Fourteen bidirectional DC power supply performance characteristics
The bidirectional DC power supply is a high-precision, high-reliability, programmable, dual-automatic bidirectional operation high-precision bidirectional regenerative DC power supply system.
Its DC output characteristics have high precision and high dynamic response characteristics, and have the function of feeding back energy to the grid, and have two characteristics of power supply and load at the same time.
Full digital control is adopted, with high control precision, fast response speed and wide range of output adjustment.
The output has a programmable function, and can be used in various occasions through different control software.
It can simulate battery output characteristics, battery charge and discharge characteristics, including the number of series and parallel cells;
The SOC index and the characteristics of the internal resistance change during the battery discharge process can be used for charging and discharging tests for the battery pack.
Equipped with powerful intelligent control software, it can control the main test parameter settings on the remote PC;
Complete complex curve simulation, record simulation process data in real time, and automatically save experimental measurement data.
Features of bidirectional DC power supply:
1. It has various output forms such as constant voltage, constant current, and constant power.
2. With automatic voltage drop compensation function, it can automatically compensate line voltage drop.
3. Use PWM rectification technology, power factor gt; 0.99, input harmonic lt; 3%, power greater than 93%.
4. High-speed digital control technology is selected, and the output accuracy reaches 0.1%.
5. Use 7-inch touch screen operation and friendly man-machine interface.
6. The output parameters and maintenance parameters are programmable, which can be applied to different types of equipment tests.
7. The internal equipment adopts international brands such as Schneider and Infineon, and the equipment has high reliability.
8. It has a variety of operation interfaces, can complete remote operation, unattended and embedded in the test system.
9. Modular design is adopted, and the later maintenance of equipment is simple.
10. Integrated heat dissipation channel design, low temperature rise, high operation reliability and long service life.
11. Multi-stage filter circuit design and electromagnetic interference shielding and absorption measures ensure reliable operation of equipment.
12. The maintenance system has a built-in AC blocking transformer + LC AC and DC filter, and the input and output are electrically isolated; the AC circuit breaker has a leakage current maintenance function, which can effectively prevent electrical safety accidents.
13. It adopts north-south pole switching, IGBT circuit mode, pure digital industrial frequency isolation power supply, and the output can simulate a variety of DC voltages.
14. Energy can be fed back to the grid:
At the same time, it has two characteristics of power supply and load, and has the function of high-power DC power supply;
Complete the load function of automatic energy feedback to the grid, which has the outstanding advantages of energy saving, consumption reduction, and environmental protection.
Bidirectional DC power supply is mainly used in new energy electric vehicle driving AC and DC motors and controllers, battery pack energy storage systems in the early stage of research and development, later type testing, reliability testing, and product line product delivery testing and other fields.
