Original ResearchPublished 17 September 2026Continuous inertia optimization for PV-storage virtual synchronous machines via lightweight RBF networks: eliminating parameter discontinuity at the electromechanical edgeFangfang Liu · Chuan Zhou · Yonghang Yang · Zhenping XieFrontiers in Mechanical Engineeringdoi 10.3389/fmech.2026.1949170