This paper describes a new strategy for pulsewidth modulation (PWM) optimized by a direct method and the application of genetic algorithms (GA) to minimize the harmonic content specifically the fifth and seventh harmonic of the total content, based on the minimum total harmonic distortion (THD). Described the development of the method, the guidelines to take into account including the algorithm...

9 www.alliedjournals.com  Abstract— Power quality is a very important issue. Non-linear loads and semi-conductor devices connected to AC electric mains generate unwanted signals (harmonics) in the dynamics of current which are responsible for additional power losses in heat loss and the risk of equipment damage or malfunctioning. In the simulink model of shunt active filter fuzzy logic control...

the harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. this paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. the objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...

The harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. This paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. The objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...

Abstract. In this paper we define and verify a subclass of harmonic univalent functions involving the argument of complex-value functions of the form f = h + ¯g and investigate some properties of this subclass e.g. necessary and sufficient coefficient bounds, extreme points, distortion bounds and Hadamard product.Abstract. In this paper we define and verify a subclass of harmonic univalent func...

Due to their ability to synthesize waveforms with better harmonic spectrum and attain higher voltages, multi-level inverters are receiving increasing attention in the past few years. The multilevel inverter was introduced as a solution to increase the converter operating voltage above the voltage limits of classical semiconductors. In this paper, a Diode Clamped Multilevel Inverter is controlle...

− This paper presents an analysis of Akagi’s pq theory for active filtering under really non-sinusoidal voltage. So, it is ascertained that compensating of alternative parts of instantaneous active and reactive powers establishes a sinusoidal current in the parallel active filter. But this is true under sinusoidal voltage only. The mathematical demonstration is found and it is verified on few p...

In this paper a single-inductor dual-output (SIDO) buck-boost PFC converter operating in critical conduction mode (CRM) is proposed. By multiplexing a single inductor, each output of SIDO buck-boost converter can be regulated independently. Compared with conventional two-stage multiple output converter, SIDO buck-boost PFC converter benefits from significant overall cost saving, small size and ...

Design techniques for low-voltage analog TUters In CMOS technologies are discussed. The use of OTA-C implementation techniques towards low power supply voltages (3 V and below) requires special source degeneration and input signal folding techniques. Firstly, design techniques to achieve Pull CMOS continuous-time filters with low distortlon (Total harmonic distortion c -50 dB) and low power sup...

Abstract  In this paper a new estimator for the measurement of the rms value of a noncoherent sampled sine-wave is proposed. The key feature of this estimator is that the sine-wave offset, a priori estimated, is removed from the sine-wave. A formula used to estimate the sinewave offset is also given in the paper. It has been proved by means of computer simulations and experimental results that...