DC-Offset Compensation for Three-Phase Grid-Tied SPV-DSTATCOM Under Partial Shading Condition With Improved PR Controller

Dash, Arobinda; Bagarty, Durgesh Prasad; Hota, Prakash Kumar; Behera, Ranjan Kumar; Muduli, Utkal Ranjan; Hosani, Khalifa Al

doi:10.1109/access.2021.3115122

Cited by 32 publications

(7 citation statements)

References 21 publications

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“…The updated weight in ( 12) is modified to weighted values corresponding to the active power components, and the reactive components are generated as (20).…”

Section: Proposed Dstatcom Control Structurementioning

confidence: 99%

“…Adaptive control strategies have the capability of updating their parameters as a result of disturbances in the system. There are some weight-based approaches that include adaptive recursive inverse [20], neural network-based adaptive control approach [21], frequency-adaptive fractional order repetitive control [22], affine projection-like algorithm [23], and echo state-based control techniques [24]. However, the LMS algorithm [25] only updates the weights based on a single input vector.…”

Section: Introductionmentioning

confidence: 99%

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Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

et al. 2022

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The three-phase DSTATCOM is prone to higher dynamics due to grid disturbances. The proportionate affine projection algorithm (PAPA) is an adaptive filter that can be used for DSTATCOM control. In order to overcome the sluggish convergence speed of adaptive filters, PAPA is proposed in this paper. The convergence rate versus the steady-state error is a trade-off in conventional adaptive filters. However, the utilization of two adaptive filters in CSS-PAPA increases the convergence and decreases the steady-state error. The suggested filter has the advantage of having a lower computational cost than a standard adaptive filter. The proposed filter helps the inverter to work as a shunt compensator. The goal of the suggested controller is to adjust for reactive power and unity power factor during faulty conditions. The proposed DSTATCOM controller has undergone experimental validation in the laboratory.

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“…The updated weight in ( 12) is modified to weighted values corresponding to the active power components, and the reactive components are generated as (20).…”

Section: Proposed Dstatcom Control Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

et al. 2022

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“…where v t = 2 3 u 2 pa + u 2 pb + u 2 pc represent the amplitude of the terminal voltage. Equation (17) can also be used to estimate the quadrature unit template (u qa , u qb , u qc ) in (18).…”

Section: ) Unit Template Generationmentioning

confidence: 99%

“…The prime objective of grid-integrated SPV-DSTATCOM is to feed active as well as reactive power within the system in the presence of solar radiation [18], [19]. Apart from that, without solar radiation, this injects the harmonic compensation power needed by the load named as DSTATCOM.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Partial Shading Performance Evaluation With a DSTATCOM Controller

et al. 2022

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A solar photovoltaic distribution static compensator (SPV-DSTATCOM) under partial shading condition (PSC) is studied using a single-stage, 3-phase grid-connected mode. Under PSC, the performance of the grid-connected SPV-DSTATCOM is studied and addressed the issues such as active current sharing, reactive power control, and harmonic elimination. Rejection of DC offset with such PSC condition is an issue when using a conventional Proportional Resonant (PR) controller. As a result of this research, a new and improved PR (IPR) based second-order generalized integrator (SOGI) has been developed that has unity gain at the fundamental frequency and greater DC offset rejection capability to address the PR controller shortcomings. The proposed controller's performance is evaluated in both steadystate and dynamic conditions with varying loads and different PSC conditions. An experimental evaluation of the proposed controller's design assumptions is also presented in the form of a comparison with both the PR controller and the adaptive PR controller.

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“…The estimated frequency is erroneous because the low frequency component is superimposed on the average value. An improved PR controller-based SOGI-FLL is developed in [30] to address DC offset. However, it is less effective during highly dynamic load conditions.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Three-Phase Grid-Tied SPV-DSTATCOM With DC-Offset Compensation Under Dynamic Load Condition

Dash¹,

Bagarty²,

Muduli

et al. 2021

IEEE Access

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The phase and frequency correction with a three-phase grid-connected solar photovoltaicdistributed static compensator (SPV-DSTATCOM) is challenging. For grid-connected SPV-DSTATCOM, this paper proposes a cascaded enhanced second-order general integrator frequency locked loop with prefilter (CESOGI-FLL-WPF) controller. The suggested work uses the available SPV power to meet the active power requirement of local loads. Furthermore, after addressing the local load demands, the extra SPV power is pumped into the grid. The voltage source converter (VSC) operates as a DC/AC inverter when sunlight is available and as a DSTATCOM when sunlight is not available. As a result, the VSC contributes to reactive power compensation, improved power quality, improved power factor, zero voltage regulation, efficient load balancing, and increased device utilization. The CESOGI-FLL-WPF controller is able to extract the fundamental components from nonlinear load currents, resulting in superior harmonics compensation and a highly rapid and stable dynamic response of the overall system under varied conditions. The suggested system is modelled and simulated using the MATLAB/Simulink software. The proposed SPV-DSTATCOM prototype is tested in the laboratory to ensure that it performs as expected.

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DC-Offset Compensation for Three-Phase Grid-Tied SPV-DSTATCOM Under Partial Shading Condition With Improved PR Controller

Cited by 32 publications

References 21 publications

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

Photovoltaic Partial Shading Performance Evaluation With a DSTATCOM Controller

Performance Evaluation of Three-Phase Grid-Tied SPV-DSTATCOM With DC-Offset Compensation Under Dynamic Load Condition

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