Comparison of Harmonic Solutions to Power Quality improvement for Grid-Connected Solar Rooftop Applications in Industrial Plants
- 1 July 2020
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2020 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia)
Abstract
The solar rooftop installation is currently grown in Thailand, when many solar inverters are connected to the grid. It impacts existing electrical systems such as the harmonic resonance occur and malfunction of sensitive equipment. In addition, electrical circuit breakers, contactors, fuses, and power capacitors are damaged, which can affect electrical quality in the system. The impact of solar rooftop installation on the reliability and security of existing power grids must be urgently analyzed. This paper examines and selects methods to reduce the harmonic effects caused by the increase in solar inverter installation in existing power systems. The main objective of the study is to reduce distortion and harmonic resonance problems in the system, as well as to select suitable methods for solving problems. Practically, it is ensured that the passive power filter system (PPFs), active power filter system (APFs) and hybrid power filter system (HPFs) are the best solution applied for grid-connected system. A method for selecting a suitable solution for solving problems in each plant was proposed. A comparison of the solutions to all three methods has been analyzed for maximum benefit. Guidelines, procedures, and operational requirements can be applied in industrial plants.Keywords
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