A New Three-Level Neutral-Point-Clamped Fifteen-Switch Inverter for Independent Control of Two Three-Phase Loads

Pan, Lei; Zhang, Junru; Zhang, Jingmei; Wang, Kai; Pang, Yutao; Wang, Beibei

doi:10.1109/jestpe.2019.2903806

Cited by 8 publications

(6 citation statements)

References 25 publications

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“…The 3L inverter for controlling two 3-phase load individually is discussed in [29], however to improve the efficiency and performance of inverter drive the 5-phase load is chosen in this manuscript. The 5-phase 3L inverter which is capable of controlling two 5-phase loads is designed and analyzed.…”

Section: Table 5 Comparison Of Simulation and Experimental Resultsmentioning

confidence: 99%

“…The NSI and FLI is available for controlling the 3-phase load with 2L output where the number of switches are reduced than conventional dual load inverter. However, the losses and THD is more in 2L inverter which leads to the introduction of 3L inverter with five switches in each leg [29]. Though 3-phase inverters are commercialized for their easier availability and good performance, the 5-phase inverters are gaining attraction in recent years where the losses and harmonic contents are further reduced as the voltage stress is decreased due to less operating period.…”

Section: Introductionmentioning

confidence: 99%

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A Twenty Five Switch Inverter Topology for Controlling Two Independent Five-Phase Load

2022

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The inverter drives for controlling multiple loads will provide several advantages like lower power electronic components, costs, space, etc. In this paper, a new Three-Level (3L) Neutral Point Clamped (NPC) inverter topology for controlling the two independent Five-Phase Load (FPL) is proposed which is named as Twenty Five Switch Inverter (TFSI) topology. This TFSI topology has five switches and two diodes in each leg. The number of switches in the conventional two load inverter is 30 switches which is reduced to 25 switches in the proposed topology. The Space Vector Modulation (SVM) for the proposed TFSI topology has 1024 vectors which is the addition of two individual Five-Phase Three-Level (FPTL) SVM. The performance of two loads for the proposed topology is examined at different conditions like changing the fundamental frequency (fo), switching frequency (fsw) and modulation indices. The simulation is carried out with MATLAB/Simulink and the results are validated with hardware implementation.

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Section: Table 5 Comparison Of Simulation and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Twenty Five Switch Inverter Topology for Controlling Two Independent Five-Phase Load

2022

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“…In order to facilitate the control of the energy of lithium battery and supercapacitor, they are connected to the DC bus with the help of two-level interleaved DC/DC converters. Through a three-level three-leg inverter, the energy output by the hybrid energy source is used to power two hub-type external rotor permanent magnet synchronous motors to drive tram operation [15]. The choice of level is based on a comprehensive consideration of cost, control complexity and output voltage waveform quality.…”

Section: Composition and Technical Parameters Of Hybrid Energy Storag...mentioning

confidence: 99%

Hyper-Spherical Search Optimized Fuzzy Logic Control Considering Operating Conditions for Hybrid Tram

Gao

2022

IEEE Access

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Rule-based control strategy has significant advantages of strong robustness and high flexibility, and has gradually become a classical implementation method to optimize the energy management performance of modern energy-storage trams. However, it also faces the problems of overreliance on expert experience and poor adaptability to operating conditions. Therefore, an improved dynamic power distribution method for tram lithium battery/supercapacitor energy storage system is proposed, which introduces road slope and running speed into the decision variable layer of traditional fuzzy logic control input. Firstly, the membership functions and domain are formulated according to operating conditions, the response time of high power density of supercapacitor is adjusted to improve the dynamic performance of the tram. Secondly, the hyper-spherical search algorithm is used to optimize the weight of fuzzy control rules, the peak current of the lithium battery is minimized and the life span of the energy storage system is increased. Finally, the fuzzy control strategies combined with different decision variables are compared and analyzed by using the data of modern tram western suburban line in Beijing. The results show that the proposed strategy achieves multiple superior to traditional fuzzy control strategy in power distribution, charge state offset ranges of lithium battery and supercapacitor, and energy storage system overall efficiency. Compared with the traditional fixed weight scheme, the peak current of the lithium battery is reduced by 31.02% and the continuous tram mileage is increased by 22.45% in the rule weight dynamic optimization scheme.INDEX TERMS Hybrid energy storage, lithium battery, supercapacitor, hyper-spherical search algorithm, energy management.

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“…This, Fifteen Switch Inverter topology contains 3 switches in each leg which produces 2L output for each motor. The 3L inverter for controlling 3-phase load is developed and their performances are observed in [211]. The bearing current is eliminated by introducing the Fourth-Arm technique in [214] which may be considered for 5phase inverters.…”

Section: Motivationmentioning

confidence: 99%

A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

2021

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The Neutral Point Clamped (NPC) Multi-Level Inverters (MLI) have been ruling the power electronics industries for the past two decades. The Multi-Carrier Pulse Width Modulation (MCPWM) is common PWM techniques which are widely used in NPC-MLI applications. However, MCPWM is not having a good impact on the balancing of DC-link voltages, Common Mode Voltage (CMV) and limiting the Total Harmonics Distortion (THD). The Selective Harmonic Elimination (SHE) technique is introduced for reducing the THD, however all the switching angles should be maintained less than π/2 to keep the eliminated harmonics at constant level which narrows down the modulation index range. Hence, in recent days Space Vector Modulation (SVM) technique is widely used in NPC-MLI, which gives better DC-link voltage balancing, self-neutral point balancing, near-zero CMV reduction, better-quality harmonics profile and switching loss minimization. Hence, it is a preferred solution for the majority of electrical conversion applications such as electric traction, high power industrial drives, renewable power generation, and gridconnected inverters, etc. The paper gives a comprehensive review of the SVM for NPC-MLI. First, this paper deliberates the state of art for two-level SVM and extends it to three-level (3L) SVM. Also compares the 3L SVM performance with other MCPWM techniques. Followed by the various modified MLI SVM techniques in terms of their implementations, DC-link capacitor balancing, and reduction of CMV. Further, the review of MLI SVM is widened to open-end winding Inverters and multiphase MLIs. The final part of this paper discussed the future trends and research directions on MLI SVM techniques and its applications.

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A New Three-Level Neutral-Point-Clamped Fifteen-Switch Inverter for Independent Control of Two Three-Phase Loads

Cited by 8 publications

References 25 publications

A Twenty Five Switch Inverter Topology for Controlling Two Independent Five-Phase Load

A Twenty Five Switch Inverter Topology for Controlling Two Independent Five-Phase Load

Hyper-Spherical Search Optimized Fuzzy Logic Control Considering Operating Conditions for Hybrid Tram

A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

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