As wind turbine rated power increases, the electrical system architecture of turbines is becoming a key design consideration for original equipment manufacturers. Medium-voltage full converter solutions have traditionally been used in high-power platforms, but developments in power semiconductor technology are enabling low-voltage full converter systems at power levels above 10 MW. Ingeteam has presented its technical approach to low-voltage full converter design for next-generation wind turbines.
The concept focuses on the use of modern semiconductor packages, modular system architectures and system-level optimisation to support higher energy density, maintainability and long-term operational reliability.
The design incorporates modular power electronics together with control and protection systems that have been validated for wind turbine applications. The control electronics are designed to meet cybersecurity requirements in line with the International Electrotechnical Commission standard IEC 62443. According to the company, these elements support compact nacelle integration, compliance with grid code requirements and reduced operational risk for both onshore and offshore wind installations.
A central element of the approach is system-level optimisation of the generator and converter. By developing these components as an integrated electrical system, while remaining compatible with different generator technologies, turbine manufacturers can adjust current and voltage levels, address semiconductor limitations and maintain flexibility in response to changing platform designs and supply chain conditions.
