Microgrid Controller Development Firmware Engineer

Who we are

Delta, founded in 1971, is a global provider of power and thermal management solutions. Its mission statement, "To provide innovative, clean and energy-efficient solutions for a better tomorrow," focuses on addressing key environmental issues such as global climate change. As an energy-saving solutions provider with core competencies in power electronics and automation, Delta's business categories include Power Electronics, Mobility, Automation, and Infrastructure.

Have you got what it takes to succeed The following information should be read carefully by all candidates.

Role Summar

yOwn the design and in-house development of the real-time control software that runs on the Microgrid Controller (MGC). This role sits at the intersection of power-electronics control theory and deterministic embedded software, building the droop / grid-forming / grid-following, dispatch, mode-transition, and protection logic that coordinates PCS, BESS, PV, and genset assets. You will bring hands-on knowledge of industry-grade controllers and translate control laws into safe, bounded, real-time code verified on HIL

Key Responsibiliti

• esDevelop the MGC real-time control application on a deterministic RTOS/RT-Linux target — droop/VSG, PLL, GFM/GFL reference generation, P/Q dispatch, and bumpless mode transitions within = 1 ms loop
• s.Implement secondary control (P-f and Q-V droop, virtual inertia, SOC-aware allocation, ramp-rate limiting, black-start sequencing, resynchronization) at the 1–100 ms laye
• r.Build protection coordination logic (50/51, 27/59, 81/81R, anti-islanding, interlock state machine, GOOSE fast trip/block) with hardware trip paths executing in = 20 µ
• s.Design and tune power-electronics control loops interfacing to PCS/BESS unit controllers; validate stability, ride-through (LVRT/HVRT), and grid-fault behavio
• r.Configure and program industry controller
• s.Implement deterministic comms and middleware — IEC 61850 GOOSE/MMS/SV, Modbus TCP, DNP3, PTP (IEEE 1588), lock-free IPC (DDS / shared-memory SPSC queues), with no dynamic allocation on the RT pat
• h.Verify all functions on HIL (Typhoon HIL, OPAL-RT, RTDS, dSPACE) for grid-tied, islanded, black-start, failover, and fault-injection scenario
• s.Support certification and release evidence — UL 1741 SB, IEEE 1547, IEC 61850 conformance, IEC 62443 / NERC CIP — with clear design and test documentatio

n.
Required Qualificati

• onsB.S. or M.S. in Electrical Engineering, Power Electronics, Controls, or Computer Engineering (or equivalent experienc
• e).Strong grasp of power-electronics control — inverter current/voltage loops, PLL, droop, grid-forming/grid-following, and inverter-based-resource dynami
• cs.Hands-on real-time embedded software in C/C++ on RTOS (FreeRTOS/SafeRTOS/ThreadX) or PREEMPT_RT Linux, with bounded WCET, ISR, and deterministic scheduling discipli
• ne.Practical experience with industry controllers / IED
• s .Working knowledge of power-system protocols: IEC 61850 (GOOSE/MMS), Modbus, DNP3, and PTP time synchronizati
• on.Experience with model-based design and HIL (MATLAB/Simulink, PLECS, Typhoon HIL / OPAL-RT / RTDS) and test automation in Pyth
• on.Ability to read SLDs, I/O lists, protection settings, control narratives, and register maps; clear technical writing for specs, test plans, and release eviden

ce.
Preferred Experi

• enceMicrogrid / BESS plant controller, PPC, or grid-forming inverter control developm
• ent. xhyhwjd Familiarity with Azure DevOps, Git mono-repo workflows, CI/CD, and formal change control / release ga

tes.