Power system junction temperature control

摘要

An electrical power generating system including a power generating device, a power converter connected to the power generating device, and an electrical controller connected to the power converter. The electrical controller is configured to limit a peak junction temperature of the power converter by applying at least one junction temperature derating function.

主权项

1. An electrical power generating system, comprising: a power generating device; a power converter connected to the power generating device; and an electrical controller connected to the power converter, wherein the electrical controller is configured to limit a peak junction temperature of the power converter by applying at least one junction temperature derating function and wherein a power derating factor derived from the junction temperature derating function is applied to the electrical controller to reduce at least one of an output power, current or voltage of the power converter, wherein the power derating factor is based on a minimum power derating factor selected from a plurality of power derating factors, each power derating factor derived from a respective junction temperature derating function, wherein a first power derating factor of the plurality of power derating factors has a first numerical value and a second power derating factor of the plurality of power derating factors has a second numerical value, the electrical controller further configured to compare the first numerical value with the second numerical value, determine the lower value of the first numerical value and the second numerical value, and select the lower value as the minimum power derating factor.