Enclosed DC-DC converter PowerPard

Buck-Boostadjustableprogrammable

1.Overview PowerPard battery simulator adopts buck-boost tactics to control the main circuit, and advanced PWM rectification technology on AC side to realize bi-directional control of DC and AC energy. It can optimize the power factor and reduce harmonic in partial grid. On DC side, advanced three-phase staggered current sharing control technology is applied, realizing features for DC bus voltage: high-precision & low-ripple output, adjustable wide range, quick dynamic response, etc. PowerPard battery simulator is also programmable, and can be secondarily developed and applied with the help of host software or remote test & control software. It can be used for development and test of following applications: Energy storage system/on-grid inverter system Energy recycling system Test system for EV motor/controller Test system for EV transmission/powertrain system Test system for dedicated EV motor/controller Test system for dedicated EV transmission/powertrain system Test system for electric transmission/driving system of ships/vessels 2.Features High-precision 16-bit AD sampling chip and advanced software sampling timing sequence algorithm are adopted, realizing output voltage precision up to ± (0.1%·FS+5dgt), and current precision up to ± (0.1%·FS+5dgt) Advanced PWM rectification technology is adopted on the active front end, which can not only emit/absorb low harmonic distortion current (THD≤3%) from grid, reducing the voltage harmonic, but also control the unity power factor (PF>0.99), and improve the power factor. Besides, it is compatible to the voltage imbalance of grid, and can withstand sudden change of voltage