柴油发电机组建模及其带脉冲负载系统运行分析
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摘要
脉冲负载逐渐成为电力负载的发展趋势,与传统负载不同,这类持续加卸载的突变型负载对于柴油发电机组等容量和惯性较小的冲击较大,易造成系统运行不稳定。分析柴油发电机组带雷达脉冲负载的系统结构,结合脉冲负载的工作特点对柴油发电机组结构进行细化考虑,建立柴油发电机组的数学模型。并在Matlab/Simulink中搭建系统仿真模型,分析了脉冲负载工作时系统的运行情况,研究了系统的运行与脉冲负载功率P_L、输出占空比D、和开关周期T_S的关系。搭建了柴油发电机组带脉冲负载系统的试验平台,通过试验验证了所建模型能够较真实地反映系统的运行行为。
The pulse load gradually becomes the development trend of the electric load. Different from the traditional load, this type of continuously loaded and unloaded catastrophic load has a greater impact on the capacity and inertia of the diesel generator set, which may cause unstable system operation. Analyze the system structure of the diesel generator set with radar pulse load, combine the working characteristics of the pulse load to consider the diesel generator set structure and establish the mathematical model of the diesel generator set. The system simulation model is built in Matlab/Simulink. The operation of the system under pulse load is analyzed. The relationship between system operation and pulse load power P_L, output duty cycle D, and switching period T_S is studied. Finally, a test platform for a diesel generator set with a pulsed load system is set up. It is verified through experiments that the model can reflect the operating behavior of the system more realistically.
The pulse load gradually becomes the development trend of the electric load. Different from the traditional load, this type of continuously loaded and unloaded catastrophic load has a greater impact on the capacity and inertia of the diesel generator set, which may cause unstable system operation. Analyze the system structure of the diesel generator set with radar pulse load, combine the working characteristics of the pulse load to consider the diesel generator set structure and establish the mathematical model of the diesel generator set. The system simulation model is built in Matlab/Simulink. The operation of the system under pulse load is analyzed. The relationship between system operation and pulse load power P_L, output duty cycle D, and switching period T_S is studied. Finally, a test platform for a diesel generator set with a pulsed load system is set up. It is verified through experiments that the model can reflect the operating behavior of the system more realistically.
引文
[1] FARHADI M,MOHAMMED O.Performance enhancement of actively controlled hybrid DC microgrid with pulsed load[C]// 2014 IEEE Industry Applications Society Annual Meeting.Vancouver,BC:IEEE Press,2014:1-8.
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[8] 胡亚超,徐晔,李建科,等.柴油发电机组-脉冲负载系统运行行为仿真[J].现代雷达,2015,37(6):74-77.HU Yachao,XU Ye,LI Jianke,et al.Diesel generator set-pulse load operating behavior of the system simulation[J].Modern Radar,2015,37 (6):74-77.
[9] 王川.负荷冲击型大扰动下船舶综合电网暂态电压稳定性研究[D].大连:大连海事大学,2012.WANG Chuan.Study on transient voltage stability of ship integrated power grid under large load disturbance[D].Dalian:Dalian Maritime University,2012.
[10] 孙才勤,王贝贝,张灵杰,等.船舶电力系统中同步发电机数学建模与仿真[J].大连海事大学学报,2013,39(1):99-102.SUN Caiqin,WANG Beibei,ZHANG Lingjie,et al.Mathematical modeling and simulation of synchronous generators in marine power systems[J].Journal of Dalian Maritime University,2013,39(1):99-102.
[2] 甄洪斌,张晓锋,沈兵,等.脉冲负荷对舰船综合电力系统的冲击作用研究[J].中国电机工程学报,2006,26(12):85-89.ZHEN Hongbin,Zhang Xiaofeng,SHEN Bing,et al.Study on the impact of pulse load on ship's comprehensive power system[J].Proceeding of the CSEE,2006,26 (12):85-89.
[3] 谭亲跃.大容量脉冲功率系统对电能质量的影响研究[D].武汉:华中科技大学,2011.TAN Qinyue.Study on the Influence of large capacity pulse power dystem on power quality[D].Wuhan:Huazhong University of Science and Technology,2011.
[4] 王晓铭.基于Matlab脉冲负载电源的优化设计[J].制导与引信,2013,34(4):35-39.WANG Xiaoming.Optimization design of pulse load power supply based on matlab[J].Guidance and Fuze,2013,34 (4):35-39.
[5] WETZ D A.Fundamental understanding of the impact high pulsed power loading has on a microgrid′s DC or AC Bus[R].San Diego,California:Office of Naval Research,2013.
[6] 陈宇航,王刚.含脉冲负载的综合电力系统运行特性分析[J].船电技术,2016(6):1-5.CHEN Yuhang,WANG Gang.Analysis of operating characteristics of integrated power system with pulse load[J].Electric Power Technology,2016(6):1-5.
[7] 王新枝,夏立,张超,等.脉冲负载管理研究现状[J].中国航海,2014(1):39-42.WANG Xinzhi,XIA Li,ZHANG Chao,et al.Current situation of impulsive load management[J].China Navigation,2014(1):39-42.
[8] 胡亚超,徐晔,李建科,等.柴油发电机组-脉冲负载系统运行行为仿真[J].现代雷达,2015,37(6):74-77.HU Yachao,XU Ye,LI Jianke,et al.Diesel generator set-pulse load operating behavior of the system simulation[J].Modern Radar,2015,37 (6):74-77.
[9] 王川.负荷冲击型大扰动下船舶综合电网暂态电压稳定性研究[D].大连:大连海事大学,2012.WANG Chuan.Study on transient voltage stability of ship integrated power grid under large load disturbance[D].Dalian:Dalian Maritime University,2012.
[10] 孙才勤,王贝贝,张灵杰,等.船舶电力系统中同步发电机数学建模与仿真[J].大连海事大学学报,2013,39(1):99-102.SUN Caiqin,WANG Beibei,ZHANG Lingjie,et al.Mathematical modeling and simulation of synchronous generators in marine power systems[J].Journal of Dalian Maritime University,2013,39(1):99-102.