The basic architecture of the ECS-700 control system that integrates DCS and DEH for the first time is introduced， and its hardware and software performance is tested and analyzed. Besides， the application and reliability design of the system in ultra-supercritical units are discussed， and relevant optimization items are proposed. The performance tests and practical application of the ECS-700 control system show that it can meet the requirements of the power industry standards in terms of main performance and main application functions， and that it can provide a reference for the commissioning， operation and maintenance of power plants using the same type of distributed control system.
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