The proposed paper has objective to show the solar power has poor quality inverted AC output, if it is merely using power conversion approach from DC to AC. If it is not regulated and controlled properly, the poor qua...
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Climate is rapidly changing around the world. Over time, there have been significant changes in the weather. Rainfall is now erratic due to climate change. The frequency of extreme weather events like droughts and flo...
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This work presents an enhanced gain quadratic type boost converter (EQBC) for driving point-of-load applications. The presented topology provides a higher gain boost and superior performance compared to the traditiona...
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In recent years, solid-state transformers (SSTs) have gained significant attention in the literature as a promising solution for future power grid applications, especially three-stage architectures. Most studies regar...
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ISBN:
(数字)9798331515171
ISBN:
(纸本)9798331515188
In recent years, solid-state transformers (SSTs) have gained significant attention in the literature as a promising solution for future power grid applications, especially three-stage architectures. Most studies regarding SST focus on the dc-de stage and transformer design, as it is the most critical in terms of losses and is also responsible for isolation. However, the ac-dc stage also plays a crucial role in defining the overall system architecture, affecting the number of components, complexity, reliability, and fault tolerance. This paper compares different multilevel converter-based architectures for SSTs. The design of both Cascaded H-Bridge-based SSTs and Modular Multilevel Converter-based SSTs are evaluated, considering different semiconductor blocking voltages. Finally, simulations are conducted, validating the proposed design.
Power System Electromagnetic Transient (EMT) simulation is crucial for designing and evaluating power system control systems. It helps researchers optimize control strategies and assess their effectiveness under diffe...
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Cryogenics amplifiers feature very low noise injection and low power consumption, and therefore, they are of highly demand in RF imaging, space communications, medical applications, and quantum computing. Unconditiona...
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ISBN:
(数字)9798350338782
ISBN:
(纸本)9798350338799
Cryogenics amplifiers feature very low noise injection and low power consumption, and therefore, they are of highly demand in RF imaging, space communications, medical applications, and quantum computing. Unconditional stability with high gain also feature these applications. The band gaps of these devices are independent from temperature, suggesting their suitability for cryogenics applications. Furthermore, the nanometer scale lengths of these devices lead to ballistic transport with no scattering or diffusion, resulting in high-speed, low-power, and low noise capabilities within Extremely High Frequency (EHF) operating range that may extend into the THz. This study addresses these parameter issues within the range of 90K to 300K, assuming liquid nitrogen coolant medium, and further shows its stability above the room temperature as well. An appropriate model for the device that incorporates complex parasitics was investigated within this temperature range. The device with its estimated parameters, has been integrated into a simulated three-stage amplifier system. A low-noise gain between 16.9-18.9 dB with estimated noise figure of 2.97 dB and a bandwidth of 269 GHz bandwidth were predicted, with a high Stern stability factor suggesting unconditional stability over the bandwidth.
In this work, we synthesise a cooperative strategy to mitigate jamming attacks by a full-duplex cognitive adversary. The full-duplex adversary is such that it jams a specific frequency band and measures the average en...
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In human, skin tone is significantly varying from one extend (darkest) to other (lightest) due to the difference in the amount of pigmentation (melanin). Even though skin color detection and segmentation is the challe...
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This paper presents the design and hardware implementation of the pulse width modulation (PWM) control approaches for a multi-input single-output (MISO)-DC/DC Boost converter for the application of the proton exchange...
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Fog computing provides lower latency and higher bandwidth compared to cloud computing and is widely used in Internet of Vehicles (IoV). Vehicles cannot compute all tasks locally due to their limited computing power an...
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