scholarly journals Vector control strategy of the five-phase VSI

2021 ◽  
Vol 19 ◽  
pp. 641-646
Author(s):  
Jan Iwaszkiewicz ◽  
◽  
Adam Muc

The paper describes an example of the vector control strategy applied to five-phase two-level inverters. Two base methods are discussed. The first one is based on the standard space vector transformation, while the other uses state vectors which enable the definition of the basic physical quantities of the inverter. The proposed notation system offers an universal simplification of vector identification. It comprises a standardized proposal of notation and vector marking. This tool may be really useful for the description of inverter states and makes it possible to reach correlation between state and space vectors. All vectors are defined by use of the same digits. The proposed mathematical tool has been verified during simulation tests performed with the use of the PLECS program.

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4385
Author(s):  
Jan Iwaszkiewicz ◽  
Adam Muc

The paper proposes a general description system of the five-phase two-level inverter. The two base methods are presented and discussed. The first one is based on the standard space vector transformation, while the other uses state vectors which enable the definition of the basic physical quantities of the inverter: current and voltage. The proposed notation system offers a general simplification of vector identification. It comprises a standardized proposal of notation and vector marking, which may be extremely useful for the specification of inverter states. The described notation system makes it possible to reach correlation between state and space vectors. It presents space and state vectors using the same digits. These properties suggest that the proposed notation system is a useful mathematical tool and may be really suitable in designing control algorithms. This mathematical tool was verified during simulation tests performed with the use of the Simulation Platform for Power Electronics Systems—PLECS.


2013 ◽  
Vol 278-280 ◽  
pp. 79-85 ◽  
Author(s):  
Xiao Ju Chen ◽  
Ai Min Zhang ◽  
Jing Jing Huang ◽  
Jian Hua Wang

In order to reduce the vast total harmonic distortion (THD) caused by hysteresis loop space vector control strategy in three-phase Voltage Source Rectifier (VSR), an optimized strategy based on fuzzy rules is proposed in the paper. In the new strategy, a current error vector threshold value was pre-set. When the actual current error value is less than the threshold, the hysteresis loop space vector control strategy will be adopted to reduce the switching frequency and loss. However, when the current error value is larger than the threshold, the optimized hysteresis loop control strategy based on fuzzy rules will be adopted to achieve the fast current tracking. Based on the new strategy, the simulation model has been established and simulated by matlab/simulink. And the results show that the optimized control strategy not only ensures the fast dynamic response with low switching frequency, but also reduces the current THD significantly. Finally, the feasibility and the superiority of the optimized strategy based on fuzzy rules have been further verified under a 1kW experiment system.


1990 ◽  
Vol 6 (2) ◽  
pp. 31-36 ◽  
Author(s):  
J. Crampton ◽  
A. Morris ◽  
G. Lycett ◽  
A. Warren ◽  
P. Eggleston

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