Harmonic Analysis Engineer for HVDC

The Opportunity Join our HVDC R&D team at Hitachi Energy and help pioneer the future of energy transmission. We are now looking for a R&D Senior Engineer to contribute to the development of advanced control strategies for HVDC systems, including Modular Multilevel Converter (MMC) and Line Commutated Converter (LCC) technologies. This is a unique opportunity to work in a global, collaborative environment focused on innovation and technical excellence. In this role, you will design and optimize control algorithms for MMC- and LCC-based HVDC systems, including multiterminal HVDC (MTDC) configurations. You will also perform small-signal stability analysis, harmonic studies, and transient simulations to ensure robust and reliable system performance. A key part of your responsibilities will be to lead system-level dynamic performance evaluations and drive continuous improvements in control strategies. Additionally, you will mentor junior engineers and actively contribute to strategic technology roadmaps, helping shape the future direction of HVDC control systems and power electronics design. How You Will Make an Impact Contribute to converter topology design, control and protection, and main circuit development for VSC HVDC and LCC HVDC systems. Perform insulation coordination, steady-state and dynamic stability studies, harmonic analysis, and performances under various conditions. Address evolving customer requirements with a strong stakeholder focus. Uphold our core values of safety, integrity, and responsibility. Collaborate in a supportive and agile team environment. Take ownership of both technology and your personal development. Your Background PhD or MSc in Power Systems, Electrical Machines and Drives, or Power Electronics Control. Several years of experience in HVDC or FACTS technologies. Strong knowledge of MMC topologies and HVDC control systems. Experience in small-signal stability analysis and transient simulations. Skilled in simulation tools: MATLAB, PSCAD/EMTDC, EMTP-RV, and ideally Modelica, RTDS, Python, C/C++. Open-minded, solution-oriented, and collaborative with strong organizational skills. Proficiency in English is required What we offer Collective agreement Flexible working time Health care and wellness allowance Fantastic career possibilities within Hitachi Energy both within Sweden and globally Mentor to support you throughout onboard phase Various trainings and education supporting employee development​ Diversified company with over 70+ nationalities working in Sweden Supplementary compensation for parental leave Employee Benefit Portal with thousands of discounts and perks More about us Are you ready for an exciting new challenge? Does the above description sound like you and would you like to live and work in the birthplace of the HVDC and 3-phase power systems? Welcome to apply for this position! Recruiting Manager, Liselotte Vikenadler, Liselotte.vikenadler@hitachienergy.com will answer your questions about the position. All other questions can be directed to Talent Acquisition Partner Malin Johansson, malin.johansson@hitachienergy.com Union representatives: Sveriges Ingenjörer: Mikael Hjort, +46 107-38 29 86 Ledarna: Frank Hollstedt, +46 107-38 70 43 Unionen: Fredrik Holmgren, +46 107-38 21 85 Due to summer vacations, the screening and selection process will begin in mid-August. Thank you for your understanding and patience during this period.

The Electrical Valve Design department is a part of Hitachi Energy HVDC Products in Ludvika. We as a department are globally responsible for electrical design and requirements of semiconductors based HVDC and SVC valves. HVDC valves are used to convert AC to DC, and vice versa, and are essential for HVDC power transmissions. SVC valves are used in SVC systems, to support and stabilize AC systems. We also are responsible for designing digital optical instrument transducers. These are state of the art and compact current measuring instruments suited specifically for HVDC applications. These current measuring instruments are used in different parts of an HVDC system, such as measuring the valve current to protect it against overcurrents and earth faults. It is also used for measuring harmonics and filter supervision. The Electrical Valve Design department in Sweden consists of 38 employees including the managers. We also have electrical design departments in India and China, who we work in close collaboration with. Our department is not only responsible for tenders and project deliveries, but also for productification of new valve solutions, life cycle management and provide technical support in upgrades & service projects. This position is based in Ludvika, Sweden, and we are eagerly looking forward to expanding our team with someone that has a burning passion for technology and a sustainable future. Does this sound like you? Don’t delay – apply today! Your responsibilities: Perform semiconductor valve calculations including electrical, thermal and losses. Perform semiconductor valve simulations including circuit and FEM simulations. Specify testing requirements to ensure that tests are performed according to standards. Specify control and protection requirements on the valve. Being responsible for customer trainings. Living Hitachi Energy core values of safety and integrity, which means taking responsibility for your own actions while caring for your colleagues and the business. Your background: You have either a Bachelor of Science or a Master of Science in Power Engineering, Electronics, Physics or equivalent. Minimum of 5 years of work experience in HVDC or GPQS. You have good knowledge of engineering tools, for instance; Matlab, Mathcad, PSCAD, LTSpice, COMSOL or ANSYS. Experiences aside, the most important aspect is your positive attitude and passion for electrical & electronics engineering. We are looking for you, who are self-motivated and curious, and thrive in a role where you can deepen your knowledge Fluency in English is required, knowledge of Swedish is highly valued. You are team player who is not hesitant in communicating with people and a natural problem solver who enjoys challenges and are open-minded and straightforward in your communication. What we offer Collective agreement Flexible working time Health care and wellness allowance Fantastic career possibilities within Hitachi Energy both within Sweden and globally Mentor to support you throughout onboard phase Various trainings and education supporting employee development​ Diversified company with over 70+ nationalities working in Sweden Supplementary compensation for parental leave Employee Benefit Portal with thousands of discounts and perks More benefits could be connected to this specific role More about us Are you ready for an exciting new challenge? Does the above description sound like you? Last day to apply is 2024-11-30. Applications will be reviewed on an ongoing basis, so don’t delay – apply today! More information: Recruiting Manager, Misely Ruiz, misely.ruiz@hitachienergy.com will answer your questions about the position. For Sweden, Union representatives – Sveriges Ingenjörer: Mikael Hjort, +46 107-38 29 86; Ledarna: Frank Hollstedt, +46 107-38 70 43; Unionen: Fredrik Holmgren, +46 107-38 21 85. All other questions can be directed to Talent Acquisition Partner, Malin Johansson, malin.johansson@hitachienergy.com.