The error measuring the difference between the IA output
common-mode voltage, applied to [M.sub.10a] and [M.sub.10b], and the reference
common-mode voltage ([V.sub.CM]) applied to [M.sub.10c] and [M.sub.10d], is amplified in order to drive the gates of the bias transistors [M.sub.7].
However, the topology that uses series connected cells inverters presents some advantages, as smaller voltage rate (dU/dt) due to existence of higher number levels, producing less
common-mode voltage across motor windings [17].
"When combined with an oscilloscope equipped with the TekVPI interface, it is the first, and only, measurement system capable of accurately resolving high-bandwidth, differential signals, in the presence of large
common-mode voltage with complete galvanic isolation," he said.
The
common-mode voltage (CMV) of the permanent magnet synchronous motor (PMSM) drive system with two-level three-phase voltage source inverter (VSI), as shown in Figure 1, can be approximately calculated according to the voltage between the midpoint of the dc-link capacitor and the neutral point of the three-phase load [1].
Wu, "
Common-mode voltage mitigation for back-to-back current-source converter with optimal space-vector modulation," IEEE Transactions on Power Electronics, vol.
and hence to ensure high rejection of
common-mode voltage at the output, the voltage tracking errors evj must be of such values to maintain [[beta].sub.1] [approximately equal to] [beta].sub.2].
Xu, "Suppression of
common-mode voltage for matrix converter based on SVPWM," Electric Machines and Control, vol.
The NBA3N200S and NBA3N201S both support signaling rates of up to 200 megabits per second (Mbps) and have a
common-mode voltage range -1 V to 3.4 V.
Optimal
Common-Mode Voltage Reduction PWM Technique for Inverter Control with Consideration of the Dead-Time Effects--Part I: Basic Development, IEEE Transactions on Industry Applications, 40(6): 1605-1612.
Kazerani, "
Common-mode voltage reduction methods for current-source converters in medium-voltage drives," IEEE Transactions on Power Electronics, vol.