According to the design life of 20 years, the early operation of our country's wind farms have entered the late stage of operation. With the increase of operating time, wind farms are generally faced with the problem of declining power generation efficiency, and wind energy resources are seriously wasted. On June 5, the national energy administration (NEA) proposed to encourage the upgrading of wind farms that have been connected to the grid for more than 15 years or have a single turbine capacity of less than 1.5 MW. It can be expected that the transformation of wind power will usher in new opportunities.
A wind farm in Suizhou, Hubei Province, has undergone a technological transformation with the help of Wo Wang Electric. The Power Module of wind power converter provided by Wo Wang Electric Company makes the wind power converter of the 1.5 MW wind power generating set on site a new look. This is the first wind power converter power module replacement project of a well-known brand in the industry. After the prototype retrofit, the project has been connected to the grid for more than half a year.There are 3 sets of power modules in the converter, double windings on the machine side, 2 sets of power modules for a single winding, and 1 set of Chopper module. Before retrofit, the bus capacitance and power components are close to the service life, and the power modules have many problems, such as high failure rate, poor adaptability to environment, IGBT insulation failure, difficult spare parts, etc. . Therefore, hopan electric converter for power module replacement transformation.
The newly developed Power Module includes IGBT and drive board, Photoelectric Transfer Board, bus capacitance, Hall effect sensor, etc. . The ASIC board in the original power module can be removed and reinstalled on the new module. During installation, the new module is completely compatible with the original module in structure, water, electrical interface, etc. . There is no need to change the original control system of the converter or adjust the main control code to achieve the same replacement. After transformation, the power module uploads the temperature, current and other signals to the ASIC board accurately, and at the same time receives the driving commands issued by the ASIC accurately.
In this project, Hopan Power Module completely solves the hardware design risk of the original converter power module, and the overall performance is better. The new designed heat dissipation unit can effectively reduce the operating temperature of the module and the high temperature overheat failure rate of the unit. Multiple advantages, increase efficiency and gain.1, the converter module localization, solves the neck jam question
2, the performance is excellent, and has the higher economical efficiency
3, the spare parts are sufficient, the purchase cycle is short;
4, solve the problem of the original power module overheating, device aging, explosion, etc.
5, compatible with the original control system, no need to adjust the software, no differential replacement;
6, the field transformation workload is little, the installation is convenient, the construction period is short
7, the professional team, the service center spreads over the country, after-sales has the guarantee;
The project took only three days to replace all the power modules and fully integrate them into the grid. The wind turbine has not experienced any fault so far, thus solving the customer's long-standing maintenance problems, wind Farm benefits boost. In the service process, the HOPAN team also helped the customer to deal with some other issues of the converter, the technology and products have been highly praised by the customer.
