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

Abstract

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.

A Novel Approach for Evaluating Power Quality in Distributed Power Distribution Networks Using AHP and S-Transform

“…In reference [30], the combination of a distribution static compensator (DSTATCOM) and a battery energy storage system demonstrated significant effects in load compensation, harmonic current elimination, voltage flicker mitigation, voltage, and frequency regulation. However, the presence of the DSTATCOM considerably improved the power quality of the system, resulting in a notable gap in power quality without the DSTATCOM.…”

A Fuzzy-Based Coordinated Power Management Strategy for Voltage Regulation and State-of-Charge Balancing in Multiple Subgrid-Based DC Microgrid

“…is paper does not conduct a detailed analysis of the MPPT technique. e implementation of the MPPT technique can be followed in [33,34].…”

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

“…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.…”