Results 51 to 60 of about 508 (157)
Nowadays, with the significant integration of various renewable energy, hybrid alternating current/ voltage source converter based high voltage direct current (AC/VSC-HVDC) system integrated with doubly-fed induction generator (DFIG) has achieved rapidly
Junfang Hao +5 more
doaj +2 more sources
1) The typical operational risks and coupling characteristics of the AC/DC hybrid power grid are analyzed in detail. 2) A bi‐Level topology optimization method is designed for HVDC systems embedded in dense AC grids. 3) Considering engineering standards of both security and economy, multi‐dimensional security and stability constraints are incorporated ...
Mingxin Yan +5 more
wiley +1 more source
This paper proposes a non‐contact method for measuring the turn‐off time of insulated‐gate bipolar transistor (IGBT) devices in modular multilevel converters (MMC) submodules, using the decay of load‐side common‐mode current. The technique leverages existing current‐sensing infrastructure and avoids intrusive modifications, enabling real‐time ...
Jiyun Liu +7 more
wiley +1 more source
This paper proposes a conditional value‐at‐risk (CVaR)‐based coordinated planning framework to address the volatility and uncertainty in high voltage direct current (HVDC)‐interconnected systems. By jointly optimizing storage deployment, thermal retrofits, and reserve allocation, the method effectively quantifies and mitigates tail risks.
Yu Xiao +4 more
wiley +1 more source
Fabrication of 3D Micron T‐Shaped SiC/Silicone Rubber Composites With Nonlinear Conductivity
Three‐dimensional micron T‐shaped SiC/silicone rubber composite films with low filler loading were fabricated via a switching DC/AC electric field‐induced self‐assembly method, exhibiting nonlinear conduction and rapid surface charge dissipation. ABSTRACT Polymer‐based electronic packaging materials often suffer from surface charge accumulation and ...
Zhiming Shen +8 more
wiley +1 more source
Abstract Low‐frequency oscillations (LFOs) remain a major obstacle to maintaining stable dynamic performance in power systems with high levels of renewable energy integration. In particular, inter‐area LFOs have emerged as a critical concern in large, interconnected grids.
Linglin Meng +10 more
wiley +1 more source
Small-signal stability of hybrid multi-terminal HVDC system
Abstract The Hybrid Multi-Terminal High Voltage Direct Current (H-MTDC) transmission system can take advantages of Line-Commutated Converter (LCC) technology to reduce capital cost and Modular Multilevel Converter (MMC) technology to eliminate commutation failure (CF) issues, and recently attracts much attention in academic research and practical ...
Chunyi Guo +3 more
openaire +1 more source
Proposed methodology. ABSTRACT The reliability of power cables is essential for ensuring efficient and uninterrupted power distribution. Insulation degradation caused by thermal aging, moisture ingress, partial discharge (PD), and natural corrosion significantly impacts cable performance and lifespan.
Shahid Atiq +4 more
wiley +1 more source
Impact of Cyber Attacks on High Voltage DC Transmission Damping Control
Hybrid AC/HVDC (AC-HVDC) grids have evolved to become huge cyber-physical systems that are vulnerable to cyber attacks because of the wide attack surface and increasing dependence on intelligent electronic devices, computing resources and communication ...
Rui Fan +3 more
doaj +1 more source
ABSTRACT There is a need to develop an improved insulating material that surpasses traditional insulators in terms of insulation and efficient operation under extreme weather conditions. Epoxy nanocomposites (NCs) have gained considerable attention due to their intrinsic material properties.
Abubakar Siddique +7 more
wiley +1 more source

