A Novel Orthogonal Current Decomposition Control for Grid-Connected Voltage Source Converter

Kumar, Ajay; Gupta, Nitin; Gupta, Vikas; Babu, B. Chitti

doi:10.1109/tia.2019.2925785

Cited by 23 publications

(15 citation statements)

References 23 publications

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“…Notably, the load reactive power demand is also reduced considerably with the multifunctional PV inverter operation, which evident the UPF operation. Furthermore, the recorded values of THD's in grid currents are found to be well within the acceptable limit specified in IEEE draft 519‐2014 . It is worth mentioning that during the entire operation, an inverter absorbs an insignificant amount of active power to retain the DC‐bus voltage within the normal working limit, in addition, to diminish the switching losses incurred in the inverter circuit.…”

Section: Hardware Development and Experimental Resultsmentioning

confidence: 99%

“…It is worth mentioning that there is only a single point situated at a power curve, which typically represents the MPP point. The core idea of INC‐based MPP‐tracking control technique is that SPV power derivative with respect to its voltage dP SPV / dV SPV is yield to zero at MPP . The derivative of SPV power against its corresponding SPV voltage can be represented by (33).…”

Section: Description Of Grid‐connected Spv Systemmentioning

confidence: 99%

“…The core idea of INC-based MPP-tracking control technique is that SPV power derivative with respect to its voltage dP SPV /dV SPV is yield to zero at MPP. 37,38 The derivative of SPV power against its corresponding SPV voltage can be represented by (33). Furthermore, the error signal (e) may be estimated as in (34).…”

Section: Inc-based Mpp Trackingmentioning

confidence: 99%

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Combined active power sharing and grid current distortion enhancement‐based approach for grid‐connected multifunctional photovoltaic inverter

Patel

Gupta

Bansal

2019

Int Trans Electr Energ Syst

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Summary Distributed generation (DG) is an important technology for increasing penetration of renewable energy sources (RES) and thereby reducing oil use and coal‐related emission. In addition, there has been recent renewed interest in multifunctional photovoltaic inverter due to its uniqueness to provide ancillary services while increasing device utilization factor. In this context, a combined active power‐sharing and grid current distortion enhancement‐based approach is proposed in this paper for three‐phase four‐wire (3P4W) grid‐connected solar photovoltaic (SPV) system. The DG is uniquely controlled by multifunctional photovoltaic inverter to autonomously acquire the following multifunctionalities: (a) active power‐sharing feature to govern the power flow between the SPV unit and utility grid based on the availability of active power at direct current (DC)–bus terminal; (b) shunt active power filter (SAPF) with functionalities of source current harmonic attenuation, load reactive current compensation, and zero sequences harmonic component mitigation, in addition to unity power factor (UPF) operation; and (c) to supply constant power to the electrical loads during solar intermittency. The proposed control systems of the DG mainly consist of the fundamental load current decomposition (FLCD) loop, active and reactive power components extractor, and source current balancing compensator. By adopting the proposed FLCD‐based approach, the fundamental load current is precisely detected while diminishing the computational intensiveness. In this study, an incremental conductance (INC)–based maximum power point (MPP) tracker has been realized using an Arm Cortex M4 microcontroller (STM32F407VGT). The multifunctionalities are demonstrated through exhaustive MATLAB/Simulink simulation results and are also validated by developing a laboratory prototype using dSPACE 1104 control platform.

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Section: Hardware Development and Experimental Resultsmentioning

confidence: 99%

Section: Description Of Grid‐connected Spv Systemmentioning

confidence: 99%

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Combined active power sharing and grid current distortion enhancement‐based approach for grid‐connected multifunctional photovoltaic inverter

Patel

Gupta

Bansal

2019

Int Trans Electr Energ Syst

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“…But the shunt APF will maintain the desired dc‐link voltage. Therefore [7], the reference power to be extracted from the grid is then derived as,

P_{normalref} = P_{normalLavg} + P_{l}

. Then, the balanced positive sequence reference grid input current (

i_{s a b c}^{*}

) are calculated as

i_{s a b c}^{*} = \frac{{\hat{v}}_{s a b c}^{+}}{{({\overset{v}{true}}_{f α}^{+})}^{2} + {({\overset{v}{true}}_{f β}^{+})}^{2}} P_{normalref}

…”

Section: Control Algorithmmentioning

confidence: 99%

Biogeography based optimization strategy for UPQC PI tuning on full order adaptive observer based control

Alam

Arya

Jana

2020

IET Generation Trans & Dist

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Adaptive full order observer based control algorithm for unified power quality conditioner is presented. The full order adaptive observer based algorithm is capable of estimating fundamental positive sequence components parameters, including frequency, amplitude, and phase form power supply systems. Due to its adaptive response, monitoring accuracy, and faster detection of fundamental positive sequence components under all different loads and grid conditions, it is used for power quality improvement. In addition to full order adaptive observer based control algorithm, a biogeography-based optimization method is employed here for tuning the K p and K i gains of a proportional integral controller on unified power quality conditioner system. The proposed method minimizes the dc-link voltage oscillations and enhances its step response by optimally tuning the proportional integral controller. This is done by reducing the objective function of the integral time absolute error for different power quality perturbations. The numerical values obtained by biogeography based optimization are selected as proportional integral gains and it also improves the controller's performance. The full order adaptive observer control integrated with biogeography based optimization algorithm is tested interface with MATLAB/Simulink on developed unified power quality conditioner under different power quality problems at different intervals. The performance results demonstrate the quick convergence rate with effective performance.

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“…To alleviate this problem, recently, in [12], a newer fundamental decomposition-based control is devised. In this method, an orthogonal signal property is used to detect the fundamental component of the current.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic system operation as DSTATCOM for power quality improvement employing active current control

Patel

Gupta

Babu³

2020

IET Generation, Transmission & Distribution

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A Novel Orthogonal Current Decomposition Control for Grid-Connected Voltage Source Converter

Cited by 23 publications

References 23 publications

Combined active power sharing and grid current distortion enhancement‐based approach for grid‐connected multifunctional photovoltaic inverter

Combined active power sharing and grid current distortion enhancement‐based approach for grid‐connected multifunctional photovoltaic inverter

Biogeography based optimization strategy for UPQC PI tuning on full order adaptive observer based control

Photovoltaic system operation as DSTATCOM for power quality improvement employing active current control

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