China Southern Power Grid (China)

Multi-agent collaborative semantic recognition and real-time event generation for power grid alarm monitoring

Massive alarm data from grid monitoring systems is essential for secure power dispatch operation. Aggregating discrete alarm signals into structured events is vital to enhance grid monitoring intelligence. Nevertheless, existing event rule bases adopt domain-customized complex gr...

A multi-mode active frequency support strategy for a grid-friendly integrated PV-ES system

The integration of photovoltaic (PV) and energy storage (ES) is an effective solution to mitigate PV output fluctuations and enhance solar energy utilization. However, existing PV-ES coordination schemes are often limited by insufficient consideration of source-side support capab...

Recrystallization Behavior of MgAl Layered Double Hydroxide Films on Anodized Magnesium Alloys During Phytic Acid Loading

MgAl layered double hydroxides (LDHs) films were prepared via an in-situ growth method on anodized AZ31 magnesium alloy. Subsequently, phytic acid (PA) was loaded as a corrosion inhibitor through an anion-exchange process. The structural evolution of the LDHs nanosheets during th...

Energy–Carbon Synergy in Data Center-Based Energy Hub: Optimal Trading Decision in Coupled Electricity–Heat Markets Under Ladder-Type Carbon Trading

Data centers are becoming flexible prosumers in integrated electricity–heat systems (IEHSs) because of their large energy demand, workload flexibility, and waste-heat recovery potential. Coordinating these resources can improve energy utilization and carbon performance while supp...

Bridging Autonomous Driving and Electric-Mobility Systems: From Technical Interfaces to Cross-System Validation

Road-transport electrification and driving automation increasingly connect vehicle actions with charging services and urban electricity demand. This review combines two Web of Science Core Collection result sets with abstract-level term analysis and a structured synthesis of tech...

Adaptive Damping Control for Stability Enhancement of Grid-Following Converters Based on q-Axis Voltage Magnitude Feedback

Grid-following converters are prone to transient synchronization instability during grid faults, which may lead to the disconnection of renewable energy devices and threaten the security and stability of power systems. To address this issue, this paper first establishes a second-...

Coordinated dispatch of virtual power plants in distribution systems under ramping constraints and uncertainties

This paper proposes a coordinated dispatch framework for distribution systems with virtual power plants (VPPs) that addresses both substation ramping constraints and load-ramping uncertainty. A data-driven quantile-regression temporal convolutional network (QR-TCN) is developed t...

Yaw-Control Optimization for Floating Wind Farms Considering Platform Repositioning

Wake losses constrain power capture in deep-offshore floating wind farms. Unlike fixed-bottom turbines, yaw control in floating turbines changes both wake propagation and aerodynamic thrust; the resulting platform repositioning further alters wake overlap. To investigate the coup...

Optimization and analysis of phase-locked loop for grid-following inverters with weak grid connection

Purpose This study aims to analyze and enhance the stability of three-phase grid-connected inverters in weak grid environments, with a particular focus on the negative impact of the phase-locked loop (PLL) on system stability. Design/methodology/approach A small-signal transfer f...

A multi-objective weighted constraint axial segmentation structure and collaborative optimization method for suppressing abnormal temperature rise in bridge arm reactors

As a critical component of flexible DC transmission systems, the thermal stability of bridge arm reactors directly determines system reliability. Under AC-DC composite conditions, nonuniform current sharing among encapsulations intensifies local Joule heating and creates hotspots...

A coordinated control strategy for GFL-ES and GFM-ES to enhance PFR performance of interconnected and disconnected power systems

At present, grid-following energy storage (GFL-ES) and grid-forming energy storage (GFM-ES) have been extensively deployed in power systems, both of which exhibit distinct operational characteristics in primary frequency regulation (PFR). However, their independent participation...

A Downscaling Method for Cloud-to-Ground Stroke Density and Its Improvement on Tower-Level Lightning Hazard Risk Identification

Cloud-to-ground (CG) stroke density is key for lightning hazard risk assessment, but conventional grid-cell methods face an inherent trade-off between spatial resolution and statistical confidence. To address this issue, this study takes Fangchenggang City, Guangxi, as the study...

Lifelong dictionary learning for dynamical system fault detection: A Bayesian perspective

Dynamical-system fault detection is essential for maintaining safe and reliable operation. However, industrial systems often evolve across operating modes, causing fixed monitoring models to lose accuracy when the data distribution shifts. Updating the model with new mode data ca...

Energy-efficient coordinated scheduling of stacker cranes and automated guided vehicles in a smart-meter automated storage and retrieval system

Automated storage and retrieval systems require coordinated scheduling of stacker cranes and automated guided vehicles because their operations are coupled through task precedence, shared buffers, resource conflicts, and energy-related travel costs. This study examines a smart-me...

Frequency Control Strategy for High-Penetration Renewable Power Systems with Voltage-Sensitive Flexible Load Clusters

The high penetration of renewable energy has posed significant challenges to frequency regulation, primarily due to the scarcity of traditional regulation resources in these regions. To address this, a novel secondary frequency regulation control method utilizing voltage-sensitiv...

Series-Connected Grid-Following and Grid-Forming Hybrid Control Strategy for VSC-HVDC Converters to Enhance Transient Voltage Stability in Receiving-End Power Grids

With an increase in the High-Voltage Direct Current (HVDC) infeed, the strength of the receiving-end AC grid decreases, leading to transient voltage instability. Voltage source converter (VSC)-HVDC stations have a large unit capacity and high controllability, offering great poten...

A study on the GraphRAG semantic retrieval algorithm for multimodal data

To address the challenges of evidence chain breakage of vectors, collaborative constraint between image and structured fields is challenging, and the credibility of the generated results is insufficient with multimodal data, this paper proposes a GraphRAG semantic retrieval model...

Interfacial engineering enables air-stable Li 5 FeO 4 prelithiation additives for long-Life LiFePO 4 |graphite batteries

Abstract Lithium iron phosphate (LiFePO4, LFP)|graphite (Gr) full cells are widely used in large-scale energy storage owing to their safety and long cycling stability. However, irreversible lithium consumption during solid electrolyte interphase (SEI) formation depletes the limit...

Stackelberg Game-Based Optimal Operation of a Flexible Integrated Energy System with Dual Energy Storage for Source-Load Interaction

Renewable-energy fluctuations and the conflicting economic objectives of independent stakeholders pose simultaneous physical and market challenges to the operation of flexible integrated energy systems (FIESs). To address these issues, this paper develops a market–physical couple...

Scribe: Private Web2-to-Web3 eligibility proofs for decentralized applications with transparent STARKs

Decentralized applications increasingly require eligibility checks based on Web2-held attributes, yet provider-side signing and centralized attestations limit deployability and can expose sensitive user data. This paper presents Scribe , a distributed eligibility verification ser...