The harmonic reduction techniques in shunt active power filter when integrated with non-conventional energy sources

Rao, Kambhampati Venkata Govardhan; Kumar, Mohit

doi:10.11591/ijeecs.v25.i3.pp1236-1245

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…Figure 1 is a PV system's configuration with the proposed inverter. The system comprises PV array, charge controller, battery, the proposed inverter, and AC load [23], [24]. The basic diagram of the three-phase two-step inverter is displayed in Figure 2.…”

Section: Materials and Methods 21 Photovoltaic Inverter Topologymentioning

confidence: 99%

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Bousmaha

Bechekir

Abdeslam

et al. 2023

IJPEDS

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This paper describes a new strategy for optimizing the switching angles of a three-phase inverter in a photovoltaic system. It presents non-traditional solutions to the problem of selective harmonic elimination (SHE) in three-phase inverter (VSI)-fed induction motor drives. The aforementioned problem was solved independently by using hybrid genetic algorithms (HGAs) and a modified Newton–Raphson method. GAs can obtain the correct solution even if the first generation is arbitrary. The solution then converges rapidly. The modified Newton–Raphson method is used to solve transcendental equations of the SHE pulses width modulation (SHEPWM) technique, which is a unique method that produces all possible solutions without assuming the initial angles. This modified technique is not complex and ensures rapid convergence to the solution. A real-time experimental verification of the SHEPWM technique was performed in the OP5600 RT-Lab simulator. The results obtained show that the proposed SHEPWM algorithm controls the fundamental voltage and effectively eliminates the desired harmonics, and that the evolution of the signal quality increases according to the modulation index. For M=1.1 the SHE-PWM gives the best result: a current THD of 5% for a switching frequency of 1150 Hz.

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Section: Materials and Methods 21 Photovoltaic Inverter Topologymentioning

confidence: 99%

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Bousmaha

Bechekir

Abdeslam

et al. 2023

IJPEDS

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show abstract

“…The capacitor's design values can be determined using the expressions identified in ( 27)- (30). The selfresistances of reactors are chosen such that their corresponding reactors are revealing almost pure reactive responses at the AC source fundamental frequency.…”

Section: The Harmonic-treated Tcr Based Svcmentioning

confidence: 99%

“…This filter was designed to improve the power quality of the AC grid via compensating harmonic currents and reactive power. A single-phase voltage source converter equipped with a shunt active filter was proposed by [30] to accomplish optimal minimization of current disturbance and harmonic reduction. A DSTATCOM equipped with Icos𝜙 controlling modality was proposed by [30] to enhance voltage regulation, power factor improvement, load balancing, and harmonic suppression of non-linear loads, whereas a system in [31].…”

Section: Introductionmentioning

confidence: 99%

Load current balancing for 4-wire systems using harmonic treated TCR based SVCs

Obais

Mukheef²

2022

IJPEDS

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In this paper, a harmonic-treated thyristor-controlled reactor TCR is presented as a linearized harmonic-free compensating susceptance controllable in inductive and capacitive modes. The harmonic-treated TCR is a traditional TCR conditioned in such a manner that it can respond continuously and linearly to capacitive and inductive reactive current demands without noticeable harmonic association or active power contribution. The conditioned configuration is produced by equipping the TCR with self-harmonic suppressing and filtering circuitries, which guarantee harmonic cancellation with minimal no load operating losses. The harmonic treated TCR avoids the need to high power harmonic filters required to treat the harmonics of the traditional TCR. The devised susceptances are used to build a load current balancing system for grounded loads in a 380-V, 50Hz power distribution system. Both the compensating susceptances and the load current balancing system were designed and tested on PSpice. The simulation results have demonstrated the linearity, control continuity, and harmonic cancellation of the proposed harmonic-treated TCR as a fast response compensating susceptance reliable for load current balancing purposes. The proposed load current balancing system revealed superior treatment to various unbalance conditions, thus it is deservedly promoted to have the feasibility of supporting grids having fast varying loads.

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“…The reactances connected in star form were used for compensating reactive currents, whereas those connected in delta for were exploited for balancing the active components of line currents. Active filters were introduced in [23] for the purposes of treating harmonic current components associating nonlinear loads, whereas in [24], a shunt active filter was provided to a single-phase converter to achieve significant reduction in harmonic current components. A DSTATCOM was introduced in [25] for power quality purposes.…”

Section: Introductionmentioning

confidence: 99%

Energy saving through load balancing of 3-wire loads

Obais

Mukheef

2023

IJECE

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In this paper, static var compensators (SVCs) and many load compensation techniques are reviewed. A continuously and linearly controlled compensating susceptance is devised from a switched capacitor bank and a switched reactor bank. The switched capacitor bank is built of four binary weighted thyristor switched capacitors, while the switched reactor bank is built of three binary weighted thyristor switched reactors. Although few switched capacitors and reactor are used, their binary weighted values beside their control scheme make them respond as a continuously and linearly controlled reactive device in capacitive and inductive modes of operation. A load balancing system is constructed of three identical devised compensating susceptances connected in delta-form. It is designed for balancing an 11 kV 50 Hz distribution station. The proposed system is designed and tested on PSpice which is a computer program equivalent in performance to real hardware design. The simulation results of the proposed system have showed significant treatment of severe imbalance conditions.

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The harmonic reduction techniques in shunt active power filter when integrated with non-conventional energy sources

Cited by 7 publications

References 26 publications

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Load current balancing for 4-wire systems using harmonic treated TCR based SVCs

Energy saving through load balancing of 3-wire loads

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