Comparison of Algorithms for Control of Loads for Voltage Regulation

Philip James Douglass, Xue Han, Shi You

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Autonomous flexible loads can be utilized to regulate voltag e on low voltage feeders. This paper compares two algorithms for controllin g loads: a simple voltage droop, where load power consumption is a varied in proportio n to RMS voltage; and a normalized relative voltage droop, which modifies the simpl e voltage droop by subtracting the mean voltage value at the bus and dividing by the standard deviation. These two controllers are applied to hot water heaters simul ated in a simple residential feeder. The simulation results show that both controllers r educe the frequency of undervoltage events. The simple droop controller delivers a widely different response depending on where the load is located on the feeder. In contr ast, all of the loads with the normalized relative droop controller have a similar res ponse
Original languageEnglish
Title of host publicationProceedings of the 2014 7th International Conference on PV-Hybrids and Mini-grids
Number of pages6
Publication date2014
Publication statusPublished - 2014
Event7th International Conference on PV-Hybrids and Mini-Grids - Bad Hersfeld, Germany
Duration: 10 Apr 201411 Apr 2014

Conference

Conference7th International Conference on PV-Hybrids and Mini-Grids
Country/TerritoryGermany
CityBad Hersfeld
Period10/04/201411/04/2014

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