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To realize the laboratory simulation of wind load in the test of ocean engineering structure dynamic model, this design develops an open system of wind velocity control. It briefly introduces the integral structure design and software development of the system. Due to the vulnerability to the environment, the difficulties of establishing mathematical model and controlling of the open wind speed control system, fuzzy self-adaptive PID algorithm combined with expert control is adopted to track target speed and realizes the real-time control of the wind velocity well. The end experiment verifies open wind speed control system can meet the experimental requirements.