Overview of technical specifications for grid-connected photovoltaic systems

Anzalchi, Arash; Sarwat, Arif I.

doi:10.1016/j.enconman.2017.09.049

Cited by 93 publications

(58 citation statements)

References 132 publications

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“…On the other hand, for high loading conditions (Figure 7), significantly higher savings are detected, independently of PV source position. This is in accordance with Equations (10) and (12), since specific reactive losses in cables and transformers depend on relative reactive power q. Although total system savings are higher, they are still lower than PV inverter losses.…”

Section: One Pv Source Per Distribution Networksupporting

confidence: 88%

“…All distributed generators connected to the distribution system through power inverters are, in general, able to provide reactive power [4]. This possibility has been accounted for in several latest revisions of national Grid Codes [2,11,12], and thus most of the commercially available PV inverters are able to provide reactive power.…”

Section: Analysis Of Reactive Power Compensation By Pv Invertersmentioning

confidence: 99%

“…The savings gradually decrease when power factor deviates from unity. This is due to the fact that with system's total reactive power decreasing, marginal losses also decrease (see Equations (10) and (12) and Figure 3).…”

Section: One Pv Source Per Each Feedermentioning

confidence: 99%

“…Several national standards and grid codes [11,12] predict operation of PV systems with power factor below unity. Most of the contributions consider usage of PV systems' inverters as ancillary service providers [2][3][4][11][12][13][14][15] but some of them analyzed the influence of reactive power compensation on power system losses. In general, compensation of inductive reactive power with high share proliferation of PV systems is considered.…”

Section: Introductionmentioning

confidence: 99%

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Reactive Power Compensation with PV Inverters for System Loss Reduction

Vlahinić

Franković

Komen³

et al. 2019

Energies

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Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation, congestion mitigation and loss reduction. This article analyzes possibilities for loss reduction in a typical medium voltage distribution system. Losses in the system are compared to the losses in the PV inverters. Different load conditions and PV penetration levels are considered and for each scenario various active power generation by PV inverters are taken into account, together with allowable levels of reactive power provisioning. As far as loss reduction is considered, there is very small number of PV inverters operating conditions for which positive energy balance exists. For low and medium load levels, there is no practical possibility for loss reduction. For high loading levels and higher PV penetration specific reactive savings, due to reactive power provisioning, increase and become bigger than additional losses in PV inverters, but for a very limited range of power factors.

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Section: One Pv Source Per Distribution Networksupporting

confidence: 88%

Section: Analysis Of Reactive Power Compensation By Pv Invertersmentioning

confidence: 99%

Section: One Pv Source Per Each Feedermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reactive Power Compensation with PV Inverters for System Loss Reduction

Vlahinić

Franković

Komen³

et al. 2019

Energies

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“…Solar energy is an ideal energy source for clean power generation. [6][7][8] The power delivered from a PV panel varies with environmental conditions, so the maximum power is extracted from a PV module at different irradiance and temperature using maximum power point tracking (MPPT) strategies. 9 To obtain the MPP, various techniques such as perturb and observe (P&O), incremental and conductance (I&C), fuzzy logic (FL), neural network (NN), and sliding mode control are illustrated in the literature.…”

Section: Motivationmentioning

confidence: 99%

Improving power quality and load profile using PV‐Battery‐SAPF system with metaheuristic tuning and its HIL validation

Kumar

Bansal

Kumar

2020

Int Trans Electr Energ Syst

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Summary Nonlinear load results in inferior power quality and a non‐uniform power demand curve. This gets aggravated due to the charging of electric vehicles. This paper presents a new control approach of integrating a photovoltaic (PV) cell with battery storage to a shunt active power filter (SAPF) for electric vehicle (EV) applications. The multifunctional PV‐Battery‐integrated SAPF (PV‐Battery‐SAPF) performs harmonic mitigation along with clean power generation, energy storage, uniform load demand curve, and battery swapping. It is achieved through a two‐stage topology. In the first stage, maximum power point (MPP) of a PV array is robustly tracked using metaheuristic algorithms like cuckoo search algorithm and particle swarm optimization. In the second stage, an ant colony optimization‐tuned controller is developed which adaptively controls the SAPF to improve the power quality. The suggested method provides efficient MPP tracking, lesser total harmonic distortion, better dynamic system performance, and appropriate charging/discharging of battery leading to increased system reliability. The proposed system is validated in real time on a hardware‐in‐the‐loop (HIL) testing platform.

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Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

Oruganti

Sarma

Mortezaei

et al. 2020

Int Trans Electr Energ Syst

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Objective A conservative power theory (CPT) based two‐stage three‐phase multi‐functional grid‐connected photovoltaic (PV) inverter (MGCPI) with auxiliary battery storage system (BSS) is proposed in this article. This proposed configuration offers selective power injection and power conditioning to the consumers. A power management (PM) algorithm is developed to decide the best mode of operation of the MGCPI, taking into account the state‐of‐charge (SOC) of the BSS and the available power at the solar‐PV source for effective coordination between BSS and PV source. Methods CPT is used for computing the MGCPI current reference signals for multi‐functional operations. The feed‐forward linear control systems are designed using classical frequency response analysis for a synergetic operation of BSS and MGCPI. The whole system configuration is modeled using MATLAB/Simulink and validated in real‐time with PM algorithm for unbalanced linear and nonlinear loads using OPAL‐RT based OP4500 grid emulator. Result The injected power, percentage THD of individual phase currents, true power factor, and unbalanced current are measured for various modes of operation. The proposed MGCPI with BSS improves the power quality (PQ) and also injects seamless power at the point of common coupling (PCC) to reduce the grid consumption. Conclusion The real‐time results demonstrate the effectiveness of the proposed approach for unbalanced nonlinear loads in smart electric grid, provisioning harmonic‐free electrical power as per the requirements of IEEE 519‐2014, IEEE 1547a‐2018 standards.

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Overview of technical specifications for grid-connected photovoltaic systems

Cited by 93 publications

References 132 publications

Reactive Power Compensation with PV Inverters for System Loss Reduction

Reactive Power Compensation with PV Inverters for System Loss Reduction

Improving power quality and load profile using PV‐Battery‐SAPF system with metaheuristic tuning and its HIL validation

Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

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