An advanced cascade controller for series-connected VSC for voltage dip mitigation
Paper in proceedings, 2005

Power electronics converters connected in series with the grid can provide protection of sensitive processes against voltage dips. In this paper, an advanced cascade controller for series-connected voltage source converter (VSC), constituted by an outer voltage loop and an inner current loop, is presented. Positive and negative sequence components of voltage and current are controlled separately to achieve perfect compensation of unbalanced dips. Limitation of the VSC output voltage and compensation of the computational time delay are included in the current controller for both sequence components. Experimental results for the series-connected VSC with the proposed cascade controller under balanced and unbalanced voltage dips are presented.

power quality

dynamic sag compensators

vector current controller.

voltage source converter

cascade controller

Author

Massimo Bongiorno

Chalmers, Energy and Environment, Electric Power Engineering

Jan Svensson

Ambra Sannino

IEEE Industrial Application Society (IAS)

Vol. 2 873-880

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

More information

Created

10/6/2017