Search
Now showing items 1-9 of 9
A dual three-phase induction machine based flywheel storage system driven by modular multilevel converters for fault ride through in HVDC systems
(
IEEE Computer Society
, 2016 , Conference Paper)
One of the main challenges of voltage source converter based high voltage direct current (VSC-HVDC) transmission systems is the AC faults at the grid side. This work introduces the integration of multiphase induction machine ...
Power angle control of grid-connected capacitor-tapped multi-module voltage source converter
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Conference Paper)
HVDC transmission suits transmitting large amounts of renewable energy power over long distances with low transmission losses. The Capacitor-Tapped Multi-module Converter (CT-MC) can be employed effectively to integrate ...
Half-bridge modular multilevel-based HVDC converters with external pre-charged capacitors for dc fault current suppression capability
(
Institution of Engineering and Technology
, 2016 , Conference Paper)
Half-Bridge Modular Multilevel Converters (HB-MMCs) are defenseless against DC side faults. Different types of DC Circuit Breakers (DCCBs) assisted with arrester banks/damping resistors such as solid-state CBs and hybrid ...
HVDC shunt tap based on series-input parallel-output DC-AC multi-module VSCs with DC voltages balancing
(
Institution of Engineering and Technology
, 2014 , Conference Paper)
Conventionally, tapping-off a small amount of power from an HVDC transmission line to a three-phase local network can be achieved using a DC-to-AC voltage source converter (VSC) followed by a step down transformer. In order ...
Generalized power transmission control of VSC-based multi-terminal HVDC systems for offshore wind farms integration
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
In this paper, a generalized power transmission control method is developed for voltage source converter (VSC)-based multi-terminal HVDC systems. The droop characteristics of the multi-terminal HVDC system are used to ...
A grid-connected HVDC shunt tap based on series-input parallel-output DC-AC multi-module 2-level voltage source converters
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Tapping-off a small amount of power from an HVDC transmission line to a three-phase local grid can be achieved by using shunt or series HVDC taps. This paper proposes a new grid-connected HVDC shunt tap. The proposed tap ...
HVDC shunt tap based on series-input parallel-output DC-AC multi-module VSCs with DC voltages balancing
(
Institution of Engineering and Technology
, 2014 , Conference Paper)
Conventionally, tapping-off a small amount of power from an HVDC transmission line to a three-phase local network can be achieved using a DC-to-AC voltage source converter (VSC) followed by a step down transformer. In order ...
Fault ride-through capability enhancement based on flywheel energy storage system for wind farms connected via VSC high voltage DC transmission
(
Institution of Engineering and Technology
, 2012 , Conference Paper)
This paper proposes a recovery strategy for wind energy-fed voltage source converter high voltage DC transmission systems, capable of maintaining power balance between the AC and DC sides during different AC faults. This ...
Modular multilevel structure of a high power dual active bridge DC transformer with stepped two-level output
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
This paper addresses the issues of dc voltage matching and dc fault protection in potential super-grids. An approach for high power dc-dc conversion is proposed and analyzed. A front-to-front connection of modular-multilevel ...