This paper deals with plans and measurements of
BLDC motor applying the Soft Magnetic Composite (SMC) of the
same iron powder. Also, using SMC standards in motor design are
provided. In comparison to the normal three-dimensional shape of
the silicon steel production, the SMC core material has some
merits in high speed motor and reducing the core loss. Through the
first 2-D design, the measurement of SMC core materials in the
BLDC motor is implemented. For application, a compact
refrigerator production using SMC compression 120W level of
3-phase BLDC motor applying soft magnet in the motor
characteristics is described. r
fan air flow rate. A dynamic model of the system components
is first derived by using mass and energy balance laws. The
linear quadratic regulator technique is then applied to
simultaneously control the valve and condenser fan in order to
adjust the refrigerant and air mass flow rates with the
objective of enhancing the system performance. The obtained
results for the closed-loop system under control have shown
that up to 14% electricity can be saved using the proposed
system under multivariable control, as compared to a
conventional system. This is due to the higher refrigeration
effect in the direct expansion evaporator which allows for a
performance gain. Thus, the new design is promising for
improving the system performance while fulfilling the cooling
demands as well as achieving high energy efficiency.