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Author: search.filters.author.Boonseng, R.Subject: search.filters.subject.PPF

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    Field Experience Hybrid Power Filter for Power Quality Improvement in Industrial Plants
    (2019-10-01)
    Inwanna, W.
    ;
    Boonseng, C.
    ;
    Boonseng, R.
    ;
    Kularbphettong, K.
    This paper presents a simple of harmonic filters design to minimize harmonic distortion caused by a harmonic source such as power electronic device. To avoid problem caused by the harmonics producing power electronic devices, the Hybrid Power Filters System (HPFs) are presented. The analysis includes the basic principles of harmonic filter. Passive Power Filter (PPF) can be designed by the KMITL Program. Surplus harmonic can be removed by active power filter(APF). The major objectives in the study are to improve the power factor, to reduced current and voltage distortion and to reduce resonance problems at a system. The results show that the HFs are a very appropriate solution for most typical harmonic problems and power factor correction for improvement in industrial plants.
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    The 3rd Harmonic current and Power Quality Improvements of Data Centers Using Hybrid Power Filters
    (2019-08-01)
    Boonseng, C.
    ;
    Boonseng, R.
    ;
    Kularbphettong, K.
    This paper proposes a reduced 3<sup>rd</sup> harmonic current of server power supply units which effects of heating neutral cables and transformer. The data centers require the operation of many parallel-connected switch mode power supply on the same bus and transformer. Such a system significantly increases the high neutral current and power quality problems on the distribution network. Finally, using the Hybrid Power Filter System(HPFs) to solve this problem, the results can reduce distortion in current. The HPF is the combination of Active Power Filter (APF) and Passive Power Filter (PPF) which mostly use for reducing 3<sup>rd</sup>, 5<sup>th</sup> currents and power quality improvements of the system.