Impact of photovoltaic and biogas power plant on harmonics in distribution network

• Published in: IET renewable power generation Vol. 14; no. 1; pp. 110 - 117
• Main Authors: Klaić, Zvonimir, Knežević, Goran, Primorac, Mario, Topić, Danijel
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 06.01.2020
• Subjects: biofuel; biogas power plant; biomass power plant; computer model; current harmonics; DIgSILENT Power Factory; distributed power generation; distribution network; distribution networks; harmonic behaviour analysis; harmonic distortion; inverter; invertors; nonlinear loads; photovoltaic power plants; photovoltaic power systems; power grids; power quality; power supply quality; power system harmonics; PV power plants; Special Section: Medpower 2018 Selected Papers; synchronous generator powers; synchronous generators; synchronous machine; THD; voltage harmonics source; distribution networks; distributed power generation; DIgSILENT Power Factory; synchronous generator powers; synchronous machine; THD; invertors; synchronous generators; power grids; biomass power plant; power system harmonics; current harmonics; computer model; biofuel; photovoltaic power systems; harmonic distortion; voltage harmonics source; inverter; power supply quality; biogas power plant; harmonic behaviour analysis; power quality; distribution network; PV power plants; nonlinear loads; photovoltaic power plants
• ISSN: 1752-1416; 1752-1424; 1752-1424
• DOI: 10.1049/iet-rpg.2019.0528

Here, the impacts of biogas power plants and photovoltaic (PV) power plants on the power quality in the distribution network are presented and analysed. The biogas power plant's influence on the current harmonics is explored, as a synchronous generator powers the biogas power plant, and the PV plants are connected to the distribution network via the inverter. All the analyses are based on actual measurements that are performed in the last 10 years. Results of the analysis of these numerous measurements were a challenge for investigation how large share of PV systems in distribution network with non-linear loads influence on THD from one side and how biogas power plant with a synchronous generator can improve THD from the other side. In order to investigate interaction of the biomass power plant and PV power plants on the power quality in distribution network, computer model was developed in DIgSILENT Power Factory where PV power plant and household were modelled as a source of current harmonic injections and biomass power plant was modelled as synchronous machine, as a source of voltage harmonics. Analysis of harmonic behaviour in different scenarios is examined through the performed simulations.