Distributed Active Filter Systems (DAFSs): A New Approach to Power System Harmonics

Cheng, Po-Tai; Lee, Tzung-Lin

doi:10.1109/tia.2006.880856

Cited by 115 publications

(51 citation statements)

References 13 publications

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“…16(b) shows a simple control method for the compensation. The real-time communications among the APF units are required to coordinate the operations, which is overcome by introducing droop control method [58,59].…”

Section: Master-slave Control (Msc)/capacity Limitation Control (Clc)mentioning

confidence: 99%

“…16(b), and then I Fref is generated. Final voltage command, V F is calculated as [58], Eq. (11) and the PWM then generates the corresponding gating signals.…”

Section: Voltage Harmonics Controlmentioning

confidence: 99%

“…. = n i · Q i0 (17) The relation between the VA of the APF and rated capacity can also be expressed as [58];…”

Section: Current Harmonics Controlmentioning

confidence: 99%

“…The main advantages of droop control for multiple parallel APFs is that it can be used either when the APFs are in close proximity at the point of installation [56,57,60] or in distributed mode with no interconnection between each others [58].…”

Section: Current Harmonics Controlmentioning

confidence: 99%

See 3 more Smart Citations

Parallel operation of inverters and active power filters in distributed generation system—A review

Khadem¹,

Basu²,

Conlon³

2011

Renewable and Sustainable Energy Reviews

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a b s t r a c tIn this paper a technical review of parallel operation of power electronics inverters for load sharing conditions in distributed generation (DG) network is presented. Emphasis is given to parallel operation of Active Power Filters (APFs) as they are widely used to mitigate load current disturbances into DG networks. Discussions on recent advances in control strategies as applied to APFs are presented.

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Section: Master-slave Control (Msc)/capacity Limitation Control (Clc)mentioning

confidence: 99%

“…16(b), and then I Fref is generated. Final voltage command, V F is calculated as [58], Eq. (11) and the PWM then generates the corresponding gating signals.…”

Section: Voltage Harmonics Controlmentioning

confidence: 99%

“…. = n i · Q i0 (17) The relation between the VA of the APF and rated capacity can also be expressed as [58];…”

Section: Current Harmonics Controlmentioning

confidence: 99%

Section: Current Harmonics Controlmentioning

confidence: 99%

See 2 more Smart Citations

Parallel operation of inverters and active power filters in distributed generation system—A review

Khadem¹,

Basu²,

Conlon³

2011

Renewable and Sustainable Energy Reviews

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show abstract

“…A shunt resistive active power filter (R-APF) control scheme based on voltage detection for the purpose of harmonic compensation has been proposed in [12,13]. The APF was controlled as a small virtual resistance at selected harmonic frequencies, and therefore it is possible to damp out harmonic propagation.…”

Section: Introductionmentioning

confidence: 99%

Communication-less harmonic compensation in a multi-bus microgrid through autonomous control of distributed generation grid-interfacing converters

Ding

Wei

Zhou

et al. 2015

J. Mod. Power Syst. Clean Energy

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This paper proposes a novel approach to compensate buses voltage and current harmonics through distributed generation (DG) interfacing converter in a multibus microgrid. The control approach of each individual DG unit was designed to use only feedback variables of the converter itself that can be measured locally. In the proposed approach, the adjacent bus voltage is indirectly derived from the measured DG converter output voltage, DG line current and line impedance. A voltage closed-loop controller and a current closed-loop controller are designed to achieve both functions of DG real power generation and harmonics compensation. Therefore, the traditional harmonic measurement devices installed at the bus as well as the long distance communication between the bus and the DG converter are not required. The proposed approach can compensate the current harmonics, mitigate the buses voltage distortion and enable the customer devices to be operated in normal conditions within the multi-bus microgrid, and meanwhile relieve the burden of power quality regulator installed at the point of common coupling. Matlab simulations and experimental results are presented to show the operational effectiveness of the proposed approach.

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Dual mode control to improve power quality of 3‐phase 4‐wire grid interfaced PV‐battery system

Chauhan

Singh

2021

Int Trans Electr Energ Syst

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This paper presents the dual‐mode control to improve the power quality (PQ) of three‐phase four‐wire grid interfaced photovoltaic (PV) battery system in a single‐stage configuration, where the current control is used at normal circumstances for the grid‐interactive mode and for the grid interruption, the system operation is through the voltage control. The transient free switching between grid interactive and off‐grid modes is executed by a power electronics switch, thus at disconnection, the system gives reliable and incessant power to the loads. The weight of the active current constituent from the load current is acquired using Mathew's algorithm‐based adaptive filter. The voltage control regulates the frequency and voltage across the loads in off‐grid mode. The current control used for a voltage source converter mends the PQ namely current harmonics extenuations and unity power factor operation and it utilizes the solar PV's array power feed‐forward unit for the enhancement of the system's dynamic performance. The incremental conductance technique is applied for obtaining the maximum PV array's power. The addition of a battery across the DC link is realised using a DC–DC buck‐boost converter. The battery is discharged and charged in accord with the load's variation. This converter's control sustains the maximum power point tracking voltage. The system's performances for the steady‐state and dynamic situations, such as solar insolation change, load perturbation, load unbalancing and neutral current compensation, are authenticated on a developed prototype through test results.

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Distributed Active Filter Systems (DAFSs): A New Approach to Power System Harmonics

Cited by 115 publications

References 13 publications

Parallel operation of inverters and active power filters in distributed generation system—A review

Parallel operation of inverters and active power filters in distributed generation system—A review

Communication-less harmonic compensation in a multi-bus microgrid through autonomous control of distributed generation grid-interfacing converters

Dual mode control to improve power quality of 3‐phase 4‐wire grid interfaced PV‐battery system

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