Active Load Emulator
powered by LGE
“The Future of electric vehicle inverter testing”
Motor Emulation
- Motor emulation accuracy over 95%
- Fast respone for Torque / Rpm variation
- Resolver and encoder interface
- System protection for various fault conditions
- Mulit-phase (3,6,12) motor applicable (G2.0)
Battery Voltage Emulator
- Voltage source for evaluation inverter
- Supply voltage up to 1000 VDC (G2.0)
Low Investment and Operation Cost
- Compact design having small footprint
- Low initial Investment and maintenance
- High energy efficiency
Scalable Power Capacity (G2.0)
High power inverter test (Max 1.2 MW)
Generel:
| Categori | G1.0 | G2.0 |
| Dimensions (WxHxD) | 740 x 2170 x 1150mm | 1250 x 2000 x 1290mm |
| Weight | 1600kg | 2000kg |
| Power Capacity | individual channel 150kW, Parallel 300kW | individual channel 150kW, Parallel 300kW |
| Coolant | DI Water or compatible | DI Vatten eller compatibel |
| Coolant Flux | 45 l/min | 60 l/min |
| IP rating | IP20 | IP20 |
| Service Life | 10 years | 10 years |
Battery Emulator:
| Categori | G1.0 | G2.0 |
| Nominell Power | 60 kW | 80 kW |
| Output Voltage | 195 - 800 VDC | 195 - 1000 VDC |
| Nominell DC Current | 240 A | 240 A |
Motor Emulator:
| Categori | G1.0 | G2.0 |
| Numbers of Motors | individual two, parallel one motor | individual two, parallel one motor |
| Operation AC Frequency | 0 - 800 Hz | 0 - 1500 Hz |
| Individual AC Load Current | 400 Arms (Nom) 500 Arms (60s / 10 min stop) | 400 Arms (Nom) 500 Arms (60s / 10 min stop) |
| Parallel AC Load Current | 800 Arms (Nom) 1000 Arms (60s / 10 min stop) | 800 Arms (Nom) 1000 Arms (60s / 10 min stop) |
| Power Extension | N.A. | Up to 4 parallel connections |
| Back EMF | 0 - 480 Vrms | 0 - 612 Vrms |
| Torque direction | P,N | P,N |
| Numbers of Motor Poles | 24 poles | 24 poles |
| Resolver Lobes / Offset | 2 - 24 | 2 - 24 |
| Resolver Excitation Frequency | 10 - 20 kHz | 10 - 20 kHz |
| Encoder Typ / PPR | N.A. | Incremental (A, B, Z) / 0 - 512 PPR |
| Communication | CAN 2.0 A | CAN 2.0 A |
ALE G1.0
Ale G2.0
Overview
Scalability
Active Load Emulators are also very relevant in inverter test bench technology. An inverter is an electronic device that converts direct current (DC) to alternating current (AC) or changes the frequency, voltage or phase angle of the AC output. Such inverters are used in various applications, including renewable energy sources such as wind or solar energy, electric vehicles, industrial installations and more.
Load simulation: Inverters must be tested under various load conditions to ensure they can deliver expected performance and stability. Active Load Emulators enable simulation and testing of the output power produced by the inverter in a controlled environment.
Power hardware in the loop: Due to the regenerative feedback made possible by the use of this technology, energy requirements are significantly reduced.
Efficiency testing: The efficiency of an inverter can be measured by simulating different load conditions. An Active Load Emulator can load the inverter with variable loads and evaluate its efficiency over the entire operating range.
Dynamic testing: Inverters often need to handle rapid load changes, especially in applications such as electric vehicles. An Active Load Emulator can replicate such dynamic load changes and evaluate the inverter's ability to respond quickly.
Stability checks: Inverters must operate stably, without causing unwanted oscillations or instabilities in the system. Simulating different load conditions with Active Load Emulators can help verify inverter stability.
Development and validation: When developing new inverters or updating existing models, Active Load Emulators facilitate thorough validation and optimization before the inverters are deployed in real-world applications.
Overall, Active Load Emulators are indispensable tools in inverter test bench technology to analyze and ensure the performance, reliability and interaction of inverters with the grid or other energy sources.