02 Basic PF Structure

DIgSILENT PowerFactory

Structure and Handling

PowerFactory Software Structure

Graphic Editor Single Lines Station Graphics Output Graphics Tables/Filters Data Bases Data Management

System Stages / Variations Study Cases

External DB

GIS / SCADA / PowerWare

Functions Models Algorithms PowerFactory DB Single-User Multi-User

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 3 Graphic User Interface

Graphic Window Data Manager Icon Bars D ra w in g T o o lb o x Output Window Project overview

Data Structure

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 5 Basic Concepts

• All data is stored in a database.

• The network topology is also presented graphically.

• Two ways of accessing data:

– Via the graphical user interface – Via the data manager

The Main Database Structure

Library

User 1

User 2

User 3

Project

Library

Local Library: User 3 is allowed to make changes

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 7 The PowerFactory Project

• A Project is the complete set of data: - Network Models & Diagrams - Demand/Generation Patterns - Type and Operational Libraries

- Calculation Commands (Load Flow, Short Circuit, Contingency, etc.) - Results, etc.

• In a project, data is organized in a set of folders (workbook structure)

Project Structure

• Library

• Equipment Type Library • Operational Library • DPL Scripts

• Templates

• Library

• Equipment Types • Operational Data • DPL Scripts • Templates

• User Defined Models

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 9

Equipment Types

A Type holds the essential electrical information for each class of component as usually provided in manufacturer´s datasheets.

E.g. the cable type data :

• impedance values per length • rated voltage and current, …

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 11

The Operational Library contains following data that can be applied to elements in the network data:

• Circuit-Breaker Ratings • Thermal Ratings • Mvar Limits Curves • Outages

• Demand Transfer

• Running Arrangements (RA)

• Faults: Fault Cases and Fault Groups

Operational Library Topology and Operational Data Project Operational Data Element 1 Study Cases

Network Data: Element – Type Concept

… Element 2 General Definitions “Manufacture´s Datasheet” Type A … Equipment Types Grid Operation Scenarios (optional) Operation Point A Limits A Operation Point B Limits B

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 13 Project Structure

• Network Model

The network model contains all electrical and graphical information.

The model can be divided into:

• Network Diagrams: Overview, Single Line and Substation Diagrams of all networks contained in the project.

• Network Data: network components, switches, topology, controller models, etc.

• Network Variations: e.g. reinforcements, new lines or stations.

• Additional data like: Areas, Zones, Feeders, Routes, Circuits, Paths, Boundaries, Virtual Power Plants, Owners, Operators

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 15 Network Data - Example of tree structure

Site X (optional) 400kV Substation 275kV Substation Interconnecting 400/275kV transformers Busbar A Busbar B Switch 1 Project Structure

• Network Model

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 17 Network Diagrams

• Elements can be represented graphically in more than one single line diagram, but only once per single line diagram

Electrical Data and Topology

Overview Diagrams Branches Substations Simplified Single Line Diagrams

Graphical Representation in Diagrams

Detailed Single Line Diagrams

• Zooming • Undo-Function • Graphics Options

General adjustments (Format, ..)

• Layer-Concept (Show/Hide/Format) for scalable complexity • Comprehensive Colouring by Criteria

• Printing incl. Preview, Graphical Diagram Export (*.wmf, *.bmp)

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 19 Network Diagram: Working Modes

„Freeze“ Mode:

Entering and Changing Data, e.g. Switching or Changing of Loads (P, Q)

No Graphical Changes possible
Changing of Result Box Formats

Graphic Mode:

Changing the Graphical Representation, e.g. Moving, Rotating, Deleting of Elements, Changing the Size of Busbars / Terminals
Re-Connect Elements

Changing Position, Size and Orientation of Text and Result Boxes

Network Diagram: Handling

• Double Click on Symbol Opens Entering Dialogue • Double Click on Switch Opens / Closes Switch • Keyboard Shortcuts:

- „Shift“ while Moving „Ortho“ (moves only in horizontal or vertical direction) - „Ctrl“ while Selecting -> Multiple Selection of several elements

- „Ctrl“ while Drawing Loads/Generators … -> 180° Rotation

- „Ctrl“while Drawing Loads/Generators Busbars/Terminals -> 90° Rotation - „Ctrl“ + „C“ Copy marked Object

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 21 Project Structure

• Study Cases

Study Cases

• The Study Case specifies the grids, operation scenarios,

variations and calculation options to use for a study.

• Therefore, the study case holds:

– Links to active Grids, Operation Scenarios and Variations – Study Time

– Calculation command definitions (Load-flow settings, etc.) – Results of calculations

– Outage definitions for contingency analysis – Graphical settings

(Plots; Visibility of Diagrams, Frames, and Blockdefinitions) – etc.

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 23 Project overview window

• The project overview window helps to keep the overview of the

project • It is listed – Study Cases – Grids – Variations – Operation Scenarios

Data Management

DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“ 25 Undo Functionality

• All changes are internally recorded by a “time stamp”

in a project “history”.

• The Undo function can go back in the project history.

• Undo includes all data changing

(e.g. done inside the Data Manager)

• The history is cleared upon project deactivation.

• Changes can be:

– Deleting, changing, adding elements – Graphical changes

– Modifications of parameter values

– Multiple simultaneous changes will be recorded as one change – …

Tracking Changes in Object Data

Last Modified information:

• Shows a time stamp, when the object has been touched the last time. • The user who is responsible for the change is shown.

Information allows:

• Check when/if object has been changed. • Whom to ask.