受到海浪冲击与燃油温度变化影响，船舶发动机呈现显著的非线性与时变特性，导致发动机的电路频率波动较大，难以高效稳定控制。因此，设计以ARM为核心的船舶发动机电路频率嵌入式控制器。根据控制器设计需求，选取ARM Cortex-M7+M4双核异构内核的STM32H750嵌入式芯片，设计嵌入式控制器。通过电路实时获取船舶发动机的转速与电路频率等数据，结合船舶行驶工况、发动机电路频率目标值共同输入到STM32H750嵌入式芯片内的PID控制算法中，经PID运算输出频率调节量，精准控制变频器IGBT功率元件，最终使发动机频率稳定维持在各类航行工况的理想区间。结果显示，该控制器可快速抑制巡航、高速行驶、加速、减速各种行驶工况下船舶发动机的电路频率波动，令频率稳定在额定频率的±0.2 Hz范围内。
Due to the impact of ocean waves and changes in fuel temperature, ship engines exhibit significant nonlinear and time-varying characteristics, resulting in significant frequency fluctuations in the engine's circuit and making it difficult to efficiently and stably control. Therefore, design a frequency embedded controller for ship engine circuits with ARM as the core. According to the controller design requirements, select the STM32H750 embedded chip with ARM Cortex-M7+M4 dual core heterogeneous core to design an embedded controller. Real time acquisition of ship engine speed and circuit frequency data through circuits, combined with ship driving conditions and engine circuit frequency target values, is input into the PID control algorithm in the STM32H750 embedded chip. Through PID calculation, the frequency adjustment amount is output to accurately control the IGBT power components of the frequency converter, ultimately maintaining the engine frequency stable in the ideal range of various navigation conditions. The results show that the controller can quickly suppress the frequency fluctuations of the ship engine circuit under various driving conditions such as cruise, high-speed driving, acceleration, and deceleration, and stabilize the frequency within the range of ± 0.2 Hz of the rated frequency.
2025,47(20): 181-184 收稿日期：2025-5-22
DOI：10.3404/j.issn.1672-7649.2025.20.028
分类号：U664.1；V233
作者简介：管小明(1979-),男,硕士,副教授,研究方向为电路设计与智能化设备
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