Impact of Distribution System’s Non-Linear Loads with Constant Power on Grid Voltage
article
Today’s electrical appliances are more and more built with and controlled by power electronics and processors, and their number is growing. This development can bring both advantages and disadvantages for the power quality of the electricity supply system. An advantage for example is the growing number of home appliances that are equipped with a power factor corrector front-end. This type of appliance behaves as a resistive load and has a very good power factor. A disadvantage is the constant power load character that shows up when the appliance is stabilized against grid voltage fluctuations by a power electronic frontend. This paper investigates the oscillatory grid voltage effect of certain amounts of constant power loads in a small isolated grid system and the impact on the quality of the voltage. Results of computer simulations show that an oscillatory grid voltage due to an interaction of a constant power load with the voltage control system of a generator is possible and can be reduced by changing the parameters of the voltage control system.
TNO Identifier
482370
Source
European Transactions on Electrical Power, 21(1), pp. 698-711.
Pages
698-711
Files
To receive the publication files, please send an e-mail request to TNO Repository.