PRO20 Series
DC Bidirectional Source-Load Simulator
Bidirectional DC Source-Load Simulator with Advanced Emulation Functionality
PRO20 DC Bidirectional Source-Load Simulator is built on ActionPower's featured power-module based cabinet system highlighted by flexible scalability and deployment options along with wide-power coverage from 50kW to 6 MW for versatile testing applications and emulation use cases. The ultimate 2250 VDC high-voltage rating of PRO20 aligns with the latest specifications required for modern PV and BESS emulation testing where typically a high-power grid simulator is coupled for end-to-end grid code compliance testing against utility-scale converters.
PRO20 DC Source-Load Simulator supports solar array emulation, battery emulation as well as optional feature of battery cycling software integration for versatile testing purposes and application. When operating in load mode, PRO20 DC can recover the absorbed energy with an efficiency of over 93.5% for saving energy cost for extensive high-power testing.
Highlighted Features- Modular scalable construction based on 50kW/100kW power modules within cabinet
- Inter-cabinet master-slave parallel connection for reaching 6MW
- Compact footprint and high power density of 256kW per m3 & 536kW per m2
- Regenerative bidirectional source-load operation capability with >93.5% efficiency
- 2250VDC maximum output voltage for matching modern PV & BESS specifications
- Low ripple feature of below 1V supported by advanced hardware and algorithm
- Battery or solar array emulation functions, battery cycling testing application available
Model Options
Find the right specification for your requirements
| Model | Power (kVA) | Voltage Range(V) | Max. Current (A) | Dimension (mm) | Weight (kg) |
|---|---|---|---|---|---|
| PRO20-D05-2201 | ±50 | 20–2250 | ±100 | 800x1000x1950 | 465 |
| PRO20-D10-2202 | ±100 | 20–2250 | ±200 | 800x1000x1950 | 465 |
| PRO20-D15-2203 | ±150 | 20–2250 | ±300 | 800x1000x1950 | 590 |
| PRO20-D20-2204 | ±200 | 20–2250 | ±400 | 800x1000x1950 | 590 |
| PRO20-D25-2205 | ±250 | 20–2250 | ±500 | 800x1000x1950 | 715 |
| PRO20-D30-2206 | ±300 | 20–2250 | ±600 | 800x1000x1950 | 715 |
| PRO20-D35-2207 | ±350 | 20–2250 | ±700 | 800x1000x1950 | 840 |
| PRO20-D40-2208 | ±400 | 20–2250 | ±800 | 800x1000x1950 | 840 |
| PRO20-D45-2209 | ±450 | 20–2250 | ±900 | 1400x1000x1950 | 1245 |
| PRO20-D50-2210 | ±500 | 20–2250 | ±1000 | 1400x1000x1950 | 1245 |
| PRO20-D55-2211 | ±550 | 20–2250 | ±1100 | 1400x1000x1950 | 1370 |
| PRO20-D60-2212 | ±600 | 20–2250 | ±1200 | 1400x1000x1950 | 1370 |
| PRO20-D65-2213 | ±650 | 20–2250 | ±1300 | 1400x1000x1950 | 1495 |
| PRO20-D70-2214 | ±700 | 20–2250 | ±1400 | 1400x1000x1950 | 495 |
| PRO20-D75-2215 | ±750 | 20–2250 | ±1500 | 1400x1000x1950 | 1620 |
| PRO20-D80-2216 | ±800 | 20–2250 | ±1600 | 1400x1000x1950 | 1620 |
Highlighted Features
PRO20 DC Source-Load Simulator features versatile power emulation capability as well as regenerative load functioning for high-power, high-voltage testing applications against modern PV inverters, BESS and EV traction power system.
Source-Load Integrated Platform with Regenerative Load Capability
PRO20 DC Source-Load Simulator is in nature a bidirectional programmable DC power supply that automatically sets its operation mode among the sourcing and load power with zero latency or overshoot. When applied for DC load simulation such as for dynamics testing simulating AI server in HVDC testing scenarios or for high-voltage BESS testing applications, NEXUS feeds energy back to utility grid with a 93.5% energy efficiency for saving your energy testing cost.
Modular Scalability from 5kW to 6MW with 50kW/100kW Power Module as Building Blocks
PRO20 DC source-load simulator is architected based on 50 kW power modules and scales up to 750 kW from a single cabinet from only a compact footprint of 1400*1000 mm, equivalent to a high power density of 563 kW per m2. Inter-cabinet scalability allows 8 units of cabinet to be connected in parallel as master-slave system with a maximum power of 6 MW.
User may reconstruct the testing platform built be PRO20 DC into either various sub systems, or to upgrade their existing ones by integrating new power modules or parallelling additional cabinets, without compromising the functioning of existing system or the essentialness of total replacement.
The modular system features redundancy capability for eliminating downtime by isolating the fault units and continues operating without compromising overall functionality or stability.
Advanced Battery Simulation and Multi-Order RC Model Reconfiguration
With bidirectional power and battery emulation capability, PRO20 DC Source-Load Simulator replicates the charging and discharging behaviours with built-in operation profiles and chemistry characteristic models covering lithium manganese oxide (LMO), lithium iron phosphate (LiFePO4), ternary lithium, and lead-acid, along with fully opens up 1st-order, 2nd-order, and even 3rd-order RC battery model reconfiguration capabilities.
User-defined settings are available with customizable series/parallel configurations, initial SOC, internal resistance, cell capacity adjustments, and CSV format importing, supported by an ultra-fast command update rate of 200 µs. High-power aligns with the features of energy storage battery for end-to-end grid code compliance testing applications.
SAS (Solar Array Simulator) Operation Mode with Versatile Environmental Reconfiguration
PRO20 DC Source-Load Simulator supports 4,096 points high-resolution I-V curve plotting for MPPT testing against PV inverter following international PV protocol models such as EN 50530 and Sandia. Quick test setup for static and dynamic MPPT tracking is further supported by additional injection of unideal external natural conditions such as cloudy weather and partial shading.
The high voltage rating of 2250VDC aligns with the feature of modern 2kV solar farms for high-power PV inverter testing applications.
Utility-Scale Battery Cycling Test Application
High dynamics and ultra-fast-response of PRO20 DC source-load simulator that achieves microsecond recovery for full-load switching provide the functionality foundation for battery cycling and life cycle test against utility-scale energy storage battery and EV battery pack.
The system features 1ms dynamic response time, low ripple of 1 V and precision of ±(0.05% setting + 0.05% F.S.), to match the dynamic operation and power profile, charging and current draw during both ESS and EV battery's functioning.
Applications of PRO20 Regenerative DC Source-Load Simulatory
Next-generation modular-architectured DC Power Supply
NEW ENERGY VEHICLE
NEW ENERGY VEHICLE
The PRO20 provides bidirectional DC testing for on-board chargers (OBC), DC/DC converters, traction batteries, and EVSE interoperability, supporting both sourcing and regenerative operation
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SOLAR ENERGY
SOLAR ENERGY
The PRO20 simulates photovoltaic I-V characteristics, validates inverter MPPT algorithms, and supports performance and efficiency testing of renewable energy systems
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ENERGY STORAGE SYSTEM
ENERGY STORAGE SYSTEM
The PRO20 enables accurate charge/discharge simulation for battery packs and energy storage systems, verifying BMS protection, control strategies, and system efficiency
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Specifications
The following specifications are subject to change without prior notice. Unless otherwise specified, all specifications are measured at the product's maximum ratings.
AC INPUT
| Voltage Range (V) | 304 VAC ~ 456 VAC |
|---|---|
| Frequency (Hz) | 47 Hz ~ 63 Hz |
| Wiring Code | 3ph+PE |
| Efficiency | >93.5% |
| Power Factor | ≥0.99 |
CURRENT PARAMETERS
| Programming Accuracy | ±(0.05% Setting + 0.05% F.S.) |
|---|---|
| Programming Resolution | ±0.01 A |
| Readback Accuracy | ±(0.05% Reading + 0.05% F.S.) |
| Readback Resolution | ±0.001 A |
| Source Regulation | ±0.1% F.S. |
| Load Regulation | ±0.1% F.S. |
| Rise Time (10~90% F.S.) | ≤1 ms |
| Transition Time (-90~90% F.S.) | ≤2 ms |
POWER PARAMETERS
| Programming Accuracy | ±(0.1% Setting + 0.1% F.S.) |
|---|---|
| Programming Resolution | ±1 W |
| Readback Accuracy | ±(0.1% Reading + 0.1% F.S.) |
| Readback Resolution | ±1 W |
RESISTANCE PARAMETERS
| Range | Refer to User Manual |
|---|---|
| Programming Accuracy | ±(0.1% Setting + 0.2% F.S.) @ ≥3% of rated current |
| Programming Resolution | 0.01 Ω |
| Readback Accuracy | ±(0.1% Setting + 0.2% F.S.) @ ≥3% of rated current |
| Readback Resolution | 0.01 Ω |
GENERAL PROGRAMMABILITY
| Programming Modes | List, Wave, Step, Advanced |
|---|---|
| Programming Steps | 200 steps |
| Loop Count Range | 0 ~ 9,999,999 times |
| Time Range | 0 ms ~ 999 s |
| Minimum Time Step | 100 μs |
| Edit Functions | Add, Delete, Import, Export |
| Execution Modes | Load, End, Trigger |
INTERFACE
| Communication Interfaces | Standard: USB, LAN; Optional: RS485, CAN |
|---|---|
| Multi-Function Interface | "Anyport" (refer to User Manual for detailed definition) |
ENVIRONMENT
| Operating Temperature | -10 ~ 50 °C (power derating above 35 °C) |
|---|---|
| Storage Temperature | -20 ~ 70 °C |
| Humidity | ≤80% (non-condensing) |
| Altitude | ≤2000 m |
VOLTAGE PARAMETERS
| Programming Accuracy | ±(0.05% Setting + 0.05% F.S.) |
|---|---|
| Programming Resolution | ±0.1 V |
| Readback Accuracy | ±(0.05% Reading + 0.05% F.S.) |
| Readback Resolution | ±0.01 V |
| Source Regulation | ±0.05% F.S. @ 10% change |
| Load Regulation | ±0.05% F.S. |
| Remote Sense Compensation | Max. Voltage and 2% F.S. ±1 V |
| Rise Time (10~90% F.S.) | ≤1 ms |
| Dynamic Overshoot | ≤±5% F.S. |
| Recovery Time |
≤2 ms to settle within ±0.75% F.S. after a 50% → 100% or
100% → 50% load step (700 V / 1500 V); ≤1 ms (2250 V) |
| Voltage Ripple (RMS) | 1 V |
| Slew Rate Range (No Load) |
700 V: 300 V/ms 1500 V: 600 V/ms 2250 V: 1000 V/ms |
| Slew Rate Range (Full Load) |
700 V: 150 V/ms 1500 V: 300 V/ms 2250 V: 500 V/ms |
MEASUREMENT PARAMETERS
| Voltage Accuracy | ±(0.05% Setting + 0.05% F.S.) |
|---|---|
| Voltage Resolution (V) | 0.01 |
| Current Accuracy | ±(0.05% Setting + 0.05% F.S.) |
| Current Resolution (A) | 0.01 |
| Power Accuracy | ±(0.1% Reading + 0.1% F.S.) |
| Power Resolution (kW) | 0.01 |
BATTERY SIMULATION
| Battery Types | Supports simulation of lithium manganate, lithium cobalt oxide, lithium iron phosphate, nickel-metal hydride, ternary lithium, lithium titanate, lead-acid, and other battery chemistries; customizable battery types with open 1st-, 2nd-, and 3rd-order RC models |
|---|---|
| Configurable Parameters | Series cell count, parallel cell count, initial SOC, initial temperature, internal resistance, cell capacity, etc. |
| Interface | Supports CSV import for customized battery models |
| Real-Time Performance | 200 μs command update rate |
I-V CURVE SIMULATION
| Open-Circuit Voltage Setting Range | Full voltage range configurable |
|---|---|
| Short-Circuit Current Setting Range | 0 A ~ Ie |
| Fill Factor Simulation Range | 0.3 ~ 0.95 |
| PV Module Type Selection | c-Si, Thin-film, Custom |
| I-V Curve Update Rate | Typical 1 ms, with online curve switching capability |
| I-V Curve Standards | EN50530, Sandia, Simple |
| I-V Curve Functions | Static curve, curve scanning, static sequence, static MPPT, dynamic MPPT, weather simulation, shading simulation, curve programming, custom curves |
| Curve Configuration |
1) Customizable through parameters such as Voc, Isc, FF, and Pm 2) Dynamic operating mode considers environmental effects such as temperature and irradiance and continuously outputs I-V curves under varying environmental conditions 3) Built-in EN50530 / Sandia dynamic I-V curve test procedures |
MISCELLANEOUS
| Protection Functions | Input over-voltage / under-voltage / over-frequency / under-frequency / phase-loss protection; output over-voltage / over-current / over-power protection; internal over-temperature protection |
|---|---|
| Control & Display | Local touchscreen control and remote PC control; displays voltage, current, power, and operating trend curves |
| Cooling Method | Forced air cooling |
| Insulation (Negative to PE) | 3400 VDC |
| Insulation (Positive to PE) | 3400 VDC |
| Insulation (Input to PE) | 3100 VDC |
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