scholarly journals Modified Topology for Three-Phase Multilevel Inverters Based on a Developed H-Bridge Inverter

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1848
Author(s):  
Samuel Nii Tackie ◽  
Ebrahim Babaei
Keyword(s):  
Control Method ◽  
Frequency Control ◽  
Control Technique ◽  
Dynamic Voltage Restorer ◽  
Phase Inverter ◽  
Semiconductor Switches ◽  
Three Phase ◽  
Power Switches ◽  
Dynamic Voltage ◽  
Three Phase Inverter

This paper proposes a modified three-phase inverter from the developed H-bridge structure having multilevel functionality. The proposed topology can generate 7-levels of phase voltages and 13-levels of line voltages. Simple control methods such as fundamental frequency control method can be applied to the proposed topology. By adding three single-phase transformers, galvanic isolation is created for use in three-phase Dynamic Voltage Restorer systems. The proposed three-phase inverter utilizes less number of components; dc sources, semiconductor switches and driver circuits. Lower rated power switches with reduced blocking voltages are also used. These attributes make the proposed topology less complex in-terms of architecture and control. Comprehensive analysis of the proposed three-phase multilevel inverter and other presented topologies are investigated with respect to levels of output voltage, driver circuit quantity, dc voltage count, total component quantity and standing voltage. Details of the appropriate control technique employed is explained. Finally, practicability of the proposed inverter is validated by simulation using EMTDC/PSCAD software and experimental prototype.

scholarly journals Modeling and control of a hybrid DC/DC/AC converter to transfer power under different power management strategies

2021 ◽  
Vol 12 (3) ◽  
pp. 1620
Author(s):  
Amin Alizadeh Asl ◽  
Ramin Alizadeh Asl
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
Proper Time ◽  
Management Strategies ◽  
Additional Advantage ◽  
Modeling And Control ◽  
Phase Inverter ◽  
Three Phase ◽  
Three Phase Inverter ◽  
Generation Power

<span>A hybrid DC/DC/AC converter connected to the grid without a three-phase transformer is controlled. The decentralized control method is applied to the hybrid DC-DC converter such that the maximum power of PV flows to the grid side. This controller must charge and discharge the battery at the proper time. It must also regulate DC-link voltage. An additional advantage of the proposed control is that the three-phase inverter does not need a separate controller such as PWM and SPWM. A simple technique is used for creating the desired phase shift in the three-phase inverter, which makes the active and reactive power of the inverter controllable. A new configuration is also proposed to transmit and manage the generation power of PV. In this<br />scheme, the battery and fuel cell are employed as an auxiliary source to manage the generation power of PV. Finally, a real-time simulation is performed to verify the effectiveness of the proposed controller and system by considering the real characteristics of PV and FC.</span>

scholarly journals Research on output power quality control technology of three-phase inverter

2021 ◽  
Vol 2108 (1) ◽  
pp. 012077
Author(s):  
Yinfeng Zhang ◽  
Ying Shao ◽  
Kang Lei ◽  
Kongxian Wang
Keyword(s):  
Quality Control ◽  
Power Quality ◽  
Output Power ◽  
Control Method ◽  
Development Trend ◽  
Control Technology ◽  
Phase Inverter ◽  
Advantages And Disadvantages ◽  
Three Phase ◽  
Three Phase Inverter

Abstract With the wide application of new energy and distributed generation system, high-performance inverter plays an important role as the key link of power system access. Its performance determines the quality of output power. Therefore, the output power quality control technology of three-phase inverter has become one of the important research directions in this field. This paper introduces the current main inverter power quality control methods, summarizes and compares the advantages and disadvantages of a single control method, and points out that the composite control method is the development trend of inverter output power quality control technology.

Realization of SVPWM Controller Based on FPGA

2013 ◽  
Vol 846-847 ◽  
pp. 583-586
Author(s):  
Hong Li Lv
Keyword(s):  
Control Method ◽  
Experimental Results ◽  
Phase Inverter ◽  
Three Phase ◽  
Fpga Chip ◽  
Realization Process ◽  
Three Phase Inverter

SVPWM controller is an important part of three-phase inverter. The paper is introduced the realization process for SVPWM controller based on EP3C40Q240C8 FPGA chip. The experimental results show that the control method is valid and feasible.

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