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The problems of power sharing and loop current in parallel inverters situation will affect the operation efficiency of micro-grid. The model of two parallel inverters in the micro-grid island mode is built to test the power sharing droop algorithm and the control system. Using MATLAB/Simulink, the loop current and the power sharing results are analyzed. Conclusion shows that the different system parameters...
The dynamic positioning (DP) ship maintains its position and heading by active thrusters. Some measurements of the ship motion variables can be obtained from certain reference sensor systems. However, the other measurements may be expensive or impossible to be obtained, such as ship velocity and acceleration. Fortunately, they can probably be estimated using the available measurements and the ship...
Intelligent underwater robot has been drawing increasing interests in various areas such as ocean resource exploitation and etc. It is well known that the dynamics of underwater robot are highly nonlinear and complex.The proportional-integral-derivative (PID) control scheme has been widely used for most industrial processes which are represented by nonlinear systems. However, it is difficult to find...
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