This paper presents the supercapacitor power management method for the Hybrid Electricals Vehicles.A simple zero-voltage switching(ZVS) interleaved boost power factor correction(PFC) AC/DC converter is used to charge the traction battery of an Hybrid Electrical Vehicle. The auxiliary circuit provides limited current to charge and discharge the MOSFETs output capacitors during turn-On times at z...

This paper proposed an improved phase disposition pulse width modulation (PDPWM) for a modular multilevel inverter which is used for Photovoltaic grid connection. This new modulation method is based on selective virtual loop mapping, to achieve dynamic capacitor voltage balance without the help of an extra compensation signal. The concept of virtual submodule (VSM) is first established, and by ...

In ACIDCIAC power conversion, the connection of a Multi Point Clamped (MPC) rectifier with an MPC inverter simplifies the balancing of the voltages on the series-connected DC link capacitors as well as giving input power-factor correction capability. This is only true provided that an alternative balancing PWM control strategy is adopted instead of the standard PWM one. A control strategy is pr...

Wind is the world’s fastest growing energy source today. During normal operation, the wind generating systems have large fluctuations due to sudden wind speed changes. The Possible solution for this problem is to use hybrid energy storage management. Thus the performance of this system can be improved by using battery as well as super capacitor which is integrated with wind turbine generators. ...

* อาจารย์ประจําสาขาวิชาเทคโนโลยีอิเล็กทรอนิกส์ คณะเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยราชภัฏสวนสุนันทา AbstractThis article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on current controlled current conveyor transconductance amplifier (CCCCTA). The fe...

Reactive power planning is an optimization problem. Solving this problem requires finding an optimal solution that minimizes an objective function while satisfying certain constraints. This paper proposes an approach for optimum reactive power dispatch throughout the power network, using the Genetic Algorithms (GA). Varying the crossover probability rate Pc and mutation probability rate Pm, the...

High speed Full-Adder (FA) module is an important element in designing high performance arithmetic circuits. In this paper, I propose a high speed multiple-valued logic FA module. The proposed FA is designed and constructed with the use of 3 capacitors and 14 transistors, wh e r e t h e t r a n s i s t or s a r e c o n s t r u c t e d b y carbon nano-tube field effect transistor (CNFET) technol...

The novel current-tunable voltage-mode universal biquad filter and sinusoidal quadrature oscillator using only two current-controlled current differencing buffered amplifiers (CCCDBAs) and two capacitors without external passive resistors have been presented. The first proposed filter realizes all the five standard types of the biquadratic functions and provides independent electronic tuning of...

Oversampling techniques based on sigma-delta (Σ∆) modulation offer numerous advantages for the realization of high-resolution analog-to-digital (A/D) converters in a low-voltage environment. This paper examines the design and implementation of a CMOS Σ∆ modulator for digital-audio A/D conversion that operates from a single 1.8-V power supply. A cascaded modulator that maintains a large full-sca...

Biological membranes are capacitors that can be charged by applying an electric field across the membrane. The charges on the capacitor exert a force on the membrane that leads to electrostriction, i.e., a thinning of the membrane. This effect is especially strong close to chain melting transitions. A consequence is voltage induced pore formation in the lipid membrane. Since the force is quadra...