Southern States LLC ยท 2 months ago
Control System-Embedded Software Engineer - PSSD
Hampton, GA
Full-time
Onsite
Senior Level
5+ years expSouthern States LLC is seeking a Control Systems-Embedded Software Engineer to join their development team focusing on multilevel converter technologies for renewable energy applications. The role involves designing and implementing advanced control strategies to enhance grid stability and collaborating with various engineering teams to integrate controls into high-voltage systems.
Electrical DistributionElectronicsManufacturing
Responsibilities
Develop and implement control algorithms for voltage regulation, reactive power compensation, power quality, and system stability in multilevel converter STATCOMs, utilizing techniques such as PI controllers, model predictive control (MPC), or adaptive control methods
Validate control performance under various grid conditions using software tools like MATLAB/Simulink, PSCAD/EMTDC, or OPAL-RT, simulating dynamic responses, transient behaviors, and fault handling
Analyze system-level interactions between control strategies and multilevel converter topologies (e.g., modular multilevel converters or cascaded H-bridge), optimizing for reduced oscillations, improved response time, and harmonic mitigation
Collaborate with power electronics engineers, firmware developers, and test teams to integrate control software into prototypes, ensuring seamless hardware-software compatibility and real-time operation
Collaborate with power electronics and other control systems engineers to translate hardware requirements into firmware, supporting integration testing and hardware-in-the-loop (HIL) simulations
Conduct stability analysis, including small-signal modeling and eigenvalue assessments, to ensure robust performance during disturbances like faults or load changes
Design and tune protection mechanisms, such as overvoltage/undervoltage detection and fault ride-through capabilities, to comply with grid codes and standards (e.g., IEEE 519 for harmonics)
Perform root cause analysis on simulation discrepancies or control failures, iterating designs to enhance reliability and efficiency
Prepare technical documentation, including control flow diagrams, simulation reports, and performance metrics, for internal reviews and regulatory submissions
Manage hardware component obsolescence issues of existing control platforms
Program microcontrollers and DSPs to implement real-time control algorithms, system monitoring, and data processing for multilevel converter STATCOM operations
Develop and integrate communication protocols such as Modbus, DNP3, IEC 61850, or Ethernet-based standards to facilitate seamless interaction with supervisory control and data acquisition (SCADA) systems and grid interfaces
Design and optimize embedded software for low-latency execution, resource efficiency, and robustness in high-power environments, using languages like C/C++ or assembly
Conduct code reviews, debugging, and performance profiling to identify and resolve issues in real-time control loops and interrupt handling
Develop and maintain software documentation, including code comments, architecture diagrams, and user manuals
Support internal audits and enforce adherence to documented policies and procedures to uphold quality of designs
Stay current with advancements in control technologies for power system, embedded technologies, real-time operating systems (RTOS), and cybersecurity practices for power system applications
Qualification
Required
Bachelor's degree in electrical engineering or a related field
At least 5 years of professional experience in control systems design, preferably in power electronic converter control
Proven expertise in developing control algorithms for voltage and reactive power management, with hands-on experience in PI controllers, MPC, or similar methods
Proven expertise in programming microcontrollers (e.g., ARM Cortex-M) and DSPs (e.g., TMS320 series) for real-time applications
Strong proficiency in simulation tools such as MATLAB/Simulink, PSCAD, or equivalent for modeling dynamic systems and fault scenarios
Solid understanding of power system dynamics, stability analysis, and multilevel converter operations in high-voltage environments
Solid understanding of real-time control principles, interrupt service routines, and hardware-software interfacing in high-voltage systems
Experience with real-time control implementation, including DSPs or microcontrollers, and knowledge of communication protocols like DNP3
Excellent analytical and problem-solving skills, with the ability to work collaboratively in multidisciplinary teams
Familiarity with debugging tools (e.g., JTAG, oscilloscopes) and version control systems (e.g., Git)
Strong communication skills for technical documentation and team collaboration
Preferred
Master's or Ph.D. in Electrical Engineering with a focus on Control Systems or Power Systems
7+ years of experience, including work on multilevel converter-based systems or grid-connected inverters in renewable energy applications
Familiarity with advanced simulation environments (e.g., hardware-in-the-loop testing) and optimization techniques for control parameters
Experience with embedded programming in C/C++ for control firmware development
Knowledge of machine learning applications in predictive control or fault detection for power systems
Advanced knowledge of cybersecurity for embedded devices, such as secure boot and encryption, in compliance with standards like IEC 62443
Experience with model-based design tools (e.g., MATLAB/Simulink Embedded Coder) for automatic code generation and HIL testing
Company
Southern States LLC
For over 100 years, Southern States has been a provider of essential products and services to electric utilities in the U.S.
201-500 employees
H1B Sponsorship
Southern States LLC has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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2025 (2)
2024 (1)
2023 (1)
2020 (1)
Funding
Current Stage
Growth StageLeadership Team
Raj A.
President & CEO
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