Full set of motor-dynamometer is designed to
test performance, efficiency, & durability of the electrical powertrains
of EV/HEV. It consists of a bidirectional DC Power Supply (battery
simulator), test bed, utilities, and a low inertia (induction) motor
which provides load to a test motor in a wide range of speeds & torque.
Typical specifications are 150kW, 16,000rpm, 450Nm.
Battery Simulator (BTS) ;
AC-DC Power Supply
Battery Simulator consists of a PWM (AC-DC) converter and a high performance bidirectional DC-DC
converter. It provides galvanic isolation and guarantees unity power factor.
Typical output voltage range covers 50~500VDC with 500A max. current. With a special order the
minimum voltage range can be reduced to 20VDC, or the maximum can be increased to 1,000VDC.
The bidirectional AC-DC Power Supply can be used for power source/sink for motor control and dynamic load
to battery charger, solar cell inverter, converter under testing. It is a stand alone item, and some brands
under 60kW are mounted into a moving rack. So it is suitable for research & development in a
laboratory, as well as factory test.
EV propulsion motors are can be designed with a high power density and high efficiency. Long development
experiences of EPT Co., Inc. can satisfy customers’ special needs and requirements. The specialty covers
the design of PMSM & induction motor for passenger & commercial EVs, as well as special motors for
eSports vehicles and drone.
EPT Co., Inc. also provides EV inverter H/W solutions with a small form factor and high efficiency. It can
develop a motor control program with an optimized torque-flux map accounting for the nonlinearity
of the motor. Prototype developments or components delivery are feasible.