In control of dynamical system, too high uncertainty of system parameters may cause fault of controller design which leads to instability. To avoid such undesired case, identification of good ap-proximation of dynamical model and its parameters is very important. In this paper, we propose methods for obtaining accurate value of each parameter for Unmanned Aerial…
The number of traffic accidents and theft of vehicles which are increasing every day around the world, has become the problem for people nowadays. Traffic accidents in remote areas cause difficulty for asking emergency help for the victim moreover, most vehicle owners worried about missing their vehicle and hopeless to find it back. This paper…
A linear matrix inequality (LMI)-based robust control is discussed in this paper for a three-phase grid-tied inverter with L-filtered output under unbalanced grid situation. The controller of this proposed method consists of two parallel current control for positive and negative sequence signals. Uncertainty models are also considered in this paper to provide wider range of…
A natural disaster is happening every year in the world. Countries like Japan, Indonesia, and the Philippines are often effected by unexpected climate change. Unexpected natural disasters destroy the landline, internet connection, and mobile communication systems infrastructure surrounding the disaster areas. In this research, the communication backup is proposed for Amateur grounding operators during unexpected…
The primary role of Economic Load Dispatch (ELD) is for obtaining the most efficient operation out of an electrical power system generation network. The main objective of performing the ELD is to minimize the generator fuel cost. To solve the problem, Improved Particle Swarm Optimization (IPSO) algorithm is proposed in this research. There are two…
In power generation, one of main problems is how to meet related power demand continually and effectively. As known in field power operation, economic dispatch (ED) is one of the important problems in supplying load demand with minimum cost by summing the output of each generator. This research is trying to propose Lagrange with a…
The interferometric method measures water evaporation was conducted by opti-cal path shifting interferometry due to the change in the length of optical path. The height of water that dried up from the glass is equally valuable to the increased length of the light. Counting the number of sinusoidal fringes allowed us to calculate amount of…
This paper presents the mixing proportion of high-performance concrete (HPC) having compressive strength over 80 MPa. This type of concrete comprises of almost con-stituents with fine particles and often having additional steel fibers in the mixture of HPC. The HPC showed excellent properties such as high compressive strength, high stiffness, improved toughness and durability compared…
The paper presents the results of reinforced concrete beam tests in crack resistance, deformability under long-term loading. The study allowed evaluation stiffness and cracks resistance of reinforced concrete beam using pre-organized cracks and conventional reinforced concrete beam under long-term loading. The results of deflection of rein-forced concrete beams with pre-organized cracks under the action long-term…
Composite reinforced concrete (RC) elements with ultra-high performance con-crete (UHPC) subjected to blast loading was conducted through numerical modelling. The interfacial bond characteristics were also considered into the model. The blast model was validated using test results in available literature. Behavior of the UHPC layer attached onto RC elements was numerically observed. Simulation results showed…
