【摘要】：伴隨智能電網(wǎng)的發(fā)展,智能變電站也在廣泛地建設(shè)和應(yīng)用。相比于傳統(tǒng)變電站,智能站中新型的二次裝置大量涌現(xiàn),信息格式數(shù)字化,通信方式網(wǎng)絡(luò)化。對(duì)于專業(yè)工程人員來說,保護(hù)的內(nèi)部原理變得不可見;過程層的智能設(shè)備合并單元、智能終端和間隔層的保護(hù)裝置、測控裝置之間的信息傳遞也變得透明;電氣量信號(hào)不再以傳統(tǒng)的電纜接線進(jìn)行傳輸,而是基于標(biāo)準(zhǔn)的數(shù)據(jù)模型和通信報(bào)文,通過"虛端子"進(jìn)行連接。如何使專業(yè)工程人員對(duì)二次系統(tǒng)的裝置和回路有深入、透徹的學(xué)習(xí)值得關(guān)注;同時(shí),國內(nèi)外對(duì)于智能變電站二次系統(tǒng)的整體仿真和測試的研究比較少,更多是基于傳統(tǒng)站的單裝置的功能測試,針對(duì)智能站二次系統(tǒng)的閉環(huán)邏輯測試不夠完善,無法滿足工程人員對(duì)專業(yè)技能的要求�；趪鴥�(nèi)智能變電站發(fā)展的趨勢和前景,針對(duì)工程人員,本文提出一種智能變電站二次系統(tǒng)虛擬仿真方法。該方法以軟件的形式仿真了智能變電站中保護(hù)裝置的內(nèi)部原理和功能,以及外特性;將保護(hù)動(dòng)作時(shí)基本動(dòng)作特性和動(dòng)作邏輯以可視化的方式展現(xiàn)出來;同時(shí)基于IEC61850標(biāo)準(zhǔn)建立保護(hù)的基本數(shù)據(jù)模型,定義其功能語義,配置虛擬保護(hù)的數(shù)據(jù)集。利用RTDS(Real Time Digital Simulator)實(shí)時(shí)數(shù)字仿真平臺(tái)搭建一次系統(tǒng)模型并進(jìn)行控制,利用模型中的GTNET_SV和GTNET_GSE模塊,實(shí)現(xiàn)智能變電站中合并單元和智能終端的搭建。基于SV采樣值技術(shù)和GOOSE通信技術(shù),分析并建立系統(tǒng)的通信方式,將RTDS信號(hào)源系統(tǒng)與虛擬保護(hù)裝置連接,通過正確的通信配置進(jìn)行閉環(huán)測試,既可以測試虛擬保護(hù)裝置的基本功能和響應(yīng)特性,了解保護(hù)內(nèi)部信號(hào)流動(dòng)和邏輯流程,還能通過系統(tǒng)中二次回路展示分析模塊以可視化方法多維度地展示二次回路的連接。該系統(tǒng)的開發(fā)和應(yīng)用對(duì)實(shí)際的工程人員具有一定的培訓(xùn)意義,使參訓(xùn)人員深入了解二次系統(tǒng)中智能裝置內(nèi)部工作原理,學(xué)習(xí)故障情況下保護(hù)內(nèi)部元件的動(dòng)作特性和邏輯元件的配合,掌握基本的保護(hù)動(dòng)作報(bào)告分析能力。通過閉環(huán)測試,掌握故障情況下二次系統(tǒng)邏輯回路的功能信號(hào)流。同時(shí)針對(duì)實(shí)際工程培訓(xùn)中,智能站中的硬件設(shè)備難以大量配置,利用軟件仿真可大量減少實(shí)際保護(hù)裝置的配備,節(jié)約投資。
[Abstract]:With the development of smart grid, intelligent substation is widely used. Compared with traditional substations, new secondary devices in intelligent stations emerge in large numbers, information formats are digitized and communication modes are networked. For professional engineers, the internal principle of protection becomes invisible, the process layer intelligent equipment merging unit, intelligent terminal and interval layer protection device, the information transmission between measurement and control devices becomes transparent. Electrical signal is no longer transmitted by traditional cable connection, but is connected by "virtual terminal" based on standard data model and communication message. How to make the professional engineers to the secondary system of the device and loop have a deep, thorough study is worth paying attention to; At the same time, domestic and foreign research on the intelligent substation secondary system simulation and testing is less, more based on the traditional station of the single device function test, the intelligence station secondary system closed-loop logic test is not perfect. Unable to meet the requirements of engineers for professional skills. Based on the development trend and prospect of intelligent substation in China, a virtual simulation method for secondary system of intelligent substation is presented in this paper. The method simulates the internal principle, function and external characteristics of the protection device in the intelligent substation in the form of software, and presents the basic action characteristics and logic of the protection in a visual way. At the same time, the basic data model of protection is established based on IEC61850 standard, its functional semantics is defined, and the data set of virtual protection is configured. Using RTDS (Real Time Digital Simulator) real-time digital simulation platform to build a system model and control, using the model of GTNET_SV and GTNET_GSE modules, to achieve the intelligent substation merging unit and intelligent terminal construction. Based on the SV sampling value technology and GOOSE communication technology, the communication mode of the system is analyzed and established. The RTDS signal source system is connected with the virtual protection device, and the closed loop test is carried out through the correct communication configuration. It can not only test the basic function and response characteristics of the virtual protection device, understand the internal signal flow and logic flow, but also visualize the connection of the secondary loop through the secondary loop display and analysis module in the system. The development and application of the system has a certain training significance for the practical engineers, so that the participants can deeply understand the internal working principle of the intelligent device in the secondary system. Learn the action characteristics of the internal protection components and the cooperation of the logic components in the case of failure, and master the basic protection action report and analysis ability. Through the closed loop test, the function signal flow of the secondary system logic loop can be grasped under the condition of fault. At the same time, the hardware equipment in the intelligent station is difficult to be configured in the actual engineering training. The use of software simulation can greatly reduce the equipment of the actual protection device and save the investment.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM63;TM76

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本文編號(hào)：2352540