Harmonic Analysis Engineer for HVDC

Hitachi Vantara Corporation; Ludvika kommun; On-site; SEK 650,000 - 900,000; Full time

Benefits offered by this job

Flexible working time

Healthcare allowance

Career development

Mentor program

Training & education

Diverse team

Parental leave support

Discount portal

Job summary

Hitachi Energy is seeking two Project Engineers for the Harmonic Analysis team within HVDC. You will work on harmonic analysis, power quality, and electrical system studies for HVDC converter stations, collaborating across projects to ensure successful integration with electrical networks and offshore wind farms.

The role welcomes both entry-level and experienced candidates, emphasizing an engineering mindset and a willingness to learn.

Qualifications

• Bachelor's or Master's degree in Electrical Engineering, Electronic Engineering, or Engineering Physics.
• General understanding of electrical power systems and related equipment.
• Ability to model and analyze electrical circuits in the frequency domain, both by hand and using computer-based tools.
• Understanding of how multi-phase systems can be analyzed using modes.
• A practical approach to problem solving, recognizing data uncertainty and the need to discuss with customers for effective solutions.
• Strong communication and technical report writing skills.
• Programming experience in MATLAB is highly beneficial. Experience with Python is also valued.
• Experience with EMT tools such as PSCAD is advantageous.
• Fluency in written and spoken English.

Responsibilities

• Perform harmonic studies below 15 kHz for HVDC converter stations and support commissioning measurements.
• Evaluate if harmonic power quality requirements can be met.
• Analyze small-signal stability in the harmonic range when connecting HVDC stations to networks or wind farms.
• Propose active or passive mitigation measures like filters or dampers when needed.
• Calculate harmonic stresses in HVDC equipment and assess mitigation or redesign needs.
• Develop data analysis tools in Excel, MATLAB, or Python for large datasets.
• Present findings to colleagues, customers, and suppliers and contribute to discussions.
• Write clear technical reports describing study work and results.
• Participate in conferences and standardization work groups within the engineering community.
• Adhere to Hitachi Energy values of safety and integrity.

Skills

Power systems

Frequency-domain analysis

Multi-phase analysis

Problem solving

Technical report writing

English communication

MATLAB

Python

Education

Bachelor's or Master's degree (Electrical/Electronic Engineering or Engineering Physics)

Tools

PSCAD

Job description

Job Description

HVDC (High Voltage Direct Current) is a product group within Hitachi Energy that develops, manufactures, and sells DC transmission systems on a global market. HVDC technology is used to transmit electricity over long distances and to connect offshore wind farms to the grid.

We are looking for two project engineers to join the Harmonic Analysis team within HVDC. We welcome applications from both entry-level and experienced candidates. If this opportunity interests you, we encourage you to apply even if you do not meet every requirement.

In this role, you will work with harmonic analysis, power quality, and electrical system studies for HVDC converter stations. You will collaborate across projects and contribute to the successful integration of HVDC stations with electrical networks and offshore wind farms.

The most important qualities for this role are your engineering mindset and your willingness to learn and explore new areas.

How you'll make an impact

• Collaborate in project teams responsible for the electrical system design of HVDC converter stations. Perform harmonic studies below 15 kHz and support compliance measurements during commissioning.
• Evaluate whether specified harmonic power quality requirements can be fulfilled.
• Analyze small‑signal stability in the harmonic range when connecting an HVDC station to a network or wind farm.
• Propose active or passive mitigation measures, such as harmonic filters or harmonic dampers, when needed.
• Calculate harmonic stresses in HVDC station main circuit equipment and assess whether mitigation measures or redesigns are required.
• Develop tools in Excel, MATLAB, or Python to efficiently analyze and process large amounts of data.
• Participate in technical discussions and negotiations with colleagues, customers, and suppliers. Present your work and contribute to discussions on challenges and the path forward.
• Write clear and professional technical reports describing complex study work and results.
• Participate in conferences and standardization work groups within the international engineering community.
• Live Hitachi Energy's values of safety and integrity by taking responsibility for your actions while caring for your colleagues and the business.

Your background

• Bachelor's or Master's degree in Electrical Engineering, Electronic Engineering, or Engineering Physics.
• General understanding of electrical power systems and related equipment.
• Ability to model and analyze electrical circuits in the frequency domain, both by hand and using computer‑based tools.
• Understanding of how multi‑phase systems can be analyzed using modes.
• A practical approach to problem solving, understanding that models and calculations are estimates, that input data can be uncertain, and that technical requirements may need to be challenged and discussed with customers to find effective solutions.
• Strong communication and technical report writing skills.
• Programming experience in MATLAB is highly beneficial. Experience with Python is also valued.
• Experience with EMT tools such as PSCAD is advantageous.
• Fluency in written and spoken English.

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