Virtual synchronous machine-based control method for high power electric propulsion of ship

被引：0
|
作者：
Sun Z. [1 ]
Huang W. [1 ]
Wei W. [2 ]
Yu M. [1 ]
Tai N. [1 ]
机构：
[1] Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai
[2] Marine Design, Research Institute of China, Shanghai
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 11期
关键词：
electric propulsion; load impact power; ship integrated power system; small signal model; virtual synchronous machine;
D O I：
10.16081/j.epae.202204016
中图分类号：
学科分类号：
摘要：
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. © 2022 Electric Power Automation Equipment Press. All rights reserved.
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页码：106 / 113
页数：7
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