FIG. 3 illustrates a flowchart of an example method 300 of controlling the voltage of a system using two voltage controllers that operate (e.g., measure voltage and issue control commands) at different cyclic PWM patterns. These controllers may be referred to as an “oversampling controller” and a “steady-state controller.” The system may be configured such that the steady-state controller controls the voltage during steady-state operations, but the oversampling controller controls the voltage during high-transient events. The period of the PWM cycle of the oversampling controller may be significantly shorter than the period of the PWM cycle of the steady-state controller, and thus the oversampling controller may measure voltage more often, and may be able to issue commands to the converter (or converters) of the system more frequently.

The voltage of the system is measured by both controllers at block 302. At block 304, it is determined whether the absolute value of the voltage change, based on the measurement at block 302, is above a voltage-change threshold. In some embodiments, both controllers may perform block 304, for the purposes of visibility. This may be beneficial, for example, in embodiments in which the two controllers communicate to determine which controller will issue pulse commands to a converter. In other embodiments, only the oversampling controller may perform block 304. This may be beneficial, for example, in embodiments in which the steady-state controller may be unaware of the oversampling controller (and the oversampling controller may be unaware of the steady-state controller), but in which the oversampling controller's commands may override the commands of the steady-state controller.