Foreword Contents of Chapters Biographies Bibliography Acknowledgement Appendix Index of Topics Links


Edited by Aysen Arsoy, S. Mark Halpin, Yilu Liu, Paulo F. Ribeiro ( Leading CD Editor)









Foreword      Contents of Chapters      Biographies      Bibliography      Acknowledgment      Appendix      Index of Topics      Links

                                A. Harmonic Simulation Software
                                                     A.1. SuperHarm (Demo) with TOP
                                                     A.2. PCFLOH
                                B. Step by Step Example of A Simple Harmonic Study
                                C. Data For Test Systems
                                D. Tutorial Chapters in IEEE Format (in PDF)          



Two software tools, a demo version of SuperHarm with the full version of The Output Processor (TOP) and PCFLOH are provided here to illustrate harmonic concept with the sample cases given within the program and allow a user to create his/her own data and run the new case. To do so, the user should find the directory of "Software" in the CD-ROM, then copy this directory to a directory that he/she will create in his/her computer. The "Software" directory has two subdirectories named "PCFLO" and "SuperHarm." Further instructions are given for each program below.

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A demo version of SuperHarm can be used to run simple examples for harmonic analysis. In order to view the output results graphically, the full version of TOP is also provided.


Instructions for SuperHarm and TOP

Once you copy the "SuperHarm" subdirectory from the CD-ROM to a new directory in your computer, you will see two subdirectories under "SuperHarm", namely "SuprHarm" and "top."

Click Setup.EXE under "SuprHarm" to install the SuperHarm software.

Follow the directions given in the setup procedure.

After the software is installed properly, the help menu in the program should be used to get started and to run a sample case in the program.

In order to install the TOP software, click "Setup. EXE" under "top," then follow the setup instructions.

Click here to see the TOP manual in PDF.

Make sure you restart your computer after the installation process is completed.

This program is provided by Erich W. Gunther and  Mark F. McGranaghan at  Electrotek.

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PCFLO, V5.2 (Windows 95), is a PC-based program that performs loadflow, short circuit, and harmonics analyses. PCFLO (500 bus version) contains a simple dialog box where you specify the path and extension of the input files. PCFLOH is a 500 bus version, tailor-made for harmonics studies.


Instructions for PCFLOH

Copy the "PCFLO" subdirectory under "Software" from the CD-ROM to your computer.

Click PCFLOH.EXE under PCFLO, a version of PCFLO with special harmonic interface screen

In PCFLOH Step 1, click CHECK INPUT and CHECK OUTPUT. If your PCFLO directory is under the C drive, then it will automatically load the example data. Otherwise, a correct path and/or data file should be entered in the entry boxes.

In Step 2,3,4, consecutively, click CONTINUE. Watch the program message box at the top right for abbreviated instructions.

In Step 5, you can view the linear and nonlinear loads at individual busses. When ready click CONTINUE TO STEP 6.

In Step 6, click SOLVE.

Once the case solves, click any busses shown in the list on the right to see its voltage waveform and spectrum. Click on Current I to repeat this for branch currents. Waveforms are shown in the background.

For more detailed information, click  User manual 1,    User manual 2.

This program is provided by Dr. Mack Grady


Any questions/comments should be directed to the authors who provided the software. You can send them email by clicking on the author's name where it says "This program is provided by -Author-. Editors are not responsible for any bugs/errors that may be encountered in these programs.

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Here, you will find a simple harmonic study example based on a two bus system . In this example, the solution to the harmonic analysis of the sample case is given step by step. Click here to see the example in PDF format.

This case study is provided by C. J. Hatziadoniu

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Three example test systems are provided for harmonics modeling and simulation. In order to access the data for each test system, click on the file names given below the test systems

Test System 1: A 14-Bus Balanced Utility Transmission System




Test System 2: A 13-Bus Unbalanced Utility Distribution System





Test System 3: A 13-Bus Balanced Industrial Distribution System


The data is provided by Dr. Wilsun Xu

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The chapters of the original tutorial are written in IEEE format. These chapters can be viewed or printed from Adobe Acrobat Reader. If you would like to do so, please click on one of the following items that you are interested in.

An Overview of Harmonics Modeling and Simulation (Chapter 1)

Harmonics Theory (Chapter 2)

Modeling of Harmonic Sources- Power Electronic Converters (Chapter 3)

Modeling of Harmonic Sources- Magnetic Core Saturation (Chapter 4)

Harmonic Modeling of Networks (Chapter 5)

Distribution System Harmonic Filter Planning

Frequency- Domain Harmonic Analysis Method (Chapter 6)

Time- Domain Methods for the Calculation of Harmonic Propagation and Distortion (Chapter 7)

Analysis of Unbalanced Harmonic Propagation in Multiphase Power Systems (Chapter 8)

Harmonic Limit Compliance Evaluations Using IEEE 519-1992 (Chapter 9)

Test Systems for Harmonics Modeling and Simulation (Chapter 10)

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