R&d Internship

**R&D Internship - Frequency and time domain stability assessment of nonlinear current controllers for grid-connected converters (80-100%)**:
**Take your next career step at ABB with a global team that is energizing the transformation of society and industry to achieve a more productive, sustainable future. At ABB, we have the clear goal of driving diversity and inclusion across all dimensions: gender, LGBTQ+, abilities, ethnicity and generations. Together, we are embarking on a journey where each and every one of us, individually and collectively, welcomes and celebrates individual differences.**:
In R&D team in Turgi, medium voltage power electronic converters are being designed and developed for power levels higher than 12MW. These converters are primarily used for high power offshore wind turbines. A very important element of their control is the current controller. The current controller must contribute to the damping of disturbances that may appear in the grid by emulating a resistor in the converter output impedance in a wide frequency range.

**Your responsibilities**:

- Analyze and extend mathematical models of the effective converter output resistance for converters with nonlinear current controllers including the outer control loops in grid following and grid forming mode of operation
- Validate the mathematical models in the frequency domain via simulation
- Validate the mathematical models in time domain via simulation

**Your background**:

- Currently pursuing a master’s degree in Electrical Engineering or similar field
- Good working knowledge of MATLAB and Simulink
- Interest in the following fields: control theory, power electronics
- Courses in control theory (PID, lead/lag compensation), nonlinear systems, and model predictive control are desirable
- Strong interest in research is desirable
- Proficiency in English

**More about us**: