Job Description: Technical Lead – Central Inverter Development

Location: India -Bangalore

Experience: 12–15 years

Domain: Power Electronics –Solar / BESS / Grid-tied Systems

Role Summary

Lead the design, development, and industrialization of high-power central inverters (250 kW – multi-MW range) for solar PV and energy storage applications.

Own system architecture, drive cross-functional execution, and ensure compliance with grid codes and reliability targets.

Key Responsibilities1.

System Architecture & Design

Define end-to-end architecture for central inverter systems: Topology selection (NPC, ANPC, T-Type, Modular Multilevel)Power stage design (IGBT / SiC based)Define:DC bus structure (1000V / 1500V systems)Thermal management strategy (air / liquid cooling)Efficiency optimization (>98.5%)2.

Power Electronics Development

Lead design of:DC-AC inverter stageLCL filters and EMI/EMC compliance

Gate driver and protection circuits

Evaluate semiconductor technologies:IGBT vs SiC trade-offs (cost vs efficiency vs switching frequency)3.

Control & Firmware

Define and guide control algorithms: Grid synchronization (PLL)Current control loops (dq control)MPPT (if integrated)Grid support functionalities: Reactive power controlLVRT / HVRT compliance

Interface with DSP/FPGA teams4.

Grid Compliance & Standards

Ensure compliance with:IEC standards (IEC 62109, IEC 61727, IEC 61000)IEEE 1547Indian grid codes (CEA regulations)Lead certification efforts (CE, UL if export-focused)5.

Thermal & Mechanical Integration

Work with mechanical teams for:



Heat sink designCFD validationIP rating (IP54/IP65 outdoor systems)6.

Reliability & Safety

Define: Derating strategies

Lifetime calculations (mission profile-based)Conduct:FMEA / DFMEAHALT / HASS testing

Ensure functional safety alignment (where applicable)7.

Team Leadership

Lead a cross-functional team: Power electronics

Controls

Mechanical

Validation

Mentor engineers and drive design reviews8.

Vendor & Cost Optimization

Work with vendors for: Magnetics, semiconductors, capacitors

Drive: Cost reduction (?/kW)Design-to-cost initiatives

Required ./BTech in Electrical / Power ElectronicsMTech / PhD preferred

Experience10+ years in power electronics design

Strong experience in: Central / string inverters ORHigh-power converters (≥100 kW)Technical Skills

Must-Have

High-power converter design (≥100 kW to MW scale)Topologies: NPC / ANPC / T-type

Simulation tools: PLECS, MATLAB/Simulink

Magnetics & filter design

Thermal design basics

Good-to-Have

SiC-based converter design

Grid-forming inverter conceptsBESS integration knowledge

Communication protocols (Modbus, CAN, IEC 61850)Key Performance Indicators (KPIs)Efficiency (%)Power density (kW/m³)Cost per kW (?/kW)Field failure rate (FIT)Time-to-marketBehavioural Competencies

Robust ownership mindset

System-level thinking

Ability to resolve ambiguity

Stakeholder management

Typical Companies Hiring for This Role (India)Sungrow

Hitachi Energy

Delta Electronics

Tata Power Solar

Waaree Energies

Medha DrivesGE Power Control

📌 Tech Lead - Central Inverter R&D (India)
🏢 Larsen and Toubro
📍 India