Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode
With the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters. Compared with two-level inverters, multilevel inverters have the following advantages: (1) lower device voltage ratings; (2) better output...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
|
| Series: | Machines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-1702/12/1/27 |
| _version_ | 1797343105801781248 |
|---|---|
| author | Jian Yu Renhui Shen Le Zhou Zelin Jia Yulong Hao |
| author_facet | Jian Yu Renhui Shen Le Zhou Zelin Jia Yulong Hao |
| author_sort | Jian Yu |
| collection | DOAJ |
| description | With the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters. Compared with two-level inverters, multilevel inverters have the following advantages: (1) lower device voltage ratings; (2) better output filtering spectrum; (3) lower electromagnetic interference (EMI) noise; and (4) higher switching speed capability. However, the complex switching circuit of the multilevel inverter will bring more parasitic inductance, resulting in severe switching overvoltage (ringing). Especially in order to reduce the cost of the inverter, using the long-loop modulation mode, the commutation loop will introduce more parasitic inductance, which will make the overvoltage more serious. Consider that commonly used overvoltage absorption schemes are effective only for overvoltage or suppression of oscillations. Therefore, a new overvoltage absorption circuit is proposed in this paper, which can not only alleviate the overvoltage and ringing phenomena but also suppress the effect of voltage jumps during low-frequency switching on high-frequency input voltage. This overvoltage absorption circuit is characterized by low overvoltage, fast ringing damping, and minimum capacitance. Experiments and simulations are conducted to verify the effectiveness of this overvoltage absorption circuit using a three-level ANPC inverter as a prototype. The results show that the proposed overvoltage absorption circuit can significantly reduce the overvoltage level, shorten the oscillation time, and reduce the voltage difference between the upper and lower DC bus capacitors. |
| first_indexed | 2024-03-08T10:42:52Z |
| format | Article |
| id | doaj.art-00c5d8ba954f482eac109e27795a24a8 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-08T10:42:52Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-00c5d8ba954f482eac109e27795a24a82024-01-26T17:23:51ZengMDPI AGMachines2075-17022023-12-011212710.3390/machines12010027Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation ModeJian Yu0Renhui Shen1Le Zhou2Zelin Jia3Yulong Hao4School of Automation and Software Engineering, Shanxi University, Taiyuan 030000, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan 030000, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan 030000, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan 030000, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan 030000, ChinaWith the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters. Compared with two-level inverters, multilevel inverters have the following advantages: (1) lower device voltage ratings; (2) better output filtering spectrum; (3) lower electromagnetic interference (EMI) noise; and (4) higher switching speed capability. However, the complex switching circuit of the multilevel inverter will bring more parasitic inductance, resulting in severe switching overvoltage (ringing). Especially in order to reduce the cost of the inverter, using the long-loop modulation mode, the commutation loop will introduce more parasitic inductance, which will make the overvoltage more serious. Consider that commonly used overvoltage absorption schemes are effective only for overvoltage or suppression of oscillations. Therefore, a new overvoltage absorption circuit is proposed in this paper, which can not only alleviate the overvoltage and ringing phenomena but also suppress the effect of voltage jumps during low-frequency switching on high-frequency input voltage. This overvoltage absorption circuit is characterized by low overvoltage, fast ringing damping, and minimum capacitance. Experiments and simulations are conducted to verify the effectiveness of this overvoltage absorption circuit using a three-level ANPC inverter as a prototype. The results show that the proposed overvoltage absorption circuit can significantly reduce the overvoltage level, shorten the oscillation time, and reduce the voltage difference between the upper and lower DC bus capacitors.https://www.mdpi.com/2075-1702/12/1/27multilevel inverterparasitic effectsovervoltageringinglong-loop modulation modevoltage jumps |
| spellingShingle | Jian Yu Renhui Shen Le Zhou Zelin Jia Yulong Hao Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode Machines multilevel inverter parasitic effects overvoltage ringing long-loop modulation mode voltage jumps |
| title | Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode |
| title_full | Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode |
| title_fullStr | Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode |
| title_full_unstemmed | Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode |
| title_short | Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode |
| title_sort | investigation of a low speed commutation voltage shock problem in three level anpc inverter with hybrid modulation mode |
| topic | multilevel inverter parasitic effects overvoltage ringing long-loop modulation mode voltage jumps |
| url | https://www.mdpi.com/2075-1702/12/1/27 |
| work_keys_str_mv | AT jianyu investigationofalowspeedcommutationvoltageshockprobleminthreelevelanpcinverterwithhybridmodulationmode AT renhuishen investigationofalowspeedcommutationvoltageshockprobleminthreelevelanpcinverterwithhybridmodulationmode AT lezhou investigationofalowspeedcommutationvoltageshockprobleminthreelevelanpcinverterwithhybridmodulationmode AT zelinjia investigationofalowspeedcommutationvoltageshockprobleminthreelevelanpcinverterwithhybridmodulationmode AT yulonghao investigationofalowspeedcommutationvoltageshockprobleminthreelevelanpcinverterwithhybridmodulationmode |