The paper presents the new C-type high harmonic power filter design process whose aim is the reduction of total harmonic distortion in an industrial power supply system. A new method for C-type filter design is proposed and an example of the method application to an industrial plant is provided. The basis for the new algorithm is assuming, at the design phase, the required distribution of the h...

Harmonic resonance is one of an important aspect being considered in a large network such as a wind power plant (WPP). This paper analyses several factors that affect resonance characteristic in a WPP and possible mitigation measures. The first part of the paper provides an analysis of resonances in WPP. Two methods of identifying resonances are performed which are a common impedance scan metho...

a new output structure for class e power amplifier (pa) is proposed in this paper. a series lc resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. this resonator causes low impedance at the second harmonic. the output circuit is designed to shape the switch voltage of the class e amplifier and lower the voltage stress of the transistor. t...

The installation of a harmonic cavity to provide bunch lengthening and thereby increase the Touschek lifetime is considered for the ESRF storage ring. Simulations with a particle tracking code have shown that for few bunch operation where the current per bunch is large – a strong lengthening already results from the coupling with the broad band impedance of the vacuum chamber. Therefore the net...

scanning impedance microscopy (sim) is one of the novel scanning probe microscopy (spm) techniques, which has been developed to taking image from sample surface, providing quantitative information with high lateral resolution on the interface capacitance, and investigating the local capacitance–voltage (c–v) behavior of the interface and ac transport properties. the sim is an ordinary afm equip...

This paper presents a new method to classify and identify high impedance faults in radial distribution system. The proposed methodology uses extreme learning machine (ELM) as a classifier for identifying the high impedance arc-type faults. The network is learned by data from simulation of a simple radial system under different fault and system conditions. Magnitudes of third and fifth harmonic ...

Coupled electro-thermal simulations are performed to demonstrate predictive design of microwave devices. These simulations are based on an original, fully physical, thermal impedance matrix approach, capable of describing 'nearly exactly' time-dependent heat flow in complex 3-dimensional systems, whilst requiring no model reduction for electro-thermal CAD. This thermal model is validated by the...

Abstract— A Fourier analysis of on-chip signals in CMOS integrated circuits is presented in this paper. It is demonstrated that on-chip signals can be approximated by a Fourier series up to the th harmonic component. The effective load impedance characterizing a distributed RC and RLC line driven by a CMOS logic gate is based on a Fourier analysis of the on-chip signals. The voltage waveform ba...

Harmonic number Frequency Number of klystrons Power per klystron Number of five-cell cavities (aluminum) Shunt impedance per unit length Total shunt impedance Rst Natural bunch length (uz) Momentum compaction factor Current per beam Luminosity Synchrotron radiation loss per turn Parasitic mode energy loss per turn* Peak cavity voltage VP** Total RF power Fundamental mode cavity dissipation PC S...

We consider the problem of determining either the surface impedance λ = λ(x) or surface conductivity η = η(x) from far field data corresponding to time-harmonic incident plane waves scattered by a coated infinite cylinder. We show that λ and η are uniquely determined from the far field data and provide a numerical algorithm for determining these quantities.