Solar PV Generation Based Microgrid Control Interfaced to Utility Grid

Shubhra,; Singh, Bhim

doi:10.1109/npsc49263.2020.9331928

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…The transient‐free changeover control approach between the grid‐connected and isolated modes of operation is detailed in [21]. The control approach for grid‐integrated solar PV generation‐based MG is reported in [22]. The active power control of rising RERs is an emergent concern.…”

Section: Introductionmentioning

confidence: 99%

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

Chauhan

Singh

2022

IET Energy Syst Integration

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The solar photovoltaic (PV)-based microgrid is one of the most ideal renewable energy resources. This paper presents a utility grid intertie multi-PV-inverter-based microgrid (MG) control for the solar rooftop application. The main and ancillary voltage source converters (VSCs) DC links are assimilated with PV arrays of independent maximum power point tracking (MPPT) algorithms for the economical and efficacious single-stage configuration. At the point of common coupling (PCC), parallel VSCs arrangement increases the MG's power rating with distinctive local loads. In normal circumstances, the current control methodology is employed by the main VSC under the grid-interactive mode. Conversely, in some grid contingency conditions under the isolated mode, its control transfers to the voltage control, which regulates the frequency and the voltage at PCC and acts like a grid-forming inverter. The ancillary VSC operation is implemented with the current control algorithm. The main VSC supplies the active power towards the grid and accomplishes the load requirement, whereas the ancillary VSC retains its load demand in a grid-interactive mode and also regulates the load requirement in an islanded mode of operation. The utilization of feed-forward components for PV arrays powers in the VSCs current control techniques improves the MG dynamic performance. The seamless mode transfer performance of the main VSC is implemented via a power electronics switch. The MATLAB software is used to model a microgrid and its performance is analysed via RT-LAB in real time through the OPAL-RT (OP4510) controller for various scenarios, that is, varying solar insolation, load alterations and unbalanced non-linear loads. The utilization of the modified Kwong's algorithm-based current control enhances the power quality such as harmonics current elimination and improvement in the power factor. The voltage profile of PCC voltages is enhanced via using a modified Kwong's algorithm-based filter in the voltage controller. The modified Kwong's algorithm has fast convergence, reduces misadjustments and gives very good performance compared to the least-mean-square (LMS) and Kwong's approaches. The total harmonic distortion (THD) of grid currents and PCC voltages THD in an isolated mode is found according to the limits of the IEEE-519 standard.

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Section: Introductionmentioning

confidence: 99%

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

Chauhan

Singh

2022

IET Energy Syst Integration

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“…In this sense, Utility Interfaces (UI) converters have been proposed for microgrid applications to make easier the controlling of the power system [4]- [6]. UI converter is connected between the grid and microgrid buses where the main function is controlling the power flow between the buses [4] [5]. It makes easier the control of the power system once the control of a group of loads and generation is centered in the UI converter.…”

Section: Introductionmentioning

confidence: 99%

Power Flow Numerical Assessment of a STATCOM iUPQC Utility Interface for Microgrids

Montagner¹,

Rech²,

Mezaroba³

2022

REPQJ

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The dual unified power quality conditioner (iUPQC) is an active filter that has been studied to be applied as utility interface in microgrid applications. It regulates the voltage of the microgrid side and controls the power flow between the grid and microgrid side. Besides that, ancillary functions to grid side has been proposed to extend its power quality compensation. This paper presents a detailed analytical and numerical analysis of the power flow of an iUPQC, which operates as an utility interface in microgrid applications with the extended function of STATCOM. It can compensate not only the disturbances at the load or microgrid side but also provides a RMS voltage regulation at the Point of Common Coupling (PCC), thus, providing reactive power to the grid. Moreover, the iUPQC power flow is evaluated considering the implementation of the power angle control (PAC), a technique used to share and equalize the power processed by each converter allowing the optimization of this conditioner. Therefore, this study can support the understanding of the power flow of the iUPQC operating as STATCOM, in order to share and optimize the available power in the iUPQC converters using PAC.

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Power Flow Numerical Assessment of an iUPQC Utility Interface for Microgrids with STATCOM and PAC Functions

Montagner

Mezaroba

Rech

et al. 2022

2022 IEEE 21st Mediterranean Electrotechnical Conference (MELECON)

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Solar PV Generation Based Microgrid Control Interfaced to Utility Grid

Cited by 3 publications

References 10 publications

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

Power Flow Numerical Assessment of a STATCOM iUPQC Utility Interface for Microgrids

Power Flow Numerical Assessment of an iUPQC Utility Interface for Microgrids with STATCOM and PAC Functions

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