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Power Systems

What is Nyquist Criteria ?

What is Nyquist Criteria ? Nyquist Stability Criterion Definition The Nyquist stability criterion is defined as a graphical technique used in control engineering to determine the stability of a dynamical system. Application of Nyquist Criterion It applies to open-loop systems and can handle transfer

By Encyclopedia 08/02, 2024
Power Systems

What is a SCADA System?

What is a SCADA System? SCADA Definition SCADA is defined as Supervisory Control and Data Acquisition, a system used for high-level process control and data management. Component Master Terminal Unit (MTU) Remote Terminal Unit (RTU) Communication Network (defined by its network topology) Functions T

By Encyclopedia 08/02, 2024
Power Systems

What is Steady State Error?

What is Steady State Error? Steady State Error Defined Steady state error is the discrepancy between a control system’s desired and actual output values once the output has stabilized. Influence of Input Types The size of the steady state error varies with different types of inputs—zero for step inp

By Encyclopedia 08/02, 2024
Power Systems

What is a Transfer Function?

What is a Transfer Function? DC Gain Definition DC gain is the ratio of the steady-state output to the steady-state input of a control system when given a step input. Transfer Function A transfer function represents the relationship between a control system’s input and output using the Laplace trans

By Encyclopedia 08/02, 2024
Power Systems

What is Rise Time?

What is Rise Time? Rise Time Definition Rise time is defined as the duration it takes for a signal to increase from 10% to 90% of its steady value, indicating how quickly a signal changes. Rise Time Formula The rise time formula varies based on the system type. Calculation Method To calculate rise t

By Encyclopedia 08/02, 2024
Power Systems

Trigonometric Fourier Series

We have already discussed the Fourier series in exponential form. In this article we will discuss another form of Fourier series i.e. Trigonometric Fourier series . Fourier series representation in Trigonometric form Fourier series in trigonometric form can be easily derived from its exponential for

By Electrical4u 03/29, 2024
Power Systems

Analysis of Exponential Fourier Series

Fourier Series at a Glance A continuous time signal x(t) is said to be periodic if there is a positive non-zero value of T for which As we know any periodic signal can be classified into harmonically related sinusoids or complex exponential, provided it satisfies the Dirichlet’s Conditions . This de

By Electrical4u 03/29, 2024
Power Systems

Fourier Series and Fourier Transform

Sometimes all the information in time domain is not sufficient. This makes us to move to frequency domain of the signal for extracting more information about the signal. This movement from one domain to other domain is known as transformation. For changing the domain of signal from time to frequency

By Electrical4u 03/29, 2024
Power Systems

Time Domain Analysis of Control System

In a control system , there may be some energy storing elements attached to it. Energy storing elements are generally inductors and capacitors in case of an electrical system. Due to the presence of these energy storing elements, if the energy state of the system is disturbed, it will take a certain

By Electrical4u 03/29, 2024
Power Systems

Nichols Chart: What is it?

What is a Nichols Chart? A Nichols Chart (also known as a Nichols Plot) is a plot used in signal processing and control system design to determine the stability and closed-loop frequency response of a feedback system. The Nichols chart is named after its founder, Nathaniel B. Nichols . How Does A Ni

By Electrical4u 03/29, 2024
Power Systems

Laplace Transform Table, Formula, Examples & Properties

Laplace transformation is a technique for solving differential equations. Here differential equation of time domain form is first transformed to algebraic equation of frequency domain form. After solving the algebraic equation in frequency domain, the result then is finally transformed to time domai

By Electrical4u 03/29, 2024
Power Systems

Nyquist Plot: What is it? (And How To Draw One)

What is a Nyquist Plot? A Nyquist plot (or Nyquist Diagram ) is a frequency response plot used in control engineering and signal processing . Nyquist plots are commonly used to assess the stability of a control system with feedback. In Cartesian coordinates, the real part of the transfer function is

By Electrical4u 03/29, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

All

What is Nyquist Criteria ?

What is a SCADA System?

What is Steady State Error?

What is a Transfer Function?

What is Rise Time?

Trigonometric Fourier Series

Analysis of Exponential Fourier Series

Fourier Series and Fourier Transform

Time Domain Analysis of Control System

Nichols Chart: What is it?

Laplace Transform Table, Formula, Examples & Properties

Nyquist Plot: What is it? (And How To Draw One)

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