| 引用本文: | 孙志豪,黄文焘,卫卫,余墨多,邰能灵.船舶大功率电力推进虚拟同步电机控制方法[J].电力自动化设备,2022,42(11): |
| SUN Zhihao,HUANG Wentao,WEI Wei,YU Moduo,TAI Nengling.Virtual synchronous machine-based control method for high power electric propulsion of ship[J].Electric Power Automation Equipment,2022,42(11): |
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| 摘要: |
| 电力推进作为船舶综合电力系统的最重要负载之一，受工况与海况的多重影响，其易产生大幅功率波动，对系统的安全稳定运行造成冲击。为此，提出了船舶大功率电力推进虚拟同步电机控制方法。在控制上将整流单元等效为同步电机，为端口功率与频率响应增加惯性特征；逆变单元采用磁场定向矢量控制，提升推进电机的调速性能，利用虚拟惯性与阻尼平滑推进功率冲击、抑制电网频率波动。建立虚拟同步电机控制的变换器小信号模型，考虑直流电容与推进负载的动态特性，分析控制参数变化对变频器响应特性的影响，综合考虑冲击功率的抑制效果与动态性能，给出一种参数设计方法。利用PSCAD/EMTDC与RT-LAB半实物仿真，验证了所提控制方法能够在既有硬件配置下将推进冲击功率峰值降低30%，且不影响推进调速性能，有效地改善了电力推进系统的功率特性，保障了船舶综合电力系统的安全稳定运行。 |
| 关键词: 虚拟同步电机 船舶综合电力系统 电力推进 小信号模型 负载冲击功率 |
| DOI：10.16081/j.epae.202204016 |
| 分类号:TM32 |
| 基金项目:上海交通大学深蓝计划项目(SL2020MS018)；中国电机工程学会青年人才托举工程项目(JCB-2020-187) |
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| Virtual synchronous machine-based control method for high power electric propulsion of ship |
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SUN Zhihao1, HUANG Wentao1, WEI Wei2, YU Moduo1, TAI Nengling1
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1.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China;2.Marine Design & Research Institute of China, Shanghai 200011, China
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| Abstract: |
| Electric propulsion, as one of the most important load of ship integrated power system, is affected by multiple operation conditions and sea conditions, and it is easy to produce large power fluctuation, which causes impact on the safe and stable operation of the system. Therefore, a virtual synchronous machine-based control method for high power electric propulsion of ship is proposed. The rectifier unit is equivalent to a synchronous machine to increase the inertia characteristics of port power and frequency response. The inverter unit adopts magnetic field directional vector control to improve the speed regulation performance of the propulsion machine, and uses virtual inertia and damping to smooth the propulsion impact power and suppress the frequency fluctuation of power grid. The small signal model of the converter controlled by virtual synchronous machine is established. Considering the dynamic characteristics of DC capacitance and propulsion load, the influence of control parameters’ change on the response characteristics of the converter is analyzed. Considering the suppression effect of impact power and dynamic performance comprehensively, a parameter design method is given. PSCAD/EMTDC simulation and RT-LAB hardware-in-loop test show that the proposed control method can reduce the peak power of propulsion impulse by 30% under the existing hardware configuration without affecting the performance of propulsion speed regulation, effectively improving the power characteristics of the electric propulsion system, and ensuring the safe and stable operation of the ship integrated power system. |
| Key words: virtual synchronous machine ship integrated power system electric propulsion small signal model load impact power |
