Methods and systems for integrated Volt/VAr control in electric network

US10135247B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Rayette Ann Fisher · Schenectady, US
• Wei Ren · Beijing, CN
• Murali Mohan Baggu Datta Venkata Satya · Glenville, US
• Felipe Antonio Chegury Viana · Niskayuna, US
• Krishna Kumar Anaparthi · Munich, DE
• Reigh Allen Walling · Clifton Park, US

Key dates

• Filing date: Oct 17, 2013
• Grant date: Nov 20, 2018
• Expiry date: May 28, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S40/20
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method and system for use in controlling an electric network are provided. The system includes an Integrated Volt-VAr Control (IVVC) component configured to determine optimization parameters for slow dynamics electromechanical devices and fast dynamics DER devices coupled to the network. The slow dynamics devices are controlled by a present state of the electric network and a voltage rise table that is adaptively updated in real-time using a command output, or a power flow-based complete optimization routine that generates optimal setpoints for the traditional controllable assets and for at least some of the fast dynamics DER devices. The fast dynamics devices are controlled locally using a control algorithm that uses a reactive power contribution based on IVVC settings, based on photo-voltaic (PV) plant active power variations, based on power factor, or based on a voltage of the local electric network.