A control project for electronics engineering students The relevance of control theory to electrical engineering can be demonstrated vividly to undergraduate students by its application to the design of linear continuous electronic circuits that control the height of a hovering helicopter, animated on a PC screen. The object of the student project is to design altitude control electronics by using control theory. The flexibility of the PC allows for full data logging and graphic display features as well as giving each student a unique set of parameters.
Department of Electrical & Electronics Engineering, AIUB, Bangladesh, Saddamul Islam
This paper presents simulation and design for the improvement of Li-ion battery ac-tive balancer using PI controller. The growing market for lithium ion (Li-ion) battery cells has made a positive impact towards electrical energy storage (EES) system throughout the advancing technological and scientific world. Balancing in a battery pack has become a main priority to avoid over-charging and over-discharging while also improving the Li-ion battery life. Unlike passive balancing, active balancing transfers the energy from one cell to another or controls the cell’s output, thus improving its efficiency. This paper presents how previous work was accomplished by many scholars in order to avail themselves of the active balancing project. A cell model was shown in this paper that was built based on energy transfer circuit theories. A capacitor(C), inductor (L), MOSFET (M) and Diode (D) were used in the circuit build in order to balance the cells of different State-of-Charge (SOC). A PI controller was added with circuit to improve the voltage efficiency. After adding PI controller, the voltage balance of the cell was seen improved.
Professor, Department of Electrical and Electronics Engineering, PACE Institute of Technology and Sciences, Ongole, Andhra Pradesh, India, G.V.K. Murthy, Konduiru Yashasvini
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Here, we introduce a brand - new topology, but easy and efficient, for a grid-linked windphotovoltaic (PV) cogeneration system. A permanent magnet synchronous generator-primarily based totally full - scale wind turbine is interfaced to the utility-grid through back-to-back (Bt-B) voltage-supply converters (VSCs). A PV sun generator is at once linked to the dc-hyperlink capacitor of the B-t-B VSCs. No dc/dc conversion stages are required, and subsequently the system performance is maximized. The proposed topology capabilities an unbiased most strength factor monitoring for each the wind and the PV turbines to maximise the extraction of the renewable energy. The certain small signal fashions for the system additives are evolved to look at the general stability. The effect of the utility-grid faults at the overall performance of the proposed system is likewise evaluated. Nonlinear time-domain simulation consequences below different running situations are supplied to validate the effectiveness of the proposed topology.
Electrical Computer and Telecommunications Engineering, Botswana International University of Science and Technology, Palapye, Botswana., Frank.A. Sereto*, Ravi Samikannu*
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The reactive power compensation in power system is done by using different Flexible AC Transmission Controllers (FACTS). Unified Power Flow Controller (UPFC) is simulated and analyzed to observe its overall functions when integrated into a transmission line. It is installed in electric transmission lines hence assisting in the controlling and manipulating of the power flowing in the lines to give out reliable, controlled and efficient electricity to an ordinary consumer. The modelling of this device UPFC was done based on the theory of line models which are short, medium and a long line models. Conclusion on which model to use was based on two factors. The first one is model voltage level and length of the transmission line. The simulation of the designed circuit models was carried out using MATLAB and the results were then analyzed.
Institute of Power Engineering (IPE), Department of Electrical and Electronics Engineering, College of Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia., F S Samidi*, I S Mustafa
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Conventional trolley needs to be pushed physically around the building. When more items are placed in the trolley, the trolley becomes heavier and harder to navigate. In order to solve this problem, this paper proposes a modification made to the conventional trolley and discusses the viability of using color as the automatic following mechanism on the shopping cart. Two tests are conducted to investigate the performance of the intelligent shopping cart. The first test is to find the most suitable color whereas the second test is to evaluate the reliability of color to be used as the following mechanism. The assessment of results utilized Euclidean distance equation and Matlab/Simulink. The results shows that the Red Green Blue (RGB) pixel value of the chosen colors are changing as the trolley moves around the building because of the lighting position and intensity around the building. The color detection apps is able to endure a limit of 18.03% of color difference from the original selected color before it loses the reference. The utilization of only color as following mechanism has a high tendency to be disrupted by noise because of an adjustment in light intensity and lighting position.
SHARMA NITIN, Undergraduate Scholar, Department of Electrical and Electronics and Communication Engineering, DIT University, Uttarakhand, India., KHARE SHIVANG JITENDRA
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