Model predictive control of PV-based shunt active power filter in single phase low voltage grid using conservative power theory

Taher, Seyed Abbas; Alaee, Mohammad Hosein; Arani, Zahra Dehghani

doi:10.1109/pedstc.2017.7910332

Cited by 19 publications

(12 citation statements)

References 12 publications

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“…The single-phase reactive instantaneous energy is defined by the product between the impartial integral of voltage and current. It can be expressed by Equation (8):…”

Section: Power Energy and Current Termsmentioning

confidence: 99%

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Sampling Rate Impact on Electrical Power Measurements Based on Conservative Power Theory

et al. 2021

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This article presents a study of the sampling rate effect on electrical power measurements whose definitions are based on the Conservative Power Theory (CPT). The definitions of active power and reactive power of the CPT were applied in the MATLAB® software by varying the sampling rate and using a digital power meter as a reference. The measurements were performed in scenarios with linear and non-linear loads. Due to the usage of an integral in the CPT calculus, an error was verified associated with the reactive power being inversely proportional to the sampling rate. From the present study, it is possible to conclude that depending on the sample rate, the errors associated with the reactive power measurements are unacceptable and make the CPT implementation unfeasible. The results also presented effective information about the minimal sampling rate needed to make these errors neglected and to assist in choosing suitable microprocessors for the digital implementation of the CPT. It is worth mentioning that this paper was limited to assess how accurate the measurements of active and reactive powers were and important to highlight that the CPT has the additional contribution of dealing with distortion currents and consequently new portions of powers. For the latter, the influence of sampling rate may be crucial and new lines of investigation are motivated.

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“…The single-phase reactive instantaneous energy is defined by the product between the impartial integral of voltage and current. It can be expressed by Equation (8):…”

Section: Power Energy and Current Termsmentioning

confidence: 99%

“…The CPT is also used to compensate the distortion current and the reactive current of a single-phase system [8]. The used converter of a photovoltaic power generation system connected to the grid also acts as a shunt active filter using current portions obtained through the CPT.…”

Section: Introductionmentioning

confidence: 99%

Sampling Rate Impact on Electrical Power Measurements Based on Conservative Power Theory

et al. 2021

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“…Shunt active power filters have proven to be useful devices for eliminating harmonic currents are compensating for linear/non-linear load reactive power. This paper proposed another strategy for finding the reference compensation current for a three-stage parallel active power filter (APF) under unbalanced source voltage or steady-state distortion, or both [20]. The harmonic frequency is the integral of the periodic multi-wave and the central electrical cable frequency.…”

Section: Literature Surveymentioning

confidence: 99%

PI Controller SVPWM Based Shunt Active Power Filter For Hybrid/Mixed Load

Jain¹,

Gupta²

2021

SKIT Research Journal

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Electricity is the major & predominant source of energy in today's perspective. With the advent of technology & increase in buying capacity of household's, the usage of Heavy Electric Load's such as Air Conditioner, Hooters, Washing Machines have seen a drastic rise. Also, unlike industrial loads are much heavier, they run in a fixed pattern & generally load is balanced across all three phases & are seldom nonlinear. Also, proliferation of electronic equipment has increased the Non-Linear load such as SMPS, which have rectifier component in line, & introduction of Inverter Technology for Ac's & Washing Machines, despite saving energy, has created severe concern of harmonic / high frequency noise introduction in Power System. The proposed system intends to implement a Shunt Active Power Filter using PI (Proportional Integral) Technique that can cater to power system harmonic & noise introduced by Non-Linear Load, Unbalanced Load & Mixed Load.

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“…Each category of active power filter mitigates specific power quality problems. The shunt active power filter, SHAPF, is usually used to mitigate load problems such as source current harmonics due to non-linear and the unbalanced load, power factor improvement, reactive power compensation, and voltage instability on the load side [17][18][19][20][21][22]. The series active power filter, SEAPF, is usually used to mitigate grid or mains problems, such as voltage sags, voltage swells, voltage dips, voltage unbalances, voltage interruptions, voltage phase shift, and voltage harmonics [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Effect of Unified Power Quality Conditioner on Voltage and Current Waveforms

Mahmoud¹,

Mamdouh²,

Khalil

2021

Walailak J Sci & Tech

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Power quality improvement faces different and significant problems due to voltage instability and the wide use of electronic power devices. To overcome these different power quality problems, an active power filter is used. The active power filter, in general, has 4 main categories- shunt, series, unified power quality conditioner, and hybrid active power filter. The shunt active power filter is usually used to mitigate source current harmonics and compensate reactive power for power factor correction. The series active power filter is usually used to mitigate voltage problems (sags, swells, transients, dips, distortions, harmonics, etc.). The unified power quality conditioner is a combination of the shunt active power filter and the series active power filter; it is used to mitigate all voltage and current problems, compensate voltage, current system harmonics, and reactive power compensation, and mitigate voltage dips, voltage sags, voltage swells, and voltage phase shift. In this paper, the 3-phase 3-wire unified power quality conditioner is utilized to mitigate all power system problems (voltages and currents) and discuss the effect of the shunt and series active power filter separately on source voltage and source current waveforms. This case study shows that the source voltage distortion can be mitigated by using the series active power filter alone, but the source current distortion cannot be mitigated without using both the series and shunt active power filter. The source current harmonic problem mainly exists due to 1) distorted voltage sources, and 2) non-linear loads. Therefore, the unified power quality conditioner must be used to mitigate source current distortions in the case of the distorted voltage source, to comply with the standard limits IEEE 519, IEC 555, and IEC 61000. HIGHLIGHTS The UPQC is used to mitigate all voltage and current problems and improve all power system quality The SEAPF eliminates all voltage problems The SHAPF has no effect on source voltage The SHAPF eliminates source current harmonic distortion GRAPHICAL ABSTRACT

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Model predictive control of PV-based shunt active power filter in single phase low voltage grid using conservative power theory

Cited by 19 publications

References 12 publications

Sampling Rate Impact on Electrical Power Measurements Based on Conservative Power Theory

Sampling Rate Impact on Electrical Power Measurements Based on Conservative Power Theory

PI Controller SVPWM Based Shunt Active Power Filter For Hybrid/Mixed Load

Effect of Unified Power Quality Conditioner on Voltage and Current Waveforms

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