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 · 492 citations · Full text

Engineering, Dq-domain Impedance Definition, Power Electronics Converter +18

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

Jing Lyu, Xin Zhang, Xu Cai et al. · IEEE Transactions on Power Electronics · 2018 · 317 citations · Full text

Electrical Engineering, Mmc Impedance, Harmonic State-space +11

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 · 262 citations

Electrical Engineering, Siso Impedance Models, Engineering +13

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 · 257 citations

Wind Farm Integration, Electrical Engineering, Engineering +13

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 · 182 citations

Wind Farm Integration, Electrical Engineering, Controller Parameters +13