A new hysteresis band current control technique for a shunt active filter

Kale, Murat; Özdemir, Engin

doi:10.3906/elk-1303-74

Cited by 13 publications

(13 citation statements)

References 27 publications

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“…Meanwhile, to regulate dc-link voltage and maintain voltage balance of the split dc-link capacitor, the conventional proportional-integral (PI) technique is adopted due to its straightforward feature [1,11]. Lastly, to generate switching pulses, a standard hysteresis band current control (HBC) technique is applied as it offers the benefits of structure simplicity and quick current controllability [1,2,6]. Figure 2 shows control structure of a standard dq0 technique which is commonly applied for the purpose of generating reference current.…”

Section: Ideal / Non-ideal Source Voltagementioning

confidence: 99%

“…Note that the process of generating reference current always comes together with the process of extracting harmonic current and synchronization phases from the power line. Although many techniques have been developed for this particular purpose [4,5], two techniques are reported to be extensively applied in three-phase four-wire system, namely direct-quadrature-zero dq0 principle [1,6,7] and instantaneous power pq0 theory [2,7,8]. Nevertheless, dq0 principle is preferred in this work for its reduced control complexity.…”

Section: Introductionmentioning

confidence: 99%

“…For application in three-phase four-wire system, SAPFs are available in two basic topologies. First, three-leg split capacitor topology where the middle-point of its dc-link is connected to the neutral wire of the power system [1]. Second, four-leg topology which is a more complex topology due to higher number of semiconductor switches employed and an additional control input [2].…”

Section: Introductionmentioning

confidence: 99%

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PLL-Less Three-Phase Four-Wire SAPF with STF-dq0 Technique for Harmonics Mitigation under Distorted Supply Voltage and Unbalanced Load Conditions

Hoon

Radzi

2018

Energies

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This paper presents a non-iterative technique that generates reference current to manage operation of a three-phase four-wire shunt active power filter which employs a three-leg split capacitor voltage source inverter (VSI) topology. The proposed technique integrates together a self-tuning-filter (STF) and direct-quadrature-zero (dq0) principle (referred here as STF-dq0), allowing the controlled shunt active power filter (SAPF) to perform effectively under distorted source voltages and unbalanced load conditions. Unlike the previous technique developed based on the standard dq0 principle, the proposed technique does not require any service from a phase-locked loop (PLL) where two STFs are applied to separate harmonic and fundamental elements for the purpose of generating synchronization phases and reference current, respectively. Simulation work which includes connection of the SAPF circuits, design of control techniques and all the necessary assessments are conducted in MATLAB-Simulink platform. Performance achieved by the SAPF while utilizing the proposed technique is thoroughly investigated and benchmarked with that demonstrated by the SAPF while using the standard dq0 technique, to evaluate the inherent advantages. Exhaustive simulation results are provided and thoroughly discussed to support design concept, effectiveness, and benefits of the proposed technique.

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Section: Ideal / Non-ideal Source Voltagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

PLL-Less Three-Phase Four-Wire SAPF with STF-dq0 Technique for Harmonics Mitigation under Distorted Supply Voltage and Unbalanced Load Conditions

Hoon

Radzi

2018

Energies

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“…(3) in order to obtain the actual current references. These signals are then sent to the HCC for producing the switching signals [26,27].…”

Section: Control Of Multifunction Pv System With Shunt Active Filteringmentioning

confidence: 99%

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

Sezen¹,

Aktaş²,

Uçar³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:In this paper, the control of a multifunction grid-connected photovoltaic (PV) system with a three-phase threelevel (3L) neutral point clamped (NPC) inverter is proposed, which can perform shunt active filtering. Normally, the shunt active filtering is achieved by detecting the harmonic and reactive currents of the nonlinear load and then injecting the compensating current into the grid. Therefore, the proposed system can inject PV power to a grid with power factor correction and current harmonic filtering features simultaneously. In addition, a single-stage compact and efficient transformerless power conversion topology is used in this paper for the grid-connected solar PV system with maximum power point tracking capability. In order to control the multilevel inverter-based combined system, a synchronous reference frame control technique and hysteresis current control pulse width modulation method have been applied.The system configuration and control strategy are verified and validated by simulations based on MATLAB/Simulink and implemented in real-time using the dSPACE DS1103 controller board. The simulation with experimental results indicates that the injected currents are sinusoidal and current total harmonic distortion is about 3.9%, lower than the IEEE 519 harmonic limit.

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“…Excessive reactive power demand increases the ohmic losses and reduces the active power flow capability of the distribution system, whereas voltage unbalance has an adverse impact on the operation of transformers and generators [2]. To improve the quality of power, active power filters have been proposed [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

A multifunctional DSTATCOM for power quality improvement

Mahdianpoor¹,

Kiyoumarsi²,

Ataei³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:The distribution static compensator (DSTATCOM) is used for various purposes such as load balancing, harmonic rejection, and power factor correction (PFC) in power distribution networks. In unbalanced and polluted power systems, the classic definition of power factor cannot be used for PFC due to the existence of harmonics and negative sequence components in voltage and current waveforms. In this paper, PFC is performed using the IEEE power factor definition for harmonic and unbalanced environments. Moreover, the application of a proportional-resonant (PR) controller is proposed as an effective controller in the stationary frame for DSTATCOM performance improvement. The PR controller is used in the abc-frame for load balancing and is then compared theoretically and by simulation with the conventional PI controller, which has the main drawback of steady-state error when used in the stationary frame. To improve the DSTATCOM structure, an LCL harmonic filter is used as it is advantageous over the L/LC filter in terms of the size of the filter. The proposed DSTATCOM compensates for the disturbances in the source current imposed by nonlinear, unbalanced, and low power factor loads. Simulation results show the capability of the DSTATCOM including the proposed PR controller in improving the power quality of distribution systems.

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A new hysteresis band current control technique for a shunt active filter

Cited by 13 publications

References 27 publications

PLL-Less Three-Phase Four-Wire SAPF with STF-dq0 Technique for Harmonics Mitigation under Distorted Supply Voltage and Unbalanced Load Conditions

PLL-Less Three-Phase Four-Wire SAPF with STF-dq0 Technique for Harmonics Mitigation under Distorted Supply Voltage and Unbalanced Load Conditions

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

A multifunctional DSTATCOM for power quality improvement

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