Aftermarket Senior Control Systems Engineer – Frequency Converters
Position purpose
As a Control Systems Engineer, you will be responsible for the architecture, design and stability assurance of advanced control systems for high-power converters connected to the power grid. The position reports to the Head of Engineering, but involves a high degree of independence and low supervision.
Your Tasks
- Development of multi-loop control architectures for MW-scale converters/inverters (inner current loops, outer voltage and power loops).
- Definition of converter/inverter topology, selection of control methods, and system integration approach for the company’s new products.
- Small-signal modeling, state-space representation, and frequency-domain stability analysis.
- Impedance-based stability assessment and interaction analysis with weak and strong grids.
- Design and implementation of PLL, grid-following, and grid-forming control strategies.
- Compliance with grid code requirements (LVRT/HVRT, fault ride-through, reactive power support).
- Advanced digital control implementation (sampling, delays, discretization effects).
- Model-based design using MATLAB/Simulink, including auto-code generation concepts.
- Validation through SIL, HIL, and support during prototype bring-up, commissioning, and field testing.
- Close collaboration with system, hardware, and embedded software teams to optimize performance, robustness, and scalability.
Other Functions
- Providing technical support to junior engineers and assisting in the expansion of the control engineering team.
- Defining control software architecture and interfaces with embedded platforms.
- Participating in the creation of intellectual property (patents, technical disclosures).
Requirements
- BS degree in Electrical/ Electronic Engineering required. Post-graduate technical degree desired.
- Greater than 5 years in related field required, including post-graduate experience.
- Strong knowledge of power electronics and MW-scale converter/inverter systems.
- Deep understanding of control theory applied to power converters (current, voltage, power, and DC-link control).
- Proven experience with grid-connected converters, including grid-following and grid-forming control concepts.
- Solid background in small-signal modeling, state-space analysis, and frequency-domain stability methods.
- Experience with impedance-based stability analysis and interaction with weak grids.
- Hands-on skills in model-based design using MATLAB/Simulink.
- Knowledge of digital control implementation, including sampling, delays, discretization, and real-time constraints.
- Familiarity with modulation techniques (PWM, SVM, multilevel modulation).
- Understanding of grid codes and standards (LVRT/HVRT, reactive power, fault behavior).
- Experience with SIL, HIL, and PHIL validation and system-level testing.
- Ability to define converter/inverter topology, control methods, and system integration approaches.
Equal Opportunity Statement
As an equal chance employer, ConverterTec Group highly appreciates female applicants and is committed to fostering diversity and inclusion in our workforce.