With less fragile power electronics integrated, the overall shipboard power system (SPS) safety level is prone to increase. In this article, the motion equation concept of a less power electronics-based more-electric ship is proposed to study the SPS dynamics. A wound rotor induction machine (WRIM) acts as the propulsion load, whose stator and power converter are regarded as a synthetic internal voltage vector (SIVV). The small-signal model of a WRIM-based electric drivetrain (WRIM-ED) is established in the electromechanical control timescale. Besides, the external dynamic behaviors of the propulsion load are investigated in detail according to the phase and amplitude of SIVV. The control effects of phase-locked loop (PLL), rotor speed control (RSC), and reactive power control (RPC) are taken into account. In addition, the control schemes by applying the traditional PLL-based vector control (PLL-VC) and an emulated stator voltage-oriented VC (ESVO-VC) for WRIM-ED are described. Moreover, with ESVO-VC, the expression of equivalent inertia for WRIM-ED is much simplified, and there is no need to tune the PLL controller gains. MATLAB/Simulink is applied to carry out simulations to investigate the control effects of both PLL-VC and ESVO-VC on the system dynamic performance.

中文翻译：

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基于绕线转子感应电机的舰载电力系统机电控制时标中电力传动系统小信号模型的合成内电压相幅动力学研究

由于集成了较不脆弱的电力电子设备，因此整体舰载电源系统 (SPS) 安全级别很容易提高。在本文中，提出了基于低功率电子的多电船的运动方程概念来研究 SPS 动力学。绕线转子感应电机 (WRIM) 作为推进负载，其定子和功率转换器被视为合成内部电压矢量 (SIVV)。在机电控制时间尺度上建立了基于 WRIM 的电动传动系统 (WRIM-ED) 的小信号模型。此外，根据SIVV的相位和幅度，详细研究了推进载荷的外部动力行为。考虑了锁相环 (PLL)、转子速度控制 (RSC) 和无功功率控制 (RPC) 的控制效果。此外，描述了通过应用传统的基于 PLL 的矢量控制 (PLL-VC) 和用于 WRIM-ED 的仿真定子电压导向 VC (ESVO-VC) 的控制方案。此外，使用 ESVO-VC，WRIM-ED 的等效惯性表达式大大简化，无需调整 PLL 控制器增益。应用MATLAB/Simulink 进行仿真，研究PLL-VC 和ESVO-VC 对系统动态性能的控制效果。