Frequency Stability Enhancement of a Large-Scale PV Integrated Grid

Jawad, Atik; Naim, Shakir Ahmed; Saha, Chinmoy Nath; Masood, Nahid‐Al

doi:10.1109/icece51571.2020.9393073

Cited by 7 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the hydro-PV power station, the proportion of PV systems is relatively big and the fluctuation of the solar power cannot be neglected. So the energy storage system (ESS) is indispensable for the stability of the hydro-PV power station [10]. With the introduction of the ESS, the output power of the PV inverters in the power station does not fluctuate with the variation of the solar radiation any more.…”

Section: Introduction *mentioning

confidence: 99%

Improvement of Efficiency of Inverters in Hydro Photovoltaic Power Station with Particle Swarm Optimization

Xue,

Xiao

2024

EAI Endorsed Trans Energy Web

View full text Add to dashboard Cite

In the sparsely populated areas without electricity, the hydro photovoltaic power station is a feasible solution for electricity supply. The strategy of distributing the power among the inverters is critical to the efficiency of them. The conventional distributing strategies result in low efficiency of the inverters. In order to improve the efficiency, this paper analysed the loss and efficiency characteristics of the inverter and expressed the power distributing problem as an optimal control problem minimizing the total loss for the inverters. The optimal control problem was solved with particle swarm optimization and the efficiency optimum power distribution strategies in three operation scenarios were obtained. The quantitative analysis method was adopted to evaluate the effect of the efficiency optimum power distribution strategies. The total efficiency of the inverters with the optimal strategies and the conventional strategies were calculated respectively. The optimal distribution strategies were compared quantitatively with conventional power distribution strategies on the basis of the efficiency. The results demonstrated the validity of the strategies obtained in this paper in improving the total efficiency of the inverters.

show abstract

Section: Introduction *mentioning

confidence: 99%

Improvement of Efficiency of Inverters in Hydro Photovoltaic Power Station with Particle Swarm Optimization

Xue,

Xiao

2024

EAI Endorsed Trans Energy Web

View full text Add to dashboard Cite

show abstract

“…To augment transit stability in renewable energy integrated power networks, fault current limiters are also utilized to supress the fault current and subsequently, improves of fault ride through capability [24]. Jawad et al [25] proposes Battery Energy Storage System (BESS) assisted frequency stability enhancement of solar energy penetrated grid. Post-disturbance, BESS augments the power generation and provide a brief-support in maintaining system power balance.…”

Section: Introductionmentioning

confidence: 99%

Data-Driven Unified Scheme to Enhance the Stability of Solar Energy Integrated Power System in Real-Time

Shrivastava,

Siddiqui,

Verma

et al. 2023

IEEE Access

View full text Add to dashboard Cite

Solar energy penetration in power grids helps to maintain power balance between generation and demand, thus enhances power grid performance. However, these integrations reduce grids' time margin to respond against sudden frequency changes and re-establishing generation-demand equivalency. Thereby, it poses challenges to the performance and stability of the power system. It therefore becomes increasingly important to comprehend the real-time system data, identify and initiate necessary remedies to sustain the healthy system's operation. This article presents a data-driven unified methodology for enhancing grid stability in solar energy-penetrated power network. The proposed method is a two-stage unified framework that incorporates Prompt Instability Evaluation (PIE) to evaluate impending system transient instability in first stage. In the second stage for a system unstable operation a Decision Assisted Adaptive Control (DAAC) is developed and implemented for corrective emergency control. A novel PIE is presented to perform a postdisturbance transient stability assessment using short-synchronized moving data. The PIE assesses the upcoming transient instability within the first few cycles following fault inception. Next, a novel DAAC is proposed to design an emergency remedial scheme for identifying location (where), magnitude, and type in real-time for unstable operations. The DAAC utilizes a novel Decision Rule Based Inference (DRBI) to evaluate suitable action sets that may be deployed by the DAAC to sustain system stability. The simulation results demonstrate the suitability of the proposed study on the system's performance in the absence/presence of solar energy with topological variations.

show abstract

“…The frequency stability is also expected to degrade due to the intermittent nature of solar power [32][33][34]. A good candidate solution for maintaining the power system frequency is the utilization of battery energy storage [35,36]. Operating the inverter as a virtual inertia device is also a viable solution, and a coordinated approach was developed in [37].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of Small-Signal Stability and Power Oscillation Damping through Photovoltaic Inverters

2021

View full text Add to dashboard Cite

This paper focuses on the methods that ensure the rotor angle stability of electric power systems, which is most frequently analyzed with small-signal models. Over the past several decades, power system stabilizers (PSSs) for conventional excitation systems were the main tools for improving the small-signal stability of electromechanical oscillatory modes. In the last decade, power oscillation damping (POD) control implemented in photovoltaic (PV) inverters has been considered an alternative to PSSs. As PV generation undergoes massive rollout due to policy directions and renewable energy source integration activities, it could potentially be used as a source of damping, which is crucial for sustaining the rotor angle stability of the remaining in-service synchronous generators. Several studies have already been dedicated to the development of different damping strategies. This paper contributes to the existing research in power system stability by providing a comprehensive review of the effects of PV generation on small-signal stability, as well as the recent evolution of POD control through PV inverters. The features and impacts of the various ways to realize POD controllers are assessed and summarized in this paper. Currently, detailed information and discussions on the practical application of PV inverter PODs are not available. This paper is, thus, intended to initiate a relevant discussion and propose possible implementation approaches concerning the topic under study.

show abstract

Frequency Stability Enhancement of a Large-Scale PV Integrated Grid

Cited by 7 publications

References 11 publications

Improvement of Efficiency of Inverters in Hydro Photovoltaic Power Station with Particle Swarm Optimization

Improvement of Efficiency of Inverters in Hydro Photovoltaic Power Station with Particle Swarm Optimization

Data-Driven Unified Scheme to Enhance the Stability of Solar Energy Integrated Power System in Real-Time

A Comprehensive Review of Small-Signal Stability and Power Oscillation Damping through Photovoltaic Inverters

Contact Info

Product

Resources

About