Bidirectional DC power supply is a high-precision, high-reliability, programmable, dual-automatic bidirectional operation of a high-precision bidirectional feedback 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 power grid, and have two characteristics of power supply and load at the same time.
Adopt all-digital control, high control precision, fast response speed, and wide output adjustment scale.
The output has programmable function, which can be applied in various occasions through different control software.
Can imitate battery output characteristics, battery charge and discharge characteristics, including the number of series and parallel sections;
The SOC target and the characteristics of the internal resistance change during the battery discharge process can be used for charging and discharging test experiments for the battery pack.
Equipped with powerful intelligent control software, which can control the main test parameter settings on the remote PC;
Complete the complex curve simulation, record the simulation process data in real time, and automatically save the 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 for line voltage drop.
3. PWM rectification technology is selected, the power factor is gt; 0.99, the input harmonic is lt; 3%, and the power is greater than 93%.
4. Using high-speed digital control technology, the output precision 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 is selected from international brands such as Schneider and Infineon, and the equipment is highly reliable.
8. With a variety of operation interfaces, it can complete long-distance operation, unattended and embedded test system.
9. The modular design is adopted, and the later maintenance of the equipment is simple.
10. Integrated heat dissipation channel design, low temperature rise, high operational reliability and long service life.
11. Multi-stage filter circuit design and electromagnetic interference shielding absorption measures to ensure reliable operation of the equipment.
12. The maintenance system has built-in AC blocking transformer + LC AC and DC filtering, and the input and output are electrically isolated; the AC circuit breaker has the leakage current maintenance function, which can effectively prevent electrical safety accidents.
13. Select the north and south poles to change, IGBT type circuit mode, pure digital chemical frequency blocking power supply, the output can imitate a variety of DC voltages.
14. The energy can be fed back to the grid:
It has two characteristics of power supply and load at the same time, and has the function of high-power DC power supply;
Complete the load function of automatic energy feedback to the power grid, with outstanding advantages of energy saving, consumption reduction and green environmental protection.
Bidirectional DC power supply is mainly used in new energy electric vehicle driving AC and DC motor and controller, battery pack energy storage system early research and development, late type test, reliability test, and product line product factory test and other fields.
