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https://docs.gridmo.ioDocumentation for the Gridmo software platform, featuring a comprehensive library of error and warning codes, reference guides for Nodes and Plotting, and configuration templates such as AEMO Generator Performance Standards (GPS). The platform integrates with electrical engineering software including PSS®E, PowerFactory, PSCAD™, and DSATools™ TSAT.
PowerFactory smiby is a standardized Thévenin equivalent representation provided as a PowerFactory Global template object (_.IntTemplate_). It is used to add a Thévenin equivalent to the point of connection (POC) of a generating system in a SMIB model.
Unlike some other representations, gridmo models the Thévenin equivalent impedance in a separate branch called ZTHEV rather than within the internal source impedance of the generator. This design ensures that the Thévenin voltage (VTHEV) remains directly accessible. When gridmo is used to set site-specific Short Circuit Ratio (SCR) and X/R ratios, the impedance of the ZTHEV branch is adjusted automatically.
The SSIAG template (v7) is designed for the Australian (AU) market to quantify the impact of inverter-based generators and loads on the grid. It assesses a plant's capability to ride through low Short Circuit Ratio (SCR) operating conditions to determine the 'Withstand SCR'.
Technical Requirements:
Key Limitations:
The CEA Technical Standards for Connectivity to the Grid (CTU Tests) template (v3) is designed for renewable energy generators in India to demonstrate compliance with CEA TSCG and IEGC regulations. It requires PSS®E and PSCAD™ software and covers the following tests:
| Test | Relevant Regulation Clause |
|---|---|
| Reactive power capability test | CEA TSCG: Part-II.B2(1) |
| Capability to operate in frequency range: 47.5 Hz to 52 Hz | CEA TSCG: Part-II.B2(2) |
| Capability to provide rated output in frequency range of 49.5 Hz to 50.5 Hz | CEA TSCG: Part-II.B2(2) |
| Low voltage ride through | CEA TSCG: Part-II.B2(3) |
| Active power setpoint and rate of change of active power | CEA TSCG: Part-II.B2(4)(i) |
| Frequency response test | CEA TSCG: Part-II.B2(4)(ii,iii), IEGC: 30(10) |
| Demonstration of immediate real power primary frequency response | CEA TSCG: Part-II.B2(4)(ii,iii) |
| High voltage ride through | CEA TSCG: Part-II.B2(7) |
PSS®E smiby is a tool that provides a standardized Thévenin equivalent representation to help set up PSS®E models in gridmo. It is designed to prevent common errors related to Thévenin source impedance (such as abnormally high impedance).
In gridmo, the Thévenin equivalent impedance is modeled specifically in the branch ZTHEV rather than within the internal source impedance of the generator. This ensures that the Thévenin voltage (VTHEV) remains easily accessible. The impedance of the ZTHEV branch is later adjusted by gridmo based on site-specific Short Circuit Ratio (SCR) and X/R values. By default, the source is set to be infinitely strong (negligible impedance).
The Overlay builder automates the configuration of a Loop: Start Node and one or more Data Nodes based on input data files. It is designed for tests that require looping through multiple files, shifting the x-axis so events occur at a common time (e.g., t = 5 seconds), and performing plotting or analysis for each file. Common use cases include:
The Western Power Dynamic Model Acceptance Tests (DMAT) template (v1) is designed for use with PowerFactory and PSCAD™.
Important Note: As of August 2026, this template is not based on formal Western Power requirements. Instead, it adapts AEMO's DMAT requirements (originally for PSS®E and PSCAD™) for execution in PowerFactory, anticipating that Western Power will leverage the AEMO NEM DMAT framework for the WEM DMAT.
