DIgSILENT PowerFactory 2022 — Overview & Practical Guide What it is DIgSILENT PowerFactory 2022 is a commercial power system analysis software for modeling, simulation, and analysis of generation, transmission, distribution, and industrial power networks. It supports steady-state, dynamic (time-domain), RMS and EMT-like studies, protection and control simulation, market and reliability analysis, and integration of renewables and converters. Key capabilities

Steady-state power flow (AC/DC), optimal power flow (OPF), and contingency analysis Short-circuit and symmetrical component calculations (IEC/ANSI) Time-domain dynamic (RMS) simulations for stability, fault recovery, and control tuning Electromagnetic transient (EMT) and transient stability co-simulation (via DIgSILENT’s EMT solver or interfaces) Protection coordination and relay testing with fault injection and automated relay models Harmonic analysis, power quality studies, and flicker evaluation Detailed models for synchronous machines, power electronics (inverters, converters), HVDC, FACTS devices Distribution network features: unbalanced load flow, fault location, connection of distributed energy resources (DERs) Scripting and automation via DSL (DIgSILENT Programming Language) and Python API for batch runs, custom analyses, and integration with external tools GIS and CIM import/export, model exchange via common formats (e.g., IEC 61970/61968), and database-driven project management User interface: graphical one-line editor, tables, charts, and customizable reports

Typical workflows

Build model: create buses, lines, transformers, loads, gens, protection devices; assign parameters. Validate: run load flow and short-circuit checks; inspect bus voltages, line loadings, transformer tap positions. Study: run contingencies, OPF, harmonic analysis, or dynamic stability scenarios. Run dynamic simulations: initialize operating point, apply disturbance (fault, trip, ramp), simulate response, analyze signals (speed, voltage, currents). Automate/report: use scripts to run parameter sweeps, sensitivity studies, or generate standardized output for stakeholders.

Practical tips

Always start dynamic runs from a converged steady-state solution to avoid initialization errors. Use appropriate model fidelity: EMT for fast converter dynamics; RMS for electromechanical stability—mixing requires careful interfacing. Keep units and per-unit base consistent across components. PowerFactory can manage per-unit bases but verify when mixing libraries. Use the Python API for reproducible workflows, parameter studies, and connecting to optimization or data-processing tools. Modularize large networks using subnetworks and zones to speed up simulations and focus studies. Leverage built-in libraries for standard relay models and inverter controls; customize only when necessary. Use case and version control for models—export snapshots or use the integrated project database to track changes.

Licensing & editions PowerFactory is licensed (node-locked or floating) and typically offered in different packages/modules depending on required functionality (e.g., distribution, transmission, protection, market). Contact DIgSILENT or an authorized reseller for pricing and feature bundles. Common applications

Transmission system planning and security assessments Distribution network planning with high DER penetration Protection coordination and relay settings validation Integration studies for wind, solar, battery storage, and converters Microgrid design and control testing Research and teaching in power system dynamics and control

Learning resources

Official user manuals and application notes (provided with the software) Built-in example projects and templates—start from these to learn workflows DIgSILENT training courses and webinars for in-depth topics Community forums, academic papers, and university lab exercises that use PowerFactory

Short example (typical dynamic study steps)

Build or import network and set steady-state operating point. Configure dynamic models for generators, controls, and protection devices. Initialize dynamic simulation from the load-flow solution. Apply disturbance (e.g., 3-phase fault at a bus for 100 ms). Run time-domain simulation for required duration (e.g., 10 s). Plot and analyze rotor angles, voltages, generator speeds, and protection activations. Adjust settings or controls and re-run as needed.