Wind park with robust reactive power adjustment system and method for the operation thereof

US7606638B2 · kind B2 · utility

Assignee

• R E power Systems AG · DE

Inventors

• Jens Fortmann · Berlin, DE
• Heinz-Hermann Letas · Rosenfeld, DE

Key dates

• Filing date: Sep 30, 2005
• Grant date: Oct 20, 2009
• Expiry date: Mar 22, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E40/30
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A windpark includes at least two wind energy installations, each of which installations comprises a rotor, a generator driven by the rotor and a control device, and which are connected via connecting lines to a main line. The windpark also includes a linking point which connects the main line to a power transmission network, a parkmaster which is configured for power factor control and has communication lines for transmission of control signals to the wind energy installations, and a power-factor control section including a distributed regulator having a higher-level regulator located at the parkmaster which is configured to determine a nominal voltage in order to set a global power coefficient for the power which is emitted to the power transmission network and to emit the nominal voltage as a signal via the communication lines and lower-level regulators at the wind energy installations.