Power systems

Early detection of infertile and non-hatchable eggs benefits hatcheries by saving space, reducing costs, and preventing contamination from spoiled eggs. An automated system has been developed to detect and mark non-hatchable eggs efficiently. The system includes a conveyor that moves trays of 100 eggs through a high-power LED light assembly.

5p viengfa 28-10-2024 2 2   Download

This paper presents a technique for integrating battery energy storage systems (BESS) into a distribution network with penetration of wind and solar power in order to improve the operation efficiency of distribution networks, exploit renewable energy capability, and reduce operation issues.

12p viling 11-10-2024 3 1   Download

Electricity demand is increasing, transmission line development can not keep up with it. This puts the power system in a full load state which puts the power system operating near the boundary of stability. This paper applies deep neural networks to predict power system dynamic stability.

10p viling 11-10-2024 2 1   Download

This paper investigates the system performance of hybrid time-power switching based relaying (TPSR) energy harvesting enabled in the multisource half-duplex relaying network over the Rayleigh fading channel. The outage probability (OP) of the proposed system model with implementing maximal ratio combining (MRC) and selection combination (SC) technique at the receiver is presented and analyzed.

8p viling 11-10-2024 4 1   Download

This paper presents a centralized monitoring and management system for communication stations in communication units. The system includes on-site monitoring and alert device located at communication stations and centralized monitoring and management software at the operating center.

11p viling 11-10-2024 1 1   Download

In this paper, we aim to enhance spectrum efficiency in infrastructure-based Non-Orthogonal Multiple Access (NOMA) networks over Rayleigh fading channels. To achieve this, we introduce a Simultaneous Wireless Information and Power Transfer (SWIPT)-enabled Two-Way Relay (TWR) system.

9p viyoko 01-10-2024 2 1   Download

The study advocates for the seamless integration of BIM, creating digital modeling that encompasses various input data, from geometry to costs. This integrated approach enhances real-time collaboration, mitigates errors during design, and streamlines construction processes by aiding scheduling, resource allocation, and progress monitoring.

6p viyoko 01-10-2024 2 1   Download

This article studies the influence of modal parameters on the accuracy of the GeB method used to identify the viscous damping ratios in MDOF systems. The results compared with the formulas based on the half-power bandwidth (HPB) method show that the GeB method has good efficiency and a wide identification range.

12p viyoko 01-10-2024 2 1   Download

The inverted pendulum on a cart is a challenging and widely studied control problem in the fields of control systems and robotics. To address the need for more effective control strategies, this article presents a novel approach that combines the strengths of two powerful control techniques: Linear-Quadratic Regulator (LQR) and Takagi-Sugeno (T-S) fuzzy control.

15p viyoko 01-10-2024 3 1   Download

We also applied our proposed model to a real life system of an islanded MG at small-scale with demand, PV power, and WTG power forecast, and the DEG output power is control variable. The results of test system have demonstrated the effectiveness of the proposed method.

9p viyoko 01-10-2024 5 2   Download

This paper proposes a method to identify the optimal operating point fora photovoltaic power system. With theinformation on the power's solar irradiance, the temperature at P-N junction, and the generated power limit, an algorithm is proposed to calculate points on the voltage-power curve based on an utterly mathematical model of the generation, iterative,and bisectional techniques.

5p viyoko 01-10-2024 2 1   Download

The C-EPS steering system's performance is affected by a range of technical parameters, including steering column inertia, steering column stiffness, column damping, rack stiffness, rack damping, and steering column pinion radius. The simulation results in both the frequency domain and the time domain indicate the influence of structural parameters on the system characteristics.

7p tuongbachxuyen 05-08-2024 3 1   Download

Bài giảng Nhà máy điện và trạm biến áp: Tổng quan (Overview) cung cấp cho sinh viên những nội dung gồm: hệ thống điện (power system – Grid); nhà máy điện (power plant); trạm biến áp (Substation – Transformer); đồ thị phụ tải (Load Chart – Load schedule);... Mời các bạn cùng tham khảo!

55p codabach1016 03-05-2024 7 1   Download

This study is conducted based on the hypothesis of an accident from Fengcheng NPP with an incident level of 7, equivalent to the Fukushima accident. A modeling system has been established with different failure scenarios based on the Delft3D model. The research results will provide more insights into the extent and scope of the incident and the impact of meteorological conditions and dynamics on the propagation and distribution of radiation when an incident occurs.

17p dianmotminh02 03-05-2024 8 2   Download

The purpose of the field-oriented control (FOC) is therefore to create a tool that allows the decoupling control of the flux and torque-producing current components from the three-phase AC currents flowing in the coil. The FOC drive system is a system based on the principle of decoupling the above power components thanks to the stator current feedback control (the innermost circuit of the drive system). The FOC-type control method belongs to the class of vector control methods for electrical machines.

22p dianmotminh02 03-05-2024 6 2   Download

In this work, the free vibration analysis of Timoshenko microbeams made of the Functionally Graded Material (FGM) on the Winkler–Paternak elastic foundation based on the Modified Coupled Stress Theory (MCST) is investigated. Material characteristics of the beam vary throughout the thickness according to the power distribution and are estimated though Mori–Tanaka, Hashin–Shtrikman and Voigt homogenization techniques.

13p dianmotminh02 03-05-2024 9 3   Download

Bài giảng Cơ sở kỹ thuật điện: Bài 1 cung cấp cho học viên những nội dung về: hệ thống điện; vector pha và mạch công suất 3 pha; công suất trong mạch AC 1 pha; Bảo toàn công suất phức; hệ 3 pha cân bằng; biến đổi mạch 3 pha tương đương;... Mời các bạn cùng tham khảo!

32p codabach1016 03-05-2024 9 4   Download

Nối tiếp nội dung phần 1, phần 2 cuốn giáo trình "Phương pháp tính và tin học chuyên ngành" trình bày các nội dung: Mô phỏng Simulink Power System Blockset và Gul, một số ứng dụng của ngôn ngữ lập trình matlab, ngôn ngữ lập trình Fortran 9.0. Mời các bạn cùng tham khảo nội dung chi tiết.

138p besfriend01 02-04-2023 8 3   Download

This research investigates an innovative approach to augmenting the current evaporation pond disposal approach used in Australia, and other regions around the world. The augmentation involves the incorporation of solar plate collector technology. The technology is widely used across the world to collect solar power to drive a range of commercial and domestic applications, most commonly solar hot water systems.

110p runthenight07 01-03-2023 11 4   Download

This research investigates the relationship between post fault transient overvoltages and the functionality of the digital distance protection. The study is conducted in a 66kV network with a neutral earth resistor as method to earth the power system. This paper begins by performing an extensive power system analysis on ground fault transient overvoltages. The study is conducted by using the PSCAD-EMTC software package.

180p runthenight07 01-03-2023 10 3   Download