An iterative learning control approach combined with a multivariable RF controller for the Free Electron Laser FLASH. - Hauke Langkowski; Christian Schmidt 004; Gerwald Lichtenberg; Herbert Werner (ECC, 2009)

Enhanced grid integration of renewable power plants by grid impedance measurement. - Thanh Trung Do; Hauke Langkowski; Michael Jordan 004; Detlef Schulz (IECON, 2015)

Novel grid impedance measurement setups in electrical power systems. - Thanh Trung Do; Michael Jordan 004; Hauke Langkowski; Detlef Schulz (AMPS, 2016)