Sensorless Current Pulsation Compensation in a Hybrid Energy Storage
This paper presents a dual active bridge DC/DC converter used as an AC current compensator in a hybrid energy storage application. The AC current in the DC link appears when a three-phase, four-wire inverter operates with unbalanced output currents—for example, when trying to compensate for grid vol...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2252 |
| _version_ | 1797622634527064064 |
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| author | Karol Fatyga Dariusz Zieliński |
| author_facet | Karol Fatyga Dariusz Zieliński |
| author_sort | Karol Fatyga |
| collection | DOAJ |
| description | This paper presents a dual active bridge DC/DC converter used as an AC current compensator in a hybrid energy storage application. The AC current in the DC link appears when a three-phase, four-wire inverter operates with unbalanced output currents—for example, when trying to compensate for grid voltage unbalance. This AC current has adverse effects on the operation of the electrochemical energy storage, and it should be compensated. To achieve this, a compensator is introduced into the DC link circuit of the inverter—a DC/DC converter with a capacitor bank. The DC/DC converter is responsible for compensating the AC pulsation by creating its own pulsation with the opposite phase. In the paper, the genesis of this pulsation is explained, and a compensation circuit is proposed along with a sensorless compensation algorithm. The algorithm is based on symmetrical decomposition and is used to generate a reference signal for the compensator. The numerical analysis of the algorithm is presented, and the operation of the compensator is verified on the laboratory bench. |
| first_indexed | 2024-03-11T09:13:08Z |
| format | Article |
| id | doaj.art-810c382b90f5430aa297285a04965ddc |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:13:08Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-810c382b90f5430aa297285a04965ddc2023-11-16T18:53:01ZengMDPI AGApplied Sciences2076-34172023-02-01134225210.3390/app13042252Sensorless Current Pulsation Compensation in a Hybrid Energy StorageKarol Fatyga0Dariusz Zieliński1Department of Electrical Drives and Machines, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, PolandDepartment of Electrical Drives and Machines, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, PolandThis paper presents a dual active bridge DC/DC converter used as an AC current compensator in a hybrid energy storage application. The AC current in the DC link appears when a three-phase, four-wire inverter operates with unbalanced output currents—for example, when trying to compensate for grid voltage unbalance. This AC current has adverse effects on the operation of the electrochemical energy storage, and it should be compensated. To achieve this, a compensator is introduced into the DC link circuit of the inverter—a DC/DC converter with a capacitor bank. The DC/DC converter is responsible for compensating the AC pulsation by creating its own pulsation with the opposite phase. In the paper, the genesis of this pulsation is explained, and a compensation circuit is proposed along with a sensorless compensation algorithm. The algorithm is based on symmetrical decomposition and is used to generate a reference signal for the compensator. The numerical analysis of the algorithm is presented, and the operation of the compensator is verified on the laboratory bench.https://www.mdpi.com/2076-3417/13/4/2252energy storageprotection circuitDC link current pulsationdual-active bridge converterproportional-resonant controller |
| spellingShingle | Karol Fatyga Dariusz Zieliński Sensorless Current Pulsation Compensation in a Hybrid Energy Storage Applied Sciences energy storage protection circuit DC link current pulsation dual-active bridge converter proportional-resonant controller |
| title | Sensorless Current Pulsation Compensation in a Hybrid Energy Storage |
| title_full | Sensorless Current Pulsation Compensation in a Hybrid Energy Storage |
| title_fullStr | Sensorless Current Pulsation Compensation in a Hybrid Energy Storage |
| title_full_unstemmed | Sensorless Current Pulsation Compensation in a Hybrid Energy Storage |
| title_short | Sensorless Current Pulsation Compensation in a Hybrid Energy Storage |
| title_sort | sensorless current pulsation compensation in a hybrid energy storage |
| topic | energy storage protection circuit DC link current pulsation dual-active bridge converter proportional-resonant controller |
| url | https://www.mdpi.com/2076-3417/13/4/2252 |
| work_keys_str_mv | AT karolfatyga sensorlesscurrentpulsationcompensationinahybridenergystorage AT dariuszzielinski sensorlesscurrentpulsationcompensationinahybridenergystorage |