A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter
This paper proposes a novel sliding mode control (SMC) scheme with a repetitive sliding surface for shunt active power filters (SAPF) to enhance the system robustness and eliminate harmonic current tracking errors. Traditional control schemes, such as PI control, repetitive control (RC), proportiona...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/7/1740 |
| _version_ | 1827719274065559552 |
|---|---|
| author | Yunguang Gao Xiaofan Li Wenjie Zhang Dianchao Hou Lijun Zheng |
| author_facet | Yunguang Gao Xiaofan Li Wenjie Zhang Dianchao Hou Lijun Zheng |
| author_sort | Yunguang Gao |
| collection | DOAJ |
| description | This paper proposes a novel sliding mode control (SMC) scheme with a repetitive sliding surface for shunt active power filters (SAPF) to enhance the system robustness and eliminate harmonic current tracking errors. Traditional control schemes, such as PI control, repetitive control (RC), proportional resonance control (PR), improve the stability of the SAPF in the stable grid to a certain extent. However, the robustness of the SAPF control system has not been improved. In this paper, the SMC is applied to SAPF, and a sliding mode controller is constructed by using a linear sliding mode surface composed of the system state variables and a fast exponential power-reaching law, which can effectively enhance the system robustness. When the grid parameters change or external disturbances exist, sliding surface drift and sliding mode chattering will occur. Although fast-tracking of the harmonic current can still be achieved, it is difficult to accurately compensate AC harmonic current. Moreover, this may cause the harmonic current compensation error to be amplified. RC can achieve infinite gain at multiples of the fundamental frequency and can track inputs without static errors. In order to fully eliminate the harmonic current tracking error and effectively suppress the total harmonic distortion (THD) of the grid, the sliding mode surface was modified. An RC term of harmonic current error is introduced to the sliding mode surface, and a novel plugin-repetitive sliding mode control strategy (RCSMC) for SAPF is proposed. Finally, simulation and experiment results on the LCLCL-filter based SAPF show the effectiveness of the proposed control strategy. |
| first_indexed | 2024-03-10T20:39:55Z |
| format | Article |
| id | doaj.art-5a8a7f6efb2e4d3ebabfdbb65bd92f90 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:39:55Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5a8a7f6efb2e4d3ebabfdbb65bd92f902023-11-19T20:46:26ZengMDPI AGEnergies1996-10732020-04-01137174010.3390/en13071740A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL FilterYunguang Gao0Xiaofan Li1Wenjie Zhang2Dianchao Hou3Lijun Zheng4College of Electronics and Information Engineering, Taiyuan University of Science & Technology, Taiyuan 030024, ChinaState Grid Taiyuan Power Supply Company, Taiyuan 030024, ChinaCollege of Electronics and Information Engineering, Taiyuan University of Science & Technology, Taiyuan 030024, ChinaCollege of Electronics and Information Engineering, Taiyuan University of Science & Technology, Taiyuan 030024, ChinaCollege of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaThis paper proposes a novel sliding mode control (SMC) scheme with a repetitive sliding surface for shunt active power filters (SAPF) to enhance the system robustness and eliminate harmonic current tracking errors. Traditional control schemes, such as PI control, repetitive control (RC), proportional resonance control (PR), improve the stability of the SAPF in the stable grid to a certain extent. However, the robustness of the SAPF control system has not been improved. In this paper, the SMC is applied to SAPF, and a sliding mode controller is constructed by using a linear sliding mode surface composed of the system state variables and a fast exponential power-reaching law, which can effectively enhance the system robustness. When the grid parameters change or external disturbances exist, sliding surface drift and sliding mode chattering will occur. Although fast-tracking of the harmonic current can still be achieved, it is difficult to accurately compensate AC harmonic current. Moreover, this may cause the harmonic current compensation error to be amplified. RC can achieve infinite gain at multiples of the fundamental frequency and can track inputs without static errors. In order to fully eliminate the harmonic current tracking error and effectively suppress the total harmonic distortion (THD) of the grid, the sliding mode surface was modified. An RC term of harmonic current error is introduced to the sliding mode surface, and a novel plugin-repetitive sliding mode control strategy (RCSMC) for SAPF is proposed. Finally, simulation and experiment results on the LCLCL-filter based SAPF show the effectiveness of the proposed control strategy.https://www.mdpi.com/1996-1073/13/7/1740SAPFharmonic current compensationLCLCL filterrepetitive control (RC)sliding mode control (SMC)plugin-repetitive sliding mode control (RCSMC) |
| spellingShingle | Yunguang Gao Xiaofan Li Wenjie Zhang Dianchao Hou Lijun Zheng A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter Energies SAPF harmonic current compensation LCLCL filter repetitive control (RC) sliding mode control (SMC) plugin-repetitive sliding mode control (RCSMC) |
| title | A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter |
| title_full | A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter |
| title_fullStr | A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter |
| title_full_unstemmed | A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter |
| title_short | A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter |
| title_sort | sliding mode control strategy with repetitive sliding surface for shunt active power filter with an lclcl filter |
| topic | SAPF harmonic current compensation LCLCL filter repetitive control (RC) sliding mode control (SMC) plugin-repetitive sliding mode control (RCSMC) |
| url | https://www.mdpi.com/1996-1073/13/7/1740 |
| work_keys_str_mv | AT yunguanggao aslidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT xiaofanli aslidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT wenjiezhang aslidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT dianchaohou aslidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT lijunzheng aslidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT yunguanggao slidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT xiaofanli slidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT wenjiezhang slidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT dianchaohou slidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter AT lijunzheng slidingmodecontrolstrategywithrepetitiveslidingsurfaceforshuntactivepowerfilterwithanlclclfilter |