Method for providing control power using an energy store having variable deadband width when providing the control power

US9748775B2 · kind B2 · utility

Assignees

• EVONIK DEGUSSA GMBH · DE
• STEAG Power Saar GmbH · DE

Inventors

• Georg Markowz · Alzenau, DE
• Wolfgang Schweissthal · Mandelbachtal, DE
• Carsten Kolligs · Bottrop, DE
• Holger Brezski · Reiskirchen, DE
• Anna Flemming · Frankfurt, DE
• Dennis Gamrad · Voerde, DE
• Sebastien Cochet · Oberhausen, DE

Key dates

• Filing date: Oct 29, 2012
• Grant date: Aug 29, 2017
• Expiry date: Feb 16, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02J7/00
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method providing control power for an electricity network in which at least one energy store supplies energy to the electricity network and/or takes up energy from the electricity network dependent on a frequency deviation from a desired frequency of the electricity network, a deadband being prescribed around the desired frequency. The frequency deviation from the network frequency is measured with greater accuracy than a width of the deadband and a bandwidth within the deadband is chosen dependent on a charging state of the energy store, with control power being provided outside the bandwidth. A device carrying out the method includes at least one energy store and a control system controlling control power of the energy store in an open-loop or closed-loop manner, the energy store being connected to an electricity network such that energy can be fed into the electricity network and can be removed from the electricity network.