EXP4: Tie Line Scheduling
... power production under normal conditions of operation. For the purpose of controlling the entire interconnected system, the system will be divided into control areas. which usually conform to the boundaries of one or more companies. The net interchange of power over the tie lines is the algebraic di ...
... power production under normal conditions of operation. For the purpose of controlling the entire interconnected system, the system will be divided into control areas. which usually conform to the boundaries of one or more companies. The net interchange of power over the tie lines is the algebraic di ...
lab sheet - Faculty of Engineering
... due to reactance from capacitance Cc, Ce and stray capacitance between the leads of the transistor. Thus to have a reasonable gain at higher frequency, we could increase the value of RL, the parallel resistance of the RLC tank network or increase the transconductance gm. Usually RL is fixed, as it i ...
... due to reactance from capacitance Cc, Ce and stray capacitance between the leads of the transistor. Thus to have a reasonable gain at higher frequency, we could increase the value of RL, the parallel resistance of the RLC tank network or increase the transconductance gm. Usually RL is fixed, as it i ...
A 2-V 2-GHz BJT Variable Frequency Oscillator - Solid
... ARIABLE-frequency oscillators (VFO’s) phase locked to a low-frequency clean reference are commonly used as local oscillators in the radio-frequency wireless transceivers. The VFO’s are required to 1) exhibit low internal phase noise for easy optimization for the phase-locked loops; 2) consume little ...
... ARIABLE-frequency oscillators (VFO’s) phase locked to a low-frequency clean reference are commonly used as local oscillators in the radio-frequency wireless transceivers. The VFO’s are required to 1) exhibit low internal phase noise for easy optimization for the phase-locked loops; 2) consume little ...
lab sheet - Faculty of Engineering
... due to reactance from capacitance Cc, Ce and stray capacitance between the leads of the transistor. Thus to have a reasonable gain at higher frequency, we could increase the value of RL, the parallel resistance of the RLC tank network or increase the transconductance gm. Usually RL is fixed, as it i ...
... due to reactance from capacitance Cc, Ce and stray capacitance between the leads of the transistor. Thus to have a reasonable gain at higher frequency, we could increase the value of RL, the parallel resistance of the RLC tank network or increase the transconductance gm. Usually RL is fixed, as it i ...
Phase-Locked Loops for Grid-Tied Inverters
... capable of islanded operation. PLLs must be able to cope in such situations, even if they are only used to detect islanding and respond accordingly. In [10, 11] a positive frequency feedback model was proposed to predict the frequency behaviours grid-connected voltage source inverters (VSI). [10, Fu ...
... capable of islanded operation. PLLs must be able to cope in such situations, even if they are only used to detect islanding and respond accordingly. In [10, 11] a positive frequency feedback model was proposed to predict the frequency behaviours grid-connected voltage source inverters (VSI). [10, Fu ...
Chirp spectrum
The spectrum of a chirp pulse describes its characteristics in terms of its frequency components. This frequency-domain representation is an alternative to the more familiar time-domain waveform, and the two versions are mathematically related by the Fourier transform. The spectrum is of particular interest when pulses are subject to signal processing. For example, when a chirp pulse is compressed by its matched filter, the resulting waveform contains not only a main narrow pulse but, also, a variety of unwanted artifacts many of which are directly attributable to features in the chirp's spectral characteristics. The simplest way to derive the spectrum of a chirp, now computers are widely available, is to sample the time-domain waveform at a frequency well above the Nyquist limit and call up an FFT algorithm to obtain the desired result. As this approach was not an option for the early designers, they resorted to analytic analysis, where possible, or to graphical or approximation methods, otherwise. These early methods still remain helpful, however, as they give additional insight into the behavior and properties of chirps.