国家同步辐射实验室直线加速器聚焦电源控制系统的改造

合肥国家同步辐射实验室（NSRL）直线加速器聚焦电源控制系统的改造在EPICS环境下进行。本文描述了该控制系统的硬件组成、软件设计及调试结果。     

NSRL输运线电源控制系统的改造

合肥国家同步辐射实验室（NSRL）输运线电源控制系统的改造是在EPICS的环境下进行的，本文描述了该控制系统的硬件组成、软件设计及调试结果。     

北京正负电子对撞机输运线磁铁电源控制系统

在北京正负电子对撞机重大改造工程中,新的控制系统将采用系统集成工具包EPICS进行开发.描述了在EPICS环境下开发的输运线磁铁电源控制系统,包括系统结构、控制软件和人机界面等.该系统已经正式投入运行,性能稳定可靠,为对撞机改造项目做出了贡献.     

合肥光源注入器电源控制系统的改造

合肥光源注入器电源控制系统改造是国家同步辐射实验室(NSRL)二期工程改造的一部分，基于EPICS通用软件开发环境开发。利用该系统实现了统一的分布式控制，功能较改造前有所增强，包括电源电流的逐步增减、保存和恢复电源状态及同时开所有电源的控制回路和主回路。运行结果表明系统工作可靠、操作方便。     

同步加速器磁场控制状态矩阵的优化乘法器设计

同步加速器的磁场控制系统系高精度的实时控制系统.随着CSR工程的进一步改造要求,以及数字化处理技术的不断发展,对浮点乘法的运算速度以及相应占用资源也提出更高要求.本文通过VHDL语言和BOOTH算法实现的优化乘法器,采用了结合3-2压缩器和4-2压缩器的树型结构,并以CycloneⅢ芯片EP3C25F256为硬件环境,进行了功能和时序仿真,与其他设计的仿真结果比较,验证了该浮点乘法器的正确和高速特性.     

EAST中央控制系统的改造

EAST中央控制系统是EAST实验调度管理的中枢，协调控制各分系统按照预设参数和控制逻辑投入试验，完成EAST装置的各种运行项目。利用PXI总线设备并结合虚拟仪器技术实现的新EAST中央控制系统可很好地完成对各分系统的参数设置和控制，同时升级改造后的网络环境也为实验的稳定运行提供了保障。改造后的EAST中央控制系统已应用于2012年春季EAST放电实验中，运行稳定可靠，取得了良好的控制效果。     

秦山一期核电厂反应堆棒控棒位系统的数字化设计及其可靠性

秦山一期核电厂300 MW反应堆功率棒控棒位系统为模拟仪表控制系统,由于设备老化、维护困难和可靠性下降等原因需要改造.系统改造采用基于CPU冗余、电源冗余和ControlNet现场总线冗余的控制方案.利用PLC控制技术,对其棒控棒位模拟仪表控制系统进行数字化改造设计,克服了系统参数不能实时调整、抗干扰能力差等缺陷,增强了系统的通信能力、集中监控能力及系统可维护性,提高了系统的可靠性和安全性.模块化的程序设计,增强了程序的可读性和实用性,减少了程序扫描时间,保证了系统响应速度.实际反应堆的运行效果验证了设计的合理性.     

合肥光源储存环校正铁电源控制系统改造

束流轨道稳定性是同步辐射光源的重要性能指标.储存环校正铁电源控制系统是进行束流轨道校正的重要前提.本文描述了该系统硬件结构、软件设计及调试结果.运行结果表明,改造后的合肥光源储存环校正铁电源控制系统很好地满足了轨道稳定性对其的要求.     

EPICS和合肥光源控制系统

介绍了一种分布式控制系统EPICS的总体结构及其各组成部件的功能。同时,对依据EPICS进行的合肥光源控制系统二期工程改造及其进展情况,以及EPICS在合肥光源控制系统改造中的应用也进行了概述。     

可编程逻辑控制系统在北京自由电子激光装置的实验物理和工业控制系统中的应用

在北京自由电子激光(BFEL)装置的搬迁改造工程中,开关机系统的控制采用基于实验物理和工业控制系统(EPICS)的可编程逻辑控制(PLC)控制系统,它具有安全可靠、操作简单、易于扩展、便于通讯等优点.本文介绍了该控制系统的设计和开发,包括系统软硬件的结构设计以及系统的EtherNet/IP网络通讯.     

核电站蒸汽发生器冲洗装置控制系统的开发

随着核电站运行和管理水平的提高,蒸汽发生器(SG)二次侧维护越来越受到重视。笔者开发的SG冲洗装置的主要部份是以PLC控制器和交流伺服电机核心组成的高精度运动控制系统。人-机操作界面采用现场操作站和遥控触摸屏相结合的方式,减少操作人员整体辐射水平。同时,该系统还具有事故工况下急停、泥渣收集和运行状态视频监视等功能。最后,提出了利用人工神经网络模型补偿冲洗手臂挠曲和系统运动控制中静摩擦力等造成的非线性影响,进一步提高系统控制精度。系统运行稳定、操作简单。     

合肥光源储存环新高频控制系统

合肥光源储存环新高频控制系统是一基于EPICS(ExperimentPhysicsandIndustrialControlSystem)的分布式控制系统。本文描述了其硬件结构、软件设计及测试结果。一年多的运行表明，该控制系统能很好地满足与高频系统相关的机器研究和运行的需要。     

Study of the DEF Feedback Control System in AC Operation of Superconducting Tokamak

AC operation with multiple full cycles has been successfully performed on the superconducting tokamak HT-7. In the experiment, it was discovered that the saturation of the transformer magnetic flux with DEF, a signal name, was one of key aspects that affected the AC operation. The conditions of DEF were examined through the DEF feedback control system. By controlling the working patterns of the subsystems, namely the poloidal field control system and density control system, it was guaranteed that DEF would remain in the non-saturated status.     

Development of a simulation platform for studying on primary frequency regulation characteristics of nuclear units

With the rapid development of nuclear units, the primary frequency regulation (PFR) characteristics of nuclear units have a significant affect on the frequency stability of power system. Power system will suffer great challenge if nuclear units do not participate in PFR, so study on the PFR characteristics of nuclear units has becoming a pressing issue. A detailed, nonlinear, time-varying dynamic mathematical model of a whole pressurized water reactor (PWR) nuclear power plant has been established in the present study. The simulation platform for studying on the PFR characteristics of nuclear units has been developed according to the model established. Using the simulation platform, the operation and control mode of PWR nuclear units participating in PFR of power system is simulated and studied. The simulations results show that PWR nuclear units are feasible in participating in PFR from safety and economy by adopting the operation and control mode presented in the study, which can contribute to the practical operation of power system.     

Upgrade of plasma density feedback control systemin HT-7 tokamak

The HT-7 is a superconducting tokamak in China used to make researches on the controlled nuclear fusion as a national project for the fusion research. The plasma density feedback control subsystem is the one of the subsystems of the distributed control system in HT-7 tokamak (HT7DCS). The main function of the subsystem is to control the plasma density on real-time. For this reason, the real-time capability and good stability are the most significant factors, which will influence the control results. Since the former plasma density feedback control system (FPDFCS) based on Windows operation system could not fulfill such requirements well, a new subsystem has to be developed. The paper describes the upgrade of the plasma density feedback control system (UPDFCS), based on the dual operation system (Windows and Linux), in detail.     

In-cell maintenance by manipulator arm with 3D workspace information recreated by laser rangefinder

We developed a remote control system for maintenance of in-cell type fuel fabrication equipment. The system display recreated three-dimensional information of the workspace from data obtained by laser rangefinder and conventional cameras. It has allowed us to operate a manipulator arm remotely with several control modes. In order to evaluate the effectiveness and usefulness of developed system, we implemented remote handling experiments using mock up equipment. Performance was compared for remote operation conducted using several different display and operation modes. We confirmed that the system is able to maintain in-cell fuel fabrication equipment in each display and operation mode. Times required to complete the remote operations were collected and compared in each mode. It was observed that integration of 3D information from the laser rangefinder reduced operation time and reinforced visual information during remote operation.     

基于Windows CE的HIRFL-CSR前端控制系统设计与实现

介绍了一个基于Windows CE的嵌入式分布控制系统,系统基于以太网和现场总线连接,节点用嵌入式平板计算机实现。给出了系统的硬件组成和软件设计,该系统已应用于HIRFL-CSR前端控制系统。     

Simulation and test results of low-order band harmonic filters to decrease resonance phenomenon in the KSTAR power system

The superconducting magnet power supply which supplies superconducting magnet coil (SC) with the power to generate plasma during a KSTAR experiment for nuclear fusion research is a nonlinear load. Characteristic harmonics are generally produced since it converts AC to DC using 6 or 12 pulsed operation. However, non-characteristic harmonics or inter-harmonics are generated according to output control characteristics. Also, 95% out of the power generated from superconducting magnet coil is reactive power. Therefore, harmonic and reactive power occurring during operation have some bad influences such as voltage drop, voltage distortion and decrease in power factor on the KSTAR power system, and reactive power compensator (RPC) & harmonic filter (HF) system which is able to compensate harmonic and reactive power at the same time was established and has been operated [1]. However, out of non-characteristic harmonics and inter-harmonics caused by output control characteristics of superconducting magnet power supply, the more compensation volume of the RPC & HF system increases, the more voltage distortion with harmonic expansion is caused by harmonics in a low-order band due to the parallel resonance in a low-order band between the KSTAR power system and the RPC & HF system. As a result, it has serious effect on the injection capacity restriction of the RPC & HF system, the unstable operation control of superconducting magnet coil, and the operation of main cooling facilities. This paper presents reasons of the resonance phenomenon of the KSTAR power system and suggests a design plan of additional facilities for stable operation of the KSTAR power system, and proves their effects through the simulation and test results.     

HFETR控制保护系统的运行和改进

HFETR 的控制保护系统,经运行、设计和检修人员的共同努力,经受了十年运行的考验。本文介绍了控制保护系统十年运行状况以及针对实际运行中出现的问题所做的必要改进。这些改进使控制保护系统各设备更完善,操作更简便,可为该系统的今后设计提供点滴借鉴。     

临界装置数字化人机界面的分析与实现

为了建立信息化程度高、扩展灵活、适合操纵人员需要的全新数字化系统,将数字化人机界面（HMI）技术应用于临界装置控制系统中。通过对临界装置数字化人机界面的分析,与人因工程原则相适应,描述了符合临界装置运行习惯和任务处理特点的数字化运行理念,最终实现了临界装置的数字化控制监测保护系统,并投入稳定运行。