Synergetic optimization operation method for distribution network based on SOP and PV
April 2024
The integration of distributed generation brings in new challenges for the operation of distribution networks, including out-of-limit voltage and power flow control. Soft open points (SOP) are new power...
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GRU-integrated constrained soft actor-critic learning enabled fully distributed scheduling strategy for residential virtual power plant
April 2024
In this study, a novel residential virtual power plant (RVPP) scheduling method that leverages a gate recurrent unit (GRU)-integrated deep reinforcement learning (DRL) algorithm is proposed. In the...
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Price prediction of power transformer materials based on CEEMD and GRU
April 2024
The rapid growth of the Chinese economy has fueled the expansion of power grids. Power transformers are key equipment in power grid projects, and their price changes have a significant impact on cost...
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Research on the longitudinal protection of a through-type cophase traction direct power supply system based on the empirical wavelet transform
April 2024
This paper proposes a longitudinal protection scheme utilizing empirical wavelet transform (EWT) for a through- type cophase traction direct power supply system, where both sides of a traction network...
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Control method based on DRFNN sliding mode for multifunctional flexible multistate switch
April 2024
To address the low accuracy and stability when applying classical control theory in distribution networks with distributed generation, a control method involving flexible multistate switches (FMSs)...
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Analysis of multiple-faults of high-voltage circuit breakers based on non-negative matrix decomposition
April 2024
High-voltage circuit breakers are the core equipment in power networks, and to a certain extent, are related to the safe and reliable operation of power systems. However, their core components are prone...
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Power equipment vibration visualization using intelligent sensing method based on event-sensing principle
April 2024
Vibration measurements can be used to evaluate the operation status of power equipment and are widely applied in equipment quality inspection and fault identification. Event-sensing technology can sense...
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Generalized load graphical forecasting method based on modal decomposition
April 2024
In a “low-carbon” context, the power load is affected by the coupling of multiple factors, which gradually evolves from the traditional “pure load” to the generalized load with the dual characteristics...
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Carbon efficiency evaluation method for urban energy system with multiple energy complementary
April 2024
Urban energy systems (UESs) play a pivotal role in the consumption of clean energy and the promotion of energy cascade utilization. In the context of the construction and operation strategy of UESs...
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High-sensitive state perception method for inverter-fed machine turn insulation based on FrFT-Mel
April 2024
Amidst the swift advancement of new power systems and electric vehicles, inverter-fed machines have progressively materialized as a pivotal apparatus for efficient energy conversion. Stator winding...
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Optimal scheduling of a township integrated-energy system using the adjustable heat-electricity ratio model
February 2024
With the expansion and implementation of rural revitalization strategies, there is a constant need for new energy sources for the construction of new townships. Consequently, integrated energy systems...
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Optimal dispatching strategy for residential demand response considering load participation
February 2024
To facilitate the coordinated and large-scale participation of residential flexible loads in demand response (DR), a load aggregator (LA) can integrate these loads for scheduling. In this study, a residential...
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Optimal operation of Internet Data Center with PV and energy storage type of UPS clusters
February 2024
With the development of green data centers, a large number of Uninterruptible Power Supply (UPS) resources in Internet Data Center (IDC) are becoming idle assets owing to their low utilization rate....
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Multi-source heterogeneous data access management framework and key technologies for electric power Internet of Things
February 2024
The power Internet of Things (IoT) is a significant trend in technology and a requirement for national strategic development. With the deepening digital transformation of the power grid, China’s power...
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Robust optimal dispatch strategy of integrated energy system considering CHP-P2G-CCS
February 2024
Integrated energy systems (IESs) can improve energy efficiency and reduce carbon emissions, essential for achieving peak carbon emissions and carbon neutrality. This study investigated the characteristics...
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A digital twin model-based approach to cost optimization of residential community microgrids
February 2024
This paper presents a peer-to-peer community cost optimization approach based on a single-prosumer energy management system. Its objective is to optimize energy costs for prosumers in the community...
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Double-ring high-frequency common-mode switching oscillation current sensor for inverter-fed machine winding insulation monitoring
February 2024
Insulation failure significantly contributes to the unpredictable shutdown of power equipment. Compared to the partial discharge and high-frequency (HF) injection methods, the HF common-mode (CM) leakage...
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Integrated strategy for real-time wind power fluctuation mitigation and energy storage system control
February 2024
To address the impact of wind-power fluctuations on the stability of power systems, we propose a comprehensive approach that integrates multiple strategies and methods to enhance the efficiency and...
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Stochastic programming based coordinated expansion planning of generation, transmission, demand side resources, and energy storage considering the DC transmission system
February 2024
With the increasing penetration of wind and solar energies, the accompanying uncertainty that propagates in the system places higher requirements on the expansion planning of power systems. A source-grid-load-storage...
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Localization method of subsynchronous oscillation source based on high-resolution time-frequency distribution image and CNN
February 2024
The penetration of new energy sources such as wind power is increasing, which consequently increases the occurrence rate of subsynchronous oscillation events. However, existing subsynchronous oscillation...
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Reliability analysis for vertical integration of protection, measurement, merge unit, and intelligent terminal device
December 2023
The reliability analysis of vertically integrated protection devices is crucial for designing International Electrotechnical Commission (IEC) 61850-based substations. This paper presents the hardware...
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Layered power scheduling optimization of PV hydrogen production system considering performance attenuation of PEMEL
December 2023
To analyze the additional cost caused by the performance attenuation of a proton exchange membrane electrolyzer (PEMEL) under the fluctuating input of renewable energy, this study proposes an optimization...
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A robust optimization model for demand response management with source-grid-load collaboration to consume wind-power
December 2023
To accommodate wind power as safely as possible and deal with the uncertainties of the output power of wind- driven generators, a min-max-min two-stage robust optimization model is presented, considering...
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Federated double DQN based multi-energy microgrid energy management strategy considering carbon emissions
December 2023
Multi-energy microgrids (MEMG) play an important role in promoting carbon neutrality and achieving sustainable development. This study investigates an effective energy management strategy (EMS) for...
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Attack-resilient control for converter-based DC microgrids
December 2023
In light of the growing integration of renewable energy sources in power systems, the adoption of DC microgrids has become increasingly popular, due to its simple structure, having no frequency, power...
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