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    Control and management of solar PV grid using scada system
    (Institute of Electrical and Electronics Engineers Inc., 2022) Abdulsalam, Abdulsalalm Bouaisha; Alsaadi, Hajir Adil Jasim; Hamodat, Zaid
    The design and construction of a supervisory control and data acquisition (SCADA) system for remote control and monitoring of grid-connected inverters are described in this thesis. As the number of battery energy storage systems linked to the grid increases, the number of inverters connected to the power system increases as well. Utility providers' capacity to monitor and control any inverters linked to the grid is critical for network stability, enhancing power quality, and maintaining stable energy pricing. critical aspects that must be included in a low-cost SCADA system for grid-tied inverters to ensure its effectiveness Several SCADA systems were evaluated throughout the inquiry to discover if they could be used to meet the standards. The SCADA system has been significantly improved based on test results, and a server based on the Internet of Things (IoT) has been retained as the system's primary component. To be successful, the SCADA system required automatic management of the inverter, taking into account changes in energy pricing and fluctuations in renewable energy generation over time. This was important to optimize the economic benefits of the inverter. The results indicate that the SCADA system created met the research's requirements and that the wind prediction algorithm maximized the project's economic advantages.
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    Öğe
    Design a wideband class-j power amplifier
    (Institute of Electrical and Electronics Engineers Inc., 2023) Atilla, Çağdas Doğu; Alsaedi, Mustafa Oudah Hani; Alsaadi, Hajir Adil Jasim
    This paper presents the modern design and simulation of a broadband Class-J power amplifier (CJPA) tailored for enhancing military radar systems, especially those operating in the critical L-band spectrum. Motivated by the need for improved radar performance, our research aims to achieve higher efficiency and power output through the meticulous application of load pull and source pull techniques in the input and output matching circuit design to obtain the input and output impedance for active device at maximum power to match them with 50 Ω by design matching circuits using Smith chat utility. This study utilizes the GaN HEMT CGH40025F and focuses on designing and simulating a CJPA operating in the 1.6 to 2 GHz frequency range for the L-band. The test results demonstrate that the CJPA outputs around 40 dBm when the input power is 24 dBm, with a notable power added efficiency (PAE) of 63% and a transducer gain of 16 dB within the band. The simulation and testing were conducted using the Keysight ADS software. The significance of these findings lies in the enhanced capabilities they bring to military radar systems, with the potential for improved target detection, tracking, and overall system performance. Moreover, the optimized CJPA design may find applications beyond military settings, contributing to advancements in RF amplifier technology for diverse communication and sensing systems.
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    Öğe
    Design continues mode inverse class-f power amplifier
    (Institute of Electrical and Electronics Engineers Inc., 2023) Atilla, Doğu Çağdaş; Alsaedi, Mustafa Oudah Hani; Alsaadi, Hajir Adil Jasim
    This paper outlines the design, simulation, and testing of a continuous mode inverse class-F (CMICF) power amplifier (PA) specifically optimized for GSM applications. The comprehensive design methodology encompasses DC analysis, optimum load impedance calculation, stability circuit analysis, and input and output matching circuit design. The amplifier is built using Gallium Nitride (GaN) High Electron Mobility Transistor (HEMT), and it introduces a novel technique for designing the output matching network (OMN). This technique involves extracting parasitic elements from the power device using a tuning method and employs a graphical approach with the Smith chart utility to obtain the second and third harmonics of the output signal. The resulting design achieves high efficiency with a reduced component count, simplifying the overall design process and reducing costs. The design work was facilitated using Keysight ADS software. Operating in the frequency range of 1.5 GHz to 2 GHz, the amplifier demonstrates a maximum output power of approximately 40 dBm and a power gain of 16 dB, with a power-added efficiency exceeding 70%.