There are both traditional mode and high-efficiency mode:
- The traditional mode is IGBT+fast recovery diode mode, with efficiency ≥95% (with 20 years of production experience).
- The high-efficiency mode is the first of our company, SiC+synchronous rectification mode, with efficiency ≥97%
Stable and reliable harmonic control method:
- *750V DC bus total power supply mode, the rectifier cabinet has patented technology, which can ensure that the rectifier silicon component can be replaced and maintained online when it is damaged, without affecting user production.
- *"One-to-one" equivalent 24-pulse phase-shift harmonic control method, the phase-shift harmonic control device has no electronic circuit, the control device is stable and reliable, and it is in the same box as the power module.
- *The monocrystalline silicon power supply is a high-frequency switching power supply developed based on high-frequency devices, high-frequency inverter, phase-shift full-bridge, and PWM control technology.
- *The monocrystalline silicon high-frequency switching power supply has high efficiency and power factor, and the output waveform quality is good.
- *Multi-module parallel structure, while N+1 mode can be expanded, with online thermal maintenance function, high reliability of the power supply.
- *When any module is turned off or on, the power cabinet can work with equal current again without affecting normal production, and the equal current error is <1%.
- *Multiple control modes such as constant voltage, constant current and constant power can be selected.
- *Convenient power calibration and high precision, power accuracy error <±0.01KW.
- *Local centralized control with color touch screen, remote analog interfaces such as 0-10V, 4-20MA, and communication interfaces such as RS485 and Ethernet are provided, which are flexible to control.
- *Patented unit module structure, no water joints, to avoid water leakage.
- *The power cabinet reserves the power circuit breaker of the single crystal furnace control cabinet, vacuum pump circuit breaker, simple harmonic filter tank circuit breaker, and spare circuit breaker, which can be designed according to the actual needs of the site.
- *The core components are international first-line products, and the main control system adopts its own multi-loop control technology with strong stability.
- *The structure adopts anti-salt spray acidification measures, which can prevent the influence of dust on site and has high reliability.
High reliability: The power supply adopts foreign first-line brand devices, adopts military standard derating design, production process, and aging standards. The circuit board can effectively prevent salt spray, dust, moisture, mildew, etc. The multi-module parallel redundant design ensures reliable operation of the power supply.
Excellent output characteristics: High-precision low-temperature drift sampling devices are used, and the output accuracy is high: FPGA digital and analog hybrid control ensures fast power control response speed, good dynamic characteristics, and good current consistency.
Strong power supply anti-interference ability: The power supply control circuit and the power supply input and output power circuit adopt full isolation design measures, and the interface protection circuit is complete, which can adapt to industrial application environments with harsh electromagnetic interference.
