Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Simulation of Wind-Power Plants combining ATP/ATPDesigner and Simplorer Power Engineering Saar Institut for Power Engineering, Power Electronics and Electrical Drive Engineering Homepage ATPDesigner: ATPDesigner http://people.freenet.de/atpdesigner Prof. Dr.-Ing. Michael Igel Prof. Dr.-Ing. Stefan Winternheimer Saarbrücken, Germany Stand: V1.0 – 25.09.2006
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Wind-Power Plants in Germany 1990-2004
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Wind-Power Plants
Installed Active Power in kW
17 GW ≈ 15%
2003 in Germany: ≈ 110 GW
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Background of the Project ZEREN
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
ZEREN : System Perturbations caused by Wind-Power Plants Situation in Germany – Number of wind-power plants is permanently increasing System perturbations are also increasing Situation in Saarland – Active power ≈ 850MW, 850MW incl. wind-power plants – Installed wind-power plants ≈ 50MW – Availability of wind-power plants ≈ 1000h / year ≈ 11% / year Minor amount of wind-power generation compared with the amount of the active power consumption Wind-power plants infeed the electrical energy in the 20kV medium voltage networks Voltage regulation is not available in the 20kV MV networks Core problem: Voltage Stability in 20kV ... 0.4kV networks 33
Hochschule für Technik und Wirtschaft des Saarlandes
Project ZEREN
University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Objectives to Simulate 20kV MV network (≈ ≈50 lines, ≈30 transformers) in the northern Saarland – Wind farm infeeds up to 10MW – Extremly fluctuating power consumption of industrial customers Power converter and its control characteristic
What CAE-Tools Are Required ? „Easy to Use“ simulation software for – Electrical power networks (stationary and transient phenomena) – Power converters and their control characteristic
The Solution ATP Simplorer® ATPDesigner
Simulation of the electrical power network Power electronic and control characteristic Graphical user interface (GUI) Graphical user interface to ATP
Glue between ATP and Simplorer
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Simplorer
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Modeling and simulating power electronic circuits as well as the required control characteristics Components are available in libraries New models can be implemented using a C/C++ interface Calculated currents and voltages can be presented in diagrams Calculation of the frequency spectrum based on the FFT User friendly and easy to learn Interactive design and analysis of the power converters Suitable to realize projects with students of electrical engineering Startup phase for students ≈ 1 week
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Model of the Power Converter
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
3-phase voltage source inverter fed by a constant DC voltage Devices to meter voltages and currents Short-circuit impedance Zk = R + jω ωL of the power transformer
Phase Currents including higher frequencies
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Control Characteristic
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Phase Current iA(t)
Control Characteristic Pulse Width Modulation (PWM) Easy to realise using the GUI of Simplorer Control Characteristics can be studied without changing the electronic circuit
Control Signal Phase Current Fundamental frequency fnom Additional frequencies depending on the control characteristic of the power converter 77
Interface Simplorer - ATPDesigner
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Simplorer ®
ATPDesigner ATP
FFT
Simulation of Power Converter and Control Characateristic Calculation of the frequency spectrum of the phase currents by FFT (Exported into a text file) Import of the frequency spectrum analysing the text file and creating a Multi Frequency Source (MFS) One 3-phase current source for each frequency Addition of the current sources using one common node Reconstructing the phase currents by Invers FFT
Multi Frequency Source
Simplorer®
Invers FFT
ATP ATPDesigner 88
Multi Frequency Source
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Shape
User friendly settings interface „One Click“ import of the Simplorer FFT data Can be easily modified by hand Stored in the ATPDesigner .NET-file
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Hochschule für Technik und Wirtschaft des Saarlandes
And the Advantages ?
University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
FFT
Multi Frequency Source
Simplorer®
Invers FFT
ATP ATPDesigner
Power Converter Control Characteristic
Design Center Network Simulation
Using the Strenghts of the Combination Specific strengths are added Projects can be splitted in Power Network and Power Converter Multi Frequency Source = Glue between the tools
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20kV-Network with Wind-Power Plant
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer Wind-Power Plant
Prb 2
Prb 4
CTRL+F: Settings
First Time to Use the Tools: Project of Power Engineering Students „Virtual“ wind-power plant with an active power 0..10MW Steady State Analysis Calculation of phase-to-ground voltages in the 20kV- and 0.4kV network Voltage stability depending on the active power
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Current Infeeded by Wind-Power Plant
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Analyzing Window
Open the Diagram
Graphic Cursor, Frequency Spectrum
Diagram Toolbar
Fundamental frequency fnom = 50Hz: |I ABC| according the active power infeed of the wind-power plant Additional frequency components depending on the control characteristic of the power converter 12 12 „Transfer“ of Simplorer capabilities into ATP via ATPDesigner
Phase Currents at Prb 2
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
≈ 1800Hz
Frequency Spectrum of the Phase Current 13 13
Phase-to-Ground Voltages at Prb 4
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Prb 2
Prb 4 14 14
Spectrum of the Phase-to-Ground Voltages
Hochschule für Technik und Wirtschaft des Saarlandes
University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Frequency of the Power Converter ≈ 1800Hz
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Disconnect the Wind-Power Plant ...
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Phase-to-Ground Voltages
Simulation of the transients: Wind-power plant disconnected from the network (using circuit breaker Cb1) Transient system perturbations can be studied 16 16
Hochschule für Technik und Wirtschaft des Saarlandes
ATP ATPDesigner Simplorer
University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer SS2
T2: 20/0,6kV
SS1 T1: 110/20kV
Leitung 1
Cb1 / M1
Rzul
MFS Prb 2
Prb 1
RAbl Windpark
N1: 110kV, 4000MVA
Leitung 2 T3: 20/0,4kV
Simulation of Power Networks
Leitung 3 Prb 3
PV
PV
Prb 5
Ltg. 8 SS3
Multi Frequency Source
PV
Leitung 5
Leitung 6
Ltg. 7
ATPDesigner
Leitung 4
T4: 0,4/20kV
SS4
Prb 4 P V
Simulation of Power Converter
PV
Simplorer 17 17
Hochschule für Technik und Wirtschaft des Saarlandes
And the Current Activities ...
University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Simulation of System Perturbations in the 20kV MV Network
110kV network infeed Wind farm 50 Lines 30 energy consumers 35 transformers 40 probes ...
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Conclusions
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Simulation of the system perturbations of wind-power plants requires – Simulation of power converters and their control characteristic – Simulation of electrical power networks and their transients Simplorer ATPDesigner ATP
Power Converters and control characteristic Interface to Simplorer using Multi Frequency Source Power networks (stationary and transient)
Simplorer , ATPDesigner , ATP – Specific strengths of the tools can be easily combined using the Multi Frequency Source – Powerful tool compilation to study system perturbations, also stationary as well transient phenomena 19 19
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Thank You for Your Attention. 20 20
Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Sciences
Simulation of Windpower Plants Combining ATP / ATPDesigner and Simplorer
Power Engineering Saar Institut for Power Engineering, Power Electronics and Electrical Drive Engineering Hochschule für Technik und Wirtschaft des Saarlandes University of Applied Science Saarbrücken, Germany
Prof. Dr.-Ing. Michael Igel
[email protected] www.htw-saarland.de/members/michael.igel
Prof. Dr.-Ing. Stefan Winternheimer
[email protected]
ATPDesigner http://people.freenet.de/atpdesigner
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