Robust Linear Control of Boost and Buck-Boost DC-DC Converters in Micro-Grids with Constant Power Loads

被引:12
作者
Yfoulis, Christos [1 ,2 ]
Papadopoulou, Simira [1 ,2 ]
Voutetakis, Spyridon [2 ]
机构
[1] Int Hellen Univ IHU, Dept Ind Engn & Management IEM, Thessaloniki 57400, Greece
[2] Ctr Res & Technol Hellas CERTH, Chem Proc Engn Res Inst CPERI, Thessaloniki 57001, Greece
关键词
Buck-Boost DC-DC converters; PID Type-III voltage-mode compensation; constant power loads; DC micro-grids; Model predictive control; reference governor; MODEL-PREDICTIVE CONTROL; VOLTAGE CONTROL; SYSTEMS;
D O I
10.3390/en13184829
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Power distribution systems nowadays are highly penetrated by renewable energy sources, and this explains the dominant role of power electronic converters in their operation. However, the presence of multiple power electronic conversion units gives rise to the so-called phenomenon of Constant Power Loads (CPLs), which poses a serious stability challenge in the overall operation of a DC micro-grid. This article addresses the problem of enhancing the stability margin of boost and buck-boost DC-DC converters employed in DC micro-grids under uncertain mixed load conditions. This is done with a recently proposed methodology that relies on a two-degree-of-freedom (2-DOF) controller, comprised by a voltage-mode Proportional Integral Derivative (PID) (Type-III) primary controller and a reference governor (RG) secondary controller. This complementary scheme adjusts the imposed voltage reference dynamically and is designed in an optimal fashion via the Model Predictive Control (MPC) methodology based on a specialized composite (current and power) estimator. The outcome is a robust linear MPC controller in an explicit form that is shown to possess interesting robustness properties in a wide operating range and under various disturbances and mixed load conditions. The robustness and performance of the proposed controller/observer pair under steady-state, line, and mixed load variations is validated through extensive Matlab/Simulink simulations.
引用
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页数:21
相关论文
共 31 条
[1]   On Existence and Stability of Equilibria of Linear Time-Invariant Systems With Constant Power Loads [J].
Barabanov, Nikita ;
Ortega, Romeo ;
Grino, Robert ;
Polyak, Boris .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2016, 63 (01) :114-121
[2]  
Basso C., 2014, Switch-Mode Power Supply SPICE Cookbook
[3]   Explicit Model Predictive Control of DC-DC Switched-Mode Power Supplies With Extended Kalman Filtering [J].
Beccuti, Andrea Giovanni ;
Mariethoz, Sebastien ;
Cliquennois, Sebastien ;
Wang, Shu ;
Morari, Manfred .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2009, 56 (06) :1864-1874
[4]   Basic Principles of MPC for Power Converters [J].
Bordons, Carlos ;
Montero, Carlos .
IEEE INDUSTRIAL ELECTRONICS MAGAZINE, 2015, 9 (03) :31-43
[5]   Model predictive control for pre-compensated voltage mode controlled DC-DC converters [J].
Cavanini, Luca ;
Cimini, Gionata ;
Ippoliti, Gianluca ;
Bemporad, Alberto .
IET CONTROL THEORY AND APPLICATIONS, 2017, 11 (15) :2514-2520
[6]  
Cavanini L, 2016, IEEE INTL CONF IND I, P74, DOI 10.1109/INDIN.2016.7819137
[7]   A unified observer for robust sensorless control of DC-DC converters [J].
Cimini, Gionata ;
Ippoliti, Gianluca ;
Orlando, Giuseppe ;
Longhi, Sauro ;
Miceli, Rosario .
CONTROL ENGINEERING PRACTICE, 2017, 61 :21-27
[8]  
Cucuzzella M, 2019, IEEE DECIS CONTR P, P8435, DOI 10.1109/CDC40024.2019.9029657
[9]   Sliding mode voltage control of boost converters in DC microgrids [J].
Cucuzzella, Michele ;
Lazzari, Riccardo ;
Trip, Sebastian ;
Rosti, Simone ;
Sandroni, Carlo ;
Ferrara, Antonella .
CONTROL ENGINEERING PRACTICE, 2018, 73 :161-170
[10]   Fixed Switching Frequency Digital Sliding-Mode Control of DC-DC Power Supplies Loaded by Constant Power Loads with Inrush Current Limitation Capability [J].
El Aroudi, Abdelali ;
Areli Martinez-Trevino, Blanca ;
Vidal-Idiarte, Enric ;
Cid-Pastor, Angel .
ENERGIES, 2019, 12 (06)