Table 1
Overview of literature survey on power quality mitigation techniques used in smart grid.
| Ref, Year | Feature/Technique | Key findings and conclusion | Research gaps identified |
|---|---|---|---|
| [6], 2024 | Grid automation and control | Automated voltage regulation and reactive power control to mitigate fluctuations and enhance stability. | Current automation techniques mainly address reactive power control. There is a need for research on proactive control strategies that respond dynamically to changing grid conditions. |
| [7], 2024 | Advanced filtering and conditioning | Deployment of active/passive harmonic filters, DVRs, and STATCOMs for harmonic mitigation and stability. | Current filtering techniques focus on harmonic mitigation, but research on integrating multiple PQ improvement techniques is lacking. |
| [8], 2024 | Data analytics and AI | Application of AI for predictive maintenance and anomaly detection in PQ data. | AI in predictive maintenance is advancing, but research is needed on integrating AI with real-time data analytics for proactive PQ management. |
| [9], 2024 | Intelligent control strategies | Adaptive control algorithms for dynamic load management and voltage stability. | Current intelligent control strategies focus on voltage stability, but research is needed on integrating these strategies with DERs to enhance grid resilience. |
| [10], 2023 | Communication and networking | Advanced communication protocols and networks for reliable data exchange in smart grids. | Advanced communication networks are crucial for reliable data exchange, but research on cybersecurity challenges and resilience in smart grids is needed. |
| [8], 2022 | Advanced monitoring and measurement | Continuous monitoring of voltage, current, and frequency parameters using smart meters and sensors. | Advancements in real-time monitoring technologies exist, there is a need for studies on standardizing monitoring protocols across smart grids. |
| [11], 2021 | Integration of renewable energy sources (RES) | Use of energy storage systems (ESS) and hybrid energy systems to manage variability from renewables. | While ESS and hybrid systems help manage RES variability, research on optimizing their grid integration for PQ improvements is limited. |
| [12], 2021 | Synchrophasor applications | Real-time monitoring and control using synchrophasor technology for grid stability. | Synchrophasor technology enhances real-time monitoring, but research is needed to improve its accuracy and reliability under diverse grid conditions and complexities. |
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