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METHOD OF ENERGY-EFFICIENT MANAGING THE SHIP�S DIESEL-GENERATOR SETS

For marine diesel generator sets (DGS), working for a total load of variable modes of active and reactive power, their economy greatly depends on the time of day, weather conditions, ambient temperature, location, as well as flow characteristics of each set. While the total power consumed by ship systems and objects of various purposes can vary widely. In these circumstances, maintenance of efficient operation modes of DGS is possible due to the optimal distribution of the load between the concurrent DGS, at which generated electricity cost is minimized. The task of optimizing the load on generators is complicated by the significant differences in the technical, operating and economic characteristics of individual units of the system, as well as its analytical description in the presence of various regulators of complexity degree. In the presence of powerful computing setting, advanced tools and methods of numerical optimization the implementation of energy-efficient modes of DGS at a qualitatively new level through the use of digital technologies is offered to ensure. Energy-efficient algorithm of load balancing between concurrent DGS using the optimality principle of R. Bellman, allowing instead of one complex task of energy-saving for a group of k generators to consistently solve k simple task of energy-saving for each generator separately, is developed. Unlike the existing ways to implement the energy-efficient modes, DGS method is applicable for digital management (on-line) of ship’s current energy network, not sensitive to nonlinearity of flow characteristics of its sets, as well as to the issue of “dimensionality curse” of ship’s network. In the algorithm, the search for optimal solutions is proposed to carry out using rotation and sequential analysis technology elements in each diagonal of a matrix that simplifies the calculations. The algorithm effectiveness and correctness of the obtained results are confirmed by a specific example.