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SMVsubscriber – IEC 61850
采樣測量值幀的硬件處理
IEC 61850-9-2標準引入了采樣測量值(SMV或SV)過程總線概念。該標準建議將電流和電壓互感器(CT,PT)的輸出和其他信號在源頭上進行數字化處理,然後使用基於以太網的局域網(LAN)與這些設備進行通信。
采樣值作為多播以太網幀編碼的數據集樣本的高速數據流進行傳輸。該協議使用發布者/訂閱者模型,其中發布者將未確認的數據傳輸給訂閱者。例如,在IEC 61850-9-2 LE配置文件中,對於50Hz的電網頻率,采樣值以每秒4000幀的速率發布,而對於60Hz則以每秒4800幀的速率發布。
SoC-e開發了一項創新技術,可利用FPGA上的並行硬件處理優勢,以確定性和極低的延遲處理大量SMV流。
SMVsubscriber分析傳入流量並檢測IEC 61850-9-2采樣測量值(SMV)幀。根據幾個配置參數,處理選定的SMV幀,提取四個相位(A,B,C和N)的電流和電壓采樣值。IP使用這些采樣值來執行離散傅立葉變換(DFT)的計算,以獲取每個相位的角度和大小以及均方根(RMS)。它還為樣本提供用戶定義的抽取率。



SMVsubscriber訂閱者的主要功能
- 第2層IEC 61850-9-2(SMV)幀處理
- DFT計算模塊的高性能實現,用於計算一次諧波的幅度和相位(50或60 Hz)
- 高性能RMS計算模塊(高達1562500計算/秒)
- 最多支持128個並發SMV流(最多320個流,具體取決於過程窗口配置)
- 完整計算6us的確定性等待時間
- 狀態,配置和統計計數器寄存器
- 1000 Mbps AXI-Stream接口,用於無縫片上通信以及與SoC-e網絡IP(HSR/PRP,以太網,TSN)的組合
SMVsubscriber還可以配置
SMVsubscriber可以靈活,輕松地進行定制(GUI界面),以根據所需的性能資源進行權衡來生成最佳實現。除其他參數外,SMVsubscriber還可以配置:
- 支持的最大數據流個數
- 硬件DFT處理模塊的並行度
- 可實施RMS處理模塊的並行度
- 發送給高級軟件應用程序的RAW SMV幀的抽取率
- 樣本處理速率和窗口,用於調整計算DFT和RMS的每個流的頻率
Keeping up with the times and innovating - Explore more potentials of TSN with Hongke
Time Sensitive Networking (TSN) is a new generation of network technology based on the evolution of the standard Ethernet architecture. It takes traditional Ethernet as the network foundation and provides a data link layer protocol specification for deterministic data transmission capability through mechanisms such as clock synchronization, data scheduling, and network configuration. Compared with traditional Ethernet, TSN can provide microsecond-level deterministic services, reduce the complexity of the entire communication network, and realize the convergence of information technology (IT) and operation technology (OT). With its precise clock synchronization, deterministic traffic scheduling, and intelligent and open operation and maintenance management framework, TSN can ensure the high-quality transmission of multiple business traffic in a common network, and it has both performance and cost advantages, and it is the development trend of the future network. This is the future trend of network development.
Currently, TSN technology has a high level of discussion in the automotive, industrial, rail transportation, and aerospace fields. As a non-vendor-bound real-time communication protocol, we believe that TSN technology has a good application prospect.
Welcome to contact us to explore and learn the integration of TSN technology with various industries, and actively promote more applications on the ground to jointly build a new world of intelligent interconnection.