PV-STATCOM: A New Smart Inverter for Voltage Control in Distribution Systems

Varma, Rajiv K.; Siavashi, Ehsan M.

doi:10.1109/tste.2018.2808601

Cited by 127 publications

(34 citation statements)

References 14 publications

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“…The voltage control capability of the SVC was investigated and a reactive power dispatch model was developed that restores the SVC operating point and regulates the bus voltage [40]. A photovoltaic inverter is controlled as a STATCOM and provides voltage control in power distribution systems [41]. The limits of the UPFC were included into a steady state power flow model, which was validated by simulations that highlight the capabilities of a UPFC for coordinated voltage control and power flow control [42].…”

Section: Voltage Controlmentioning

confidence: 99%

FACTS Providing Grid Services: Applications and Testing

et al. 2019

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The role of flexible alternating current transmission systems (FACTSs) in the provision of grid services is becoming increasingly important, due to the massive integration of intermittent renewable energy sources, energy storage systems, and the decommissioning of thermal plants. A comprehensive literature review of grid services offered by FACTS is performed, focusing on the different grid services that they can provide, such as power flow control, reactive power control, voltage control, power quality improvement, harmonic mitigation, improvement of transient stability, and damping of inter-area and intra-area oscillations. These grid services need to be realistically and economically validated in suitable testing environments. A review of relevant standards, guides, and the literature is performed, which covers the entire range from functional specification and factory testing up to the field testing of FACTS. Advanced industry practices, such as controller hardware in the loop (CHIL) testing of FACTS controllers by the manufacturer, and recent trends, such as CHIL testing of replica controllers by the owner, are underlined. Limitations of conventional testing and CHIL testing are explained and the use of power hardware in the loop (PHIL) simulation for FACTS testing is discussed. CHIL and scaled-down PHIL tests on a transmission static synchronous compensator (STATCOM) are performed and a comparison of the results is presented.

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Section: Voltage Controlmentioning

confidence: 99%

FACTS Providing Grid Services: Applications and Testing

et al. 2019

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“…Inverters with STATCOM functions and support to the grid in critical conditions have been reported; however, the experimental strategy is more complex, and involves robust development cards. [9,30]. One of the determining factors in the proposed implementation is the use of the SC module.…”

Section: Stable Responsementioning

confidence: 99%

The Control Scheme of the Multifunction Inverter for Power Factor Improvement

et al. 2018

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Grid-connected photovoltaic (PV) systems require an inverter that allows an efficient integration between the panels and the grid; however, the operation of conventional inverters is limited to the periods of power generation by the panels. This paper proposes a control scheme based on the theory of passivity to provide additional functions to the inverter of a PV system. These additional functions improve the power quality; for example, when loads demand inductive currents be connected, the power factor is improved independently of the intermittency of the solar energy source. The performance of the system with the passivity-based control is verified by simulation and experimentation using MATLAB/Simulink ® (2017a, MathWorks, Natick, MA, USA).

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“…Besides, it has an inherent capability to control the neutral current demand for nonlinear loads directly, have made a 3P4W topology a suitable choice for the modern distribution grid. Besides, it effectively alleviates source current harmonic unbalancing issue and restricts the neutral current flow into utility grid side …”

Section: Introductionmentioning

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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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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PV-STATCOM: A New Smart Inverter for Voltage Control in Distribution Systems

Cited by 127 publications

References 14 publications

FACTS Providing Grid Services: Applications and Testing

FACTS Providing Grid Services: Applications and Testing

The Control Scheme of the Multifunction Inverter for Power Factor Improvement

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

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