Zobrazeno 1 - 10
of 384
pro vyhledávání: '"Dong-Choon Lee"'
Publikováno v:
IEEE Access, Vol 12, Pp 140660-140670 (2024)
This paper proposes a novel algorithm for the parameter identification of induction motors based on third-order generalized integrators (TOGIs), where both the electrical and mechanical parameters are estimated. First, AC voltages of 0.7 V at 200 Hz
Externí odkaz:
https://doaj.org/article/67c70ba704474f7ba5a204a4c675afba
Publikováno v:
IEEE Open Journal of the Industrial Electronics Society, Vol 5, Pp 302-316 (2024)
This article proposes a novel submodule capacitor voltage balancing control for multiport modular multilevel converter (MMC)-based solid-state transformers. To balance each submodule capacitor voltage, the balancing control is usually applied to the
Externí odkaz:
https://doaj.org/article/49132ec1b5ba4fa98637a34697340493
Publikováno v:
IEEE Access, Vol 12, Pp 22110-22121 (2024)
In this paper, a novel control scheme is proposed for the recently developed six-level hybrid flying-capacitor inverter. In the conventional scheme, an auxiliary balancing circuit is required to regulate the voltages of split DC-link capacitors. This
Externí odkaz:
https://doaj.org/article/3fea2a6b7d3b445395a9e532ae80b7e7
Autor:
Adil Ayub Sheikh, Dong-Choon Lee
Publikováno v:
IEEE Access, Vol 11, Pp 141217-141231 (2023)
This paper proposes a novel multi-stage optimal economic dispatch algorithm for a seaport integrated with a DC microgrid to support the main grid while feeding local loads. In addition, a dynamic pricing profile has been generated to encourage the ad
Externí odkaz:
https://doaj.org/article/568e3558366746749a789f56691537c5
Autor:
Syed Mohammad Maaz, Dong-Choon Lee
Publikováno v:
IEEE Access, Vol 11, Pp 104234-104243 (2023)
In this study, a common-mode voltage (CMV) reduction scheme based on carrier-based pulse-width modulation (PWM) is proposed for asymmetric dual three-phase hybrid active neutral-point-clamped (ADTP-HANPC) inverters. The fundamental concept is that th
Externí odkaz:
https://doaj.org/article/748bbf1785174c408dbb2e87fbf51424
Publikováno v:
IEEE Access, Vol 11, Pp 8005-8016 (2023)
This paper proposes a new PWM technique for a reduced-component-count active impedance network (RCC-AIN) three-level inverter to maximize the input/output (I/O) voltage gain. Although the max boost control (MBC) technique offers the same I/O voltage
Externí odkaz:
https://doaj.org/article/69a78bcb11c449a0bd7819ad8396f2e5
Publikováno v:
Sensors, Vol 24, Iss 3, p 991 (2024)
In this article, a generalized control scheme is proposed to extend the operating range of three-phase hybrid cascaded H-bridge (HCHB) inverters into various voltage levels without necessitating alterations to the core structure or the integration of
Externí odkaz:
https://doaj.org/article/dde9883e9abb4028b2f9b4c971e4f0c2
Reduction of Half-Arm Current Stresses and Flying-Capacitor Voltage Ripples of Flying-Capacitor MMCs
Autor:
Duc Dung Le, Dong-Choon Lee
Publikováno v:
IEEE Access, Vol 8, Pp 180076-180086 (2020)
In this paper, a new control scheme that can reduce the current stresses on switching devices, flying capacitors, and inductors for flying-capacitor modular multilevel converters (FC-MMCs) is proposed, which is based on redistribution of power differ
Externí odkaz:
https://doaj.org/article/d79b98e1ab6b4e3eac774a952512cc63
Publikováno v:
IEEE Access, Vol 7, Pp 9989-9997 (2019)
This paper proposes a novel nonlinear control method for the input-parallel output-series modular dual active bridge (DAB) dc/dc converter which regulates the dc-bus voltage and individual module voltages together. At first, a state space form of the
Externí odkaz:
https://doaj.org/article/55db3ae3441b4bc18d895f85ef0b7dbc
Publikováno v:
IEEE Access, Vol 7, Pp 8070-8080 (2019)
This paper proposes a novel sensorless control based on the stator current vector for permanent-magnet synchronous generators in variable-speed wind energy conversion systems. In the proposed method, the rotor angle and speed are estimated indirectly
Externí odkaz:
https://doaj.org/article/0c7c4c9d18394b3daa9dccbb4bbf8461