Journal ArticleDOI
Emulating DC constant power load: a robust sliding mode control approach
TLDR
In this article, an emulation of a programmable power electronic, constant power load (CPL) using a dc/dc step-up (boost) converter is presented, which is controlled by a robust sliding mode controller (SMC).Abstract:
This article presents emulation of a programmable power electronic, constant power load (CPL) using a dc/dc step-up (boost) converter. The converter is controlled by a robust sliding mode controller (SMC). A novel switching surface is proposed to ensure a required power sunk by the converter. The proposed dc CPL is simple in design, has fast dynamic response and high accuracy, and offers an inexpensive alternative to study converters for cascaded dc distribution power system applications. Furthermore, the proposed CPL is sufficiently robust against the input voltage variations. A laboratory prototype of the proposed dc CPL has been developed and validated with SMC realised through OPAL-RT platform. The capability of the proposed dc CPL is confirmed via experimentations in varied scenarios.read more
Citations
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Journal ArticleDOI
A Novel Nonlinear Deep Reinforcement Learning Controller for DC–DC Power Buck Converters
TL;DR: An intelligent proportional-integral based on sliding mode (SM) observer to mitigate the destructive impedance instabilities of nonideal CPLs with time-varying nature in the ultralocal model sense is addressed.
Journal ArticleDOI
A model predictive control-based hybrid MPPT method for boost converters
Erdal Irmak,Naki Guler +1 more
TL;DR: A digital control method that does not need any comparator is developed and has excellent dynamic performance thanks to its feature of reference tracking in only one switching period.
Proceedings ArticleDOI
Synthesis of constant power loads using switching converters under sliding mode control
TL;DR: The study shows that switching converters with a series inductor at the input port may behave as an instantaneous constant power load under sliding-mode control based on a nonlinear switching surface representing the error between the input power of the converter and a suitable power reference.
Journal ArticleDOI
Comparative analysis of maximum power point tracking controller for wind energy system
Mohammad Junaid Khan,Lini Mathew +1 more
TL;DR: The proposed adaptive perturb and observe (P&O) algorithm provides better results using the OPAL-RT simulator compared to the P&O method using MATLAB/SIMULINK™.
Journal ArticleDOI
Synthesis of Constant Power Loads Using Switching Converters Under Sliding-Mode Control
Blanca Areli Martinez-Trevino,Abdelali El Aroudi,Angel Cid-Pastor,Germain Garcia,Luis Martinez-Salamero +4 more
TL;DR: The design procedure yields a simple, economical and small-size prototype that can be useful in the experimental validation of converters supplying constant power loads and establishes the existence conditions for sliding-mode and the stability of the resulting ideal dynamics.
References
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Journal ArticleDOI
Linear Stabilization of a DC Bus Supplying a Constant Power Load: A General Design Approach
Pisit Liutanakul,Ahmed Bilal Awan,Serge Pierfederici,Babak Nahid-Mobarakeh,Farid Meibody-Tabar +4 more
TL;DR: In this paper, an oscillation compensation technique is proposed to improve the stability margin of an electrical system constituted by a dc power supply, an LC filter, and a constant power load.
Journal ArticleDOI
Analysis of power electronic converters using the generalized state-space averaging approach
TL;DR: In this paper, the generalized state-space averaging (GSSA) method is applied to power electronic converters and shown to work well only within specific converter topologies and parametric limits, where the model approximation order is not defined by the topology number of components.
Journal ArticleDOI
Loop-Cancellation Technique: A Novel Nonlinear Feedback to Overcome the Destabilizing Effect of Constant-Power Loads
TL;DR: A novel nonlinear feedback, which is called loop cancellation, is introduced and used to cancel the destabilizing effect of the constant-power loads.
Journal ArticleDOI
Robust sliding-mode control of dc/dc boost converter feeding a constant power load
TL;DR: In this article, a robust pulse-width modulation-based sliding-mode controller for a dc/dc boost converter feeding the CPL in a typical dc microgrid scenario is proposed which ensures constant power to be delivered to the load.
Patent
Vehicular electric power system
Abstract: A vehicular electric power system is composed of a rotating AC machine having polyphase armature coils, a full-wave rectifier for rectifying the generated voltages by a plurality of SiC-MOSFETs to give a rectified output to the battery unit, and a control device for selectively turning on the plurality of SiC-MOSFETs to raise the generated voltages by short-circuiting and open-circuiting the armature coils on the basis of the phases of voltages generated by the rotating AC machine at a predetermined duty factor.