本文为荷兰代尔夫特技术大学(作者:Ferdinant Visser)的硕士论文,共85页。
不断上涨的燃料价格和减少移动运输污染的政治压力导致了电力运输的新技术。PEEC-Power B.V.正在为并联混合动力汽车开发一种距离扩展器,并希望为电力驱动的过渡做出贡献。
距离扩展器由三个子系统组成:内燃机、发电机和电力电子系统。本文是关于电力电子系统的设计与实现。首先对内燃机、发电机和蓄电池的性能指标和工作条件进行了研究。电力电子系统必须与这些系统一起工作,因此,必须研究电压电流额定值、预期频率和损耗。基于所连接系统的参数,讨论了两种变换器拓扑结构:一种是结合boost变换器的无源整流器,另一种是有源全桥变换器。讨论内容包括控制灵活性、谐波失真、重量和价格。在此基础上,对有源全桥变换器进行了详细的选择和讨论。
本文介绍了系统的基本工作原理,提出了满足功能要求的完整硬件设计方案。此外,还开发了一个测试装置,以研究元件的工作特性和不同的PWM方法。研究了四种PWM方法(滞环调制、载波调制、空间矢量调制和谐波消除)和两种控制方法(直接转矩控制和磁场定向控制),研究内容包括谐波失真、开关损耗、鲁棒性和DSP实现。在此基础上,结合具体的应用仿真,提出了一种空间矢量调制与磁场定向控制相结合的电力电子变换器。最后,在实验装置上采用所选的PWM方法实现了开环控制。对开关性能、同步电机启动、谐波失真和效率进行了测量,在文献研究和模拟的基础上,将研究结果与预期进行了比较。
Increasing fuel prices and politicalpressure to reduce the pollution in the mobile transport lead to newtechnologies for electric transport. PEEC-Power B.V. is developing a rangeextender for parallel hybrid vehicles and wants to contribute to the transitiontowards electric driving. The range extender consists of three subsystems: combustionengine, generator and the power electronic system. This thesis is about thedesign and implementation of this power electronic system. First thespecifications and operating conditions of the combustion engine, generator andbatterybus are investigated. The power electronic system has to operate withthese systems and therefore, voltage and current ratings, expected frequenciesand losses are investigated. Based on the parameters of the connected systems,two converter topologies are discussed: a passive rectifier combined with aboost converter and an active full bridge converter. This includes the controlflexibility, harmonic distortion, weight and price. Based on these aspects theactive full bridge converter is chosen and discussed in more detail. The basicoperation is presented and a complete hardware design is proposed to meet thefunctional requirements. Also a test setup is developed in order to investigatethe operating behavior of the hardware components and different PWM methods.Research is done to four PWM methods (Hysteresis modulation, carriermodulation, space vector modulation and harmonic elimination) and two controlmethods (direct torque control and field oriented control). This includesharmonic distortion, switching losses, robustness and DSP implementation. Basedon these aspects and application specific simulations, a complete powerelectronic converter is proposed with space vector modulation combined withfield oriented control. At last, an open loop control with the chosen PWMmethod is implemented on the test setup. Measurements are performed onswitching performance, starting the synchronous machine, harmonic distortionand efficiency. The results are compared to the expectations based onliterature study and simulations.
- 引言
- 系统描述
- 变换器拓扑
- 硬件设计
- PWM与控制方法
- 具体实现与测量
- 结论与未来工作展望
附录A 48T SMPM发电机组数据表
附录B 拟议设计的硬件成本价格计算
附录C Fuji 2MBI200U4B数据手册
附录D 测试设置
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