Performance of Multistep Finite Control Set MPC
The performance of direct model predictive control (MPC) with reference tracking and long prediction horizons is evaluated through simulations, using the current control problem of a variable speed drive system with a voltage source inverter as an illustrative example. A modified sphere decoding algorithm is used to efficiently solve the optimization problem underlying MPC for long horizons. For a horizon of five and a three-level inverter, for example, the computational burden is reduced by four orders of magnitude, compared to the standard exhaustive search approach.
This paper illustrates the performance gains that are achievable by using prediction horizons larger than one. Specifically, for long prediction horizons and a low switching frequency, the total harmonic distortion of the current is significantly lower than for space vector modulation, making direct MPC with long horizons an attractive and computationally viable control scheme.
Related Power Electronics Projects:
- Real-Time Prediction of Power Electronic Device Temperatures Using PRBS-Generated Frequency-Domain Thermal Cross Coupling Characteristics.
- Survey of High-Temperature Reliability of Power ElectronicsPackaging Components.
- Influence of Power Electronic Converters on Current-Voltage Behaviors During Faults in DGU’s – Part ll: Photovoltaic Systems.
- Survey of High-Temperature Polymeric Encapsulants for Power Electronics Packaging.
- Editorial: IEEE Transactions on Power Electronics, February 2015.
- Mission Profile-Based Reliability Design and Real-Time Life Consumption Estimation in Power Electronics.
- Piezoelectric Actuators With Integrated High-Voltage PowerElectronics.
- Computationally Efficient, Real-Time, and Embeddable Prognostic Techniques for Power Electronics.
- Single Active Switch Power Electronics for Kilowatt Scale Capacitive Power Transfer.
- Study and Handling Methods of Power IGBT Module Failures in Power Electronic Converter Systems.
- High-Temperature (250 °C?/?500 °F) 19 000 min BLDC Fan for Forced Air-Cooling of Advanced Automotive Power Electronics.
- Power Electronics Control of an Energy Regenerative Mechatronic Damper.
- Research on Unbalanced-Load Correction Capability of Two Power Electronic Transformer Topologies.
- A Storage Integrated Modular Power Electronic Interface for Higher Power Distribution Availability.