Results 21 to 30 of about 3,181 (183)

A novel active damping control based on grid-side current feedback for LCL-filter active power filter

Energy Reports, 2020
LCL filter is widely used in grid-connected converters for good harmonic mitigation performance. However, resonance poles of LCL filter challenge system stability, especially in a digital control system.
Tingting Gao, Yanqiang Lin, Dongdong Chen, Long Xiao   +3 more
doaj   +1 more source

Experimental Investigation of the Frequency Response of an LC-Filter and Power Transformer for Grid Connection

Energies, 2023
The power delivered by a voltage source inverter needs to be filtered to fulfill grid code requirements. A commonly used filter technology is the LCL-filter.
Christoffer Fjellstedt, Johan Forslund, Karin Thomas   +2 more
doaj   +1 more source

Optimized damping for LCL filters in three-phase voltage source inverters coupled by power grid

Journal of Modern Power Systems and Clean Energy, 2017
The application of LCL filters has become popular for inverters connected to the power grid due to their advantages in harmonic current reductions. However, the power grid in a distribution system is non-ideal, presenting itself as a voltage source with ...
Meng Huang, Jianjun Sun, Yu Peng, Xiaoming Zha   +3 more
doaj   +1 more source

A Theoretical Concept of Decoupled Current Control Scheme for Grid-Connected Inverter with L-C-L Filter

Applied Sciences, 2021
This paper proposes a nonlinear decoupled current control scheme for a grid-connected inverter with LCL filter. Decoupling the active and reactive current control channels is one of the main demands in the control of inverters.
Mohamad Amin Ghasemi, Seyed Fariborz Zarei, Saeed Peyghami, Frede Blaabjerg   +3 more
doaj   +1 more source

Single-Sensor Control of LCL-Filtered Grid-Connected Inverters [PDF]

IEEE Access, 2019
Owing to the filter resonance and background harmonics, the current control for the LCL-filtered grid-connected inverter should be carefully designed to ensure stable operation. Prior-art current control methods normally require extra sensors to achieve the damping of the resonance, or sophisticated active damping should be employed.
Mei Su 0001, Bin Cheng 0007, Yao Sun 0001, Zhongting Tang, Bin Guo 0003, Yongheng Yang, Frede Blaabjerg, Hui Wang 0069   +7 more
openaire   +4 more sources

A half-bridge distributed static compensator with a DC-link filter capacitor of a reduced size LCL filter

Frontiers in Energy Research, 2022
Distributed static compensators (DSTATCOMs), composed of power converters and passive filters, have been extensively utilized in distribution systems to improve their power quality. For the selection of passive filters, LCL filters with smaller sizes and
Xiangjian Meng, Jingyang Fang
doaj   +1 more source

A Systematic Method for Designing a PR Controller and Active Damping of the LCL Filter for Single-Phase Grid-Connected PV Inverters

Energies, 2014
The Proportional Resonant (PR) current controller provides gains at a certain frequency (resonant frequency) and eliminates steady state errors. Therefore, the PR controller can be successfully applied to single grid-connected PV inverter current control.
Ningyun Zhang, Houjun Tang, Chen Yao
doaj   +1 more source

Analysis and design of LCL filter based synchronverter [PDF]

2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
Electrical energy generation is evolving from centralized towards distributed energy resources (DER) like wind and solar power plants. In such power systems, new challenges arise for the design of voltage source converter (VSC) control strategies.
Rosso, Roberto, Cassoli, Jair, Engelken, Soenke, Buticchi, Giampaolo, Liserre, Marco   +4 more
openaire   +1 more source

Performance Evaluation of Sinusoidal Power Supplies for Ozone Generation in Water Purification Applications

Sensors
Ozone generation is a water disinfection method, superior to chlorine in terms of fewer byproducts and no residual taste. However, its high production cost limits its widespread adoption. This paper designs an ozone generation sinusoidal power supply for
Mostafa M. Shibl, Omar Shouman, Ahmed Mahmoud, Ahmed M. Massoud   +3 more
doaj   +1 more source

Research on Adaptive Suppression of LCL Converter Resonance Grid-Connected System

Journal of Electrical and Computer Engineering, 2020
LCL-type converters are widely used in grid-connected systems due to their small size and good filtering performance. However, the resonance suppression problem brought by the LCL filter cannot be ignored.
Junwei Li, Yafang Tang, Junke Li
doaj   +1 more source