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DIRECT is known for balancing the exploration and exploitation of a search space. This paper seeks to explore the improvement of diversity among solutions through the use of qualitative indicators in multi-objective DIRECT framework. Three different indicators - Hypervolume (HV), Epsilon (EPS), R2 indicators are used in this study. The three variants of indicators are tested on the Black-box Multi-objective...
Z-source inverter is a power electronic converter with potential applications in areas like renewable energy, electric vehicles, etc. because unlike traditional inverters, it can provide a boost in output voltage without any additional DC-DC boost converter stage in between the DC source and inverter. This feature is particularly useful if the input DC source is of low voltage like battery or of fluctuating...
This paper presents the performance and power quality analysis of Asymmetrical Cascaded Multilevel Inverter in terms of various parameters like voltage, current and Total Harmonic Distortion. Simulations of Asymmetrical Cascaded Multilevel Inverter are performed and analyzed for different levels of output voltages with harmonic profile. Genetic Algorithm is used to find out the switching angles at...
The design of non-contact type sensor based on the concept of fringe capacitance and its performance evaluation infers that it employs self-compensation but restricts monitoring to a single threshold level. This is overcome by designing a multi threshold liquid level sensor with increased number of electrodes. This increases the complexity of Signal Conditioning Circuit (SCC) and also confines the...
A 100 MHz switching power supply with two-loop control is proposed for radio frequency power amplifiers. The power supply has a tracking bandwidth of 5 MHz and an estimated efficiency of 80%. The two-loop topology consists of a buck converter with an inner loop for one-cycle control and an outer loop that contains a PI compensator. With the two loops a stable feedback control is obtained with an excellent...
A 100 MHz DC-DC switching converter with one-cycle control is proposed for radio frequency power amplifier. All blocks of one-cycle controller are built up on AMI 0.5 mum technology. The power supply has a tracking bandwidth of 5 MHz and an estimated efficiency of 80%. The converter performance is verified by means of simulations.
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