To achieve a domestically developed alternative to the manufacturing message specification(MMS)as the core communication technology for the substation control layer,the State Grid Corporation of China has estab-lished the communication message specification(CMS)for secondary systems in substations.However,the specific application implementation plan has not yet been provided.Therefore,to promote the application of the CMS proto-col and advance research on the independent and controllable core technology of substations,a solution is proposed to implement the application of the CMS protocol on a new generation of independent and controllable embedded pro-tection devices.The solution outlines specific implementation methods,including encoding and decoding,commu-nication structure,compatibility application of CMS and MMS,as well as communication security.The feasibility of the solution has been verified through service consistency testing and code robustness testing.The solution has been applied in the new generation of independent and controllable product platforms.
CMSMMSindependent and controllablecommunication protocolsubstation control layer
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