A control method to enhance dynamic performance of parallel inverters in islanded microgrid

Kohansal, Mahdi; Moghani, Javad Shokrollahi; Abdi, B.; Gharehpetian, Gevork B.

doi:10.1109/acemp.2011.6490695

Cited by 13 publications

(8 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Droop controllers, which emulate the droop characteristics of synchronous generators, are proposed as power sharing controllers for MG generators [10]- [13]. This kind of controllers is based on local measurement and there are no communication signals between units.…”

Section: Fig 1 Mg Architecture Comprising Ms Loads and Control Dementioning

confidence: 99%

Droop Controller Limitation for Voltage Stability in an Islanded Microgrid

Kohansal¹,

Gharehpetian²,

Abedi³

et al. 2012

REPQJ

Self Cite

View full text Add to dashboard Cite

Abstract. The motivation to develop microgrids (MG), as a particular form of active networks is explained and presented as an effective solution for the control of grids. In MGs, with high level of penetration of Distributed Energy Resources, the stability becomes an important issue.Some control characteristics of elements such as droop coefficients in VSI highly affect voltage and frequency stability. In this paper, the changes in droop coefficient influencing the voltage stability of the microGrid are under investigation in islanded MG. The simulation results show the importance of the proposed limitation for the droop controller.

show abstract

Section: Fig 1 Mg Architecture Comprising Ms Loads and Control Dementioning

confidence: 99%

Droop Controller Limitation for Voltage Stability in an Islanded Microgrid

Kohansal¹,

Gharehpetian²,

Abedi³

et al. 2012

REPQJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…Considering Fig.4, when the total active power of load changes from P A to P B , the increase in the active power generation will be shared between the two inverters. This increase is divided between the inverters according to the slope of the droop lines [7][8][9][10].…”

Section: Power Sharingmentioning

confidence: 99%

Multi-objective optimization to improve transient performance of VSI in an off-grid micro-gird using imperialist competitive algorithm

Kohansal

Moghani

Rahmatian

et al. 2011

The 2nd International Conference on Control, Instrumentation and Automation

View full text Add to dashboard Cite

Micro-grids (MGs) are active networks known as an effective solution for the control of grids including high levels of Distributed Generation (DG). In off-grid MGs, DGs connected to Voltage Source Inverters (VSIs) enroll as controllers of voltage and frequency. These VSIs should share power between the DGs fairly. A precise power sharing may increase frequency drop. In this paper, a trade-off is obtained between power sharing and frequency behavior. A multiobjective function is defined including the aforementioned parameters. Imperialism Competitive Algorithm (ICA) is used for optimization process. The obtained parameters lead to the best performance of VSI controllers considering frequency behavior and power sharing.

show abstract

“…New technologies and renewable energy resources such as Micro‐Turbines, wind turbines, Fuel Cells (FC), and Photovoltaic (PV) cells in low voltage systems can be integrated into MGs. These MGs may provide reliable power and good power quality for loads, and, because the distance between loads and the resources is reduced, losses, too, can be decreased . An MG can operate as grid‐connected or isolated modes.…”

Section: Introductionmentioning

confidence: 99%

Induction machine-based flywheel energy storage system modeling and control for frequency regulation after micro-grid islanding

Arani

Zaker

Gharehpetian

2017

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary Imbalance between generation and consumption in each instant can result in frequency instability. A storage device that responds quickly to changes and is capable of energy injection or consumption in a microgrid (MG) can improve frequency stability. The Flywheel Energy Storage System (FESS) has this characteristic. In this paper, a detailed model of the FESS is presented, and its control strategies for frequency regulation are proposed and discussed. The field oriented control is used for machine‐side convertor control of FESS. Two MG islanding scenarios and the performance of the proposed control strategy are studied by MATLAB/Simulink. The simulation results show good FESS performance with regard to frequency changes in the MG.

show abstract

A control method to enhance dynamic performance of parallel inverters in islanded microgrid

Cited by 13 publications

References 18 publications

Droop Controller Limitation for Voltage Stability in an Islanded Microgrid

Droop Controller Limitation for Voltage Stability in an Islanded Microgrid

Multi-objective optimization to improve transient performance of VSI in an off-grid micro-gird using imperialist competitive algorithm

Induction machine-based flywheel energy storage system modeling and control for frequency regulation after micro-grid islanding

Contact Info

Product

Resources

About