【作者】 杜鹏英；

【导师】 张崇巍； 杜少武；

【作者基本信息】 合肥工业大学 ， 检测技术及自动化装置， 2002， 硕士

【摘要】 在托克马克装置中对等离子体进行磁约束的快控电源装置是一个大容量直流电源。本论文工作针对这个大容量特种电源的功能和特性的要求，提出一种设计方案，在这个方案中采用了模块化的四象限运行的PWM DC／DC电源，并采用了作为本文重要研究内容的DC／DC电源并联技术。 论文中介绍了DC／DC电源并联的设计思想。进行了系统结构的设计，并联系统的建模，以及运用MATLAB、Pspice软件的仿真，关注的中心是对并联直流电源的静态与动态均流等可能出现的问题进行分析并找出解决方案。论文对PWM DC／DC电源的电路结构和工作模式、并联系统的结构、是否采用直流输入母线、以及系统的控制方案等问题进行了分析和讨论。 除了系统仿真外，论文工作还包括实际样机的制作和实验。在理论成果的指导下自行制作了两台DC／DC电源装置实验样机，在其组成的并联系统上进行了实验研究和分析，得到了相应的实验结果并验证了本方案的可行性。 论文工作中还对样机的性能进行了分析，指出了从样机到产品尚有待提高和完善的地方。更多还原

【Abstract】 The Fast Control Power Supply (FCPS) of the TOKAMAK is a DC supply withhuge capacity to provide rapid magnetic field constraint to the plasma. Aimed at the specific requirements to the functionality and performance of FCPS, the dissertation puts forward an approach of the FCPS design. In this approach a modular DC/DC power supply that may be running in 4 quadrants, and applied the technique of parallel connection of DC/DC modules , that is a main concern of this dissertation, is realized.The dissertation introduces the thoughts concerning the design of DC/DC power modules that may be parallel connected. The dissertation studied the topology of system configuration, performed the modeling and MATLAB/Pspice based simulation. The focus was put on the problems and their solutions that may be related to the static and dynamic current sharing of parallel connected DC power modules. The problems such as the circuit and the working mode of the PWM DC/DC modules, the configuration of the parallel connection, the usage of the input DC bus, and the system control strategy were analyzed and discussed as well.Other than the work done on simulation, the dissertation work included the prototype system build-up and experiments on the prototype system. Guided by theoretical results, two set of laboratory prototype DC/DC modules were built up in the laboratory, parallel connected system was composed and experiments were carried out, and the obtained results verified the feasibility of the proposed approach.The dissertation work analyzed the performance of the prototype, revealed the direction of improvement and perfection for the transfer from prototype to product.更多还原