Improvement of Power Quality Using Adaptive Shunt Active Filter

Tey, L.H.; So, P.L.; Chu, Yun Chung

doi:10.1109/tpwrd.2004.838641

Cited by 160 publications

(101 citation statements)

References 12 publications

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“…Shunt active filter is employed to control the inverter pulses. Sliding mode controller is proposed in this paper, which is a non-linear control method to suppress harmonics [16] and reactive power compensation to improve power quality [2]. Shunt active filter with SVC FACTS devices implemented using Sliding Mode Controller (SMC) is shown in Figure 1.…”

Section: Proposed Methodologymentioning

confidence: 99%

Power quality improvement and reactive power compensationusing enhancedsliding mode controllerbased shunt active power filter and static VAR compensator

Rajesh¹,

Rajeswari²

2018

IJET

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The power quality is the challenging criteria in all equipment's at all levels comprise industrial sectors and consumer places. Some parameters are very sensitive which may affect and disturb the power quality. These parameters are harmonic current, power compensation and voltage sag. Providing the source without these parameters with efficient power quality is essential. Hence by selecting proper device the power output may reach without any interruption along with linear, non-linear and unbalanced loads. This paper introduces a Sliding Mode Controller (SMC), a very effective controller implemented with Shunt active filter and Static VAR Compensator (SVC) FACTS device which increases the reactive power compensation and suppresses the harmonic to enhance the system performance with high reliability.

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Section: Proposed Methodologymentioning

confidence: 99%

Power quality improvement and reactive power compensationusing enhancedsliding mode controllerbased shunt active power filter and static VAR compensator

Rajesh¹,

Rajeswari²

2018

IJET

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“…In this work, I F und is extracted using an ANN-based harmonic extraction algorithm [16,17]. [1,2,19,20].…”

Section: Dc-link Voltage Control Algorithmsmentioning

confidence: 99%

Significant insights into the operation of DC-link voltage control of a shunt active power filter using different control algorithms: a comparative study

Rahman¹,

Radzi²,

Soh³

et al. 2017

Turk J Elec Eng & Comp Sci

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Other considered parameters are the ripple factor (RP) of DC-link voltages, estimated and measured DC-link charging currents, and total harmonic distortion (THD) value of supply currents. Thus, this study provides new insights into the operation of DC-link voltage control using different control algorithms. According to the simulation results, the SAPF using the SDVCA has shown better performance than using the CDVCA. By using the SDVCA, the charging process of a DC-link capacitor starts almost instantaneously. Additionally, the overshoot, settling time, and RF of DC-link voltages are reduced. Other than that, THD values of supply currents are improved, by generating low ripple of estimated DC-link charging currents. Experimental validation of the SAPF using the SDVCA is also presented.

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“…The synchronizer algorithm is used to provide a sinusoidal referencing signal to the harmonics extraction algorithm and the DC-Bus voltage regulation algorithm governed by the self-charging technique [37]- [39]. Meanwhile, the split capacitors voltage balancing is achieved via the neutral point voltage control algorithm [40]- [42] which adjusts the incremental time interval according to the detected instantaneous split capacitor voltages ( and ).…”

Section: Proposed Sapf With Control Strategiesmentioning

confidence: 99%

“…The simplification is implemented based on the fact that the zero-sequence current does not exist in balanced three-phase systems [9], [47], [48]. The SAPF is mainly designed to operate in a balanced three-phase system in which the source voltage is assumed to be purely sinusoidal [6], [37], [39]. Thus, the zero-sequence component can be excluded from the calculation.…”

Section: B Proposed Improvements and Simplificationsmentioning

confidence: 99%

A Simplified Synchronous Reference Frame for Indirect Current Controlled Three-level Inverter-based Shunt Active Power Filters

Hoon¹,

Radzi²,

Hassan³

et al. 2016

Journal of Power Electronics

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This paper presents a new simplified harmonics extraction algorithm based on the synchronous reference frame (SRF) for an indirect current controlled (ICC) three-level neutral point diode clamped (NPC) inverter-based shunt active power filter (SAPF). The shunt APF is widely accepted as one of the most effective current harmonics mitigation tools due to its superior adaptability in dynamic state conditions. In its controller, the SRF algorithm which is derived based on the direct-quadrature (DQ) theory has played a significant role as a harmonics extraction algorithm due to its simple implementation features. However, it suffers from significant delays due to its dependency on a numerical filter and unnecessary computation workloads. Moreover, the algorithm is mostly implemented for the direct current controlled (DCC) based SAPF which operates based on a non-sinusoidal reference current. This degrades the mitigation performances since the DCC based operation does not possess exact information on the actual source current which suffers from switching ripples problems. Therefore, three major improvements are introduced which include the development of a mathematical based fundamental component identifier to replace the numerical filter, the removal of redundant features, and the generation of a sinusoidal reference current. The proposed algorithm is developed and evaluated in MATLAB / Simulink. A laboratory prototype utilizing a TMS320F28335 digital signal processor (DSP) is also implemented to validate effectiveness of the proposed algorithm. Both simulation and experimental results are presented. They show significant improvements in terms of total harmonic distortion (THD) and dynamic response when compared to a conventional SRF algorithm.

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Improvement of Power Quality Using Adaptive Shunt Active Filter

Cited by 160 publications

References 12 publications

Power quality improvement and reactive power compensationusing enhancedsliding mode controllerbased shunt active power filter and static VAR compensator

Power quality improvement and reactive power compensationusing enhancedsliding mode controllerbased shunt active power filter and static VAR compensator

Significant insights into the operation of DC-link voltage control of a shunt active power filter using different control algorithms: a comparative study

A Simplified Synchronous Reference Frame for Indirect Current Controlled Three-level Inverter-based Shunt Active Power Filters

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