Knowledge Base

Improved Synchronous Machine Model GENTPW

Presentation on GENTPW Model White Paper on GENTPW Model PowerWorld Corporation has developed a new synchronous machine model named GENTPW.  This model has been implemented in PowerWorld Simulator Version 20 and is available now. This model extends enhancements made in the GENTPF/GENTPJ which more accurately represents the effect of saturation on the machine during steady […]

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October 24, 2018

GIC Time Varying Electric Field Example

PowerWorld Simulator supports binary and text file formats for time and spatially-varying geomagnetic disturbance (GMD) surface electric field inputs. This format allows development of detailed solar storm scenarios based on historic events or 3D earth conductivity models. Sample (B3D binary format) based on June 22, 2015 event [1], over footprint of the U.S. State of […]

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October 15, 2018

Play-in time series measurement data with PlayInGen model for Power Plant Model Validation (PPMV)

PlayIn models can be found in the Transient Stability add-on of Simulator. Many dynamic models comprise of differential-algebraic equations that respond to perturbations in a simulation. In contrast, these PlayIn models are used to input time-series data into a transient run at specified time points. In Simulator, a PlayIn Configuration object can be used to store […]

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February 8, 2017

Adding Voltage Compensation to a Generator Model

Generator Voltage Compensation The input signal to Exciter models is a voltage signal (often labeled as either Vc or Ec on a block diagram).  In the simplest form this is just the per unit voltage magnitude of the terminal bus of the generator.  However, sometimes instead of using that voltage signal directly, the voltage is compensated by attempting to control […]

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October 19, 2016

Coordinated Initialization of the Load Distribution Equivalent, Load Characteristic, and Load Distributed Generation Models

Generator modeling in transient stability simulation software has been modularized for decades. Generators are modeled using a Machine Model, Exciter, Governor, Stabilizer, etc.  Several new modules for generators have been added in the past few years specifically for wind turbine and renewable energy modeling. Load models however had remained stuck with only 2 models: a load […]

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January 8, 2016

Voltage Compensation Data Input Errors leading to Transient Instability

Voltage Compensation can be modeled in a few different ways in PowerWorld Simulator.  First, there are Rcomp and Xcomp values which can be specified with the various synchronous machine models such as GENROU, GENSAL, GENTPF, and GENTPJ.  In addition, you can add specific other generator models to represent compensation: COMP, CCOMP, COMPCC, CCOMP4, and IEEEVC. Without […]

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October 22, 2015

Motor Load Starting using Transient Stability

Note: Download a small sample case at the following link which is used in this demonstrate: MotorStart Case Note: Starting in the July 10, 2013 patch of Simulator 17, a modification was made to automatically change the integration time step for the entire simulation when induction motors (loads) or induction machine (generators) drop below 0.1 per […]

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July 2, 2013

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