Microgrid Control Systems Design Engineer - Morrisville​/Raleigh, NC

Delta, founded in 1971, is a global leader in switching power supplies and thermal management products with a thriving portfolio of smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecom power, data center infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities. As a world-class corporate citizen guided by its mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” Delta leverages its core competence in high-efficiency power electronics and its ESG-embedded business model to address key environmental issues, such as climate change.

Delta serves customers through its sales offices, R&D centers and manufacturing facilities spread over close to 200 locations across five continents. Delta has 158 sales offices, 72 R&D centers and 48 manufacturing facilities worldwide.

Throughout its history, Delta has received various global awards and recognition for its business achievements, innovative technologies, and dedication to ESG. Since 2011, Delta has been listed on the DJSI World Index of Dow Jones Sustainability™ Indices for 11 consecutive years. In 2021, Delta was also recognized by CDP with leadership level ratings for its substantial contribution to climate change and water security issues and named Supplier Engagement Leader for its continuous development of a sustainable value chain.

At Delta, we’re leading the energy transition with innovative solutions in solar inverters, energy storage systems, and EV charging infrastructure. Our technologies are helping utilities, businesses, and communities decarbonize and build resilient, intelligent energy ecosystems. Join us in creating a cleaner, smarter energy future.

Role Summary

Responsible for the end-to-end design of supervisory (EMS), real-time control, and protection-coordinated control strategies for utility-grade and hyperscale microgrids. This role translates business, reliability, resilience, and compliance objectives into deployable control functions, while ensuring stable dynamic performance, clear command authority boundaries, and safe operation aligned with the site protection philosophy across grid-connected and islanded modes.

Primary Outcomes

• Stable grid-connected, islanded, transition, resynchronization, and black-start operation with protection-aware control limits
• Clear authority/arbitration model across EMS, real-time controller, SCADA/operator commands, unit controllers, and protection relays
• Demonstrable compliance with IEEE 1547, utility interconnection requirements, and site-specific operating/protection philosophy
• Traceable validation evidence via SIL/HIL (e.g., RTDS), FAT/SAT, commissioning, and utility/customer witness testing

EMS Optimization & Supervisory Control Design

• Design EMS optimization algorithms (economic dispatch, reserve management, resilience planning, emissions objectives, and degradation-aware operation)
• Implement day-ahead, intraday, and rolling-horizon optimization with robust fallback strategies and operator override handling
• Translate EMS schedules and setpoints into supervisory control intents that respect real-time stability, ramp limits, and protection constraints
• Define EMS constraints and feasibility checks (asset limits, network limits, N-1/contingency policies where applicable) and document assumptions
• Analyze operational performance, tune objectives/constraints, and drive continuous improvement of optimization outcomes

Real-Time Control Design & Dynamic Performance

• Design and implement real-time control algorithms for grid-connected, islanded, transition, resynchronization, and…