Model Predictive Control-Based Voltage Oscillations Stabilizer for Point-of-Load Converter With EMI Filter in DC Microgrids

Power to the ac loads in a dc microgrid is mostly provided by point-of-load (POL) converters with integrated input LC filters. However, the interaction between the LC filter and POL converters may introduce instability and voltage oscillations across input dc capacitor. To address this issue, this a...

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Published inIEEE journal of emerging and selected topics in industrial electronics (Print) Vol. 6; no. 1; pp. 215 - 223
Main Authors Kumar, Ranjan, Bhende, Chandrashekhar N.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Active damping
Algorithms
constant power load (CPL)
Control stability
Cost function
Damping
dc microgrids (DCMGS)
Distributed generation
Electric potential
Electrical loads
Electromagnetic interference
Industrial electronics
model predictive control
Oscillations
Oscillators
Predictive control
Sensors
Stability analysis
Stabilization
Transient response
Voltage
Voltage control
voltage oscillation
Online AccessGet full text
ISSN2687-9735
2687-9743
DOI10.1109/JESTIE.2024.3434422

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Abstract Power to the ac loads in a dc microgrid is mostly provided by point-of-load (POL) converters with integrated input LC filters. However, the interaction between the LC filter and POL converters may introduce instability and voltage oscillations across input dc capacitor. To address this issue, this article proposed an active damping stabilization control by incorporating a dc-side control stabilizing term into the finite control set model predictive control (FCS-MPC) algorithm. A new cost function is proposed in FCS-MPC control. The proposed method improves transient response and mitigates the voltage oscillations. Moreover, the proposed method requires fewer current sensors compared to alternative approaches, ensuring stability through an intrinsic and precise control strategy. Experimental and simulation results validate the effectiveness of the proposed stabilization control, offering a promising solution for POL converter applications.
AbstractList Power to the ac loads in a dc microgrid is mostly provided by point-of-load (POL) converters with integrated input LC filters. However, the interaction between the LC filter and POL converters may introduce instability and voltage oscillations across input dc capacitor. To address this issue, this article proposed an active damping stabilization control by incorporating a dc-side control stabilizing term into the finite control set model predictive control (FCS-MPC) algorithm. A new cost function is proposed in FCS-MPC control. The proposed method improves transient response and mitigates the voltage oscillations. Moreover, the proposed method requires fewer current sensors compared to alternative approaches, ensuring stability through an intrinsic and precise control strategy. Experimental and simulation results validate the effectiveness of the proposed stabilization control, offering a promising solution for POL converter applications.
Author Kumar, Ranjan
Bhende, Chandrashekhar N.
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Snippet Power to the ac loads in a dc microgrid is mostly provided by point-of-load (POL) converters with integrated input LC filters. However, the interaction between...
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SubjectTerms Active damping
Algorithms
constant power load (CPL)
Control stability
Cost function
Damping
dc microgrids (DCMGS)
Distributed generation
Electric potential
Electrical loads
Electromagnetic interference
Industrial electronics
model predictive control
Oscillations
Oscillators
Predictive control
Sensors
Stability analysis
Stabilization
Transient response
Voltage
Voltage control
voltage oscillation
Title Model Predictive Control-Based Voltage Oscillations Stabilizer for Point-of-Load Converter With EMI Filter in DC Microgrids
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Volume 6
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