摘要:
A system and/or method for controlling a dual-three-phase machine (500) with respect to a power electronics inverter (505) is provided. The dual-three-phase machine includes six phase windings (al, a2, b1, b2, c1, c2) divided into at least two windings groups configured to provide a combination of six voltages that achieve zero common-mode voltage and a significantly reduced common-mode noise current.
摘要:
A system and/or method for controlling a dual-three-phase machine (500) with respect to a power electronics inverter (505) is provided. The dual-three-phase machine includes six phase windings (al, a2, b1, b2, c1, c2) divided into at least two windings groups configured to provide a combination of six voltages that achieve zero common-mode voltage and a significantly reduced common-mode noise current.
摘要:
A drive and motor system and method for a six phase machine with negligible common-mode voltage is provided. The six-phase machine includes six phase windings divided into at least two windings groups (a1, b1, c1; a2, b2, c2) configured to generate a zero common-mode pulse width modulation, and the six phase windings include a common neutral connection (N3), where a maximum modulation index is 1. Common-mode noises are conducted through the six phase windings of the six-phase machine through at least one parasitic capacitor (Cg) to a ground during the zero common-mode pulse width modulation, and the at least one parasitic capacitor (Cg) is a single parasitic common-mode capacitor that concentrates a common-mode capacitance from the common neutral connection (N3). The drive and motor system and method can also include at least one direct current source (Vdc/2+, Vdc/2-) and a six phase inverter switching between positive and negative power of the at least one direct current source.
摘要:
Embodiments herein relate to a rectifier to supply a DC bus that in turn supplies voltage to a converter that drives a motor and configuring the rectifier to minimize or eliminate common mode voltage between the DC bus and the AC source. In this way, the embodiments herein relate to timing and switching a power from the rectifier to the DC bus.
摘要:
A drive and motor system and method for a six phase machine with negligible common-mode voltage is provided. The six-phase machine includes six phase windings divided into at least two windings groups configured to generate a zero common-mode pulse width modulation. The drive and motor system and method can also include at least one direct current source and a six phase inverter switching between positive and negative power of the at least one direct current source.
摘要:
A drive and motor system and method for a six phase machine with negligible common-mode voltage is provided. The six-phase machine includes six phase windings divided into at least two windings groups (a1, b1, c1; a2, b2, c2) configured to generate a zero common-mode pulse width modulation, and the six phase windings include a common neutral connection (N3), where a maximum modulation index is 1. Common-mode noises are conducted through the six phase windings of the six-phase machine through at least one parasitic capacitor (Cg) to a ground during the zero common-mode pulse width modulation, and the at least one parasitic capacitor (Cg) is a single parasitic common-mode capacitor that concentrates a common-mode capacitance from the common neutral connection (N3). The drive and motor system and method can also include at least one direct current source (Vdc/2+, Vdc/2-) and a six phase inverter switching between positive and negative power of the at least one direct current source.
摘要:
Embodiments herein relate to a rectifier to supply a DC bus that in turn supplies voltage to a converter that drives a motor and configuring the rectifier to minimize or eliminate common mode voltage between the DC bus and the AC source. In this way, the embodiments herein relate to timing and switching a power from the rectifier to the DC bus.