Program of the UGM & Workshop
Wednesday 8th August 2018: Welcoming cocktail reception
The EMTP-RV team will have the pleasure to open this 2-day User Group Meeting and Workshop with a beer tasting from 6:30 to 9:00 pm in Room D133 of the Oregon Convention Center.
Oregon Convention Center Address:
777 NE Martin Luther King, Jr. Blvd
Portland, OR 97232
Thursday 9th August 2018: User Conference
|08:00||Breakfast and Registration|
Recent developments and Road Map, Jean Mahseredjian, Main Developer of EMTP, PGS Tech
Upcoming EMTP developments and versions.
Geomagnetic Disturbance Simulation Studies: Recent Developments and Challenges, Aboutaleb Haddadi & Afshin Rezaei-Zare, Dept. of Electrical Engineering and Computer Science York University
During a Geomagnetic Disturbance (GMD) event, geomagnetically-induced currents (GIC) may cause transformer saturation, hot-spot heating or damage, elevated harmonic distortion levels, increased reactive power demand, and loss of reactive power sources, the combination of which may result in voltage collapse and blackout. To ensure safe operation, NERC standard TPL-007 requires vulnerability assessments to establish requirements for transmission system planned performance during GMD events. Existing phasor domain packages face challenges particularly with regard to the simulation of harmonics and network nonlinearities which limits their use for GMD simulation studies. By contrast, EMTP enables such studies by accurately modeling nonlinearities and representing the system at a very high precision level in a wideband range of frequencies. This presentation studies how to perform a GMD study in EMTP in compliance with the NERC requirements. Required modeling details and data have been identified using a GMD simulation case study in EMTP.
Reproducing the 1989 GMD event in EMTP, Luc Gérin-Lajoie, Hydro-Quebec
Development of Hydro-Quebec network in EMTP for GMD studies. Methodology for GMD sensitivity analysis. Analysis of simulation results.
The new frequency dependent line and cable model: Wideband Model, Ilhan Kocar, Polytechnique Montreal
The new WB model encapsulates many improvements including state-of-the-art research results. It eliminates the modeling problems encountered with the existing universal line model (ULM) approach.
Impact of Wind & Solar Generation on Negative Sequence and Power Swing Protection, Evangelos Farantatos, EPRI
Inverter-based resources have much more complex fault current characteristics compared to conventional synchronous generators. Hence, legacy protective relays set under the assumption of a conventional power system with predominantly synchronous generation, may misoperate under high level of renewables.
Safe Operation of DFIG based Wind Parks in Series Compensated Systems, Ulas Karaagac, Hong Kong Polytechnic University
Subsynchronous control interaction (SSCI) is the interaction between the power electronics control and the series compensated transmission system that occurs at frequencies below the system nominal frequency. SSCI may occur between the doubly-fed induction generator (DFIG) control system and the series compensated transmission line, to which the wind park (WP) is connected. Not only the DFIG control system parameters, but also the WP operating conditions have significant impact on SSCI.
Investigation of Undesirable Impacts of Voltage Control Actions from Smart Inverters, Jens Schoene, Enernex
We present the results of an investigation of undesirable impacts of voltage control actions from autonomously acting residential Smart Photovoltaic generators (PVs) in response to abnormal voltage conditions. The smart PV capability we investigated is Volt-var Control (VVC), which provides dynamic reactive power (var) output (absorption or injection) through autonomous responses to local voltage measurements. The investigation was performed on a real-world secondary distribution system using an innovative simulation process involving time-series simulations. The simulation process was verified by comparing the time-series simulation results with results from time-domain simulations performed in EMTP-RV. For the EMTP-RV simulations, we developed an rms (root-mean-square) PV model that captures the dynamic behavior of the smart PV system. The var output can be controlled by either a Volt-var curve, a Volt-Watt curve or by specifying the power factor (i.e., fixed var output) operating in Watt or var priority mode. In addition, we developed an EMTP-RV model of the split phase 240 transformer that was used on the real-world secondary system. Our simulations have shown that some Volt-var curve settings without var ramp rate limit can result in unacceptable sustained oscillation, which can be particularly severe for curves without a deadband.
Advanced Topological Transformer Model, Afshin Rezae
Electric studies implemented by the Mexican system operator (CENACE) using the electromagnetic transients tool – the system planning perspective, Luis Daniel Anaya Pérez
To guarantee the efficient operation of the National Electric System in terms of quality, reliability, continuity, safety and sustainability, CENACE, as an independent system operator, has been responsible for carrying out various functions, many related to system planning. This infers the implementation of multiple studies and the need for different software tools, within which are those necessary for analysing electromagnetic transients. With the EMTP-RV tool, it has been possible to perform specific studies, particularly those associated with meeting the specifications of certain projects, such as the High Voltage Direct Current Transmission Lines of southeast Mexico, Baja California Norte and Baja California Sur, for which planning is in place to interconnect them to the Mexican system over the following years. Likewise, the tool has been used in key activities such as verifiying compliance to the Grid Code -mainly the quality energy parameters- to analyze the interconnection of generators and the connection of loads, as well as other uses, such as the determination of parameters of electrical elements, systems’ testing, among others. This presentation will briefly explain the functions of CENACE as the Mexican system operator, as well as an analysis of how the EMTP-RV tool has been used for the planning of the system.
Review of Balancing Reserve: Critical Requirement for Reliable Grid Operation in Large-Scale RE Integration in Indian Scenario, Abhijit Madhukar Potdar, Associate Manager-Power Systems, Sterlite Power Transmission Ltd.
|17:00||End of the EMTP User Group Meeting|
* Conference information and program are subject to change without notice.
Friday 10th August 2018: Workshop
The objective of this workshop is to give to beginner participants a good first hands-on experience on EMTP-RV and an overview of the EMTP-RV capabilities. The workshop is based on the usage of EMTP-RV for demonstrating concepts and teaching through practical problem cases.
Part 1: EMTP get started, EMTP team, Powersys
The objective of this first part of the workshop is to get familiar with the usage of EMT-type software and the study of power-system transients. How to model power-systems, what scenarios to run and how to interpret and verify results are as many questions that will be addressed. The software EMTP is used for demonstrating concepts and teaching through practical cases. Prior experience with EMTP is not required. Simulating Power System transients with EMTP is easy! Study how to build networks from small to large scale, from load-flow to time-domain.
Part 2: TRV analysis, Henry Gras, Powersys
The objective of this second part of the workshop is to get familiar with TRV analysis concepts. Two study cases will be presented: TRV on transfmission lines and TRV on transformer-limited fault scenarios.
Part 3: Wind turbine modelling and Sub-Synchronous-Control-Interaction (SSCI) Studies, Ulas Karaagac
The objective to learn how to simulated networks with wind turbine models. Both average value and detailed models will be discussed. The presentation will include Wind Park integration studies and analysis methods for sub-synchronous iteraction problems.
Part 4: GMD analysis in EMTP: compliance with the NERC requirements, Jean Mahseredjian
Presentation of network cases for GMD studies. Modeling details and topological impact on GMD.
|16:45||End of the workshop session|
Computer and temporary EMTP-RV license:
Each participant will have to bring a personal computer.
EMTP-RV temporary licenses will be provided for the duration of the course.