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Exploring Converter Control Duality in Microgrids: AC Grid-Forming vs DC Droop Control
Announce Type: replace Abstract: Power electronic converters are fundamental building blocks of both AC and DC microgrids, enabling the integration of renewable energy sources, energy storage systems, electronic loads, and electric vehicles. In contrast, converter control in DC microgrids has developed along the path of droop control, which is widely adopted for decentralized DC-bus voltage regulation and power sharing. Although these control strategies share certain characteristics, their...
Performance of an LYSO-Based Active Converter for a Conversion Spectrometer aiming for 52.8 MeV photon detection in Future $\mu^+ \to e^+ \gamma$ Search Experiments
arXiv:2512.24209v3 Announce Type: replace Abstract: To facilitate future $\mu^+ \to e^+ \gamma$ search experiments with a branching-ratio sensitivity of $10^{-15}$, we are developing a conversion spectrometer that incorporates an active LYSO converter. The converter generates $e^+e^-$ pairs from incident photons while simultaneously measuring their energy deposition and timing, thereby enabling precise reconstruction of 52.8 MeV photons. The design goals include a time resolution of 30 ps...
Accurate Small-Signal Modeling of Digitally Controlled Buck Converters with ADC-PWM Synchronization
Announce Type: replace Abstract: Digital control has become increasingly widespread in modern power electronic converters. When acquiring feedback signals such as the inductor current, synchronizing the analog-to-digital converter (ADC) with the digital pulse-width modulator (DPWM) is commonly employed to accurately track their steady-state average. However, the small-signal implications of such synchronization have not been investigated.
Lightweight CNN-Based Anomaly Detection for High Voltage Converter Modulators in the Spallation Neutron Source
arXiv:2605.31259v1 Announce Type: new Abstract: Unscheduled trips of high-power pulsed converters are a leading source of downtime at large accelerator facilities. At the Spallation Neutron Source (SNS), the High Voltage Converter Modulators (HVCMs) are consistently the second-largest contributor to lost beam time. Each HVCM pulse is recorded across sensor channels spanning currents, voltages, and magnetic fluxes, whose mutual interactions encode the operating state of the system.
When Can Phasor-Domain Device Models Be Trusted for Electromechanical Stability Analysis of Grid-Forming Converter-Dominated Microgrids?
arXiv:2606.08082v1 Announce Type: new Abstract: Grid-forming (GFM) converter-dominated microgrids are often analyzed using reduced-order phasor-domain electromechanical GFM models, but the validity of these models is often taken for granted. Assuming ideal inner-loop tracking (IILT) of terminal-voltage references, these models neglect the inner-loop and filter dynamics at the electromagnetic-transient (EMT) timescale to simplify stability analysis. This paper argues that such neglected...
Apply2Isar: Automatically Converting Isabelle/HOL Apply-Style Proofs to Structured Isar
Announce Type: replace Abstract: In Isabelle/HOL, declarative proofs written in the Isar language are widely appreciated for their readability and robustness. However, some users may prefer writing procedural "apply-style" proof scripts since they enable rapid exploration of the search space. To get the best of both worlds, we introduce Apply2Isar, a tool for Isabelle/HOL that automatically converts apply-style scripts to declarative Isar.
Systematic Gray-Box Identification Methodology for Voltage Source Converters
arXiv:2606.03567v1 Announce Type: new Abstract: This paper introduces a systematic gray-box identification framework for voltage-source converter models based solely on terminal time-series data. The proposed approach combines a physically informed white-box standard model with iterative time-domain calibration to estimate controller parameters that mimic the behavior of the black-box model in electromagnetic transient (EMT) simulations. Unlike conventional frequency-domain identification...
Woman gym trainer, father accused of converting UP bizman's son to Islam
Police in Uttar Pradesh's Shamli district have arrested a woman and her father and booked nine people in connection with the alleged religious conversion of a 30-year-old man, officials said on Sunday. The arrested accused have been identified as Chandni Qureshi and her father, Islam Qureshi. According to the complainant, Chandni worked as Ayush Malik's physiotherapist and gym trainer before allegedly developing a relationship with him.
Converted, Not Equivalent: Benchmarking Codebase Conversion via Observational Equivalence
Announce Type: replace Abstract: Coding agents increasingly act as codebase-scale collaborators that can assist with codebase conversion, but this progress has exposed a critical weakness: agents often over-trust their own local validation routines and declare success on artifacts that satisfy surface checks while violating the semantic contracts users actually care about. This problem is especially acute in codebase conversion, where prior evaluation is largely outcome-driven and therefore...
Dalio Sees AI Bubble Bursting as Wealth Is Converted Into Money
Ray Dalio, founder of Bridgewater Associates LP, during a Bloomberg Television interview during the World Economic Forum (WEF) in Davos, Switzerland, on Thursday, Jan. 22, 2026. The annual Davos gathering of political leaders, top executives and celebrities runs from Jan. 19-23.