NDLI: Voltage sensitivity-based demand-side management to reduce voltage unbalance in islanded microgrids

Content Provider	IET Digital Library
Author	Çimen, Halil Çetinkaya, Nurettin
Abstract	Microgrids (MG) provide advantages such as providing energy supply to areas far from the distribution grid, efficient use of resources by supporting demand management and having a more dynamic grid. However, if an advanced control system is not implemented in the islanded MG, problems of power quality may arise. One of these problems is the voltage unbalance. Increasing the number of single-phase roof-mounted PV plants and the number of electric vehicle charging stations in recent times may negatively affect voltage unbalance. One of the methods used to mitigate this problem is the demand-side management (DSM). Here, a solution method based on DSM is presented for the voltage unbalance problem that may occur in an islanded MG. Thermostatically controlled loads, which are often used for DSM, are preferred as controllable loads. A new and novel control algorithm based on voltage sensitivity have been developed. Effects of TCLs on different buses and phases are determined with voltage sensitivity matrix including neutral components. The proposed control algorithm reduces successfully both the voltage unbalance factor and the number of controlled TCLs. The algorithm was tested with the PSCAD/EMTDC analysis software.
Starting Page	2367
Ending Page	2375
Page Count	9
ISSN	17521416
Volume Number	13
e-ISSN	17521424
Issue Number	Issue 13, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/13/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.5603
Journal	IET Renewable Power Generation
Publisher Date	2019-07-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Advanced Control System Control Algorithm Control of Electric Power System Controllable Loads Controlled TCLs Demand Management Distributed Power Generation Distribution Grid Distribution Network DSM Dynamic Grid Electric Vehicle Islanded MG Islanded Microgrid Optimisation Technique Photovoltaic Power System Power Distribution Control Power Distribution Fault Power Grid Power Supply Quality Power System Economics Power System Managemen Power System Operation Single-phase Roof-mounted PV Plant Solar Power Stations Thermostatically Controlled Load Transportation Voltage Control Voltage Sensitivity Matrix Voltage Sensitivity-based Demand-side Management Voltage Unbalance Problem
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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