Patent ID: 8471514

Claim:
A power conversion system, comprising: a rectifier comprising: an AC input circuit with a rectifier input filter and a plurality of AC input nodes to receive AC electrical input power, a DC output with first and second DC output nodes, and a plurality of rectifier switching devices individually coupled between one of the AC input nodes and one of the first and second DC output nodes, the rectifier switching devices individually operative to selectively couple the corresponding AC input node with the corresponding DC output node according to a corresponding rectifier switching control signal; an intermediate DC circuit comprising first and second DC current paths coupled with the first and second DC output nodes of the rectifier; an inverter comprising an AC output with a plurality of AC output nodes for supplying power to a load, the inverter operative to convert DC power from the intermediate circuit to provide AC electrical output power to the load; and a switch control system with a rectifier control component comprising: a switching angle generator operative to compute a set of rectifier switching angles substantially in real time based at least partially on at least one signal or value indicative of source harmonics at the AC input of the rectifier and on a transfer function of the rectifier input filter, and a PWM controller receiving the set of rectifier switching angles from the switching angle generator and operative to provide pulse width modulated rectifier switching control signals to the rectifier according to the set of rectifier switching angles to cause the rectifier to convert AC electrical input power to provide regulated DC power to the intermediate DC circuit.