Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory
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...
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MDPI AG
2020-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/11/2951 |
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| author | Azuwien Aida Bohari Hui Hwang Goh Agustiono Kurniawan Tonni Sze Sing Lee Sy Yi Sim Kai Chen Goh Chee Shen Lim Yi Chen Luo |
| author_facet | Azuwien Aida Bohari Hui Hwang Goh Agustiono Kurniawan Tonni Sze Sing Lee Sy Yi Sim Kai Chen Goh Chee Shen Lim Yi Chen Luo |
| author_sort | Azuwien Aida Bohari |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T19:17:41Z |
| format | Article |
| id | doaj.art-2665e83b6c3a4c6cad928135fa721fbf |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:17:41Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-2665e83b6c3a4c6cad928135fa721fbf2023-11-20T03:15:54ZengMDPI AGEnergies1996-10732020-06-011311295110.3390/en13112951Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power TheoryAzuwien Aida Bohari0Hui Hwang Goh1Agustiono Kurniawan Tonni2Sze Sing Lee3Sy Yi Sim4Kai Chen Goh5Chee Shen Lim6Yi Chen Luo7Department of Electrical Power Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat 86400, MalaysiaSchool of Electrical Engineering, Guangxi University, Nanning 530004, ChinaKey Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, College of the Environment and Ecology, Xiamen University, Xiamen 361102, ChinaNewcastle Research & Innovation Institute, Newcastle University in Singapore, Singapore 609607, SingaporeDepartment of Electrical Power Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat 86400, MalaysiaDepartment of Electrical Power Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat 86400, MalaysiaSchool of Electronics and Computer Science, University of Southampton, Malaysia Campus, Nusajaya 79200, MalaysiaSchool of Electrical Engineering, Guangxi University, Nanning 530004, ChinaThis 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.https://www.mdpi.com/1996-1073/13/11/2951unbalanced grid voltagemultilevel invertergrid-connected application |
| spellingShingle | Azuwien Aida Bohari Hui Hwang Goh Agustiono Kurniawan Tonni Sze Sing Lee Sy Yi Sim Kai Chen Goh Chee Shen Lim Yi Chen Luo Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory Energies unbalanced grid voltage multilevel inverter grid-connected application |
| title | Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory |
| title_full | Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory |
| title_fullStr | Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory |
| title_full_unstemmed | Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory |
| title_short | Predictive Direct Power Control for Dual-Active-Bridge Multilevel Inverter Based on Conservative Power Theory |
| title_sort | predictive direct power control for dual active bridge multilevel inverter based on conservative power theory |
| topic | unbalanced grid voltage multilevel inverter grid-connected application |
| url | https://www.mdpi.com/1996-1073/13/11/2951 |
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