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In this paper, implementation of a virtual resistance controller for DC-DC boost converter Dahono 1 to improve the damping during transient response is proposed. The virtual resistance is developed by using pole placement and root locus techniques to obtain the desired transient response for the converter. The model that considering component non-idealities then established. In order to verify the...
In more electric aircraft (MEA), three phase PFC rectifiers of several kilowatts are required. In this paper, analysis and design of a single stage three phase PFC interleaved half controlled boost converter for aircraft application is presented. The proposed converter uses the voltage follower approach i.e it is operated in Discontinuous Conduction Mode (DCM). This avoids the inner current control...
Renewable energy sources are obviously accepted as clean energy sources of future. The solar energy is the most popular among other renewable energy sources in all over the world. Many studies are performed on photovoltaics (PVs) and solar energy systems. Inverter is the most important power converter section of photovoltaic systems in terms of efficiency in changing weather conditions. This study...
The Non-Conventional sources such as solar energy has been replacement and best exploited electric source. The solar electric power required DC-DC converter for production, controllable and regulation of variable solar electric energy. The single ended boost converter has been replaced by SEPIC converter to overcome the problem associated with DC-DC converter. The problem associated with DC converter...
The renewable energy is becoming moremainstream and accessible. This has been made possible due toan increase in environmental awareness coupled with thepopular demand to cut back on the greenhouse emissions. We inthis project propose a grid connected PV system. The aim of theproject is to implement a complete distributed energy resourcesystem (DER). The project will feature a PV module, which willbe...
The controller of a Conventional Unity Power factor correction (PFC) rectifier needs three feedback signals sensed from the converter, i.e., rectified input voltage, output voltage and input inductor current. Inductor current is sensed using current sensors, which are often expensive. Eliminating current sensors in PFC circuits is a subject of research interest. This paper gives a novel technique...
Applications of the multi-input converters are becoming popular due to their conformity to renewable energy systems. This paper proposes a new topology of double-input boost converters with continuous input current, which is intended to be used for renewable power sources. The topology is derived from two dc-dc converter configurations: boost dc-dc converter and Y-source dc-dc converter. In the proposed...
Diode based bridge rectifiers (AC to DC power converters) are the widely used power supplies. The major drawbacks of the conventional diode bridge rectifiers and thyristor-based rectifiers (nonlinear loads) are low power factor and high current harmonics in AC supply. This paper presents the design of a digital controller for continuous conduction mode boost converter with power factor correction...
In this paper, voltage and power flow controlled parallel DC-DC boost converter is presented. Generally, a parallel converter system consists of a number of converters operating in parallel. The converters may be of DC-to-DC and DC-AC type depending on the nature (i.e. DC and/or AC) of the system. In this paper, the system considered is of DC type and the converters considered are two boost converters,...
This paper presents a comparative study between two control solutions developed for a boost converter. The first one is a P.I. controller developed using a linear model for the converter and implemented in Matlab/Simulink. The second one is a fuzzy controller which takes into account the error between the reference voltage and converter's output and also the integral of this error. Fuzzy controller...
In this paper is presented a new mathematical model for the continuous conduction mode of the boost converter. There are taken into account the medium values for the currents and voltages in order to obtain a model useful for the design process of a controller for this converter. The obtained mathematical model is non-linear and it is linearized such that it permits to design a P.I.D. controller....
This paper presents an efficient thermal energy harvesting IC (EHIC) that supports a battery-less μWatt system-on-chips. The EHIC consists of an inductor-based DC-DC converter that boosts a low input voltage to a suitable output voltage level. Further, a switched capacitor buck converter is utilized to regulate the boost converter output voltage and to support multiple output voltage levels, namely...
In this paper, the main reason why AC electricity was accepted as the form of choice for the modern electric power system is the magnetic transformer. The inability to conveniently change voltage levels became one of the major drawbacks of Edison's early DC system concept. The DC transformer can be a device that, like its AC counterpart, provides lossless transfer of energy between circuits at different...
The properties of silicon carbide (SiC) integrated circuit (IC) processes are discussed and nonlinear-carrier control is proposed as a controller topology that can work within the design challenges presented by SiC. A boost converter with NLC controller is demonstrated using circuit blocks built with SiC IC models.
A ZCS boost converter using two auxiliary switches, for active power factor correction (APFC), is proposed in this paper. All the switching devices used in this converter are turned-on and turned-off at ZCS with minimum current stress. The boost rectifier diode is also operated under soft-switched condition. The boost switch and one of the auxiliary switches have a common drive and are turned on simultaneously...
This paper presents the design of a cost-effective and efficient solar powered irrigation pump utilizing a switched reluctance motor (SRM). It utilizes a simple DC-DC boost converter as a power conditioning stage between SPV array and the motor drive. The control of solar photovoltaic (SPV) array output power at maximum power point (MPP) and facilitating the soft-starting to the SRM drive, are two...
Power quality is one of the key factors in electrical systems and is taken into consideration to meet the demands of the customer. High voltage distribution system (HVDS) is one of the methods to improve quality and reliability of the distribution system. In HVDS, power is transmitted from the distribution station to consumer premises through the booster transformers and voltage regulators. Inrush...
The controller in a pulse-width modulation (PWM) power converter has to stabilize the system and guarantee an almost constant output voltage in spite of the perturbations in the input voltage and output load. The transfer function of the Boost converter with respect to duty cycle is of higher order which makes it difficult to achieve the aforementioned goals. In this paper Model Order Reduction (MOR)...
A recent EV trend is to increase the operating voltage of a propulsion motor to improve the efficiency and performance. To feed a high voltage to motor control unit, it generally employs a front-end bidirectional converter. Because the boosting operation of the converter produces a high output voltage, the converter needs an output capacitor, which has a high working voltage resulted in cost increasing...
This paper describes a method to control a boost converter with LC input filter working under continuous conduction mode. The idea of this method relies on Lyapunov stability criterion. All state variables are controlled in the same times. Therefore, the responses of this controlled system are fast. However, since the output command signal is generated directly from the controller, the switching frequency...
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