Voltage and current THD in microgrid with different DG unit and load configurations
@inproceedings{Laaksonen2008VoltageAC, title={Voltage and current THD in microgrid with different DG unit and load configurations}, author={Hannu Laaksonen and Kimmo Kauhaniemi}, year={2008} }
After microgrid transition from the normal operation to the islanded operation the system impedance changes considerably and it affects on the harmonic voltages of the microgrid. In this paper the voltage and current THD before and after islanding are studied with different microgrid configurations. Simulations are also made by applying negative sequence filtering in control system of converters to reduce the voltage and current THD in microgrid during unsymmetrical load. Based on the studies…
Figures and Tables from this paper
8 Citations
Power Quality in AC Islanded Microgrids: Technical Framework and State of the Art Review
- EngineeringIngeniería e Investigación
- 2020
This paper presents a comprehensive literature review of existing studies on power quality disturbances in islanded microgrids and identifies the most relevant needs for future research on this topic.
Synchronized re-connection of island operated LV microgrid back to utility grid
- Engineering2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)
- 2010
Issues related to the re-connection of low voltage (LV) microgrid are studied and different functions to enable synchronized re- connection are presented with various DG unit configurations through simulation studies with PSCAD simulation software.
Protection Principles for Future Microgrids
- EngineeringIEEE Transactions on Power Electronics
- 2010
Realization of future low-voltage (LV) microgrids requires that all technical issues, such as power and energy balance, power quality and protection, are solved. One of the most crucial one is the…
Experiences from a back-to-back converter fed village microgrid
- Engineering2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe)
- 2010
The capability of the converter is shown to be adequate to feed enough short circuit current to guarantee the correct operation of the fuse based protection of the microgrid.
Stability, voltage performance and power sharing issues of inverter-based microgrids via LMI optimization
- Engineering
- 2018
It will be shown via simulation that power sharing between inverters is achieved without causing stability and voltage performance problems, and different LMI problems are proposed to design decentralized inverter controllers to guarantee the asymptotic stability of an overall microgrid.
Experiences from a Back-toBack Converter fed Village
- Engineering
This paper presents the first measurement results of a back-to-back converter fed island microgrid consisting of several holiday cottages in Central Finland. The voltage stability is shown to improve…
Islanding Detection During Intended Island Operation of Nested Microgrid
- Engineering2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)
- 2018
Healthy and faulty islanding detection of LV network connected generation unit during nested (MV+LV) microgrid islanded operation were studied by simulations with PSCAD model from real-life smart grid pilot.
A q component‐based adaptive protection coordination optimisation using overcurrent relays in coordination with fuses for hybrid microgrid
- EngineeringIET Generation, Transmission & Distribution
- 2021
Correspondence Manjeet Singh, C-101, Electrical & Instrumentation Engineering Department, Thapar Institute of Engineering & Technology, Patiala, Patiala, Pin Code147004, Punjab, India. Email:…
References
SHOWING 1-9 OF 9 REFERENCES
Sensitivity analysis of frequency and voltage stability in islanded microgrid
- Engineering
- 2007
This paper studies the voltage and frequency stabil ity of an islanded microgrid and the sensitivity of these qua ntities to certain changes in system configuration. In convent ional power systems…
Fault type and location detection in islanded microgrid with different control methods based converters
- Engineering
- 2007
In this paper the fault type and location detection in an islanded low voltage (LV) distribution network base d microgrid with converters applying different contro l methods is studied. In the future…
A new phase detecting method for power conversion systems considering distorted conditions in power system
- EngineeringConference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370)
- 1999
A new phase detecting method is proposed for PWM rectifiers and active filters considering distorted utility conditions that does not cause harmonics in the reference signal by adequately eliminating unbalance components and high-order harmonic terms in the utility voltage.
Electrical Power Systems Quality, Second Edition, McGraw-Hill
- Beaty,
- 2002
New Concept for Power Quality Management in Microgrid with Energy Storage Based Power Quality Compensator
- Kauhaniemi,
- 2008
S-K
- Sul
- 1999
S
- Santoso, H.W. Beaty
- 2002
K
- Kauhaniemi
- 2007
Sul, 1999, "A New Pha se Detecting Method for Power Conversion Systems Considering Distorted Conditions in Power System
- IEEE IAS Annual Meeting,
- 1999