Multi-Source Power Converter Integration
Budget: ₹12,500 – ₹37,500 INR
I am building a low-power (below 1 kW) drive system that blends a fuel cell, solar panel string and a battery into one regulated DC bus. This bus will feed an ESC that drives a BLDC motor, with the motor speed set by a simple potentiometer on the throttle input.
My priority is long drive time (max durability), so the converter must seamlessly share power and manage energy among the three sources under these modes: fuel-cell-only, fuel cell + solar, fuel cell + battery, fuel cell + solar + battery, surplus-power battery charging, and regenerative recovery charging. I want the transitions to feel transparent to the load while always keeping the DC bus within the motor-safe limits.
What I need from you
• Complete multi-input DC-DC topology selection and sizing for the stated power level
• Control strategy (hardware- or firmware-based) that allocates current from each source according to real-time availability and the durability goal
• Working hardware Prototype
• Schematic, bill of materials and magnetic component specs
• Firmware or Simulink/MATLAB control blocks (if you prefer digital control) for the converter and ESC interface
• Test plan that shows how you will validate each operating mode on the bench, including regenerative and surplus-charging cases
• Brief user guide so I can reproduce the results and tune parameters later
Acceptance criteria
1. Regulated DC output stays within ±3 % of its setpoint across all modes.
2. Source currents follow the commanded sharing ratios without overshoot that could harm the fuel cell.
3. BLDC runs smoothly from zero to full throttle using the potentiometer, with no audible cogging or dropout.
4. Battery charge/discharge currents respect standard Li-ion safety limits under both excess-power and regen conditions.
I’m happy to answer detailed questions on the existing components and test bench so you can final-size the converter and control loop. Let’s make this small hybrid powertrain both robust and efficient.
My priority is long drive time (max durability), so the converter must seamlessly share power and manage energy among the three sources under these modes: fuel-cell-only, fuel cell + solar, fuel cell + battery, fuel cell + solar + battery, surplus-power battery charging, and regenerative recovery charging. I want the transitions to feel transparent to the load while always keeping the DC bus within the motor-safe limits.
What I need from you
• Complete multi-input DC-DC topology selection and sizing for the stated power level
• Control strategy (hardware- or firmware-based) that allocates current from each source according to real-time availability and the durability goal
• Working hardware Prototype
• Schematic, bill of materials and magnetic component specs
• Firmware or Simulink/MATLAB control blocks (if you prefer digital control) for the converter and ESC interface
• Test plan that shows how you will validate each operating mode on the bench, including regenerative and surplus-charging cases
• Brief user guide so I can reproduce the results and tune parameters later
Acceptance criteria
1. Regulated DC output stays within ±3 % of its setpoint across all modes.
2. Source currents follow the commanded sharing ratios without overshoot that could harm the fuel cell.
3. BLDC runs smoothly from zero to full throttle using the potentiometer, with no audible cogging or dropout.
4. Battery charge/discharge currents respect standard Li-ion safety limits under both excess-power and regen conditions.
I’m happy to answer detailed questions on the existing components and test bench so you can final-size the converter and control loop. Let’s make this small hybrid powertrain both robust and efficient.