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Relay protection device has been developed in the country for nearly two decades , numerous substation protection devices generally requires computerized . For the development of various functional protection devices , the first to develop a common platform for further development of platform-based development model means more conducive to improve development speed and reduce development and production costs , improve product quality , improve product 's ease of use and ease of maintenance . According to various functions substation relay protection equipment needs, first proposed platform design requirements, and then from the system architecture, hardware design and software design discussed several aspects of the design of microcomputer relay protection platform . The proposed platform architecture can be flexibly configured , using the analog input and I / O expansion interface , I / O control bus technology, the number of analog input channels and digital input and output channels of flexible configuration , can meet the maximum requirements , but also in the smaller demand losing economy. This paper describes a platform for the Universal Modular hardware design, as well as the composition of device modules , the main control module software design , module division and the module interface standards , hardware and software aspects of the anti-jamming measures . Finally, the platform developed under computer protection device in Qiangang 110kV system to achieve good results achieved .
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