02 Basic PF Structure

DIgSILENT PowerFactory Structure and Handling

PowerFactory Software Structure

Data Management System Stages / Variations Study Cases

Graphic Editor Single Lines Station Graphics

External DB GIS / SCADA / PowerWare

PowerFactory DB

Functions

Single-User Multi-User

Models Algorithms

Output Graphics Tables/Filters Data Bases

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Graphic User Interface

Project overview

Data Manager

Drawing Toolbox

Icon Bars

Graphic Window

Output Window DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“

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Data Structure

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Basic Concepts

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All data is stored in a database.

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The network topology is also presented graphically.

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Two ways of accessing data: – Via the graphical user interface – Via the data manager

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The Main Database Structure

Library

Global Library: Only administrator is allowed to make changes

User 1 User 2 User 3 Project Local Library: User 3 is

Library

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allowed to make changes

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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)

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Project Structure

• Library • Equipment Type Library • Operational Library • DPL Scripts • Templates • Userdefined Models

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Library • • • • •

Equipment Types Operational Data DPL Scripts Templates User Defined Models

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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, …

The library can contain sub-folders for each class.

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Operational Library

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

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Network Data: Element – Type Concept

Project

Type A

Equipment Types

Grid

Element 1

General Definitions “Manufacture´s Datasheet” …

Element 2

Topology and Operational Data …

Operation Point A Limits A

Operational Data

Operation Point B Limits B

Operation Scenarios (optional)

Study Cases DIgSILENT PowerFactory Training „Load Flow and Short Circuit Calculation“

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Project Structure

• Network Model • Diagrams • Network Data • Variations

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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

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Network Data - Example of tree structure

Site X (optional) 400kV Substation Busbar A Busbar B Switch 1

275kV Substation

Interconnecting 400/275kV transformers

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Project Structure

• Network Model • Diagrams • Network Data • Variations

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Network Diagrams

Electrical Data and Topology

Graphical Representation in Diagrams Overview Diagrams

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Simplified Single Line Diagrams

Detailed Single Line Diagrams Substations

Branches

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

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Network Diagram: General Functions

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Zooming

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Undo-Function

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Graphics Options General adjustments (Format, ..)

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Layer-Concept (Show/Hide/Format) for scalable complexity

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Comprehensive Colouring by Criteria

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

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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

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Network Diagram: Handling

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Double Click on Symbol Opens Entering Dialogue

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Double Click on Switch Opens / Closes Switch

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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 - „Ctrl“ + „V“ Paste copied Object (Graphic + Data)

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Project Structure

• Study Cases

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Study Cases

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The Study Case specifies the grids, operation scenarios, variations and calculation options to use for a study.

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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.

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A concept of study case allows the user to reproduce results.

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Project overview window

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

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It is listed – – – –

Study Cases Grids Variations Operation Scenarios

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Data Management

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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 …

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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. Important: ANY change is considered!

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