D. R. Critchley

A ew Hybrid Multi-Level Voltage-Source Converter with DC Fault Blocking Capability

D. R. Critchley, R. W. Crookes, D. Critchley, 2010 .

High performance AC motor controller

R. Jones, D. R. Critchley, 1989 .

Motor and inverter design criteria for variable-speed and vector controlled AC drives

D. R. Critchley, S. K. Al-Lami, I. J. Williams, 1989 .