Analysis of Transients in Power Systems

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Course Overview

NOTE: Due to COVID-19, the originally scheduled in-person offering of this course (September 21-25, 2020) has been reformatted to an online version. Click "View Details" box under "Upcoming Dates" for the online course schedule. If you are registered for the in-person offering of this course, we will contact you by email, notifying you of action needed.

Why do power system disturbances occur? How do you find the culprit of transient events? Can you analyze the complexities of the electric power system?

Learn to predict the outcome of transient events on power systems.  Construct model power systems, apply transient events, and analyze the power system effects.  Design mitigation options and compare effectiveness of the options.

If you are familiar with power systems, you will benefit. The case study approach introduces the various families of transients. It will also develop an in-depth understanding of the phenomenon. If you have a more detailed transients background, you will expand your knowledge. Participate in exercises using the tool EMTP™. Attendees will receive time-limited access to the current version of EMTP™.

Course highlights:

  • Introduction to the modeling tools for power systems analysis
  • Introduction to EMTP™ using example case studies
  • Power system stability studies and electromechanical oscillations
  • Insulation coordination of a 230 kV transmission system
  • Analysis of unbalanced systems
  • HVDC systems
  • Renewable energy studies
  • Circuit Breaker modeling & Practical Statistical and parametric studies

 Prior experience with EMTP is not required.

Who Should Attend?

Engineering personnel familiar with the basics of electric power system analysis who need to get more in-depth knowledge of the analysis and simulation of power system transients in areas including:

  • Insulation coordination of HV substations and transmission lines
  • Rotating machines dynamics
  • Application of power electronics and associated controls in power systems
  • HVDC and FACTS equipment
  • Distribution system and power quality studies
  • Wind power generation and interface issues

Course Outline

Theoretical Backgrounds on Power Systems and Transients

  • Mathematical representation of power systems
  • Power transmission concepts

Introduction to Power Systems Analysis and Modeling Tools

  • Short circuit and harmonic analysis
  • Time domain methods
  • The range of problems and frequencies: lightning, switching, and temporary overvoltages; electromechanical transients
  • What EMTP™ can do

Introduction to EMTP™ and EMTP Works Using Examples

  • Overview: devices, pins, and signals
  • Power and control devices
  • Basic scripting techniques
  • Transients due to fault: simple and complex modeling
  • Capacitor switching
  • Inrush
  • Ferroresonance

EMTP™ Simulation Options

  • Load flow, steady-state analysis, and initialization
  • Time-domain computations
  • Solution of nonlinear devices

Creation and Maintenance of Subnetworks

  • Subnetwork uniqueness, masking, hierarchy
  • Symbol editor
  • Password protection

Creation and Maintenance of Libraries

  • Available libraries
  • Searching for devices

Simulation of Control Systems

  • Measuring devices: power, voltage, current
  • Periodic meters, transformation functions
  • User-defined modeling
  • Examples: mean-value model, measuring power with variable frequency, variable inductance mode

Switching Device Models

  • Simulation of power electronics devices
  • Power converters and switching devices

Transmission/Distribution Line and Cable Models

  • Theory and available models
  • Pi-section, constant parameter model, frequency dependent models
  • Corona model
  • Application examples

Three-Phase Power-Flow

  • Methodology and setup options
  • Initialization

Transformer Models

The Study of a Complete System

  • From load-flow to steady-state to time-domain
  • Switching transients
  • Temporary overvoltages

Power System Stability Studies: Electromechanical Oscillations

  • Exciter, governor and stabilizer models
  • Load model designs and applications
  • Transmission case study
  • Synchronous machine synchronization

Statistical Analysis Methods and Parametric Studies

Wind Plant Modeling

  • Grid integration studies
  • Protection studies
  • Control optimization
  • Synchronous vs. asynchronous machine models

Steady State Analysis of Unbalanced Distribution Systems

  • Quick overview of distribution systems
  • Multiphase load flow, short circuit, and fault flow
  • Study of IEEE distribution test feeders and assessment of errors due to topological assumptions

DG Integration Studies: Solar Panels

  • Circuit-based models and average models
  • Protection strategies
  • Control options
  • Impact studies: harmonics, voltage stability, transients, short circuit contribution
  • Interaction with network protectors in grid and isolated network configurations

HVDC Transmission Modeling

  • Voltage-source vs. current-source converters
  • Overview of Modular Multilevel Converters (MMC)
  • Control system modeling

Insulation Coordination Principles

  • Voltage stresses within the system
  • Power frequency insulation and pollution
  • Lightning, switching, and temporary overvoltages
  • Lightning arrester selection
  • Insulation coordination methodologies

Insulation Coordination of a 230 kV Transmission System

  • System setup
  • Power-flow and steady-state stability of the system
  • Statistical switching studies and line insulation
  • Temporary overvoltages, usage of line arresters and reclosing resistors
  • Ferroresonance and harmonic resonance
  • Lightning protection of substations

Practical Power System Studies

  • Insulation coordination of a 230 kV GIS
  • Transformer and capacitor bank switching
  • Temporary overvoltage cases - load rejection, self-
  • excitation, etc.
  • TRV studies
  • Breaker failure analysis with detailed arc model


"Great course in general! Jean and Doug did a great job! This class is extremely beneficial to any engineer running transient analysis studies."
–Kevin T., PowerStudies, Inc.

"It’s good to learn from the leading experts on complicated transient subjects."
–Michael T., Chevron


Douglas Mader

Doug Mader received his education at the Technical University of Nova Scotia (now part of Dalhousie University) where he received his Bachelors Degree in Electrical Engineering with Distinction in 1973. He began his career at the Nova Scotia Power Corporation upon graduation and gained his Professional Engineer status in 1975. During his career at NSPC he rose to the position of Vice President Engineering of NS Power Services, the unregulated consulting subsidiary of Nova Scotia Power. He moved to Entergy Transmission Business in June of 1998 as Director Value Engineering, and in 2000 took over responsibility for all Transmission Business Engineering, Project Management, and Construction functions. In January of 2004 he was appointed Director, Technology Delivery and Business Unit CIO for Entergy transmission, and in 2007 Director if IT Infrastructure and Enterprise Services for Entergy Corporation. Mr Mader retired from Entergy in April 2014 and is now a private consultant to the electric power industry.

Jean Mahseredjian

Jean Mahseredjian is currently a professor at Polytechnique Montréal. He brings with him more than 30 years of research and development experience on power system transients, having spent 17 years at the Institut de Recherche d’Hydro-QuÉbec (IREQ) specializing in electromagnetic transient simulation and analysis. Jean is the creator and lead developer of EMTP.

Upcoming dates (1)

Nov. 30 - Dec. 4, 2020

Online RA00967-U237
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Program Director

Kevin Rogers


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