[논문]Comparison and Study of Active and Hybrid Power Filters for Compensation of Grid Harmonics

Gutierrez, Bryan; Kwak, Sang-Shin

doi:10.6113/jpe.2016.16.4.1541

Comparison and Study of Active and Hybrid Power Filters for Compensation of Grid Harmonics 원문보기

Journal of power electronics, v.16 no.4, 2016년, pp.1541 - 1550

Gutierrez, Bryan (School of Electrical and Electronics Engineering, Chung-Ang University) , Kwak, Sang-Shin (School of Electrical and Electronics Engineering, Chung-Ang University)

Abstract ▼ AI-Helper

This paper presents a theoretical analysis and comparisons of active power filter (APF) and hybrid power filter (HPF) systems, given terminal constraints of harmonic compensations in nonlinear loads. Despite numerous publications for the two types of filters, the features and differences between them have not been clearly explained. This paper presents a detailed analysis of the operations of a HPF inverter along with those of passive power filters (PPFs). It also includes their effects on the power factor at the grid. In addition, a theoretical analysis and a systematic comparison between the APF and HPF systems are addressed based on system parameters such as the source voltage, output power, reactive component size, and power factor at the grid terminals. The converter kVA ratings and dc-link voltage requirements for both topologies are considered in the presented comparisons

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문제 정의

The objective of this paper is to clearly address and compare the features and requirements of APF and HPF systems. A comprehensive and detail rating analysis is presented for APF and the HPF inverters with a typical diode rectifier load.

성능/효과

In addition, the operating regions related to the power factor at the grid terminals of HPF systems move from the UC region through the FC to the OC region, with an increasing PPF capacitance, increasing PPF inductance, decreasing input load inductance, and decreasing load output power. Due to the fixed reactive power compensation by the PPF in HPF systems, the power factor at the grid terminals of the HPF varies considerably when the load output power changes. Thus, in order to maintain power factors close to unity, HPF systems might not be appropriate in areas with a wide variation of the load output power.
Thus, in order to maintain power factors close to unity, HPF systems might not be appropriate in areas with a wide variation of the load output power. However, the HPF inverter shows, in general, lower kVA ratings than the APF inverters at the outlined range values of the PPF components. Thus, the HPF inverter, with an appropriate selection of reactive components for reactive power compensation, gives performance that is similar to that of the APF inverter but with a less costly topology.
The rating of the HPF inverter is sensitive to a variation in the PPF capacitance, whereas the PPF inductance has a reduced effect on it. In addition, the operating regions related to the power factor at the grid terminals of HPF systems move from the UC region through the FC to the OC region, with an increasing PPF capacitance, increasing PPF inductance, decreasing input load inductance, and decreasing load output power. Due to the fixed reactive power compensation by the PPF in HPF systems, the power factor at the grid terminals of the HPF varies considerably when the load output power changes.
Thus, the HPF inverter, with an appropriate selection of reactive components for reactive power compensation, gives performance that is similar to that of the APF inverter but with a less costly topology. The dc-link voltage requirement is shown to be much lower in the HPF inverter when the capacitance in the PPF is large enough to reduce the reactance of the PPF. This results in savings due to the reduced semiconductor ratings in the HPF inverter and the dc-link capacitor rating.
The ratings of the HPF inverter and the power factor at the grid the terminals in HPF systems are analyzed in detail in terms of the circuit parameters such as the source voltage, output power, and reactive components. The rating of the HPF inverter is sensitive to a variation in the PPF capacitance, whereas the PPF inductance has a reduced effect on it. In addition, the operating regions related to the power factor at the grid terminals of HPF systems move from the UC region through the FC to the OC region, with an increasing PPF capacitance, increasing PPF inductance, decreasing input load inductance, and decreasing load output power.
The dc-link voltage requirement is shown to be much lower in the HPF inverter when the capacitance in the PPF is large enough to reduce the reactance of the PPF. This results in savings due to the reduced semiconductor ratings in the HPF inverter and the dc-link capacitor rating.
Due to the fixed reactive power compensation by the PPF in HPF systems, the power factor at the grid terminals of the HPF varies considerably when the load output power changes. Thus, in order to maintain power factors close to unity, HPF systems might not be appropriate in areas with a wide variation of the load output power. However, the HPF inverter shows, in general, lower kVA ratings than the APF inverters at the outlined range values of the PPF components.
However, the HPF inverter shows, in general, lower kVA ratings than the APF inverters at the outlined range values of the PPF components. Thus, the HPF inverter, with an appropriate selection of reactive components for reactive power compensation, gives performance that is similar to that of the APF inverter but with a less costly topology. The dc-link voltage requirement is shown to be much lower in the HPF inverter when the capacitance in the PPF is large enough to reduce the reactance of the PPF.

참고문헌 (20)

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상세보기
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상세보기
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원문보기 상세보기
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상세보기
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상세보기
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상세보기
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원문보기 상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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원문보기 상세보기
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상세보기
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원문보기 상세보기
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상세보기
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Comparison and Study of Active and Hybrid Power Filters for Compensation of Grid Harmonics 원문보기

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