Single-phase hybrid active power filter using single switch parallel active filter and simple passive filter

Rahman, Nor Farahaida Abdul; Kamal, Mustafar; Hasim, Ahmad Shukri Abu

doi:10.1109/peds.2009.5385660

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…Nowadays, two types of power filters are commonly used: passive [5] and active [6]. A passive power filter (PPF) consists of inductors and capacitors, and its circuit design is simple, but it has the following disadvantages [7]:…”

Section: Introductionmentioning

confidence: 99%

Least Mean Squares and Recursive Least Squares Algorithms for Total Harmonic Distortion Reduction Using Shunt Active Power Filter Control

et al. 2019

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This paper deals with the use of least mean squares (LMS, NLMS) and recursive least squares (RLS) algorithms for total harmonic distortion (THD) reduction using shunt active power filter (SAPF) control. The article presents a pilot study necessary for the construction of our own controlled adaptive modular inverter. The objective of the study is to find an optimal algorithm for the implementation. The introduction contains a survey of the literature and summarizes contemporary methods. According to this research, only adaptive filtration fulfills our requirements (adaptability, real-time processing, etc.). The primary benefit of the paper is the study of the efficiency of two basic approaches to adaptation ((N)LMS and RLS) in the application area of SAPF control. The study examines the impact of parameter settings (filter length, convergence constant, forgetting factor) on THD, signal-to-noise ratio (SNR), root mean square error (RMSE), percentage root mean square difference (PRD), speed, and stability. The experiments are realized with real current and voltage recordings (consumer electronics such as PC source without power factor correction (PFC), HI-FI amplifier, etc.), which contain fast dynamic transient phenomena. The realized model takes into account a delay caused by digital signal processing (DSP) (the implementation of algorithms on field programmable gate array (FPGA), approximately 1–5 μs) and a delay caused by the reaction time of the proper inverter (approximately 100 μs). The pilot study clearly showed that the RLS algorithm is the most suitable for the implementation of an adaptive modular inverter because it achieved the best results for all analyzed parameters.

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Section: Introductionmentioning

confidence: 99%

Least Mean Squares and Recursive Least Squares Algorithms for Total Harmonic Distortion Reduction Using Shunt Active Power Filter Control

et al. 2019

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“…At present, the main methods for harmonic detection and compensation are classified as Filter method [13], Wavelet Transform method [14], Neural Network method [15,16], FFT method [17,18], PQ method [19], and SRF method [20]. The authors have deeply studied these methods by reading a large number of literatures [21][22][23][24][25][26][27] and evaluated them from computation, response speed, reliability, and compensation precision. As shown in Table 1, A to E stand for the grades from highest to lowest, and their abilities of random harmonic detection and compensation are also compared.…”

Section: Introductionmentioning

confidence: 99%

Random Harmonic Detection and Compensation Based on Synchronous Reference Frame

Che

Yin

et al. 2017

Journal of Electrical and Computer Engineering

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Algorithms for harmonic detection and compensation are important guarantees for an active power filter (APF) to achieve the harmonic control function and directly determine the overall performance. Existing algorithms usually need a large amount of computation, and the compensation effect of specified order harmonic is also limited. DC side capacitor voltage at sudden change of load is affected by the algorithm as well. This paper proposes a new algorithm for harmonic detection and compensation based on synchronous reference frame (SRF), in which a band-pass filter with center frequency of 6 th harmonic is designed in fundamental frequency SRF to extract random harmonic current with two different frequencies of (6 ± 1)th harmonic in stationary reference frame. This new algorithm can rapidly detect any specified harmonic, and it can adjust the power factor to compensate reactive power. Meanwhile, it has few impacts on DC side capacitor voltage under complicated operating conditions such as sudden change of load. The correctness and effectiveness of this new algorithm are verified by simulation and experiment.

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“…Using an appropriate power filter for improving power quality is the solution to these problems. There are two types of power filters: passive [2] and active [3–5]. A passive power filter (PPF) consists of inductors and capacitors.…”

Section: Introductionmentioning

confidence: 99%

Development of Shunt‐Type Three‐Phase Active Power Filter with Novel Adaptive Control for Wind Generators

Chen

2015

The Scientific World Journal

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This paper proposes a new adaptive filter for wind generators that combines instantaneous reactive power compensation technology and current prediction controller, and therefore this system is characterized by low harmonic distortion, high power factor, and small DC-link voltage variations during load disturbances. The performance of the system was first simulated using MATLAB/Simulink, and the possibility of an adaptive digital low-pass filter eliminating current harmonics was confirmed in steady and transient states. Subsequently, a digital signal processor was used to implement an active power filter. The experimental results indicate, that for the rated operation of 2 kVA, the system has a total harmonic distortion of current less than 5.0% and a power factor of 1.0 on the utility side. Thus, the transient performance of the adaptive filter is superior to the traditional digital low-pass filter and is more economical because of its short computation time compared with other types of adaptive filters.

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Single-phase hybrid active power filter using single switch parallel active filter and simple passive filter

Cited by 8 publications

References 7 publications

Least Mean Squares and Recursive Least Squares Algorithms for Total Harmonic Distortion Reduction Using Shunt Active Power Filter Control

Least Mean Squares and Recursive Least Squares Algorithms for Total Harmonic Distortion Reduction Using Shunt Active Power Filter Control

Random Harmonic Detection and Compensation Based on Synchronous Reference Frame

Development of Shunt‐Type Three‐Phase Active Power Filter with Novel Adaptive Control for Wind Generators

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