Power Engineering I : Intro to Power Analysis in AC Systems

Name: Power Engineering I : Intro to Power Analysis in AC Systems
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Power Engineering Introduction: Mastering AC Circuits for Electrical Success

Created byAfterclap Team

Last updated 8/2023

English

What you'll learn

Understand the fundamental principles of power generation, transmission, and distribution.
Analyze power system parameters and perform simple calculations for power flow and losses.
Recognize the significance of power quality and methods to improve it in electrical networks.
Understand the principles of AC circuits, including voltage, current, impedance, and phase relationships.
Calculate power and power factor in AC circuits, and explore methods to improve power factor.

Course content

8 sections • 40 lectures • 4h 55m total length

Introduction with Instantaneous Power2:48

A word on average power - introduction2:54
Instantaneous and Average Power in Detail - Calculations, Origin, the Idea20:50
Explore instantaneous power p(t)=v(t)i(t) and the average power over a period, with the average expressed as 1/2 Vm Im cos(theta_v minus theta_i).
Example - Instantaneous and Average Power - Difficulty Level : 1/54:23
Example 2 - Instantaneous and Average Power - Difficulty Level : 1/55:04
Solve an example of instantaneous and average power in AC circuits by converting current to cosine form with phasors and multiplying voltage and current to obtain 3500 W average power.
Example 3 - Instantaneous and Average Power - Difficulty Level : 2/54:22
Compute instantaneous and average power for a 30 - j70 ohm impedance driven by 120 V, using phasor form and P = 1/2 VI cos(phi) to obtain 37.24 W.
Example 4 - Instantaneous and Average Power - Difficulty Level : 2/52:33
Example 5 - Instantaneous and Average Power - Difficulty Level : 2.5/55:44
Calculate instantaneous and average power in an ac circuit, showing resistors observe average power while inductors and capacitors store energy, using total impedance and current.
Example 6 - Instantaneous and Average Power - Difficulty Level : 2.5/55:05
Example 7 - Instantaneous and Average Power - Difficulty Level : 3.5/59:26
Example 8 - Instantaneous and Average Power - Difficulty Level : 3.7/57:45

A word on Maximum Power Transfer3:13
Master maximum average power transfer in ac circuits by matching the load impedance to the source impedance, achieving efficient energy transfer through Norton’s theorem.
Maximum Average Power Transfer Explained, the most efficient way16:10
Example 1 - Maximum Average Power Transfer - Difficulty Level : 3/59:39
Example 2 - Maximum Average Power Transfer - Difficulty Level : 3/56:51
Example 3 - Maximum Average Power Transfer - Difficulty Level : 3.7/57:12
Example 4 - Maximum Average Power Transfer - Difficulty Level : 3.7/58:12

A word on RMS values2:52
What is effective value (RMS) ?12:53
Example 1 - Effective (RMS) Value - Difficulty Level : 3/56:55
Example 2 - Effective (RMS) Value - Difficulty Level : 3/57:33
Example 3 - Effective (RMS) Value - Difficulty Level : 3.5/55:29
Example 4 - Effective (RMS) Value - Difficulty Level : 3.5/54:56
Compute rms value of a full-wave rectified sine with V(t)=100 sin t and period pi, and determine average power in 6 ohm resistor, yielding 70.71 V and 833.33 W.

What is Complex Power? How do we put everything in one equation?12:35
Example 1 - Complex Power (Difficulty Level : 1.5/5)5:52
Learn to compute complex power from load voltage and current using rms values and conjugates, then derive apparent power, real and reactive power, power factor, and load impedance.
Example 2 - Complex Power (Difficulty Level : 2/5)4:15
Analyze a complex power example using rms values and conjugates to determine the real power, reactive power, apparent power, power factor, and the load impedance.
Example 3 - Complex Power (Difficulty Level : 2/5)6:04
Analyze complex power from 12 kVA at a 0.856 power factor, derive real and reactive components and the phase angle, then compute rms current, peak current, and impedance.
Example 4 - Complex Power (Difficulty Level : 2.5/5)4:58

Conservation of AC Power - Proof that power is being conserved in AC Systems10:23
Explore how real and reactive power are conserved in AC circuits, while apparent power is not, through series and parallel analyses of complex power.
Example 1 - Conservation of AC Power (Difficulty : 2/5)8:08
Solve a conservation of ac power example by calculating total impedance, current, and the real and reactive powers of source, line, and load.
Example 2 - Conservation of AC Power (Difficulty : 2/5)11:06
Example 3- Conservation of AC Power (Difficulty : 2/5)6:25
This video demonstrates conservation of AC power for parallel impedances z1 and z2, calculating total apparent, real and reactive power, and source power factor using complex power analysis.
Example 4 - Conservation of AC Power (Difficulty : 2/5)7:49

Requirements

A little background on AC Circuits.

Description

Welcome to the comprehensive world of Power Engineering Introduction, where you will embark on an enlightening journey into the fascinating realm of AC Circuits. In this course, you will gain the essential background and knowledge required to understand the fundamental principles that govern power in AC Circuits, a cornerstone of electrical engineering.

Through engaging lectures, interactive exercises, and real-world examples, you will delve deep into the intricacies of AC circuits, exploring voltage, current, impedance, phase relationships, and more. You will learn how to apply Ohm's law and Kirchhoff's laws to analyze and solve complex AC circuit problems confidently.

The course will equip you with practical skills to calculate power and power factor in AC circuits, and explore methods to enhance power factor, optimizing energy efficiency in electrical systems. Additionally, you will differentiate between series and parallel AC circuits, mastering techniques to determine equivalent impedance and comprehend their diverse applications in real-world scenarios.

As you progress, you will uncover the intriguing concept of resonance in AC circuits, understanding its profound implications on circuit behavior. Moreover, you will gain insight into three-phase AC systems and their advantages in power transmission, a vital aspect of modern power engineering.

This course is designed for a diverse audience, including electrical engineering students, recent graduates, entry-level engineers, electricians, technicians, renewable energy enthusiasts, and non-technical professionals in the energy sector. Whether you are new to the field or seeking to expand your expertise, this course will empower you with the knowledge and confidence to tackle the challenges of power engineering in AC circuits.

Get ready to amplify your understanding of AC circuits and open the doors to exciting opportunities in the dynamic world of power engineering. Enroll now and embark on a journey that will illuminate your path to electrical success!

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For this you may find the contact information on instructor profile.

Sincerely,

kavcar

Who this course is for:

Electrical Engineering Students: This course is designed for undergraduate students pursuing degrees in electrical engineering or related fields. It provides a solid foundation in power engineering principles and AC circuits, essential for their academic and future professional success.
Recent Graduates and Entry-Level Engineers: Graduates and early-career engineers seeking to enter the power industry will benefit from this course. It equips them with practical knowledge and skills in AC circuits, preparing them for engineering roles in power generation, transmission, and distribution.
Professionals Transitioning to Power Engineering: Professionals from other engineering disciplines or technical backgrounds who want to shift their careers towards power engineering will find this course valuable. It offers them a comprehensive introduction to the core concepts of AC circuits and their applications in power systems.
Electricians and Technicians: Electricians and technicians working in the electrical industry can enhance their expertise by enrolling in this course. It covers the theoretical aspects of AC circuits, enabling them to better understand electrical systems and troubleshoot complex issues.

Power Engineering I : Intro to Power Analysis in AC Systems

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 3min

Instantaneous and Average Power10 lectures • 1hr 8min

Maximum Power Transfer6 lectures • 51min

Effective or RMS Values (must learn)6 lectures • 41min

Apparent Power and Power Factor5 lectures • 38min

Complex Power - The Secret of AC Power Analysis5 lectures • 34min

Conservation of AC Power5 lectures • 44min

Power Factor Correction2 lectures • 18min

Requirements

Description

Who this course is for: