摘要：In order to develop a high-voltage power supply （HVPS） with high quality parame- ters, not only its electrical circuit but also its structure should be studied in detail. In this paper, the structure design of the collector power supply for gyrotron is discussed first. Then the electri- cal field and potential simulations of its inain devices are analyzed. Finally, relevant calculations and conclusions are given.

摘要：The structure of the antenna which will be used in HT-7 tokamak electron cyclotron resonance heating (ecrh) experiment and the design of its key component (the elliptical reflector) were introduced. A quasi-Gaussian TE11 wave sent from the TE01-TE11 mode converter was reflected by two mirrors from the waveguide aperture to the plasma center area. One of the two mirrors is a plane mirror and the other is an elliptical mirror. In this process, the wave beam will be converged by the two reflecting mirrors and the emissive direction of the wave is also controlled by them. As requested physically for ecrh experiment, the arrangement of the two mirrors can ensure the wave to be launched from the low-field side of the tour.

摘要：应用准光学原理设计了HL-2A装置电子回旋共振加热(ecrh)系统新的集束天线,该天线能使4束68GHz/500kW/1s电子回旋波通过椭球镜聚焦和平面镜的反射,从一个直径350mm装置窗口同时注入托卡马克,对等离子体实现加热。根据基模高斯束的传播原理得出,在装置环向横截面中心处单条波束的功率密度为158MW·m-2,功率密度降为中心密度的1/e2的半径为31.7mm,微波束经过镜面聚焦和反射产生的欧姆损失和衍射损失分别为0.27%和0.64%。利用有限元分析软件Ansys对镜面进行热分析得到,在1s脉冲载荷下最大镜面温升仅为0.47℃,镜面可以自然冷却。

摘要：HL-2A装置电子回旋共振加热的天线系统主要由天线外壳、椭球镜、平面镜、转动机构和推动机构组成.转动机构可以推动平面镜环向、极向转动,进行不同区域的等离子体的加热和电流驱动.平面镜环向转动的角度范围为0°～37°,极向转动的角度范围为0°～15°.给出了驱动杆与平面镜转动角度之间的关系和对应曲线.介绍了椭球镜的安装和推动机构的结构,给出了椭球镜的椭球面方程.整个天线系统结构紧凑,安装和拆卸容易,调节方便.

摘要：研究了ecrh负高压脉冲电源系统各环节的保护特性,设计出相应的保护电路。实验表明,设计出的保护电路对系统的安全运行提供了可靠的保障。

摘要：为确保ecrh超导磁体装置稳定可靠地运行,设计了ecrh超导磁体装置的监测与控制系统。该监测与控制系统运用计算机网络技术和光纤隔离技术,利用图形化编程软件LabVIEW进行界面设计,可以设置超导磁体电流、电压等参数,并远程实时监控超导磁体及其硬件设备的状态。当探测到超导磁体失超或硬件设备发生故障时,会触发连锁保护,以确保超导磁体装置及整个ecrh系统稳定运行。

摘要：电子回旋共振加热(ecrh)是中国聚变工程实验堆(CFETR)实现科学目标必不可少的辅助加热和电流驱动方式。发射天线是电子回旋共振加热系统的核心部件之一。为获得等离子体最佳的电流驱动效率,从发射天线的总体方案、波束的传输、波束的汇聚与发射、中子屏蔽、维护方案等方面对ecrh系统顶部发射天线的初步结构进行了设计。ECCD发射天线通过多波束汇聚方式,在CFETR装置紧凑的顶部颈管内,实现了2组9波束微波功率注入至等离子体共振层。发射天线采用颈管插塞式结构设计,有利于中子屏蔽设计和遥操作维护。通过流-热-固耦合仿真分析,为天线发射镜设计了有效的主动冷却方案。本文的分析和设计,为ecrh发射天线进一步的详细工程设计奠定了基础。

摘要：HL-2A tokamak will be equipped with a 75 GHz/1 MW/1 s ecrh system. The paper describes the design of the transmission system (Fig. 1), which is made up with a transmission line, an equatorial launcher. The paper describes the design of main components of the system such as, waveguides, ellipsoidal surface mirrors, a chemical vapor (CVD) diamond window, a steering mirror.

摘要：Electron cyclotron resonance heating (ecrh) system is one of the most important Tokamak auxiliary heating methods. However, there are growing demands for ecrh system as the physical experiments progress which meanwhile adds the difficulty of designing and building the control system of its power source. In this paper, the method of designing a control system based on Single Chip Microcomputer (SCM) and Field Programmable Gate Array (FPGA) is introduced according to its main requirements. The experimental results show that the control system in this paper achieves the conversion of different working modes, gets exact timing, and realizes the failure protection in 10us thus can be used in the ecrh system.

摘要：HL-2A will be equipped with a 75 GHz/1 MW/1s electron cyclotron resonance heating (ecrh) system. The paper describes the design of the transmission system, which is made up of a transmission line, an equatorial launcher and a measureing system. The paper describes in detail the design of main components of the system such as, waveguides, ellipsoidal surface mirrors, chemical vapor (CVD) diamond window, steering mirror, and new directional coupler with a k-spectrometer. The newly-designed launcher can make the beam steer poloidally to deposit energy in different locations.