One the Possibility of Developing a 5 kW Permanent Magnet Self Rotating Motor with 8 Pole Stator and its Counter Rotation

This paper presents the design and theoretical analysis of a 5-kW permanent magnet self-rotating motor featuring a novel dual rotation mechanism where both rotor and stator carry powerful permanent magnets and physically rotate in opposite directions at a 2:1 speed ratio. The motor eliminates conventional copper windings, relying solely on magnetic flux interactions to generate torque. This leads to improved efficiency, higher torque density through multi-pole design, and significant material savings in copper. The longevity of magnetism is addressed, showing negligible flux loss over decades under proper thermal and mechanical limits. To sustain continuous operation and overcome inevitable mechanical and magnetic losses, an auxiliary power input (e.g., from an IC engine, solar, or battery source) is necessary to maintain stator rotation; truly running without external power is not physically viable. The motor’s eco-friendly design supports global environmental goals by reducing fossil fuel dependence, lowering emissions, and enabling cleaner energy conversion. Deployment of 5-kW permanent magnet motors on a subsidy basis in residential homes has the potential to significantly alleviate power grid supply issues by decentralizing power generation and reducing peak demand on centralized grids. Widespread adoption of such motors for local generation can improve grid stability, lower transmission losses, and provide reliable clean energy access, contributing to resolving power shortages at community and national levels. This paper integrates electromagnetic theory, mechanical design, environmental context, and sustainability considerations toward a practical and innovative electric motor solution. Based on its conceptual and theoretical understanding and validation by the scientific community, we intend to proceed further with practical implementation, starting with prototype development. Interested research groups, institutes, and industry stakeholders with adequate funding are invited to collaborate on designing, prototyping, and refining such motors, and to openly share findings to contribute toward sustainable clean energy solutions in response to the escalating global power crisis. The design incorporates sixteen high-grade N52 neodymium bar magnets of (0.7 to 1.0) tesla, each measuring 300 mm x 60 mm x 30 mm, strategically mounted on both the rotor and stator to maximize magnetic flux interaction. The total estimated cost for the prototype, including magnets, mechanical structures, auxiliary drive, and control electronics, is around ₹6 to ₹7 lakh. To ensure smooth, efficient, and reliable long-term operation, the motor is deliberately designed to deliver twice the required power output, providing a margin that compensates for mechanical losses and enhances durability The motor produces a continuous output power of 5 kW under ideal conditions, generating approximately 43,800 kWh annually. Considering the average commercial grid electricity cost in India in 2025 ranges from ₹8 to ₹10 per kWh, this results in significant energy cost savings of approximately ₹3.5 to ₹4.3 lakh per year compared to conventional grid electricity, and even greater savings when compared to diesel generators. The capital investment can be recovered within two years solely through these operational cost savings. Additional benefits include low maintenance requirements, quiet and vibration-free operation, and suitability for decentralized power generation in residential and rural environments. This motor thus represents a promising, sustainable, and forward-looking technology for clean energy applications.