切提出更高的要求。數(shù)字化變電站的建設(shè)將成為趨勢(shì)。1。數(shù)字化變電站的特點(diǎn)數(shù)字化變電站的基本特點(diǎn)可以概括為：一次設(shè)備智能化，二次設(shè)備網(wǎng)絡(luò)化，自動(dòng)化操作和管理系統(tǒng)。由于傳統(tǒng)的變電站相對(duì)集成化，數(shù)字化變電站設(shè)備，保護(hù)原則，內(nèi)部算法，邏輯并沒有根本改變，但在采樣數(shù)字化，網(wǎng)絡(luò)通信介質(zhì)，通信接口標(biāo)準(zhǔn)

52、化帶來的變化，以提高變電站自動(dòng)化系統(tǒng)的可靠性。可以實(shí)現(xiàn)信息傳輸?shù)目煽啃?。二次接線簡(jiǎn)單，測(cè)量精度。共享統(tǒng)一的信息平臺(tái)，減少設(shè)備的重復(fù)，便于功能擴(kuò)展管理自動(dòng)化。2。110 千伏變電站自新計(jì)劃1）一次部分。110 千伏單母線分主接線方式，備用電源，110kV 線路的 3 回，到 2 套 3 個(gè)變量的主音量。 35kV 及以下的單母線主要連接方式， 35KV 線路 5 回， 10KV 主接線是一個(gè)單母線方式，電容器 2 套， 10kV 線路 18 回， 2 套地端子箱，更換變壓器，電子，安裝PTPT 并列合并器。更換就地接線盒，安裝開關(guān)智能單元，實(shí)現(xiàn)本地控制開關(guān)。配置集成數(shù)字保護(hù)監(jiān)控設(shè)備和數(shù)字功率計(jì)，

53、配備數(shù)字備用電源設(shè)備，保護(hù)監(jiān)控設(shè)備和焦點(diǎn)組合屏幕的電壓信號(hào)。2）站控層。站控層由一個(gè)單位的監(jiān)控主機(jī)， 2 臺(tái)的 GPS通信管理組件，形成站控制層星型網(wǎng)絡(luò)監(jiān)控主機(jī)自動(dòng)選擇主機(jī)的通信管理，通信管理單元作為一個(gè)獨(dú)立的鏈路層設(shè)備的電壓信號(hào)，間隔層設(shè)備通信，遙控，遙測(cè)數(shù)據(jù)，只有主機(jī)與遠(yuǎn)程機(jī)，通信管理五防無阻塞交叉序列和功能的小電流接地線，間隔層和過程層設(shè)備時(shí)，硬盤的對(duì)時(shí)。3）間隔層。間隔層站自動(dòng)化，GOOSE35 千伏， 10千伏線路，電容器，接地的變化，保護(hù)和監(jiān)控本地安裝進(jìn)程級(jí)的實(shí)施涉及到通信的核心。110 千伏主變壓器保護(hù)和控制的重點(diǎn)組安裝屏幕的背面，中控室，位于光纖接口屏幕，提供光轉(zhuǎn)換接口控制室監(jiān)

54、控通信接口，閉鎖保護(hù)關(guān)聯(lián)。三個(gè)主變壓器后備保護(hù)，110KV 分割和演員都準(zhǔn)備了一份雙方的距離。民營(yíng)的 GOOSE 網(wǎng)絡(luò)，實(shí)現(xiàn)重要的，關(guān)鍵的行程控制，站控層的GOOSE 網(wǎng)絡(luò)，以實(shí)現(xiàn)控制輕微，如低的周期跌負(fù)載輔助跳閘。4）過程層。電壓合并器提供電壓并列功能，提供的電壓信號(hào)合成器輸出的電壓信號(hào)。主變壓器差動(dòng)變壓器兩側(cè)分為，設(shè)置單獨(dú)的合并，合并器變壓器保護(hù)組在主屏幕。110kV 線路段合并單獨(dú)配置，在控制室的屏幕行合組35KV10kV 的 PT1 套每個(gè)合成器配置為實(shí)現(xiàn)PT 并行功能。次內(nèi)閣中安排。35 千伏 10KV 部分由小信號(hào)合成的訪問，安排在開關(guān)內(nèi)閣。4）水平的過程。并聯(lián)組合提供的電壓下，提

55、供的電壓信號(hào)合成器輸出的電壓信號(hào)。主變壓器差動(dòng)變壓器兩側(cè)分為，設(shè)置單獨(dú)的合并，合并器變壓器保護(hù)組在主屏幕。110kV線路段合并單獨(dú)配置，在控制室的屏幕行合組35KV10kV 的 PT1 套每個(gè)合成器配置為實(shí)現(xiàn)PT 并行功能。次內(nèi)閣中安排。 35 千伏 10KV 部分由小信號(hào)合成的訪問，安排在開關(guān)柜內(nèi)。5）通訊網(wǎng)絡(luò)。 A. 站控層間隔層網(wǎng)絡(luò)：設(shè)置一個(gè)開關(guān)，互聯(lián)網(wǎng)通信管理單元監(jiān)控主機(jī)雙GPS。間隔層網(wǎng)絡(luò)：分別在10kVI 段 II 段分別放置一臺(tái)交換機(jī)，35KV 開關(guān)段中，主要柜設(shè)立一個(gè)通信交換機(jī)，集中組屏間隔設(shè)備的通信網(wǎng)絡(luò)的主要柜。B。工藝水平，鵝專用網(wǎng)絡(luò)。6 / 8過程層網(wǎng)絡(luò)：電子式互感器CT

56、 合成器接入?yún)^(qū)間，電子電壓互感器PT 合并，輸出電壓合成器合成的訪問間隔的GOOSE 網(wǎng)絡(luò)： 1主變間隔保護(hù)和控制，成為一個(gè)智能電池組組成的環(huán)網(wǎng) 2 RSG2100，主變壓器保護(hù)到另一個(gè)RSG2100的控制和情報(bào)單位間隔組，110KV 保護(hù)和控制線和情報(bào)單位間隔設(shè)置成另一個(gè)RSG2100組成一個(gè)單一的交換機(jī)間的互連環(huán)。6）具有優(yōu)點(diǎn)，改造后的變電站。a。后臺(tái)系統(tǒng)集成，符合的次固結(jié)的要求。b。采用 61850規(guī)約保持一致，接口簡(jiǎn)單，沒有很多信號(hào)電纜安裝和調(diào)試工作是小，可減少維修及翻新成本。使用電子的 CT / PT，非核心，消除了磁飽和。避免的 CT 開路，在二次回路接地故障問題。長(zhǎng)途傳輸數(shù)字信號(hào)采用光纖，抗干擾能力強(qiáng)，降低了傳輸錯(cuò)誤。幾乎仍使用從硬布線的傳輸，減少設(shè)備數(shù)量，簡(jiǎn)化結(jié)構(gòu)。3、變電站保護(hù)設(shè)備的遠(yuǎn)程監(jiān)視與管理系統(tǒng)分析與設(shè)計(jì)1）變電站保護(hù)設(shè)備的遠(yuǎn)程監(jiān)控和管理系統(tǒng)在電力公司系統(tǒng)保護(hù)管理的應(yīng)用程序，旨在保護(hù)部門要求提供1 管理和車站設(shè)備平臺(tái)的維護(hù)，系統(tǒng)應(yīng)該滿足了以下功能：及時(shí)，準(zhǔn)確收