Training Course Outline
Manitoba HVDC Research Centre Inc. 244 Cree Crescent Winnipeg, Manitoba, Canada R3J 3W1 T 204 989 1240 F 204 989 1277 sales@pscad.com www.hvdc.ca
Introduction to PSCAD and Applications
DURATION 3 Days COURSE DESCRIPTION This course will cover the fundamental phenomena applicable to the study of electromagnetic transients in electrical networks. A number of application areas such as AC transients, insulation coordination, fault and protection, transformer saturation, wind energy, FACTS, distributed generation, and power quality, as well as other power systems topics will be discussed with practical examples serving to illustrate the subjects. Several case studies will be applied in detail to highlight practical situations encountered by engineers in the field. Course attendees will be able to experiment with the case studies in an interactive hands-on workshop environment using the PSCAD Simulation software. Attendees can request coverage of specific topics or phenomena of interest. No previous experience with the PSCAD software is required. WHO SHOULD ATTEND? This course is intended for practicing engineers, graduate students, and researchers in power systems and power electronics, who are interested in developing an in depth understanding of the modern tools available for the analysis of transient events in the network. The course is for existing PSCAD users as well as introductory users. COURSE TOPICS 1. Installing the software and getting started 2. Creating a small simulation case using PSCAD • Building the power system • Data entry • Results, graphs, plots, and meters • Interactive control features of PSCAD (sliders, push buttons, dials and switches) 3. Fundamental theory of transient simulation • Representation of power system components and control system elements • Selection of the simulation time step • Studies that require simulation tools like PSCAD • Advanced features of PSCAD for fast and accurate solutions 4. A brief look at the models and examples available in PSCAD 5. Transient Studies • Transient over voltage studies (TOV): o Line energizing (charging and discharging transients) o Capacitor bank back to back switching, selection of inrush and out-rush reactors o Breaker re-strike o Energy dissipation of surge arrestors, arrestor rating and the selection of arrestors o Transient recovery voltage across breakers (TRV) o Batch mode processing to capture the worst case o Determination of station stray capacitance values and representation in the study o IEEE breaker capability curves
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6. Direct conversion of PSSE data files to PSCAD 7. Transformers • Inrush current issues • Saturation • Representing different core types • Unbalanced loading and grounding issues • Ferro resonance examples 8. Faults • Preparing the simulation to perform a sequence of events such as the occurrence of a fault, breaker opening, fault clearance and re-closure etc. • DC offset in fault current, the rate of decay, and its influence on CT saturation and relay mal-operation • Automated generation of a large number of fault waveforms in COMTRADE format for real time relay testing 9. Protection systems • Detailed CT saturation models • Modeling a simple relay scheme • Case study of a line reactor differential relay mal-operation 10. Induction machines • Large induction motors starting issues including flicker and voltage dip problems • Induction generators in wind applications (doubly fed connection and controls) • Drive example 11. Power Electronic Basics • Using power electronic modules and designing simple firing systems • PSCAD Interpolation method 12. FACTS Devices • Active filters • SVC • STATCOM Selected topics depending upon interest from participants chosen from list below. 13. Generators • Controls including governors, exciters, PSS, etc • Using optimization routine of PSCAD to tune the gain of a PSS • Inter-area oscillations • Loss of synchronization and critical clearing times for faults • Effect of exciter gain on stability • Load sharing and tie line power • Special topics o Optimization routine of PSCAD o Sub Synchronous Resonance issues and modeling 14. Power Quality • Voltage dips, swells and interruptions o Induction motor starting o System faults • Voltage fluctuation o Arc furnace loads o Evaluation of flicker severity
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Harmonic distortions o Modeling of converters o Evaluating system voltage distortions o Design of harmonic filters o Operation of active filters Inter-harmonics o Modeling sources of inter-harmonics o Voltage fluctuation impacts
15. Designing custom components • Control and measurement components • Electrical components INSTRUCTOR Course instruction will be provided by a simulation and application expert from the team of PSCAD Support Engineers. COURSE PARTICULARS • For courses at our office, we will provide a computer (if required), workbook with tutorial examples, and PSCAD V4 for use during the course. • Lunches are provided on site. • Hotel accommodations and local travel are the responsibility of the student. Contact us for a list of local accommodations. • A minimum enrolment is required. Students will be notified two weeks prior to commencement if the course is cancelled. Please contact us if you have any questions, if you would like a quotation, or if you would like register for this course. You can reach us by telephone +1-204-989-1240, fax +1-204-989-1277, or email training@pscad.com.
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