In the article, the method of designing the path planning on the basis of an unstable mode is described. This method is based on the bionic approach and does not require mapping, it reduces requirements for the sensor subsystem. In this article, we propose a method of obstacle avoidance in which an unstable mode is realized in a separate dynamic link. The output of the dynamic link corrects the desired course of unmanned surface vehicle (USV). This allows to set the unstable trajectory of motion only at the planning level, and at the regulatory level to function in a stable mode. In addition, this approach allows you to plan the direction of detour travel. Detailed description of the proposed path planner, as well as the results of the research in Matlab are provided in the article.
Keywords: Control system, unstable mode, path planner, unmanned boat, obstacle avoidance
In the article the question of the distribution of the load factor of a synchronous generator, which determines the percentage of the PTO on the particular consumer generator. When transporting the electricity consumers on several lines from different energy sources, there is a problem of rational distribution of power level that the consumer will take from each of the sources. This paper proposes a method of allocation, which aims to minimize power losses in power lines. Disabled distribution law SG load factor, which takes into account line losses and possible limitations on the level of generated power generators.
Keywords: the load factor, synchronous generator, control system, smart grid, power distribution.
Recently becoming urgent problem of managing distributed processes of production, transmission and consumption of energy. This fact is associated with the emergence of a significant number of generators and the possibility of a primary control on all elements of the grid. In this connection, in proposed three-level distributed power grid management, which includes the upper level of segmentation networks, distributed control average frequency and power level and a lower primary control. The methods of control for each of the above levels, the results of simulation.
Keywords: smart grid management system, distributed control, frequency control and power.
The composite cathode material of the core@shell type with the LiMn2O4@LiCoO2 formula of has been successfully synthesized using the solid-state reactions in several stages. Its structure has been studied by means of X-ray diffraction, scanning and transmission electron microscopy and vibrational infrared spectroscopy. Electrochemical investigation in two-electrode cell has been showed improvement of characteristics of the synthesized cathode material than the constituent components. The specific power of LiMn2O4@LiCoO2 is 650 mWh/g, against 450 and 500 mWh/g for LiCoO2 and LiMn2O4, respectively.
Keywords: lithium-ion batteries, cathode materials, Delafosse, X-ray structural analysis, electron microscopy, electrochemical properties
The solid solution of LiMn1/3Cr1/3Fe1/3O2 with the structure of α-NaFeO2 isostructural with the widely used LiCoO2 has been synthesized and investigated as a cathode material. Rated voltage of LiMn1/3Cr1/3Fe1/3O2 relative to the lithium is 4 V. The possibility of charging − discharging the material to a specific capacity of 220-250 mAh/g at currents of C/15-C/50 without phase transformations has been experimentally demonstrated.
Keywords: lithium-ion batteries, cathode materials, Delafosse, solid solution, X-ray structural analysis, electrochemical properties
A mathematical model of a surface mini-ship "Neptune", including a mathematical model of the actuators. Used to identify the parameters of the mathematical model. analysis of stability and controllability of surface mini-vehicle for its mathematical model.
Keywords: mathematical model, surface mini-ship, handling, stability
In this paper we propose an approach to the implementation of the automatic control system of autonomous unmanned surface vessels on the example of a surface mini-ship "Neptune". Synthesized autopilot algorithms based on the theory of control of dynamic objects, developed by prof. Pshihopovym. A program of mathematical modeling. simulation results, which confirm the correctness of the proposed algorithms.
Keywords: autopilot, surface ship, mathematical modeling
In this paper we propose an approach to the implementation of the automatic control system of autonomous unmanned surface vessels on the example of a surface mini-ship "Neptune". Synthesized autopilot algorithms based on the theory of control of dynamic objects, developed by prof. Pshihopovym. A program of mathematical modeling. simulation results, which confirm the correctness of the proposed algorithms.
Keywords: autopilot, surface ship, mathematical modeling
In the paper we consider the energy efficiency of electric trains in overcoming the curved portion of the profile path. In this paper, were synthesized motion control algorithms that will help conserve energy resources by means of changes in traffic patterns electric depending on the profile path. The simulation electrorolling stock motion by offer the model showed a reduction in energy consumption compared to the nominal operation.
Keywords: energy efficiency, electric train, traffic management, motion control algorithms, reducing the consumption of energy resources
The stated task is development of planning system of energy-efficient trajectories for stratospheric airship. Different intellectual approaches for this task were analyzed. Genetic algorithms were chosen. Results of application of genetic algorithms were considered.
Keywords: MAAT, high-altitude airship, control system, planning, genetic algorithm
In this paper, the synthesis of a trajectory regulator for a mini-helicopter are described. We propose a method to hardware-in-the-loop simulation using simulator AerosimRC. The simulation results are showed. The tasks for the application of the method are pointed.
Keywords: position-trajectory regulator, helicopter, mathematical modeling, simulation, algorithms.