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

May 9–10, 2022 | Novotel, Munich

The 15th Seminar on Power Electronics for Photovoltaics and Battery Systems (May 9–10, 2022) 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, May 9, 2022

9:00

Welcome Address

Prof. Dr. Bruno Burger, Senior Scientist, Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany.

9:15

"Single Phase String Inverters, Part 1"

Basic Requirements, Circuits, Efficiency, Development Trends

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

10:15 COFFEE BREAK
10:45

"Single Phase String Inverters, Part 2"

Basic Requirements, Circuits, Efficiency, Development Trends

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

11:45

"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

12:30 LUNCH TIME
13:30

"Solar Power Maximizers"

Active Bypass Diodes, Buck Converters, Boost Converters, Buck-Boost Converters, Challenges of Maximizers

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

14:00

"Micro Inverters"

Circuits with low frequency and high frequency transformer, transformer-less circuits, Challenges of micro inverters

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

14:30

"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, May 10, 2022

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 Kulenkampff, Fraunhofer ISE, Freiburg, Germany

10:45 COFFEE BREAK
11:15

"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

12:00

"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

12:45 LUNCH TIME
13:45

"Utility Scale Battery Systems"

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

Nina Munzke, KIT, Karlsruhe, Germany

14:30

"Grid Control with Converters"

Stability aspects in power grids, grid forming converters, microgrids and interconnected systems with high share of converter-based resources

Rebekka Denninger, Fraunhofer ISE, Freiburg, Germany

15:15 COFFEE BREAK
15:45

"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 Kulenkampff, Fraunhofer ISE, Freiburg, Germany

16:30

"Grid Codes for PV Inverters and Battery Systems"

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

Steffen Eyhorn, Frauenhofer ISE, Freiburg, Germany

17:15 Q&A Session and Final Discussion
17:30 End of the Seminar
19:30 Conference Barbecue, Tickets can be bought from Solar Promotion

Chairman

Prof. Dr.-Ing. Bruno Burger

Senior Scientist, Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany

Speakers

Prof. Dr.-Ing. Bruno Burger

Senior Scientist,
Fraunhofer ISE, Freiburg, Germany

Presentations:

  • Single Phase String Inverters
  • Solar Power Maximizers
  • Micro Inverters
  • Battery Chargers and Off-Grid Inverters
  • Three Phase String Inverters
  • PV System Technology

Rebekka Denninger

Project Manager Grid Performance of Decentral Generators,
Fraunhofer ISE, Freiburg, Germany

Presentations:

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

Dipl.-Ing. Felix Kulenkampff

Project Manager High Power Electronics and Systems,
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 Group High Power Electronics and Systems,
Fraunhofer ISE, Freiburg, Germany

Presentation:

  • New Power Semiconductors

Nina Munzke

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

Presentation:

  • Utility Scale Battery Systems

Steffen Eyhorn

Head of Team TestLab Power Electronics,
Fraunhofer ISE, Freiburg, Germany

Presentation:

  • 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-pse.de

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