The Experts below are selected from a list of 15138 Experts worldwide ranked by ideXlab platform
Jing Yuan - One of the best experts on this subject based on the ideXlab platform.
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pulse power supply for high power semiconductor laser diode arrays with micro Current pre start control
IEEE Access, 2018Co-Authors: Qinglin Zhao, Ruru Cao, Deyu Wang, Jing YuanAbstract:This paper mainly introduces a pulse power supply for high-power semiconductor laser diode arrays with a novel micro-Current pre-start control method. According to the operating characteristics of the semiconductor laser, the output Current of the pulse power supply is required to be smooth, stable, and without overshoot. In the method of normal direct pulse start control, semiconductor laser is damaged easily by the overshoot and oscillation of pulse Current caused by the switching threshold voltage of MOSFET. And the time delay between the Current Reference Signal and the output pulse Current makes the design of closed loop more complicated. Based on the above problems, the method of micro-Current pre-start control is proposed. The method is simple to operate and it can solve the nonlinear problem of MOSFET caused by the switching threshold voltage. Therefore, it solve the problems of time delay between the Current Reference Signal and the output pulse Current and the overshoot and oscillation of output pulse Current in the rising process. A 25.6-kW prototype is intended for verifying the effectiveness of the micro-Current pre-start control.
Qinglin Zhao - One of the best experts on this subject based on the ideXlab platform.
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pulse power supply for high power semiconductor laser diode arrays with micro Current pre start control
IEEE Access, 2018Co-Authors: Qinglin Zhao, Ruru Cao, Deyu Wang, Jing YuanAbstract:This paper mainly introduces a pulse power supply for high-power semiconductor laser diode arrays with a novel micro-Current pre-start control method. According to the operating characteristics of the semiconductor laser, the output Current of the pulse power supply is required to be smooth, stable, and without overshoot. In the method of normal direct pulse start control, semiconductor laser is damaged easily by the overshoot and oscillation of pulse Current caused by the switching threshold voltage of MOSFET. And the time delay between the Current Reference Signal and the output pulse Current makes the design of closed loop more complicated. Based on the above problems, the method of micro-Current pre-start control is proposed. The method is simple to operate and it can solve the nonlinear problem of MOSFET caused by the switching threshold voltage. Therefore, it solve the problems of time delay between the Current Reference Signal and the output pulse Current and the overshoot and oscillation of output pulse Current in the rising process. A 25.6-kW prototype is intended for verifying the effectiveness of the micro-Current pre-start control.
Deyu Wang - One of the best experts on this subject based on the ideXlab platform.
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pulse power supply for high power semiconductor laser diode arrays with micro Current pre start control
IEEE Access, 2018Co-Authors: Qinglin Zhao, Ruru Cao, Deyu Wang, Jing YuanAbstract:This paper mainly introduces a pulse power supply for high-power semiconductor laser diode arrays with a novel micro-Current pre-start control method. According to the operating characteristics of the semiconductor laser, the output Current of the pulse power supply is required to be smooth, stable, and without overshoot. In the method of normal direct pulse start control, semiconductor laser is damaged easily by the overshoot and oscillation of pulse Current caused by the switching threshold voltage of MOSFET. And the time delay between the Current Reference Signal and the output pulse Current makes the design of closed loop more complicated. Based on the above problems, the method of micro-Current pre-start control is proposed. The method is simple to operate and it can solve the nonlinear problem of MOSFET caused by the switching threshold voltage. Therefore, it solve the problems of time delay between the Current Reference Signal and the output pulse Current and the overshoot and oscillation of output pulse Current in the rising process. A 25.6-kW prototype is intended for verifying the effectiveness of the micro-Current pre-start control.
Ruru Cao - One of the best experts on this subject based on the ideXlab platform.
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pulse power supply for high power semiconductor laser diode arrays with micro Current pre start control
IEEE Access, 2018Co-Authors: Qinglin Zhao, Ruru Cao, Deyu Wang, Jing YuanAbstract:This paper mainly introduces a pulse power supply for high-power semiconductor laser diode arrays with a novel micro-Current pre-start control method. According to the operating characteristics of the semiconductor laser, the output Current of the pulse power supply is required to be smooth, stable, and without overshoot. In the method of normal direct pulse start control, semiconductor laser is damaged easily by the overshoot and oscillation of pulse Current caused by the switching threshold voltage of MOSFET. And the time delay between the Current Reference Signal and the output pulse Current makes the design of closed loop more complicated. Based on the above problems, the method of micro-Current pre-start control is proposed. The method is simple to operate and it can solve the nonlinear problem of MOSFET caused by the switching threshold voltage. Therefore, it solve the problems of time delay between the Current Reference Signal and the output pulse Current and the overshoot and oscillation of output pulse Current in the rising process. A 25.6-kW prototype is intended for verifying the effectiveness of the micro-Current pre-start control.
Tor Arne Johansen - One of the best experts on this subject based on the ideXlab platform.
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optimized Current Reference generation for system level harmonic mitigation in a diesel electric ship using non linear model predictive control
International Conference on Industrial Technology, 2015Co-Authors: Espen Skjong, Marta Molinas, Tor Arne JohansenAbstract:Non-linear optimal control using collocation and multiple shooting is investigated in this paper to generate the Current Reference Signal for the lower level control of an active filter in a marine vessel with diesel-electric propulsion. The optimization objective is aimed at using the active filter for system-level minimization of Total Harmonics Distortion with the minimum rating of the active filter. The investigation of the different algorithms is oriented to the search of a solution that can offer a good compromise between accuracy and real-time implementation abilities. Results indicate that linear problem formulations are more suitable for real time implementation as they require less computational costs with minimal loss of flexibility. Non-linear problem formulations provide higher flexibility at the cost of higher computational efforts.
