Bidirectional DC Test Power Supply
Product Overview:
The programmable bidirectional DC power supply is specifically developed for motor controllers, drive motors, and vehicle testing in the new energy electric vehicle industry. It is developed using core technologies such as four-quadrant PWM rectification, bidirectional BUCK conversion, and pure digital control. It features bidirectional energy flow, 100% energy feedback, high precision, rapid transient characteristics, high conversion efficiency, low grid pollution, rich communication interfaces, and powerful protection functions. It is suitable for preliminary research and development, final type testing, reliability testing, and product line factory testing of electric vehicle motors and their controllers, as well as electric vehicle powertrain systems. It is particularly suitable for applications with opposing test benches.
Bidirectional AC/DC Power Supply is a high-power-factor, high-precision programmable IGBT DC power supply. With full digital control, it features high control accuracy, fast response speed, and wide output adjustment range. It is widely used in fields such as new energy vehicle motor testing, electronic control testing, power battery pack charge-discharge testing, and power electronics testing. The system adopts a two-stage architecture of AC-DC and DC-DC bidirectional conversion, which can effectively stabilize bus voltage fluctuations during sudden loading, thereby improving the dynamic response time of the entire system. The AC-DC bidirectional conversion uses four-quadrant SVPWM technology, enabling bidirectional energy flow with a power factor of up to 0.99 and minimal grid-connected harmonic pollution. The DC-DC bidirectional conversion employs a multi-phase interleaved high-frequency circuit, delivering fast output response and a wide output voltage range.
Technical Features:
Two-stage conversion using IGBT semiconductor circuit with pure digital control, ensuring high reliability and leading-edge technology.
Featuring both power supply and load characteristics, capable of four-quadrant operation with bi-directional energy flow.
Circuit structure adopt three-phase PWM rectification and inversion + DC/DC bi-directional conversion dual-stage circuit, enabling wide-range DC voltage output, high control precision, and fast dynamic response.
Front-stage AC/DC vector control technology with power factor ≥0.99 and THD <3%.
Supports multiple output modes including constant voltage, constant current, and constant power.
High-efficiency power frequency isolation transformer ensures mutual isolation between DC and AC grid sides.
Over ten types of hardware and software protection mechanisms.
7-inch LCD touch screen for display and control.
Equipped with operation history memory function.
Optional RS485 communication,Host computer monitoring , enabling remote data acquisition and surveillance.
Technical Parameters and Selection
