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引用次数: 0
摘要
本研究提出了一种新型九电平逆变器，使用一个电压源、10 个单向和 1 个双向功率开关以及两个电容器，可用于地面电源装置（GPU）。采用选择性谐波消除方法将 115/200 V 和 400 Hz 输出电压的总谐波失真降至 3% 以下。与现有的转换器相比，拟议的转换器使用了更少的设备来输出九级阶梯。此外，建议的转换器还使用了电容器电压的固有自电压平衡。因此，控制算法变得更加简单。在本研究中，介绍了拟议拓扑结构的拓扑分析、调制算法、电容器计算、损耗、效率和性能分析。在效率、开关、电容器、二极管和源数量方面，将所提出的电路与最近发表的论文进行了比较。拓扑结构的理论和实验性能已通过 PSCAD 和 PSIM 软件以及 350 W 的实验装置进行了仿真验证。
A novel nine-level inverter, applicable in air plane ground power unit
In this study, a novel nine-level inverter using one voltage source, 10 unidirectional and one bidirectional power switches, and two capacitors has been proposed to utilize in ground power units (GPUs). Selective harmonic elimination method has been applied to reduce the output voltage's THD to less than 3% with 115/200 V and 400 Hz. The proposed converter utilized a lower number of devices to output a nine-level staircase in comparison to existing converters. Also, the proposed converter uses inherent self-voltage balancing for capacitors' voltage. So, the control algorithm gets simpler. In this study, the topology analysis, modulation algorithm, capacitor calculation, loss, efficiency, and performance analysis of the proposed topology have been presented. The proposed circuit has been compared to recently published papers in terms of efficiency, switch, capacitor, diode, and source numbers. The theoretical and experimental performance of the topology has been verified by simulation on PSCAD and PSIM software and 350 W experimental setup.
期刊介绍：
IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes:
Applications:
Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances.
Technologies:
Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies.
Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials.
Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems.
Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques.
Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material.
Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest.
Special Issues. Current Call for papers:
Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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