Brushless DC motor control system based on submarine hybrid transmission technology

The energy and data hybrid transmission technology is one of the most important technologies in the field of submarine investigation and exploitation. It is urgent to study high-power and high-speed hybrid transmission technology. All kinds of submarine equipments, using electric motor to drive the actuating mechanism, require the kind of technology to solve the energy and data hybrid transmission problem. In order to solve this problem, our research team designs and verifies one kind of submarine motor control system, which is based on the Hybrid transmission technology and BLDC (Brushless Direct Current) motor control technology. A single coaxial cable, which has the length of 10km, is used for the high-voltage DC power source transmission. The high-speed data is coupled on the same cable by capacitance. The system can supply 3KW power to submarine equipments. It has achieved good results that the platform on the deck can monitor and control underwater motor system in real time. The experiments show that the system is feasible and practical. It will be used by all kinds of underwater equipments widely.