Simple and Reliable Harmonic Mitigation Strategy in Power Electronic Converter for Grid Integration of Renewable Energy Resources

In the modern era, most of the utility grid is connected with Renewable Energy resources (RERs). In addition to this, many power electronic converters and reactive power compensating devices are also incorporated into the existing grid. This makes the system complicated. Penetration of renewable energy resources affect many power system parameters like grid stability, quality of power, reactive power balance and Sufficient energy utilization. However, the Distributed Generation (DG) towards the power electronic interface creates some critical power quality events such as reactive power management, harmonics and voltage profile which makes the distributed system become a polluted one. This paper depicts the review of modelling and incorporation of various reactive power compensating devices like TCSC, SVC and STATCOM into RES. Power generation model of solar, wind and fuel farm is discussed in this paper. Reactive power compensating devices and its location and sizing are important for the stable and secure operation of the electric grid. Consequently, power quality issues, real-time interconnection issues and policies related to reactive power management are in this paper.

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Role of fault ride-through strategies for power grids with 100% power electronic-interfaced distributed renewable energy resources

Wiley Interdisciplinary Reviews Energy and Environment ◽

10.1002/wene.292 ◽

2018 ◽

Vol 7 (4) ◽

pp. e292 ◽

Cited By ~ 8

Author(s):

Lasantha Meegahapola ◽

Manoj Datta ◽

Inam Nutkani ◽

James Conroy

Keyword(s):

Renewable Energy ◽

Power Grids ◽

Energy Resources ◽

Power Electronic ◽

Renewable Energy Resources ◽

Fault Ride Through

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Performance Analysis of Three-Phase Solar PV Integrated UPQC Using Space Vector Technique

Issue 4 - Journal of Science and Technology ◽

10.46243/jst.2020.v5.i5.pp140-148 ◽

2020 ◽

pp. 140-148

Keyword(s):

Renewable Energy ◽

Reactive Power ◽

Renewable Energy Sources ◽

Energy Resources ◽

Power Electronic ◽

Grid System ◽

Solar Pv ◽

Renewable Energy Resources ◽

Micro Grid ◽

Micro Grids

: Due to the increase of load demand in future, the generation must also increase. The use of traditional resources such as coal, diesel fuels etc., causes global warming which is leading us to shift to renewable energy resources. Renewable energy resources may in include solar, wind, tidal as the source for production. These are used in small quantities as Distribution Generators (DG) at different locations in a bus system. As the generation of these sources is less when connected to grid, we call them as micro-grids. These micro grids generally use these DGs to distribute power to loads, and involve power electronic elements to control the generation. It induces energy into the system but also create a problem of harmonic distortions and voltage sags. To eliminate these sags and harmonics in the micro grid system caused by the power electronic devices employed by the renewable sources, we induce a UPQC (Unified Power Quality Conditioner) system. The UPQC system eliminates the harmonics in the systems and restores the voltage of the micro-grid system. We introduce a new topology called instantaneous reactive power (IRP) theory in the UPQC control to operate in a more efficient way, by utilizing RES (Renewable Energy Sources) at the DC-link. The RES support the UPQC system by injecting the active power generated by the resources through DC-link.

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