Drone Testing Challenges? How the Wocen Power HB Series Simplifies Testing with an All-in-One Bidirectional DC Power Supply

As drones expand into industrial surveying, agricultural spraying, and logistics, reliable power system testing is becoming increasingly important.

From battery packs and BMS to motors, ESCs, and DC-DC converters, engineers need flexible testing solutions that deliver accurate results, reproduce dynamic operating conditions, and improve energy efficiency.

The Wocen Power HB Series Bidirectional Programmable DC Test Power Supply integrates power sourcing, regenerative loading, battery simulation, and PV simulation into one platform, simplifying testing across R&D, reliability validation, and production.

1. Four Major Challenges in Drone Testing

1. Complex test setups

Separate DC power supplies and electronic loads require additional equipment, wiring, and rack space, making it difficult to switch efficiently between different test scenarios.

2. High energy consumption

Traditional electronic loads dissipate absorbed energy as heat. Long-duration battery cycling and motor endurance tests increase electricity consumption and cooling costs.

3. Inaccurate dynamic simulation

Rapid current changes during takeoff, flight, and other operating conditions require fast dynamic response. Slow equipment may struggle to reproduce real-world electrical behavior accurately.

4. High-voltage safety risks

Battery and power electronics testing requires reliable protection against overvoltage, overcurrent, short circuits, and other abnormal conditions.

2. How the Wocen Power HB Series Addresses These Challenges

All-in-One Design with Energy Recovery

The HB Series combines a programmable DC source and regenerative electronic load in one unit. Energy absorbed during testing can be returned to the grid, with regenerative efficiency of up to 94.5%.

This integrated design helps reduce equipment footprint, energy consumption, and cooling requirements.

Fast Dynamic Response

With a dynamic response time of less than 1.5 ms, the HB Series supports programmable pulse, step, sine, and trapezoidal waveforms to reproduce changing electrical loads and evaluate the dynamic performance of drone power systems.

Integrated Battery and PV Simulation

The system supports five built-in battery models—LFP, NMC, LMO, LCO, and lead-acid—along with five customizable battery characteristic curves.

Its PV simulation capability also supports I-V curve simulation and MPPT performance testing, expanding its applications across battery systems and power conversion equipment.

Automated Testing and Configurable Protection

RS485/232, CAN 2.0B, and LAN interfaces support integration with automated test systems. Combined with Wocen PC software, the HB Series enables configurable test sequences, data recording, and test report generation.

Multiple protection functions and configurable thresholds help engineers conduct controlled fault testing and verify relevant safety functions.

3. Key Specifications at a Glance

• Power range: 5–30 kW
• Voltage options: 100 V, 330 V, 500 V, 750 V, 1000 V, 1500 V, and 2250 V
• Chassis: Standard 3U rack-mount design
• Voltage control accuracy: ≤0.05% F.S.
• Current accuracy: ≤0.1% F.S.
• Transient recovery time: <1.5 ms
• Maximum regenerative efficiency: 94.5%
• Expansion: Parallel connection of compatible units

With integrated source and load functions, simulation capabilities, and flexible system integration, the HB Series provides a versatile testing platform for drone batteries, motors, and power electronics.

Simplify Your Drone Testing

As drone technology evolves, testing systems must deliver greater flexibility, accuracy, and energy efficiency.

The Wocen Power HB Series helps engineers simplify test setups, reproduce dynamic operating conditions, and streamline testing workflows.

Looking for a suitable test power solution for your drone application?

Contact Wocen Power to discuss your testing requirements.

Wocen Power — Precision Power for Every Test.