Design, development, and implementation of grid-connected solar photovoltaic power conversion system

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

doi:10.1080/15567036.2019.1668506

Cited by 27 publications

(10 citation statements)

References 14 publications

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“…These pulses are then passed through the dead‐band circuit to avoid the shoot‐through problem in inverter limb. In the present study, a dead‐band time is chosen as 3.2‐μsec for hysteresis pulses to IGBTs of the same phase‐leg . The delayed switching pulse output from the dead‐band circuit is further given to the VSC through amplification and isolation circuit.…”

Section: Hardware Development and Experimental Resultsmentioning

confidence: 99%

“…In the present study, a dead-band time is chosen as 3.2-μsec for hysteresis pulses to IGBTs of the same phase-leg. 40 The delayed switching pulse output from the dead-band circuit is further given to the VSC through amplification and isolation circuit. The primary objective of employing signal amplification and isolation circuit is to amplify the pulse FIGURE 6 Laboratory developed prototype generated by dSPACE 1104 from +5 to +15 V. Besides, it provides galvanic isolation between primary (low-level driver circuit) and the secondary circuit (high-power circuit).…”

Section: Hardware Development and Experimental Resultsmentioning

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: Hardware Development and Experimental Resultsmentioning

confidence: 99%

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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“…1. Eight IGBT (STGW30NC120HD) modules with their corresponding gate driver circuits and six fast recovery diodes (MUR 460) compose two‐level inverter [26]. The LEM make voltage and current transducers, LV 25‐P and LA 55‐P, respectively, were utilised to measure the three‐phase voltages, line currents, DC‐bus terminal voltage, SPV voltage, and current.…”

Section: Experimental Testsmentioning

confidence: 99%

Optimised PI‐4VPI current controller for three‐phase grid‐integrated photovoltaic inverter under grid voltage distortions

Patel

Kumar

Gupta

et al. 2020

IET Renewable Power Generation

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This study aims to propose optimised and robust current controller for the transformerless grid-integrated photovoltaic inverter. Challenge of ensuring improved power quality while minimising the DC-component under non-ideal grid condition is at the forefront in the photovoltaic system. In this context, an advanced current controller is designed and developed in the stationary reference frame with proportional-integral (PI) plus four-vector PI (4VPI) controllers. The PI-controller modulates the shape of fundamental current to follow its reference induced from outer DC-link loop. Meanwhile, 4VPI controllers are tuned at the multiple of grid frequencies including third-(3ω 0), fifth-(5ω 0), seventh-(7ω 0), and ninth-(9ω 0) to introduce infinite gain and thereby alleviating stationary errors in the current loop of the photovoltaic inverter. The most distinguishing feature of the proposed controller is its inherent control robustness, and therefore, it operates satisfactorily against control delay time and frequency excursion. Traditionally, cumbersome trial-and-error techniques have been largely employed to adjust the PI-VPI controller gains. Nonetheless, tuning of these parameters has made many practitioners switch-off from employing the proposed controller. Given this, the particle swarm optimisation algorithm is proposed. Finally, the practicality of the proposed controller is verified through comprehensive set of simulation and experimental tests conducted on a laboratory-developed prototype using dSPACE-1104.

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“…These voltage and current signals are further utilised to generate the reference current signals. The reference current generated by the control algorithm will be further processed through the hysteresis current controller and the four pulses generated by the current controller is taken out using general purpose input and output (GPIOs) of the dSPACE‐1104 [30].…”

Section: Experimental Investigationsmentioning

confidence: 99%

Pseudo affine projection assisted multitasking approach for power quality improvement in grid‐interactive photovoltaic (PV) system

Patel¹,

Gupta²,

Kumar³

et al. 2020

IET power electron.

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Design, development, and implementation of grid-connected solar photovoltaic power conversion system

Cited by 27 publications

References 14 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

Optimised PI‐4VPI current controller for three‐phase grid‐integrated photovoltaic inverter under grid voltage distortions

Pseudo affine projection assisted multitasking approach for power quality improvement in grid‐interactive photovoltaic (PV) system

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