Improved Control Scheme for Low Voltage Ride-Through of PMSG-based Wind Energy Conversion Systems

This paper explores the feasibility of multilevel dual-active bridge-inverter (DABMI) applications for grid-connected applications of a modern Model of Predictive Direct Power Control (MPDPC) based on the conservative power theory (CPT). In the case of unbalanced grid voltages, the objective of the study is to promote continued active and reactive energy in MPDPC without reducing efficiency such as transient response and current harmonics. The nature of the instantaneous p-q theory permits only one out of three control targets to be fulfilled. The proposed control approached directly regulates the instantaneous active and reactive power to achieve three particular control objectives namely sinusoidal and symmetrical grid current, cancelling twice of fundamental grid frequency reactive power ripples, and removing twice grid frequency active power ripple. The techniques of complicated Grid part sequence extraction are unnecessary and improved at no extra expense, as is the case with current MPDPC fault-tolerant approaches. The instantaneous power at the next sampling instant is predicted with the newly developed discrete-time model. Each possible switching state will then be evaluated in the cost function defined until the optimal state which lead to the minimum power errors is determined. In MATLAB/Simulink simulation, the proposed CPT-based MPDPC measures reliability and performance at balanced and unbalanced grid voltages then compared with the conventional and existing MPDPC The proposed method manages to achieve all of three control targets which generates sinusoidal grid currents and attenuates active and reactive power ripple of twice the grid frequency exactly at the same time without losing its critical efficiency including transient reaction and current harmonics.

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“…The angular frequency ω is expressed in rad/s [39]. It's possible to present the grid voltages in the same way as the grid currents, for example:…”

Section: Methodsmentioning

confidence: 99%

Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory

et al. 2020

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Enhancing Zero Voltage Ride Through of PMSG-Based Wind Generator With Interchange of Converter Control and Optimized Supercapacitor Energy Storage System

Ghosh,

Kalyan Kumar

2024

IEEE Access

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Dynamic Power Optimization and Tracking Control for Permanent Magnet Synchronous Generator-Based Wind Energy Harvesting

Prasanna,

Chenchireddy,

Gayathri

et al. 2023

2023 International Conference on Sustainable Communication Networks and Application (ICSCNA)

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Improved Control Scheme for Low Voltage Ride-Through of PMSG-based Wind Energy Conversion Systems

Cited by 4 publications

References 15 publications

Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory

Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory

Enhancing Zero Voltage Ride Through of PMSG-Based Wind Generator With Interchange of Converter Control and Optimized Supercapacitor Energy Storage System

Dynamic Power Optimization and Tracking Control for Permanent Magnet Synchronous Generator-Based Wind Energy Harvesting

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