When a dc to ac converter is used to interface dc loads or dc power sources to the ac grid its
efficiency can be defined in a similar manner to dc converter: efficiency = Pout/Pin. However,in some special applications we may use the converter without any dc load at all, and have it behave merely as a device that draws/injects controllable amounts of reactive power from/to the grid. Describe the problem with using the above definition of efficiency in this case. As an example, consider a converter drawing 50+j2000 VAand having no power exchanged on the dc side with loads or sources. Its efficiency is clearly 0%. For such systems what would be a better normalized measure to rate the converter?
I'm stuck on this question. TBH, I'm not getting reactive power. Is it the power dissipated by inductor/ capacitor?
efficiency can be defined in a similar manner to dc converter: efficiency = Pout/Pin. However,in some special applications we may use the converter without any dc load at all, and have it behave merely as a device that draws/injects controllable amounts of reactive power from/to the grid. Describe the problem with using the above definition of efficiency in this case. As an example, consider a converter drawing 50+j2000 VAand having no power exchanged on the dc side with loads or sources. Its efficiency is clearly 0%. For such systems what would be a better normalized measure to rate the converter?
I'm stuck on this question. TBH, I'm not getting reactive power. Is it the power dissipated by inductor/ capacitor?