Xu Cai

A Modified Sequence-Domain Impedance Definition and Its Equivalence to the dq-Domain Impedance Definition for the Stability Analysis of AC Power Electronic Systems

Atle Rygg, Marta Molinas, Chen Zhang et al. · IEEE Journal of Emerging and Selected Topics in Power Electronics · 2016 · 503 citations · Full text

Engineering, Electrical Engineering, Systems Engineering +15

Harmonic State-Space Based Small-Signal Impedance Modeling of a Modular Multilevel Converter With Consideration of Internal Harmonic Dynamics

Jing Lyu, Xu Cai, Marta Molinas · IEEE Transactions on Power Electronics · 2018 · 329 citations · Full text

Engineering, Electrical Engineering, Circuit Theory +14

Sequence Domain SISO Equivalent Models of a Grid-Tied Voltage Source Converter System for Small-Signal Stability Analysis

Chen Zhang, Xu Cai, Atle Rygg et al. · IEEE Transactions on Energy Conversion · 2017 · 269 citations · Full text

Engineering, Electrical Engineering, Systems Engineering +16

Frequency Domain Stability Analysis of MMC-Based HVdc for Wind Farm Integration

Jing Lyu, Xu Cai, Marta Molinas · IEEE Journal of Emerging and Selected Topics in Power Electronics · 2015 · 261 citations

Engineering, Electrical Engineering, Energy Systems +16

Optimal Design of Controller Parameters for Improving the Stability of MMC-HVDC for Wind Farm Integration

Jing Lyu, Xu Cai, Marta Molinas · IEEE Journal of Emerging and Selected Topics in Power Electronics · 2017 · 184 citations · Full text

Engineering, Electrical Engineering, Energy Systems +16