https://hdl.handle.net/20.500.12809/210 2026-04-15T07:45:10Z https://hdl.handle.net/20.500.12809/11041 Economic Operation of a Multi-Energy System Considering the Impacts of Micro-Mobility Taşçıkaraoğlu, Akın; Noorzad, Najmuddin; Catalao, Joao P. S The increasing and uncontrolled demand for energy has led to the emergence of a multi-energy system (MES), which is a promising and efficient way of providing multiple energy services to end-users, such as electricity, heating and cooling. The determination of the optimal MES configuration involves a comprehensive assessment of the entire system, including its various components, load demands, and energy prices. This study focuses on an MES that comprises renewable energy sources (RESs), heat pumps (HPs), combined heat and power units (CHPs), community energy storage (CES), micro-mobility such as electric scooters (e-scooters), and multi-energy demands. To optimize the economic operation of the considered MES, several factors need to be taken into account, especially for considering the impacts of micro-mobility. The target of the study is to maximize the efficiency of the system and minimize the operation costs when the load demands are met. The study also evaluates the optimal operation of the MES, taking the time-of-use (TOU) and non-TOU electricity tariff into account and considering the relevant constraints throughout the operation horizon. Additionally, the economic and charging impacts of e-scooters are evaluated on the system. The proposed optimization algorithm is conducted for different case studies and based on the findings, the simulation results clearly demonstrate the effectiveness of the system. 2023-01-01T00:00:00Z https://hdl.handle.net/20.500.12809/10916 Adaptive MIMO fuzzy PID controller based on peak observer Uçak, Kemal; Arslantürk, Beyza Nur In this paper, a novel peak observer based adaptive multi-input multi-output (MIMO) fuzzy proportional-integral-derivative (PID) controller has been introduced for MIMO time delay systems. The adaptation mechanism proposed by Qiao and Mizumoto [1] for single-input single-output (SISO) systems has been enhanced for MIMO system adaptive control. The tracking, stabilization and disturbance rejection performances of the proposed adaptation mechanism have been evaluated for MIMO systems by comparing with non-adaptive fuzzy PID and classical PID controllers. The obtained results indicate that the introduced adjustment mechanism for MIMO fuzzy PID controller can be successfully deployed for MIMO time delay systems. 2023-01-01T00:00:00Z https://hdl.handle.net/20.500.12809/10832 Electric vehicle charging through mobile charging station deployment in coupled distribution and transportation networks Beyazıt, Muhammed Ali; Taşcıkaraoğlu, Akın The interest in electric vehicles (EVs) has prominently increased in the recent years due to their state-of-the-art and environmentally-friendly structure. The fixed charging station (FXCS) investments, however, have lagged behind this increase, leading to many challenges for both the system operator (SO), such as power system reliability and stability, and the EV users, such as long charging times and range anxiety. In order to reduce the burden of FXCSs, in this study, mobile charging stations (MCSs) are considered and a novel energy management strategy is proposed for their optimal operation from the perspective of both the SO and EV users. The proposed optimization algorithm minimizes the total operation cost of the MCSs, which serve EVs located throughout the city, while accounts for the battery degradation cost of the MCSs. Furthermore, the proposed approach ensures the fairness between the MCS and FXCS operations by utilizing the Time-of-Use (TOU) tariff prices. The results are discussed in detail based on the operational costs, waiting time and power system impacts. 2023-01-01T00:00:00Z https://hdl.handle.net/20.500.12809/10613 A Novel Microwave Noise Generator Using Multiple Zener Diodes Connected in Series Assi, Saad A; Omarov, Jeyhun; Yıldırım, Bahadır S. A novel microwave noise generator circuit using multiple Zener diodes connected in series was designed and tested. Measurements are presented up to 6 GHz. It is presented in this letter that when the number of series Zener diodes increases, the amount of noise power generated also increases across the band of interest. However, the increase of noise power from one-zener to two-zener configuration and from two-zener to three-zener configuration is not uniform. Measurements were limited to three zeners connected in series due to available high-voltage dc power supply. Keywords 2023-01-01T00:00:00Z