Permanent magnet-assisted synchronous Reluctance Motors (PMaSynRMs) offer advantages such as low cost and high reliability. However, they are not feasible for high-speed applications due to their low mechanical streng...
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The current source inverter, as a highly promising technology, holds broad application prospects in the field of high-power transmission. Parallel operation can significantly increase output and effectively reduce sys...
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The modular multilevel converter(MMC)is a promising topology for medium-voltage drive applications due to its high-quality output waveforms,low device switching frequency and voltage ***,the large cell capacitor volta...
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The modular multilevel converter(MMC)is a promising topology for medium-voltage drive applications due to its high-quality output waveforms,low device switching frequency and voltage ***,the large cell capacitor voltage ripple is a severe challenge faced by MMC at low motor ***,a hybrid MMC(HMMC)topology is proven to be a competitive solution because of its lower cell capacitor voltage ripple and not demonstrating a common-mode voltage(CMV)problem compared with other ***,the DC-link switch with IGBT limits HMMC from being applied in highvoltage *** paper uses a thyristor instead of IGBT as the DC-link *** ensure the thyristor can be softly turned on and safely turned off,a new control scheme is *** using this proposed scheme,HMMC can also tolerate the failure of the thyristor being turned-off without shutting down the system,effectively improving its *** cell capacitor voltage ripple analysis is presented considering the effects of the thyristor switching *** addition,a decoupled energy balancing control is utilized to suppress the fluctuation of the DC *** results obtained from a 380 V/7.5 kW downscaled prototype validate the effectiveness of starting up a motor from the standby mode to rated speed applying full-torque.
In the high-performance control algorithms used in modern motor drive systems, accurate information about the rotor position is indispensable. As a type of position sensor, inductosyn is widely used in industrial auto...
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The axial flux yokeless and segment armature (YASA) machine and the radial flux surface-mounted permanent magnet (SPM) machine are widely used in the electric aviation field as two kinds of high-power density motor to...
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Pins and jacks play a crucial role in the transmission capability and reliability of electrical connectors. Their surface coating is especially vulnerable under mechanical friction or varying temperature condition. In...
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New energy delivery scenarios such as photovoltaic power stations, wind farm stations, and energy storage power stations are characterized by fluctuation and intermittency, so DC transformers need to be able to achiev...
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In this paper, we propose a novel methodology for determining the model parameters of semiconductor power devices. This method utilizes optimization techniques based on empirical data from actual double-pulse tests, i...
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EtherCAT is widely used in servo motor drive control system because of its excellent performance. In order to achieve the best performance of servo motor drive control system, the software architecture is analyzed and...
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High-precision DC voltage standard sources can be used for calibrating measuring instruments., and generating high-precision signals in various high-tech fields. The main challenge of the standard sources lies meeting...
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