scholarly journals Hybrid control method for a single phase PFC using a low cost microcontroller

2005 ◽  
Author(s):  
L.T. Jakobsen ◽  
N. Nielsen ◽  
C. Wolf ◽  
M.A.E. Andersen
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Hybrid Control ◽  
Low Cost

scholarly journals Hybrid Control Strategy of MPC and DBC to Achieve a Fixed Frequency and Superior Robustness

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1176 ◽  
Author(s):  
Yuhan Zhang ◽  
Guiping Du ◽  
Jiajian Li ◽  
Yanxiong Lei
Keyword(s):  
Control Strategy ◽  
Single Phase ◽  
Control Method ◽  
Hybrid Control ◽  
Voltage Source ◽  
Switching Frequency ◽  
Transient Time ◽  
Finite Control ◽  
Control Set ◽  
Comparative Results

In this paper, a hybrid control strategy for power converters, based on improved deadbeat control (DBC) and improved finite control set model predictive control (MPC), is proposed. The presented control strategy employs a switched method to achieve a fixed switching frequency while maintaining a fast transient time. Moreover, the proposal incorporates error correction to achieve superior robustness. A prototype of a single-phase voltage source rectifier is established to verify the performance of the proposal. The comparative results with conventional MPC are given and illustrate the merits of the proposed control method.

scholarly journals Experimental Implementation of a Low-Cost Single Phase Five-Level Inverter for Autonomous PV System Applications Without Batteries

2018 ◽  
Vol 8 (1) ◽  
pp. 2452-2458 ◽  
Author(s):  
A. Nouaiti ◽  
A. Saad ◽  
A. Mesbahi ◽  
M. Khafallah
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Low Cost ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Solar Panels ◽  
Pv System ◽  
Point Tracking ◽  
Switched Capacitor Converter ◽  
Storage Batteries

This paper presents the design and the implementation of a low-cost single phase five-level inverter for photovoltaic applications. The proposed multilevel inverter is composed of a simple boost converter, a switched-capacitor converter, and an H-bridge converter. An efficient control method which associates a closed-loop regulation method with a simple maximum power point tracking (MPPT) method is applied in order to allow the proposed multilevel inverter to transfer power energy from solar panels to autonomous load with no storage batteries. An experimental prototype of this inverter is fabricated at the laboratory and tested with a digital control system. Obtained results confirm the simplicity and the performance of the proposed photovoltaic system.

A Hybrid Control Method for Output Power Smoothing of a PMSG-Based WECS

2012 ◽  
Vol 12 (6) ◽  
Author(s):  
Alok Pratap ◽  
Tomonobu Senju ◽  
Atsushi Yona ◽  
Naomitsu Urasaki ◽  
Toshihisa Funabashi
Keyword(s):  
Wind Turbine ◽  
Output Power ◽  
High Frequency ◽  
Pitch Angle ◽  
Control Method ◽  
Hybrid Control ◽  
Low Cost ◽  
Voltage Control ◽  
Power Smoothing ◽  
Power Fluctuations

This paper presents a smoothing method of output power by using pitch angle control, inertia of a wind turbine and DC-Link voltage control of a wind energy conversion system (WECS) using a permanent magnet synchronous generator (PMSG). The output power fluctuations in low and high frequency domains are smoothed by the pitch angle control of the WECS and the DC-Link voltage control, respectively. The remaining frequency, i.e., middle frequency is smoothed by the inertia of the wind turbine. The generator-side converter controls the generator torque of PMSG while the grid-side inverter controls the DC-Link voltage and grid voltage. From the proposed method, the generator torque is smoothed and kinetic energy generated by the inertia of the wind turbine is used to smooth the power fluctuations of the PMSG and wind turbine blade stress is mitigated as the pitch action in high frequency domain is reduced. Due to the DC-Link voltage in this paper by an appropriate operating region, the output power smoothing is achieved with stability and low cost. The effectiveness of the proposed method is validated by numerical simulations.

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