Search Results - "Isik, Semih"

Power Ripple Control Method for Modular Multilevel Converter under Grid Imbalances by Alharbi, Mohammed, Isik, Semih, Alkuhayli, Abdulaziz, Bhattacharya, Subhashish

“…Modular multilevel converters (MMCs) are primarily adopted for high-voltage applications, and are highly desired to be operated even under fault conditions…”
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Purification of peroxidase from Amsonia orientalis by three-phase partitioning and its biochemical characterization by Yuzugullu Karakus, Yonca, Acemi, Arda, Işık, Semih, Duman, Yonca

“…The present work describes the purification and characterization of peroxidase from the medicinal plant, Amsonia orientalis, for the first time. The activity…”
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Fault-Tolerant Control and Isolation Method for NPC-Based AFEC Using Series-Connected 10kV SiC MOSFETs by Isik, Semih, Parashar, Sanket, Bhattacharya, Subhashish

“…Power Conditioning Systems (PCS) based on three-level converters with series-connected 10kV SiC MOSFETs have gained popularity for medium voltage applications…”
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Implementation of a Modular Distributed Fault-Tolerant Controller for MMC Applications by Isik, Semih, Burugula, Vasishta, Alharbi, Mohammed, Azidehak, Ali, Bhattacharya, Subhashish

“…Centralized control algorithm limits the hardware flexibility of a modular multilevel converter (MMC). Therefore, distributed control structure has recently…”
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An Equivalent Hybrid Model for a Large-Scale Modular Multilevel Converter and Control Simulations by Alharbi, Mohammed, Isik, Semih, Bhattacharya, Subhashish

“…Modular multilevel converter (MMC) is adopted mainly for high voltage applications with many power blocks per arm. Before commissioning a large-scale MMC…”
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Overvoltage Protection of Series-Connected 10kV SiC MOSFETs Following Switch Failures in MV 3L-NPC Converter for Safe Fault Isolation and Shutdown by Parashar, Sanket, Isik, Semih, Kolli, Nithin, Kokkonda, Raj Kumar, Bhattacharya, Subhashish

“…This paper presents a design methodology for overvoltage protection across 10kV SiC MOSFETs during turn-off after switch failure in a MV SST Power Conditioning…”
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An Optimized Circulating Current Control Method Based on PR and PI Controller for MMC Applications by Isik, Semih, Alharbi, Mohammed, Bhattacharya, Subhashish

“…Modular multilevel converter (MMC) is an excellent topology for medium- and high-voltage applications due to its advantages over other multilevel converters…”
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Soft Start-up Scheme for Weak AC Grid Dominated MTDC Networks by Isik, Semih, Bhattacharya, Subhashish

“…HVDC transmission is considered as an economical alternative for HVAC transmission at higher voltage levels for long distances due to bulk power carrying…”
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Reliability Modeling and Improved Redundant Operation for MMC-Based MTDC Systems by Isik, Semih

“…Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) transmission is one of the critical alternatives to carry bulk power, integrate a large…”
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Design of a Fault-tolerant Controller for Three-phase Active front End Converter used for Power Conditioning Applications by Isik, Semih, Parashar, Sanket, Bhattacharya, Subhashish

“…Recently, an asynchronous micro-grid PCS, enabled by 10kV SiC MOSFETs, has become an exciting research area. The PCS is lightweight and modular technology due…”
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Modeling of MMC based FACTS Device as a Replacement of UPFC for Power Flow and Oscillation Damping Control by Isik, Semih, Anurag, Anup, Bhattacharya, Subhashish

“…Rapid growth in electric energy demand, increasing substantial industry restructuring, and environmental issues are imposing enormous challenges on the…”
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A Novel Submodule Level Fault-Tolerant Approach for MMC With Integrated Scale-Up Architecture by Alharbi, Mohammed, Isik, Semih, Bhattacharya, Subhashish

“…A submodule (SM) level fault-tolerant method for modular multilevel converters (MMCs) with a scalable control design for medium- and high-voltage applications…”
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Novel Control for Active Power Compensation using DSCC-MMC based ES-STATCOM by Nath, Harshit, Isik, Semih, Burugula, Vasishta, Bhattacharya, Subhashish

“…In recent years, modular multilevel converters (MMC) have gained popularity for high-power applications such as in flexible AC transmission systems (FACTS) and…”
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A Simplified Approach based on Dual Angle-Controlled STATCOMs under System Faults by Nath, Harshit, Isik, Semih, Bhattacharya, Subhahsish

“…Voltage source converter (VSC) based Synchronous Static Compensator (STATCOM) is used for voltage regulation in transmission and distribution systems. VSC…”
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Modular Power Flow Enhancer for Transmission Networks under Unbalanced Power Grid Conditions by Isik, Semih, Burugula, Vasishta, Alharbi, Mohammed, Bhattacharya, Subhashish

“…The three-phase H-bridge or NPC converters are commonly adopted converter topologies for FACTS devices. Both the converters are classified as multilevel…”
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Partial characterization of Bacillus pumilus catalase partitioned in poly(ethylene glycol)/sodium sulfate aqueous two-phase systems by Yuzugullu Karakus, Yonca, Isik, Semih

“…Aqueous two-phase partitioning system (ATPS) was used to extract and purify catalase from Bacillus pumilus. The system parameters for effective purification of…”
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Dynamic Modelling and Control of Multi-Terminal DC Systems Considering AC Network Dynamics by Isik, Semih, Nath, Harshit, Alharbi, Mohammed, Bhattacharya, Subhashish

“…HVDC transmission is an optimal and economical solution for distant large-scale islanded or offshore AC networks. Conventionally, HVDC technology has been…”
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Performance Comparison of Detailed and Averaging Model of a Grid Connected 401-Level MMC System Under System Fault Conditions by Isik, Semih, Alharbi, Mohammed, Acharya, Sayan, Bhattacharya, Subhashish

“…The development of fully controlled power semiconductor devices has paved way the path for Voltage Source Converters (VSC) based High Voltage Direct Voltage…”
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Investigation of the Operation of MMC Based Point to Point HVDC System with Feed-Forward Current Control Scheme by Isik, Semih

“…Voltage source converters (VSCs) have been commonly used due to their flexibility to control voltage and power independently and bi-directionally. Typically,…”
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Impact of Centralized and Distributed Control Structures on the Harmonic Stability of Modular Multilevel Converter Based on DQ Reference Frame Impedance Assessment by Isik, Semih, Bhattacharya, Subhashish

“…The Modular Multilevel Converter (MMC) is one of the suitable converter topologies for medium to high-voltage industry applications. Despite the inherent…”
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