Recently, the network intelligence research± 320kV/1000MW DC flexible, Purell engineering company developed with completely independent intellectual property rights of the converter valve tower in DNV KEMA laboratory witness, and all the type test to complete the IEC62501 standard, marks the flexible DC voltage level the highest, the world largest capacity of the converter valve and valve control equipment developed.

Flexible DC transmission technology is the solution of offshore wind power Grid-connected, isolated power supply, the optimal city distribution network solutions, cutting-edge technology but also in recent years the field of international network of high-profile. China and Norway and other countries signed a framework agreement, joint development of offshore wind energy. The world highest level, high capacity of flexible HVDC converter valve and the valve control device is developed, which is following the HVDC converter valve, and strategic highland China State Grid Corp in the field of high-end equipment occupied grid.

It is reported,±320kV/1000MW flexible HVDC converter valve and valve control equipment at the Dalian development across the sea of HVDC flexible major technology demonstration projects, converter valve device flow level reached the limits of application, the converter valve module voltage and current levels and valve control system control ability of hitherto unknown challenge. The high-end equipment after the international has not been reported successfully developed.

After fighting for two months, researchers including the completion of the valve end insulation test, load test, short circuit current test, 6 categories and 18 items of type test. Among them, the valve end of AC and DC voltage withstand test is used for the first time in the international field of HVDC flexible. Converter valve peak currents up to 1800A, the creation of the world's flexible HVDC test parameters of the core.