傳統牽引變電所SCADA 系統由于設計廠家不同，接口格式、實現方式不同，不利于數據共享，系統擴展性差。本文設計一種利用Web Service 的優點實現跨平臺的變電所信息發布系統，利用SCADA 系統的原有組件,將其封裝成WebService，部署在Web 服務器上，并在私有UDDI 注冊中心發布服務描述文檔，上級系統可調用各Web 服務，實現監控信息的實時查看和歷史信息的瀏覽，并可按需定制新的應用系統，以提供給相關部門進行快速決策和實時管理,為鐵路牽引供電管理信息系統（EMIS）集成提供一種新的途徑。
關鍵詞：牽引變電所；監控系統；Web 服務；Web 發布系統

Abstract: Traditional SCADA system can't satisfy with the needs of information interactive, and it is hard to realize information sharing. The design and implementation of cross-platform substation supervisory control information publishing system based on Web
Service is introduced in this paper. Here, the structure and functions of substation distribution system and the way to implement them are presented. Web Service realizes communication between components with different technology and platform, affording technology support to solve information sharing through cross-platforms. The system integrates Internet services and completes distributed network
services, and support same-time and history information access. This method is a new solution of integration of power enterprise MIS.
Key words: substation; supervisory control system; web service; web publishing system