A Topology for Voltage Source Multi1level Inverter With Lower Number of Switches
نویسندگان
چکیده
In this study, a novel topology for symmetrical voltage source multilevel inverter is proposed, which comprises series connection of basic unit cells with H-bridge. It offers same voltage level with lower number of power semiconductor switches as compared with traditional cascaded Hbridge and other recent topologies, thereby reducing the number of gate drivers which in turn reduce the installation area and cost of the inverter circuit. In addition, the proposed topology offers fewer number of on-state switches that lead to a reduction in power loss. The operation and performance of the proposed multilevel inverter for 9-level and 15-level is verified through simulation and validated experimentally on a laboratory prototype using dSPACE real-time controller.
منابع مشابه
New Coupled-Inductor Based Multilevel Inverter with Extension Capability
Multilevel inverters have been developed due to limitations of the conventional two-level voltage source inverters (VSIs). Most of the topologies of multilevel inverters that have been presented in the literature are based on the sharing of the rated voltage between the switches so that the switches with lower voltage ratings can be used. In these topologies, the current rating of all of the sw...
متن کاملCascaded Multilevel Inverter Based on Quasi-Z-Source Converter: Analysis, Design and Study of Optimal Structures
In this paper, a new topology for cascaded multilevel inverter based on quasi-Z-source converter is proposed. In the proposed topology the magnitude of output DC voltage is not limited to the sum of magnitude of DC voltage sources. Moreover, the reliability of the circuit due to capability of short circuit by Z-source network is increased. The quasi-Z- source converter in different modes is ana...
متن کاملDesign and Implementation of a New Switch-Diode based Single Source Multilevel Inverter Topology
Multilevel inverters are a new generation of DC-AC converters at medium and high voltage and power levels. These converters have made great strides in the use of industrial applications compared to conventional two-level inverters due to lower harmonic distortion, filter size, EMI and dv/dt. Besides these merits, some disadvantages can be mentioned such as more power electronics devices and com...
متن کاملA Developed Asymmetric Multilevel Inverter with Lower Number of Components
In this paper, a new configuration for symmetrical and asymmetrical multilevel inverters is proposed. In asymmetric mode, different algorithms are suggested in order to determine the magnitudes of DC voltage sources. The merit of this topology to the conventional symmetric and asymmetric inverters is verified by the provided comparisons. This topology uses a lower number of power electronic dev...
متن کاملNew Cascaded Multilevel Inverter With Reduced Power Electronic Components
In this paper, a new structure for cascade multilevel inverter is presented which consists of a series connection of several sub-multilevel units. Each sub-multilevel unit comprises of eight unidirectional switches, two bidirectional switches, and six DC voltage sources. For the proposed cascade topology, two algorithms are presented to produce all possible levels at the output voltage waveform...
متن کامل