Nikolay Lyuboslavov Hinov

Performance Boundaries of Hybrid Photovoltaic–Battery Inverters Under Dynamic, Unbalanced, and Grid Disturbance Conditions

Hybrid photovoltaic (PV)–battery inverters are increasingly required to provide functions extending beyond conventional energy conversion, including zero-export operation, battery coordination, grid support, and backup supply. However, rated power and peak efficiency alone do not...

Physics-Informed Explainable Machine Learning for Hybrid State of Health and Remaining Useful Life Estimation of Lithium-Ion Batteries

Accurate health assessment is essential for the reliable and cost-effective operation of lithium-ion battery energy storage systems. This study presents a physics-informed explainable machine-learning framework for hybrid State-of-Health (SoH) estimation and Remaining Useful Life...

Evidence-Grounded Runtime Assurance for AI-Assisted Power-Electronics Design: Three-State Constraint Semantics and Deterministic Validation

AI-assisted engineering workflows can assign stronger validity claims than their evidence supports. This study develops an executable evidence contract for preliminary power-electronics design by instantiating established multi-valued monitoring. A deterministic monitor checks in...

Non-Compensatory Security and Utility Gates for Blockchain Lifecycle Assessment: Framework Development and an Operational-Energy Application to the Ethereum Merge

Environmental comparisons of blockchain systems are often reduced to electricity per transaction, although operational services also depend on validators, cloud gateways, storage, monitoring, key management, recovery, and hardware replacement. This study develops a lifecycle asse...