Results 31 to 40 of about 4,357,992 (165)

A novel and easy‐to‐implement modulation scheme for reducing modulation complexity in modular multilevel converter

IET Power Electronics
Modulation strategy plays a key role in the operation of modular multilevel converters (MMC). Although many studies have been carried out on its optimization in MMC, the limitations of hardware implementation are seldom considered.
Zichen Wang, Zhijie Liu, Ke‐Jun Li, Jinxin Dou, Zhonglin Guo, Xiaoxue Ge   +5 more
doaj   +1 more source

Singular value decomposition-based dynamic response analysis of VSC-MTDC/AC systems for renewable energy integration

The Journal of Engineering, 2019
The dynamic performance of voltage source converter-based multi-terminal high-voltage direct current (VSC-MTDC) grid for large-scale renewable energy integration is becoming a concern.
Hua Ye, Yao Liu, Yanan Tang, Wei Pei, Li Kong   +4 more
doaj   +1 more source

Avid Convertors

, 2014
Avid Convertors in racks.https://repository.belmont.edu/ownphotos/1206/thumbnail ...
Ocean Way Nashville
core   +1 more source

Analysis and improvement of the reactive power cascade control strategy for MMC‐HVDC receiving‐end converter connected to weak grid

IET Generation, Transmission & Distribution
The weak AC grid in a modular multilevel converter modular multilevel converter based high voltage direct current (MMC‐HVDC) receiving‐end system requires faster reactive power support from the receiving‐end MMC.
Junhua Xu, Guopeng He, Yong Liu, Songqin Tang, Daiyu Xie, Mingyuan Chen   +5 more
doaj   +1 more source

Pumped energy storage system technology and its AC–DC interface topology, modelling and control analysis: a review

The Journal of Engineering, 2019
Pumped-storage hydropower plants can contribute to a better integration of intermittent renewable energy and to balance generation and demand in real time by providing rapid response generation. The utilisation of variable-speed pump-turbine units with a
Girmaw Teshager Bitew, Minxiao Han, Minxiao Han, Sifrash A. Mekonnen, Simiyu Patrobers, Zmarrak W. Khan, Luu K. Tuan   +6 more
doaj   +1 more source

Tuning harmonic absorption of voltage source converters

, 2010
This paper develops a tool for controlling the harmonic absorption of hysteretic controlled voltage source converters that are connected to a power system. Each VSC is controlled by a state feedback control input to a hysteretic comparator.
Zare, F, Ghosh, Arindam, Firuz Zare, Gerard Ledwich, Arindam Ghosh, Ledwich, Gerard, zare, F., Ledwich, G.   +7 more
core   +1 more source

Improving the performance of grid‐connected inverters during asymmetrical faults and unbalanced grid voltages

IET Generation, Transmission & Distribution
The increasing penetration of the distributed energy resources (DER) in the power grid, which, while having significant advantages, also pose significant challenges.
Sepideh Shabani, Mehdi Gholipour, Mehdi Niroomand   +2 more
doaj   +1 more source

Multi-hierarchy control strategy in abc coordinate for modular multilevel matrix converter in fractional frequency transmission system

The Journal of Engineering, 2019
This paper proposes a multi-hierarchy control strategy in abc coordinate for modular multilevel matrix converter (M^3C) in fractional frequency transmission system (FFTS).
Zhujian Ou, Guangzhu Wang
doaj   +1 more source

Origin of anomalous instability of grid‐forming converters tied to stiff grid

IET Renewable Power Generation, 2023
Grid‐forming (GFM) converter is believed to be highly promising in the future power systems, due to its ability of providing voltage and frequency support.
Zhenkun Hong, Hongsheng Xu, Zhuoqi Hou, Meng Zhan   +3 more
doaj   +1 more source

Topology for VSC transmission

, 2001
The increasing rating and improved performance of self-commutated semiconductor devices have made DC power transmission based on voltage-source power convertors (VSCs) possible. This technology is called VSC transmission.
Cartwright, P., Horton, P., Andersen, B., Xu, L., B.R. Andersen   +4 more
core   +1 more source