Wide area measurement system（WAMS） based on synchronized phasor measurement technology provides a new data support platform for research and development in all area of power system， that makes it possible to monitor and control the dynamic characteristics of gird asynchronously， and to greatly promote the research advancements of related application in power system.Data Concentrator is a key part in WAMS， which connecting synchronized phasor measurement unit（PMU） with main measuring station. Currently， most schemes for solution are implemented with industrial computer. Practices show that the industrial computer based data concentrator has apparent deficiency in reliability and scalability. The new data concentrator with blade structure design can significantly improve the performance in reliability and scalability. In particularly， the structure proposed shows strong adaptability in the application of smart substation based on the IEC 61850 process bus. Its practical operation in substation proved validity and practicality of the solution.