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PWM Control of a Dual Inverter Drive using a Floating Capacitor Inverter
2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL), 2019A carrier-based pwm scheme is presented for a dual inverter drive operating an open winding induction machine. One inverter is supplied from a dc power source while the other uses a floating capacitor dc voltage source. The output voltages of the two inverters have a nominal 90° phase shift relative to each other and low quality pwm motor voltages is ...
Sukhjit Singh +3 more
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Dual-Buck AC–AC Converter With Inverting and Non-Inverting Operations
IEEE Transactions on Power Electronics, 2018In this paper, a novel buck–boost ac–ac converter is proposed. The basic switching unit of the proposed converter is a unidirectional buck circuit; therefore, it has no shoot-through worries. It can achieve safe commutation without using RC snubbers or soft commutation strategies.
Usman Ali Khan +5 more
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Dual-Winding Impedance Source Inverters
2020The coupled inductors Z-source inverters (CISIs) can be divided into dual-winding impedance source inverters and three-winding impedance source inverters in general, where the dual-winding impedance source inverter could be subdivided into T-source inverter (TSI) [1], trans-quasi-Z-source inverter (trans-QZSI) [3], improved trans-QZSI [4], transformer ...
Hongpeng Liu +5 more
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Fault analysis for inverter driven dual-winding PMSMs
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017The multiplex 3-phase winding motors suffer from the problem of the magnetic coupling between the normal winding and the fault winding. To investigate the behaviors of the dual-winding PMSMs on the short-circuited fault conditions, a fault analysis model is developed that includes a dual-winding PMSM circuit model with a short-circuited fault coil ...
Pengfei Yao +4 more
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Invertibility and spectral properties of dual Toeplitz operators
Journal of Mathematical Analysis and Applications, 2020Consider \(L_2(\mathbb{D})\), where \(\mathbb{D}\) is the unit disk on the complex plane, and its Bergman subspace \(L^2_a\) consisting of analytic functions. Let \(P\) be the orthogonal projection of \(L_2(\mathbb{D})\) onto \(L^2_a\). Given \(\varphi \in L^{\infty}(\mathbb{D})\), the dual Toeplitz operator \(S_{\varphi}\) with symbol \(\varphi\) is ...
Ding, Xuanhao +2 more
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Third‐order dual‐band filter with dual‐band admittance inverter
Microwave and Optical Technology Letters, 2010AbstractIn this article, stepped impedance resonator with dual‐band admittance inverter is proposed to design the dual‐band microstrip filter to operate at (2.4, 5.2) GHz and at (0.9, 2.3) GHz, respectively. The proposed dual‐band microstrip filter consists of stepped‐impedance resonators (SIRs) in shunt cascaded by dual‐band inverter.
Wei‐Ping Liu, Yu‐Wei Tung
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The Inverted Dual Plane Mastoplasty Technique
2012Aesthetic breast augmentation is usually performed in a retromammary plane (behind the breast parenchyma), when breast parenchyma is enough to cover the implant or in case of active sport patients, or in a retropectoral plane (behind pectoralis muscle and serratus) in all other cases.
Giovanni Di Benedetto +5 more
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Dual Band Metamaterial Inverted-L Antenna
2019 IEEE 19th Mediterranean Microwave Symposium (MMS), 2019A coplanar waveguide (CPW) planar inverted-L antenna (PILA) is proposed. It uses a Composite Right/Left Handed (CRLH) transmisssion line metamaterial loading in order to achieve a dual band operation. It is shown that this unit cell produces a new resonant mode at 1.8 GHz plus the folded monopole mode at 3.5 GHz.
Nabil Dakhli, Fethi Choubani
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Dual active inverter for solar PV farms
2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2013A single-phase reduced matrix converter is presented. This converter is used in solar PV farms to interface the string or even individual panel to a medium voltage grid. A high frequency transformer is used to step up the voltage. The operation of this converter is explained and then a controller for the single-phase embodiment of the converter is ...
Joseph Carr, Juan C. Balda
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Design of dual PWM inverter for harmonic minimization
2016 China International Conference on Electricity Distribution (CICED), 2016In photovoltaic power generation system, DC voltage variation leads to AC voltage distortion. This paper introduced a dual PWM inverter to reduce AC voltage harmonics when DC voltage was changing, which is based on D&T's inverter model. Dual PWM inverter is composed of two series three-phase PWM inverters. Its fundamental voltage characteristic is used
Liu Fang +3 more
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