The Research Of Monitor-control System Used In Ship Gas Turbine Electric Generating Set

Integration Full Electric Propulsion (IFEP) System is the main propulsion form of the marine in the future, the IFEP technology which uses gas turbine to the prime power is one of the main development of the marine power plant. At present, it is not clear that the strategy of the character and the control of the marine split shaft gas turbine electric generating set of the prime mover in China. So the research of the monitor-control system of the marine gas turbine electric generating set and study with the control policy is very important.The paper analyzed the structure and principle of the mechanical control system of GTD-350 split shaft gas turbine at first, then developed an electronic controller which is based on PLC and servomotor, finally achieved the electronic control of GTD-350 gas turbine. On the basic of this, the paper worked over the monitor-control system of the GTD-350 gas turbine electric generating set, and designed the embedded monitor-control system software. The constant speed control of the units Achieved by used the PI/PD control strategy. The deviating regulation and electrical synchronizer realized by the method of feed-forward control form the functions of protection, parameter adjustment, and data record in the system at the same time.At last, the simulation modal of GTD-350 gas turbine was built by amending the general simulation modal of split-shaft gas turbine, and the validate and research of the semi-physical simulation on the control policy and the parameter of the control system by used the modal which is based on the Matlab-xPC flat of semi-physical simulation was done. The result indicated that the control system can realize the stable rotation control during the condition of the small sudden load change. In the process of adjustment, the maximum overshoot is less than 10%, stabilization time is less than 5s. The process meets the demand of the marine control system of the prime mover which is used for power generation. The electrical synchronizer of the system lay the foundation for the multi-unit paralleling.