15th Seminar "Power Electronics for Photovoltaics and Battery Systems"

October 4–5, 2021 | Novotel, Munich

The 15th Seminar on Power Electronics for Photovoltaics addresses especially electrical engineers working in the PV sector. Specialists in hardware and control electronics give an overview on all relevant topics of power electronics for PV. These include power optimizers and micro inverters, single- and three phase inverters, off-grid and battery inverters, feedback control systems, grid codes and measures for fire protection.

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Program

This year’s program again brings you two days full of practical knowledge and hands-on experiences on power electronics for PV. We discuss several electrical circuits for maximizers and inverters, that are used in todays products. Additionally you learn to develop control schemes for inverters and you get informations on grid codes and fire safety aspects.

Monday, October 4, 2021

9:00

Welcome Address

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

9:10

"Power Electronics for Photovoltaics"

Review Market Data, PV Electricity Production

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

9:30

"New Power Semiconductors"

SiC and GaN Power Transistors and Diodes, Gate Drivers, Applications and Challenges of the new Technologies

Dipl.-Ing. Andreas Hensel, Fraunhofer ISE, Freiburg, Germany

10:15 COFFEE BREAK
10:45

"Single Phase String Inverters"

Basic Requirements, Circuits, Efficiency, Development Trends

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

12:15 LUNCH TIME
13:30

"Module Integrated Electronics"

Active Bypass Diodes, DC/DC-Converters, Micro Inverters, Challenges of module integrated electronics

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

14:15

"Battery Chargers and Off-Grid Inverters"

Battery Charge Regulators: Series, Shunt and MPP-Regulators, Circuits, Trends; Off-Grid- Inverters: Requirements, Circuits, Efficiency

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

15:00 COFFEE BREAK
15:30

"Three Phase String Inverters"

Basic Requirements, Circuits, Efficiency, Development Trends

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

17:00 End of First Day

Tuesday, October 5, 2021

9:00

"Residential Grid-connected Battery Systems"

Residential battery systems for PV self-consumption, central battery systems for grid support, delivery of active and reactive power, compensation of harmonics

Rebekka Denninger, Fraunhofer ISE, Freiburg, Germany

9:45

"Central Inverters and PV Power Plant Concepts"

Basic Requirements, Circuits, Efficiency, Reliability, Cooling, Power Plant Concepts, Development Trends, System Design of PV Power Plants

Dipl.-Ing. Felix Eger, Fraunhofer ISE, Freiburg, Germany

11:00 COFFEE BREAK
11:30

"PV System Technology"

IV-Curves, MPP and DC voltage range, temperature behaviour, MPP-Tracking, ratio PV power to Inverter power, losses due to PV oversizing, power limitation to 70%

Prof. Dr. Bruno Burger, Fraunhofer ISE, Freiburg, Germany

12:15

"Feedback Control Systems for Power Electronics"

Modelling of Controlled Systems, Controller Types, Cascaded Control, State Control, Control of DC/DC converters and DC/AC inverters, different types of PLLs

Rebekka Denninger, Fraunhofer ISE, Freiburg, Germany

13:00 LUNCH TIME
14:00

"Utility Scale Battery Systems"

Battery types, system concepts, galvanic isolation, voltage levels, safety aspects, control concepts, development trends

Nina Munzke, KIT, Karlsruhe, Germany

14:45

"Microgrids and PV-Hybrid Systems"

Definition of microgrids; control modes for microgrids; droop control for active and reactive power; hybrid systems; voltage and frequency control of diesel generators; development trends

Dr.-Ing. Sönke Rogalla, Fraunhofer ISE, Freiburg, Germany

15:30 COFFEE BREAK
16:00

"Fire Safety in PV and Battery Systems"

Methods and circuits for arc-fault detection; ground-fault protection; circuits for disconnection of PV-modules and strings; rapid system shutdown; safety and transportation requirements; safe operation

Dipl.-Ing. Felix Eger, Fraunhofer ISE, Freiburg, Germany

16:45

"Grid Codes for PV Inverters and Battery Systems"

International Requirements, Low Voltage Ride Through (LVRT), Inverter Efficiency, Harmonics, Measurement Results, Field Experience

Dr.-Ing. Sönke Rogalla, Fraunhofer ISE, Freiburg, Germany

17:30 Q&A Session and Final Discussion
18:00 End of the Seminar

Chairman

Prof. Dr.-Ing. Bruno Burger

Head of Department Advanced Devices and Technologies, Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany.

Speakers

Prof. Dr.-Ing. Bruno Burger

Head of Department: New Devices and Technologies,
Fraunhofer ISE, Freiburg, Germany.

Presentations:

  • Power Electronics for Photovoltaics – Review
  • Single Phase String Inverters
  • Module Integrated Electronics
  • Battery Chargers and Off-Grid Inverters
  • Three Phase String Inverters
  • PV System Technology

Rebekka Denninger

Development Engineer,
Fraunhofer ISE, Freiburg, Germany

Presentations:

  • Residential Grid-connected Battery Systems
  • Feedback Control Systems for Power Electronics

Dipl.-Ing. Felix Eger

Development Engineer,
Fraunhofer ISE, Freiburg, Germany

Presentations:

  • Central Inverters and PV Power Plant Concepts
  • Fire safety in PV and Battery Systems

Dipl.-Ing. Andreas Hensel

Head of Team: Power Electronics for Medium Voltage Applications,
Fraunhofer ISE, Freiburg, Germany

Presentation:

  • New Power Semiconductors

Nina Munzke

Group Leader: System Control and Analysis,
KIT, Karlsruhe, Germany

Presentation:

  • Utility Scale Battery Systems

Dr.-Ing. Sönke Rogalla

Head of Department: Inverters in Power Grids,
Fraunhofer ISE, Freiburg, German

Presentations:

  • Microgrids and PV-Hybrid Systems
  • Grid Codes for PV Inverters and Battery Systems

Contact

Ms Yvonne Bregazzi

Conference Management

Phone +49 7231 58598-184
Fax +49 7231 58598-28
Email bregazzi@conexio.expert