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

Patel, Nirav; Gupta, Nitin; Babu, B. Chitti

doi:10.1049/iet-gtd.2019.1487

Cited by 35 publications

(16 citation statements)

References 31 publications

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“…The InC is an accurate and widely used technique. Equations (1)(2)(3)(4) shown represents how the InC tracks the maximum power point,…”

Section: Mppt Techniquementioning

confidence: 99%

“…In India, the utilization of RES, for example, Wind energy generation, Solar Photovoltaic generation, Hydropower generation systems, etc. became more popular in past few decades especially, the solar photovoltaic generation system because of appropriate climate conditions [2,3]. The perfect energy age is a significant concern in view of the persistently increment of carbon content in climate, so to get freed out of this issue renewable energy sources are gotten extremely well known [2].…”

Section: Introductionmentioning

confidence: 99%

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A Double-SOGI-Based Power Quality Improvement for a Weak-Grid-Connected PV System

Peeploda

Gupta

Rawat

2021

Algorithms for Intelligent Systems

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“…The InC is an accurate and widely used technique. Equations (1)(2)(3)(4) shown represents how the InC tracks the maximum power point,…”

Section: Mppt Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Double-SOGI-Based Power Quality Improvement for a Weak-Grid-Connected PV System

Peeploda

Gupta

Rawat

2021

Algorithms for Intelligent Systems

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“…In the standard test condition and at MPP, the PV panel output is V MPP = 540 V . Further, the PV output voltage is scaled up using a DC‐DC boost converter and set to V DC = 690 V . 29 In this case, the voltage output ( V DC ) of the DC‐DC converter is compared with the reference DC‐link voltage ( V DC ref ) and difference in voltage will be applied to the GWO enabled DC‐link VCL. The PI‐compensator employed in the VCL of the PV inverter typically offers dual features as follows: (a) The proportional action improves the dynamic response of the DC‐link VCL, and (b) The integral action provides an infinite gain while operating with DC quantities and thereby force the steady‐state error to zero.…”

Section: Description Of Electronically Coupled Pv Systemmentioning

confidence: 99%

Electronically coupled photovoltaic system with grey wolf optimizer enabled DC ‐link voltage control loop

Patel

Kumar

Gupta

2020

Int Trans Electr Energ Syst

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Stabilization of DC-link voltage is indispensable for the satisfactory operation of three-phase electronically coupled photovoltaic (PV) system. Practically, a challenge is to promptly and effectively settle the DC-link voltage with minimum peak magnitude and settling time to its pre-disturbance level when exposed to disturbances in the load and solar insolation level. The classical methods of DClink voltage stabilization employ a proportional-plus-integral (PI) compensator, and its gain coefficients are modulated through a cumbersome trial-and-error approach. Nevertheless, this approach does not yield superior results, especially under the wide interruptions in operating conditions due to nonlinear and timevarying characteristic of the PV module. These concerns have resulted in the emergence of multiple meta-heuristic techniques to optimally tune PI compensator gain coefficients. Nevertheless, most of these methods call for the ingrained paradox between computational efficiency and dynamic performance. Driven by this drawback, a proposal based on grey wolf optimizer (GWO-PI) is described in this paper to serve the following control targets: (a) be able to improve harmonic filtering with computational effectiveness, and (b) to ensure superior performance under exposure to interferences in the load and solar insolation level. Good agreement in MATLAB/Simulink simulation studies and experimental evaluations establish that the proposed GWO-PI outperforms the existing standardized optimization techniques such as particle swarm optimization (PSO-PI) and gravitational search algorithm (GSA-PI) in aspects of peak magnitude and settling time. Besides, it practically enables an improved harmonic filtering LIST OF SYMBOLS AND ABBREVIATIONS: K p , proportional gain coefficient of PI-controller; K i , integral gain coefficient of PI-controller; i LR , i LY , i LB , load currents; i L0 , zero-sequence component of the current; i Lα , i Lβ , i L0 , stationary reference frame currents; i Ld , active current component; i Lq , reactive current component; φ, grid voltage phase-angle; i * dc , d-axis reference current; i dc , DC-link VCL output; i Ldh , load harmonic current; i α , i β , i 0 , reference compensating currents; i Cα , i Cβ , i C0 , actual compensating current; V DC , measured DC-link voltage; V DCref , reference DC-link voltage; E SS , steady-state error; O f , objective function; M p , peak magnitude; T s , settling time; α, alpha; β, beta; δ, delta; ω, omega; D !

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“…In [20], a coordinated voltage control method for PV inverters at each node is provided to regulate the voltage. Furthermore, a multiple function inverter has been studied to mitigate harmonics [21][22][23][24]. In [25], a harmonic current sharing control strategy by directly controlling the inverter impedance is studied to solve the harmonic problem caused by nonlinear load.…”

Section: Introductionmentioning

confidence: 99%

Two‐layer model of siting and sizing for active power filters and static var generators considering reactive power capability and active power curtailment of DGs

Tian

Jia

Xue

et al. 2022

IET Generation Trans & Dist

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To solve the voltage harmonics and voltage deviation caused by highly penetrated distributed generations (DGs) and power electronic equipment in distribution networks, a two‐layer model of the allocation for the voltage detection active power filters (VDAPFs) and static var generators (SVGs) considering reactive power capability and active power curtailment of DG based on the distribution network partition is proposed in this study. First, the network partition based on the defined integrated voltage sensitivity is presented. Dominant nodes that are candidates of VDAPFs and SVGs are obtained based on the single and integrated sensitivity in all regions. Second, the voltage deviation mitigation regions of the DG grid‐connected inverters (GCINs) are determined considering the coupling between different GCINs. A curtailment method for DGs active power in and inter regions is proposed. On this basis, a two‐layer allocation model is designed. The siting and sizing of VDAPF and SVG are obtained in the upper layer by minimizing the total annual cost. In the lower layer, the power quality level is optimized in each operation scenario by the allocations provided in the upper layer. Finally, case studies on the IEEE 33‐bus and PG&E 69‐bus systems demonstrate that the proposed strategy is feasible and effective.

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

Cited by 35 publications

References 31 publications

A Double-SOGI-Based Power Quality Improvement for a Weak-Grid-Connected PV System

A Double-SOGI-Based Power Quality Improvement for a Weak-Grid-Connected PV System

Electronically coupled photovoltaic system with grey wolf optimizer enabled DC ‐link voltage control loop

Two‐layer model of siting and sizing for active power filters and static var generators considering reactive power capability and active power curtailment of DGs

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