Transient Voltage Suppressors

Backward/ forward sweep algorithm for three-phase load-flow analysis of radial distribution systems. In the backward sweep, Kirchhoff's Current Law and Kirchhoff's Voltage Law are used to calculate the upstream bus voltage of each line or a transformer branch. In the forward sweep, the voltage at...

The model simulates a three phase Sinusoidal PWM rectifier. Applied Voltage, switching frequency and sampling factor can be changed from the model properties block.

PV panel is modeled from the equivalent circuit of PV cells in series and parallel. Each panel is designed with Short circuit current 1 Amp and Open circuit voltage (36x0.54 =) 19.44 Volts at 1000w/sqm, Enter Nos. of such panel to configure in series Ns and sets of panels in parallel Np (Pmp=13.7...


Platforms: Matlab

The electromagnetic torque motors are widely used in electrohydraulic servovalves. They serve to convert the control current into a proportional torque. For more details about the steady state and transient response calculation, please refer to my book:Galal Rabie, Fluid Power Engineering,...


Platforms: Matlab

Given a set of customer requirements, design a suitable DC/DC converter.Project includes full derivation of control transfer functions, simulink model.Design Spec:Voltage input200-650 VDCVoltage output28VDC, regulatedFull load power300WMinimums load20% of full loadRipple voltage?100mV at full...


Platforms: Matlab

This model simulates three phase inverter. Sawtooth waveform has been used as the carrier. Triplen of level 1/6 of reference were injected in the reference to utilize the maximum DC link voltage. The output voltage range increases by injecting the triplen harmonics in the reference provided that...


Platforms: Matlab

The model simulates buck converter using different approaches. Parameters can be change from the initializing callback function in the model properties. First circuit implements buck using a MOSFET and diode, second implements using two MOSFETs and third implements using the model equation. Power...


Platforms: Matlab

The electrohydraulic servovalves are mostly multi-stage. They incorporate, mostly, a first stage which serves to convert the command current into a proportional pressure difference. For more details about the steady state and transient response calculation, please refer to my book:M Galal Rabie,...


Platforms: Matlab

The advantages of vector control provide variety of control choices in the PMSM drives. The simplest control strategy is the Zero d_axis current control (Constant Torque Operation) which is implemented in this model. The transient responses of torque, speed and 3-phase motor current are simulated.


Platforms: Matlab

This software has been realized by Bret Fortenberry at the CNS Technology Lab at Boston University (http://techlab.bu.edu/). A model to show the properties of EPSPs and IPSPs in the postsynaptic cell. The model allows a user to adjust the number of EPSP and IPSP inputs, the rise and fall times...


Platforms: Matlab

This is a Simulink Model Code of a guinea-pig ventricular action potential published byFaber GM, Silva J, Livshitz L, Rudy Y. Kinetic properties of the cardiac L-type Ca2+ channel and its role in myocyte electrophysiology: a theoretical investigation.Biophys J. 2007 92:1522-1543.The action...


Platforms: Matlab

This project aims to demonstrate speed control of aDC series motor. It involves the use of armature voltage control,to control the speed of the motor. The speed of the motor iscontrolled for a typical speed profile of a washing machine. ThePID controller of the motor is optimized for a good...


Platforms: Matlab

The model simulates buck converter using different approaches. Parameters can be change from the initializing callback function in the model properties. First circuit implements buck using a MOSFET and diode, second implements using two MOSFETs and third implements using the model equation. Power...


Platforms: Matlab

A dc dc converter is modeled that can operate in 2 quadrants. It is similar to the bipolar converter with a slight difference in PWM algorithm


Platforms: Matlab

this is three phase PLL easily get locked to fundamental component of voltage even in presence of harmonics.please check notation used for q & d vector...its bit different then conventional..


Platforms: Matlab

Three H bridges are used with three unequal distributed DC sources (1:3:9). Embedded Matlab function is used to generate switching pulse for generating 230V, 50Hz. The model can be used for the applications like drives, inverter etc.,


Platforms: Matlab

This MATLAB(R) script generates a real time plot of voltage values collected from an Agilent(TM) 34401A Digital Multimeter over the serial port(RS232). The data is collected and plotted until the predefined stop time is reached. This example also demonstrates automating a query based interaction...


Platforms: Matlab

Various quantities related to the thyristor and power system is illustrated here.Some very basic questions like how to change the firing angle of the thyristor, how to measure the voltage waveform..etc are answered here.Firing angle: THis is changed with the help of pulse generator. The input...


Platforms: Matlab

It is designed to generate ac output of 27 levels/ phase. Three H bridges are used with three unequal distributed DC sources (1:3:9). "A" represents the no. of level in the output and "F" indicates the output frequency. Sinusoidal PWM used to vary the output voltage and frequency. So the model...


Platforms: Matlab

Dynamic simulation of a transformer start of an asynchronous motor. The transformer tap can be chosen in the model. The switching from the transformer tap to the full voltage is done manually with a switch in the model. Visible are stator current, speed, motor torque and load torque


Platforms: Matlab