[Robert Murray-Smith] doesn’t like the price of inverters to convert DC to AC. That led him to build a dynamotor, or what is sometimes called a motor-generator set. These devices are just DC motors ...

Abstract: This paper presents the systematic design and implementation of a photovoltaic (PV) emulator using a Permanent Magnet DC (PMDC) motor-generator set. The emulator accurately replicates the ...

Solid-state ac supplies replace motor-generator and tap-changing transformers to offer the same tests at the push of a button • Solid-state ac-power sources combine the variable-frequency and ...