Developing Converter Functions

RCP Systems for DC/DC Controllers

Developing converter functions

Application Areas

Developing and validating controllers for DC/DC converters in the vehicle
Power levels from very low (small batteries) to very high (high-voltage power transmission)

Key Points

Dedicated FPGA-based I/O interfaces with convenient Simulink® blocksets
User-programmable FPGA for even the fastest control loops
XSG AC Motor Control Solution with ready-to-use FPGA components for fast and convenient development of FPGA-based electric motor control algorithms
Short sample times of < 20 μs when using the user-programmable FPGA
Synchronous control of a high number of switches
Modular hardware concept enables flexible adaptation to changing requirements
High scalability from compact systems, such as MicroAutoBox II, to modular systems based on AutoBox or Tandem-AutoBox.
Fast iteration by automatically implementing Simulink models on the RCP hardware at the click of a button
Large set of easy-to-configure, comprehensive I/O functions

FPGA library components (e.g., encoder interfaces and PWM) can be combined freely on various FPGA platforms with different I/O modules and can also be connected to build custom design components. The XSG AC Motor Control Library supports you in creating custom control algorithms, or parts of them, on a field-programmable gate array (FPGA). This mainly involves the high-performance processing of various position sensors and in conjunction with the included XSG Utils library the flexible generation of PWM patterns. The XSG AC Motor Control Library is used for high-performance E-drive controls with sampling rates above 50 kHz by computing custom control algorithms or parts of them on an FPGA.

Functionality Overview of the XSG AC Motor Control Library

All library components are open and accessible
Incremental encoder processing (TTL or sine)
Hall sensor processing
Resolver and LVDT processing
Synchronous serial interface (SSI) and serial peripheral interface (SPI) sensor processing
Flexible PWM generation (by using the included XSG Utils library)
Small applications and components for control
Examples of controller models for various AC motors

For controlling various AC motors, e.g., asynchronous motors (ASMs), brushless DC motors (BLDCs) and permanent magnet synchronous motors (PMSMs), dSPACE offers the AC Motor Control Solution. The solution consists of hardware I/O modules for the DS5203 and MicroAutoBox with the DS1514 FPGA Base Board as well as a convenient Simulink blockset for easy I/O access directly from the model. For controllers that require very high closed-loop turnaround times, it is also possible to freely program the FPGA. By this means, controller algorithms can be outsourced and the controller loop can be closed directly on the FPGA. For in-vehicle use, the solution hardware can be installed in dSPACE AutoBox or MicroAutoBox. For stationary use, it can also be installed in an expansion box.

Products Used

MicroAutoBox Hardware Compact, stand-alone prototyping unit with real-time hardware, I/O, and signal conditioning DS1007 PPC Processor Board Processing hardware with high computing power combined with fast I/O access AutoBox Compact expansion box for in-vehicle experiments DS5203 FPGA Board FPGA programmable for different applications AC Motor Control Solution Control of diverse AC motors XSG AC Motor Control Library FPGA-based control design for MicroAutoBox II, MicroLabBox, SCALEXIO, and PHS-based systems RTI FPGA Programming Blockset Integrates FPGA models in dSPACE systems RapidPro Hardware Signal conditioning, power stages and intelligent I/O subsystems for rapid control prototyping SCALEXIO LabBox A compact modular real-time system DS6001 Processor Board High-performance processor board for SCALEXIO systems DS2655 FPGA Base Board SCALEXIO I/O board with user-programmable FPGA ConfigurationDesk Configuration and implementation software for dSPACE real-time hardware