KS-AMPS
The Advanced Modular Power System (KS-AMPS) is a flexible, highly dynamic
power converter system that allows a wide range of applications to be realized
simply and with optimization for specific
requirements.
Shaping current
The modular architecture ensures that functional and power enhancements are uncomplicated.
A system solution for battery simulation and testing, electric machine emulation, control of loading units or combination applications as well.
Benefits:
- Simple scalability of power and function
- Combined applications possible (e.g. KS-InvTest = battery simulation + e-motor emulation)
- System adaptations are easily possible later on
- Direct, function-based access to the SiC-MOSFET drive signal
- Highly dynamic: System clock 2 MHz and control loop 1 MHz
- Simple and cost-effective maintenance due to modular design
Possible applications
System components
Powercube & Module bay
The flexible power section of the KS-AMPS system for realizing various different applications.
The Powercubes, which are the core of the system, carry out the task of high-frequency power switching. With four or six integrated half bridges each, they can take on various tasks via the CU – from line converters, to DC control elements to AC control elements. They can also be designed as resonant converters. Three versions are currently available: HB17 half-bridge module, HB12 half-bridge module and RC12 resonant converter module. The Powercubes themselves can be connected in series or in parallel to form function groups or to adjust current, voltage and power as required. This makes it possible to accomplish a diverse array of tasks and functions through combinations in a single device – for instance battery simulation with emulation of a three-phase externally excited synchronous machine.
Module bay
The power modules themselves are located in the module bays of the AMPS system. These contain the DC link busbars and 12 module slots (HB17) or 5 module slots (HB12, RC12). Contacting of the power cubes on the copper busbars takes place automatically when they are inserted. To form functional groups or power groups, the power modules can be connected with each other accordingly. The KS-CU controls the individual modules synchronously and at high frequency according to the desired application. To realize higher power configurations or more complex functions, several module bays can also be interconnected.
Principle circuit diagrams and dimensioning data
Specifications half-bridge module HB17
Rated data:
Blocking voltage
1700 V
Rated power
600 kW (Ua = 1000 V, 6 x 100 A)
DC link voltage
800 … 1300 V
Phase current
100 A (uzk = 1100 V)
Avg. switching freq. module
6 x 50 kHz
Specifications half-bridge module HB12
Rated data:
Blocking voltage
1200 V
Rated power
1070 kW (Ua = 550 V, 6 x 325 A)
DC link voltage
500 … 800 V
Phase current
325 A (uzk = 600 V)
Avg. switching freq. module
6 x 30 kHz
Specifications resonant converter module RC12
Rated data:
Transformation ratio
1:1
Rated power
800 V
DC link voltage
800 V
Phase current
265 kW
Avg. switching freq. module
40 kHz
Application examples
KS-FU SiC
The KS-R2R frequency converter is part of the KS high-performance testing technology for complex testing tasks.
SiC-MOSFET power modules combined with fast signal processing and integrated model-based control technology enable highly dynamic applications. Mathematical modelling of the test bed and its components as well as state-of-theart control algorithms ensure maximum control quality. This system solution is the key to unprecedented results in engine, powertrain and complete vehicle testing.
