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This paper is about measurement of watt loss present in the capacitor banks when connected to the load. The main objective of this paper is to figure out losses such as eddy current loss, problems due to harmonics present in the system because of excess capacitor banks. Several parameters such as harmonics, k-factor and power factor are analyzed with the help of power analyzer. Practical values are...
This paper presents a DC-DC buck converter through duality approach. In switched mode power supply (SMPS), buck converters are predominant parts. To control output quantity at output end, these converters are attached after rectifiers. There are some applications in which current source is available and there is need of output current control as most of SMPS applications have low current ratings....
This paper presents a non-isolated switched inductor sepic (SI-SEPIC) converter topologies for photovoltaic boost applications. In this paper three novel switched inductor Sepic (SI-SEPIC) converters topologies are demonstrated which retrieved from conventional sepic converter by replacing inductor by switched inductor. The structure formed with two inductors and three diode in which inductor gets...
This paper presents automated Multiple Liquid Bottle Filling (MLBF) system in which liquid is filled depending upon the color of bottle. The manual system of bottle filling cannot be applied in modern industries with bulk filling requirements as the process can consume considerable time and may causing spilling or wastage of the products. Consistency in filling of the bottles can also be yet another...
This paper presents a DC-DC current buck converter through duality approach and its DC transformer modelling for current based loads. Buck converters are predominant parts in switched mode power supply (SMPS). These converters are attached after rectifiers at output end to control output quantity. There are some applications in which current source is available and there is need of output current...
Multilevel inverters (MLI) plays a vital role in high voltage and high power applications due to its capability of converting DC to AC with reduced total harmonics distortion (THD). In this paper, a new multilevel inverter (MLI) with fewer number of control switches is proposed. The proposed topology requires a fewer number of control switches compared to conventional and recently derived topologies,...
Solar energy is one of the renewable energy which is used to generate electricity with the help of PV arrays. DC-DC converter is used to step up the DC voltage from PV arrays and then it is connected to an inverter for AC applications. Conventional inverters have many issues like non sinusoidal output, high total harmonic distortion (THD), high switching stress and more number of switches. So multilevel...
This paper presents a sepic based dual output DC-DC converter, which is suitable for solar applications where two output voltages are needed at the same time. The proposed converter topology is the combination of sepic converter and high gain multilevel boost converter. Only one input source and switch is required to obtain two output voltages at the same time. One output voltage is obtained through...
In this paper, a modified cascaded H-bridge multilevel inverter (MLI) is proposed and designed for solar applications. Generally, as the level of conventional multilevel inverter increases, the required number of switches and size increases. The proposed topology is cascade of unit stages which involves 5 switches and two voltage source; moreover a unit stage is capable of generating 5 levels. Also,...
This paper presents a novel non-isolated dual output hybrid DC-DC multilevel converter. The proposed converter topology is suitable for photovoltaic applications where two voltages are needed at the same time with opposite polarity. The proposed DC-DC converter topology is the combination of two high gain multilevel DC-DC converters, one is multilevel boost converter and another is multilevel cuk...
In this paper a novel single phase multilevel inverter with single photovoltaic (PV) source and less number of switches is proposed. Photovoltaic based high power applications needs a multilevel inverter (MLI) with multiple sources to convert DC to AC. Conventional multilevel inverters required large number of capacitors, diodes, power switches and input sources. In order to overcome this drawback,...
This paper presents a novel high gain floating output DC-DC multilevel boost converter. This circuit topology is suitable for fuel cell applications, where input supply voltage is needs to be lift with high conversion ratio. Floating output helps to separate the system from the ground related interference problems. The gain of the floating output DC-DC multilevel converter can be increased by adding...
In this paper a novel single phase advanced multilevel inverter (MLI) with adjustable amplitude of voltage levels is proposed. High frequency single switch along with inductor is used in this proposed multilevel inverter to adjust the amplitude of voltage levels. Low frequency switches are used to generate the required number of levels. The amplitude of voltage levels is adjustable by changing the...
This paper proposes a novel non-isolated high step-up DC-DC converters for photovoltaic applications, where voltage is needs to be step-up without using transformer and coupled inductors. In this paper three novel DC-DC converter topologies are discussed in detail, which are suitable for photovoltaic applications. In this proposed converters, two similar inductors are charges in parallel when switches...
This paper presents a novel non-isolated switched inductor floating output DC-DC multilevel boost converter. Non-isolated high gain DC-DC converters are essential for fuelcell applications to boost the supply voltage with high conversion ratio. Conventional DC-DC boost converter is not suitable for high gain applications because of high voltage stress and high duty cycle. The proposed converter is...
This paper presents a single switch topology of DC-DC multilevel buck-boost converter with very high voltage gain ratio. It is a pulse width modulation (PWM) based multilevel buck-boost converter (MLBBC) consisting of 2N-1 Diodes, 2N-1 capacitors for N level boost converter. The proposed converter topology is a combination of buck-boost converter and cockcroft-walton voltage multiplier. The main advantage...
This paper presents a study on novel high gain switched inductor multilevel buck-boost converter. High gain DC-DC converters are preferred for solar applications to step up the output voltage from PV arrays. Due to the limitation on duty cycle, high gain is not feasible in conventional buck-boost converter. This drawback is overcome by multilevel buck-boost converter using capacitor-diode multiplier...
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