共查询到20条相似文献,搜索用时 31 毫秒
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大功率脉冲磁场电源系统 总被引:1,自引:0,他引:1
描述了中国环流器2号A(HL-2A)装置磁场电源系统,介绍了电源的控制系统和实验结果。磁场电源总脉冲容量近250 MVA,一次放电脉冲释能1 300 MJ,其中单套电源的最高直流电压为3510 V,最大电流为45 kA,均以脉冲方式运行,脉冲时间5 s,重复周期10 min。电源主回路主要由飞轮脉冲发电机、晶闸管变流设备、硅整流器等组成。采用了硅整流器直接并联、电流平衡、恒角移相控制、整流器全关断检测、先进的监控和脉冲高压强流检测等技术措施。实验表明,磁场电源的性能指标能够满足装置实验的要求。 相似文献
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Nuclear-Hydrogen Power 总被引:1,自引:0,他引:1
N. N. Ponomarev-Stepnoi 《Atomic Energy》2004,96(6):375-385
Methods for obtaining hydrogen and using hydrogen in power engineering, transportation, and industry, and methods for handling hydrogen (storage and safety) are examined.The concept of nuclear-hydrogen power – using the energy generated by nuclear reactors to produce hydrogen and using this hydrogen in power engineering and industry – is presented. The development of nuclear-hydrogen power will contribute to global energy security and decrease the demand for fuels which affect climate change on our planet.The technologies needed for nuclear-hydrogen power to become a reality – high-temperature nuclear reactors, apparatus for the efficient production of hydrogen from water, hydrogen fuel cells, chemothermal converters, and hydrogen storage and shipment technology – are analyzed. 相似文献
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核电站功率控制的问题探讨 总被引:1,自引:0,他引:1
核电站的功率控制是核电站的重要方面。从澄清各种功率的说法出发,详细分析说明了核电站各种功率的定义、表达式及相关显示,进而分析了各种功率的准确性问题。通过清晰几个功率的说法,较全面地分析了核电站如何在保证核安全的情况下,尽量提高热功率进而提高发电量的方法,对核电站的持续改进有所帮助。 相似文献
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本文介绍了一种创新的核功率表,即用热功率自动校准的核功率表。该表允许自动校准的核功率偏差为±30%额定功率值,校准后的核功率信号与热功率信号的偏差小于1%这完全满足了核反应堆校准核功率偏差的要求和核反应堆控制与保护系统对核功率信号的要求,首次较好地解决了长期存在的反应堆核功率信号的准确性与快速响应之矛盾。 相似文献
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本文介绍了采用低维等效原理和综合法技术,研制成功的压水堆轴向功率偏移控制和负荷跟踪计算程序。该程序为我国秦山二期2×600MW 核电厂反应堆的核设计提供了急需的计算手段。程序的计算精度满足工程设计的要求。本文还利用此程序完成了该反应堆负荷跟踪计算和各种典型的运行功率瞬态分析,初步确定了该反应堆的运行控制方式和轴向功率偏移的安全保护定值。 相似文献
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This paper will review the evolution of high power klystrons and their applications in supplying rf energy for linear accelerators. Other types of possible rf sources were considered for SLAC, and the reasons for the selection of klystrons will be given. A brief review of klystron types in use for various accelerators will also be given, but the emphasis will be on the work done by Stanford and its subcontractors in developing klystrons capable of achieving peak powers in excess of 20 MW and average powers of 20 kW for use with the two-mile Stanford linear accelerator. 相似文献
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本文简要介绍了在脉冲堆零功率实验装置上,利用“中子通量自动测量装置”进行的功率分布、中子通量不均匀系数和绝对功率的测量工作。 相似文献
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针对典型的大功率整流电源,提出了一种基于数字控制的设计方案。通过对大功率中性束注入器离子源灯丝电源的方案设计和实验结果,验证了数字控制方案的可行性与优越性。由于数字控制方案的应用,使得灯丝电源的设计更加智能化和简单化,为相关的应用场合提供了参考。 相似文献
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The safety of the floating nuclear power plant is closely related to the merits of the reactor power supply system. In order to improve the safety factor of floating nuclear power plant, it is necessary to analyze the reactor power supply system. In this paper, the configuration of the reactor power supply system of the floating nuclear power plant is analyzed, and the auxiliary power system and nuclear emergency power system under two schemes are compared. The results show that the optimized scheme 2 is better than scheme 1 in reliability and safety, and scheme 2 is more economical. The optimization scheme proposed in this paper can provide a direction for the design of the reactor power supply system of the subsequent nuclear powered ships and has a strong reference significance. 相似文献
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K. SHIMADA T. TERAKADO K. YAMAUCHI M. MATSUKAWA O. BAULAIGUE R. COLETTI A. COLETTI L. NOVELLO 《等离子体科学和技术》2013,15(2):184-187
This paper describes an asymmetric control method for the firing angle and a start/stop timing shift control of four thyristor converters called "Booster PS" to minimize the reactive power fluctuation during plasma initiation in JT-60SA. From the simulation using the "PSCAD/EMTDC" code, it is found that these control methods can drastically reduce the reac- tive power induced by the four units of the "Booster PS". In addition, the voltage fluctuation of the motor-generator connected to the "Booster PS" is expected to be suppressed. This can also contribute to achieve stable control of the JT-60SA magnet power supplies. 相似文献
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Experiments on the start-up and formation of spherical tokamak plasmas by electroncy clotron heating alone without ohmic heating and electrode discharge assisted electron cyclotron wave current start-up will be carried out on the SUNIST (Sino United Spherical Tokamak) device.The 2.45 GHz/100 kW/30 ms microwave power system and 1000 V/50 A power supply for electrode discharge are ready for experiments with non-inductive current drive. 相似文献
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本文叙述了核电站和燃煤电站的相对经济性指数与技术经济参数的定量关系。讨论了我国现有条件下核电站相对经济性指标及其实现的途径。 相似文献
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本文应用故障树分析方法,计算了秦山核电厂自备应急电源系统的瞬时和稳态无效度,并对秦山核电厂自备应急电源系统的设计进行了评价。 相似文献