Motors with permanent magnets:

Motor design and features
Motors dedicated to variable speed drives, such as electric vehicles drives, should be characterized by high efficiency, high overload capacity and wide range of rotational speed control. These demands are fulfilled by synchronous motors with permanent magnets, designed with two-zone speed control. The first control zone covers speeds from zero speed to base speed nb; the motor runs with constant voltage to frequency ratio U1 /f (i.e. constant magnetic flux) and its electromagnetic torque T is more or less proportional to supply current I1. This is constant torque operation zone.
When motor attains base speed nb, the supply voltage is equal to maximum voltage U1max, which may be generated by power electronics converter, supplied from e.g. battery.

Motors with permanent magnets

Motors with permanent magnets

When speed is greater than base speed nb, motor operates in second control zone; increase of rotational speed is possible when magnetic flux in the air gap is adequately weakened.
When supply current I1 is constant, motor’s mechanical power Pm is also constant; this is constant power operation zone.

Using electrical motor together with power electronics converter results in:
– significant decrease of transport costs (per 100 km) in relation to ICE vehicles (the expected cost of 100 km route should not exceed 5 zł, which is equivalent to less than 1 litre of fuel)
– lack of detrimental emission (most significant in city traffic),
– possibility of energy recuperation during braking,
– silent, safe and reliable operation,
– traction parameters same or better compared to present-day traction vehicles (greater acceleration and more effective braking),
– less wear of braking system elements such as brake shoes and disks,
— incomparably higher efficiency of energy transformation in drive circuit (in case of most modern IC engines efficiency does not exceed 45%, while modern electrical motor is characterized by energy transformation efficiency – electrical to mechanical – in excess of 90%).

Phosphate Plated Motor Magnets

Phosphate Plated Motor Magnets

Phosphate Plated Motor Magnets, Phosphate Coated Sintered Neodymium Segment Magnet, Phosphate Coated Rare Earth Neo Block Motor Magnet, Sintered Neodymium Iron Boron China Manufacturer Phosphate Plated Motor Magnets Feature – Neodymium magnets are also known as Neodymium-Iron-Boron or Nd-Fe-B or NIB super magnets since they are composed of these elements. The chemical composition is Nd2Fe14B. […]

Phosphate Coated Magnets

Phosphate Coated Magnets

Phosphate Coated Magnets, Phosphate Plated Sintered Neodymium Block Magnet, Phosphate Coated Rare Earth Neo Block Magnet, Sintered Neodymium Iron Boron Magnets China Manufacturer Phosphate Coated Magnets Block feature: Neodymium magnets are a type of rare earth magnet. They are very strong relative to their size. They are often referred to as rare earth magnets because they […]

Passivation Plated Sintered Neodymium Iron Boron

Passivation Plated Sintered Neodymium Iron Boron

Passivation Plated Sintered Neodymium Iron Boron, Passivation Coated Neodymium Segment Magnets, Phosphate Coated Rare Earth Block Neo Magnet, Sintered Neodymium Iron Boron Plate Magnets China Supplier Passivation Plated Sintered Neodymium Iron Boron feature: Neodymium magnets are a type of rare earth magnet. They are very strong relative to their size. They are often referred to […]

Passivation Coating NdFeB Magnets for Motor

Passivation Coating NdFeB Magnets for Motor

Passivation Coating NdFeB Magnets for Motor, Passivation Plated Neodymium Segment Magnets, Phosphate Coated Rare Earth Neo Arc Magnet, Sintered Neodymium Iron Boron Arc Magnet China Supplier Passivation Coating NdFeB Magnets for Motor feature: Neodymium magnets are a type of rare earth magnet. They are very strong relative to their size. They are often referred to as rare […]

Copper Coating NdFeB Magnets Block

Copper Coating NdFeB Magnets Block

Copper Coating NdFeB Magnets Block, Cu Plated Neodymium Block Magnets, Copper Coated Rare Earth Neo Block Magnet, Sintered NdFeB Magnetic Cube Neodymium Iron Boron China Supplier Copper Coating NdFeB Magnets Block Cubes feature: Neodymium is a rare earth type of permanent magnet made from an alloy of neodymium, iron, and boron. Neo magnets are currently the strongest permanent […]