Microgrid System Studies & Validation Engineer - Morrisville​/Raleigh, NC

Who We Are

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 end-to-end power system studies, protection engineering, grid code compliance, quantitative reliability (RAM) modeling, and closed-loop validation for utility-grade and hyperscale microgrid projects. This role ensures microgrid solutions are safe, selective, stable, compliant, and demonstrably robust prior to field deployment by combining RMS/EMT studies, protection coordination, availability analysis, and SIL/HIL validation across grid-connected and islanded operating modes.

Core Scope

• RMS and EMT power system studies for microgrids and inverter-dominated systems
• Utility interconnection / grid code compliance assessment and formal reporting
• Protection modeling, short-circuit analysis, and coordination for grid-connected and islanded operation
• Quantitative Reliability, Availability & Maintainability (RAM) modeling to support architecture trade-offs and contractual SLAs
• System-level validation using SIL/HIL (e.g., RTDS) including abnormal event and fault response verification

Power System Studies & Grid Code Compliance

• Perform RMS and EMT-level studies using PSCAD, PSS®E, and/or DIgSILENT Power Factory (load flow, short-circuit, transient stability, frequency response, voltage performance)
• Evaluate inverter-dominated dynamics including weak-grid operation, SCR sensitivity, control interactions, and fault recovery behavior
• Assess islanding, black-start, resynchronization, and large load-step response for microgrid operational readiness
• Develop/validate detailed models for PCS, BESS, plant controllers, and microgrid controls; manage model assumptions and versioning
• Ensure compliance with IEEE 1547 and utility/region-specific interconnection requirements; respond to technical clarifications from utilities and EPCs
• Prepare formal study packages and compliance reports; present results and mitigations to customers, utilities, and internal design…