iosr-JEEE   Volume-16 ~ Issue-5 ~ Sep. – Oct. 2021

Abstract: The article deals with the research problem of building a self-balancing two-wheeled robot model based on the theoretical foundation of the inverted pendulum model. Learn car models, self-balancing 2-wheel robots, and balance basics. Learn car models, self-balancing 2-wheel robots, and balance basics. Learn car models, self-balancing 2-wheel robots, and balance basics. Learn car models, self-balancing 2-wheel robots, and balance basics.

Keywords: Robot, balance car, PID controller.

[1]. Hoang Viet Quang (1993), Calculation of stability of electro-hydraulic transmission system on turbine speed control and using Microprocessor 8086/8088 to control hydraulic system according to program.
[2]. Truong Cong Tuan, Nguyen Van Dung (2006), Self-taught programming Visual Basic 6.0, Culture - Information Publishing House.
[3]. Department of Hydropower (2003), Hydropower station works. Thuy Loi University.
[4]. Institute of Irrigation Science (2006), Handbook of Irrigation Techniques, Agricultural Publishing House.

Abstract: This paper presents a solution to embed a data acquisition subroutine in an embedded program of microcontroller in a control board. The solution considers the transmission speed over UART protocol, data frame size, and designs a data packet that fits 4 channels of 100-μs data and 20 channels of 2-ms data. A program also was built on PC to display the data acquired from the microcontroller as graphic charts, data table. The PC program can also send command to the microcontroller to start, stop and set the parameters of the control board. With the capability to view and set parameters of the control board, different experimental scenarios can be created and executed. Implementation was carried out on a maximum power point tracking (MPPT) Control Board.

Keywords: UART, embedded program, microcontroller, MPPT, data acquisition, control loop, STM32

[1]. Hughes, Electrical and electronic technology, Pearson Education, 2015.
[2]. J. Axelson, Serial Port Complete: COM Ports, USB Virtual COM Ports, and Ports for Embedded Systems, Lakeview Research, 2007.
[3]. G. Niemirowski, Serial port and Microcontrollers: Principles, Circuits, and Source Codes, CreateSpace, 2013.
[4]. S. C. |. D. Electronics, "BASICS OF UART COMMUNICATION," [Online]. Available: https://www.circuitbasics.com/basics-uart-communication/. [Accessed 12 October 2021].
[5]. STMicroelectronics, "STMF103x8 datasheet," STMicroelectronics, 2015.

Abstract: The paper presents a methodology for determining the continuity indicators of the electricity supply of consumers, in the design stage. In operation, these indicators are determined by recording the number and duration of power outages affecting consumers in the analyzed network. The first part of the paper presents the continuity indicators provided in the performance standards, indicators required by some distribution operators in the design phase. The calculation of the reliability indicators is done using the continuous time Markov chain method, which assumes that the equipment is either in a failure process with intensity λ, or in a repair process with intensity μ. The last part of the paper presents a calculation example for a 20 / 0.4 kV network in Bacau County, Romania.

Keywords: Continuity indicators; Reliability indicators; Distribution network; Design stage

[1]. ANRE Romania, Performance Standard for the electricity distribution service, approved by Order no. 46/2021.
[2]. Mirosław Kornatka, Anna Gawlak, and Grzegorz Dudek, Determination of reliability indices of the distribution network based on data from AMI, E3S Web of Conferences, Volume 84, 2019, https://www.e3s- conferences.org/articles/e3sconf/abs/
a. 2019/10/e3sconf_pe2019_02004.
[3]. Ivan Bandurin, Alexey Khaimin, SAIFI reliability calculation for the distribution line, E3S Web of Conferences 58, 02010 (2018), https://www.https://www.e3s-conferences.org/articles/e3sconf/abs/2018/33/e3sconf_rses2018_02010.
[4]. Degarege Anteneh, Baseem Khan, Om Prakash Mahela, Hassan Haes Alhelou, Josep M. Guerrero, Distribution network reliability enhancement and power loss reduction by optimal network reconfiguration, Computers and Electrical Engineering 96, 2021.
[5]. L.D. Arya, S.C. Choube, Rajesh Arya, Differential evolution applied for reliability optimization of radial distribution systems, Electrical Power and Energy Systems 33,2011, pp. 271–277

Abstract: This paper presents a new control technique for multilevel inverter based DSTATCOM to compensate reactive power and improve the Power Quality (PQ) in distribution system. In the proposed approach, Artificial Bee Colony (ABC) algorithm is employed for enhancing the learning procedure of Optimized Recurrent Neural Network (ORNN) for mitigating the PQ issues. The ORNN technique is utilized for selecting the ideal control signal of multilevel inverter through the optimal adjustments of control variables. The proposed strategy creates an ideal control of the DSTATCOM to improve the quality of power and manage the line voltage by providing proper compensation. With this control technique, PQ issues are settled with precision and rapid execution to diminish the dip and surge issues in distribution system. This work is carried out using MATLAB/Simulink platform and the execution is assessed by comparing with various techniques like Fuzzy, ANN and ANFIS.

Keywords: ORNN, DSTATCOM, PQ, Distribution System, Multilevel Inverter

[1]. O. Mahela, A. Shaik and N. Gupta, "A critical review Of detection and classification of power quality events", Renewable and Sustainable Energy Reviews, Vol. 41, pp. 495-505, 2015.
[2]. O. Mahela and A. Shaik, "Power quality improvement in distribution network using DSTATCOM with battery energy storage system", International Journal of Electrical Power & Energy Systems, Vol. 83, pp. 229-240, 2016.
[3]. M. Saini and R. Kapoor, "Classification of power quality events – A review", International Journal of Electrical Power & Energy Systems, Vol. 43, pp. 11-19, 2012
[4]. W. Tareen, S. Mekhilef, M. Seyedmahmoudian and B. Horan, "Active Power Filter (APF) for mitigation of power quality issues in grid integration of wind and photovoltaic energy conversion system", Renewable and Sustainable Energy Reviews, Vol. 70, pp. 635-655, 2017.
[5]. B. Zhou, W. Li, K. Chan, Y. Cao, Y. Kuang, X. Liu and X. Wang, "Smart home energy management systems: Concept, configurations, and scheduling strategies", Renewable and Sustainable Energy Reviews, Vol. 61, pp. 30-40, 2016

Abstract: In this research paper, design, implementation, and testing of an Arduino microcontroller and IoT-based low-cost pulse oxygen saturation detection device using an integrated circuit sensor as the central part of the system. The measured physiological parameters are the pulse rate and blood oxygen saturation state (SpO2) from the peripheral capillary. The Arduino Uno R3 microcontroller is the heart of this system to process the detected electrical signals and convert them ultimately into the SpO2 value with the appropriate unit. A wireless platform for this system was developed to send the measured data to a mobile device through the Internet of Things (IoT) and mobile apps.......

Keywords: Pulse Oximeter, Internet of Things, Design, Implementation, Testing, Microcontroller.

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