Research on the debugging process of transformer rectifier

In the debugging process, the inverter rectifier should pay attention to the following points: carefully confirm the inspection items before the experiment, avoid short circuit, grounding and other faults during power-on, confirm the polarity of each transformer, and calibrate the transformer. Make sure that the pulse on each rectifier component is correct. The main circuit is connected to the low-voltage power supply first, and then the voltage and current control parameters of the rectifier are pre-commissioned. Pay special attention to prevent electric shock when debugging the rated voltage. The debugging results show that the dual PWM frequency conversion system works reliably, and the three-level PWM vector conversion control idea adopted by the rectifier has advanced technology and stable system operation, and realizes the rectifier operation target of cos5=1.0.

The degree of automation is high, the number of on-site detection signals is large and scattered, and piles of steel and irregular free parking often occur in production, and it is difficult to determine the cause of the failure. The data acquisition and analysis (PDA) system continuously monitors and records the operation information of the entire line of automation systems, and can analyze the recorded signals offline to find the initial signal causing the failure, which largely solves the above problems.

The PDA system is supplied by Siemens AG of Germany with the complete line of rolling line automation control systems. Since the original system initially set up less signal acquisition, some problems that occurred after production could not be analyzed clearly by the existing signals, so the Angang high-line factory reconfigured and modified the signal acquisition of the original system. The industrial control software realizes the connection and data exchange between the upper and lower machines. The internal memory of the PLC is used as a variable, and is transmitted and processed in the form of bytes, words, double words, etc., and the hardware connection of the upper and lower machines is passed through the PC provided by SIEMENS. PPI cable to achieve.

Tier 1 Solar Panel

Chinese Tier 1 brand Solar Panel (Longi, Jinko, Trina, Canadian, Ja etc.)

This type of product is mainly Tier 1 solar module product in China, include Longi solar panel. Jinko solar panel, Canadian Solar panel, ja solar panel etc.all of which are among the top 10 world-renowned brands. The original A grade product is mainly mono crystalline and half cut cell solar modules, with a power range of 400watts to a maximum of 700watts.quality warranty is 25 years.

A grade, this type of film is characterized by a neat and uniform appearance, printed electrode grid lines, no broken grid, no surface stains, no leakage, no aluminum package, no hidden cracks, no scratches, no black core, no reverse current, stable electrical performance, and high conversion efficiency
Using solar cell testing equipment to measure and screen, the conversion efficiency, filling factor, and appearance that meet certain standards are first level. Generally, the conversion efficiency, filling factor, and appearance of first level are better than those of level B
The level of solar panels can be divided into first level, second level, third level, and fourth level, and the first level components can be divided into first level+and first level - two levels. The second level is also the same, and the cost difference between different levels of solar panels is also very large.

Chinese tier 1 brand solar panel

Tier 1 Solar Panel,Mono Solar Panel N Type,Solar Panels Bifacial 555 Watt,Solar Panel Mono Topcon Cell

PLIER(Suzhou) Photovoltaic Technology Co., Ltd. , https://www.pliersolar.com