Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

Today, the majority of commercial electrified vehicles use Interior Permanent Magnet Motors (IPMSMs) for propulsion. An IPMSM can deliver high starting torque and efficiency in low- medium-speed operation, which makes it attractive propulsion applications. However, IPMSMs generally utilize rare-earth permanent magnets there are growing concerns about price volatility supply chain these materials. Switched Reluctance (SRMs) potentially replace various applications including SRM has a simple low-cost construction, provide reliable operation at high-speed high-temperature conditions. Compared to IPMSMs, SRMs radiate considerably higher acoustic noise, have historically hindered their widespread acceptance. Various approaches mitigate noise vibration source level already been explored literarture by improving electromagnetic design current control. This paper explores multiple mitigation methods that be applied transmission stage. First, comparison between Internal Combustion Engine (ICE) is discussed, then used ICEs presented applicability SRMs.