核电应急柴油发电机组机外压缩空气系统设计及抗震计算

应急柴油发电机组（EDG）是核电厂失去正常电源后向厂内安全系统和其他指定的重要安全设备紧急提供可靠电力,以保证在假设突发事件后能将电厂维持在安全状态的厂内自备应急发电系统。压缩空气起动系统的作用是使应急柴油发电机组从静止状态进入到工作状态。压缩空气起动系统的性能决定着应急柴油发电机组能否及快速的投入运用。机外压缩空气系统是压缩空气起动系统的重要组成部分,负责向柴油机起动装置提供满足要求的压缩空气。本文介绍了某核电厂应急柴油发电机组项目中,机外压缩空气系统的设计和型式试验,并运用抗震计算的方法对系统的抗震性能进行了验证。     

基于AMESim的某柴油发电机组启动性能仿真分析

基于某柴油发电机组启动系统在AMESim软件平台搭建其系统仿真模型,并利用试验数据进行模型标定。在此基础上进行启动马达转矩、首次喷油转速、机组惯量、升速率（调速器参数）等因素对柴油发电机组启动时间等参数影响的研究。研究结果表明：启动马达转矩和首次喷油转速仅影响启动初始阶段,机组惯量对启动时间影响显著,减小机组惯量至关重要。此研究方法和结果可为启动系统装置部件匹配和选型提供指导。     

船用柴油发电机组设计

介绍了6DK28e发电机组国产化设计过程,重点介绍了柴油发电机组滑油系统、燃油系统、冷却水系统、起动空气系统、进排气系统的设计。台架试验和实船试验表明:各项技术指标达到了专利方和技术规格书的要求,满足船舶辅机使用条件;目前该船用柴油发电机组已经出产了32台套,并进入实船应用。     

DSG 821型柴油发电机组操纵和监控装置

<正> DSG 821型带微处理机的操纵和监控装置是 AEG-Telefunken 设计的,用以监控空气起动或电起动柴油发电机组。该装置具有为起动(手操纵或自动操纵的)、监控和柴油发电机组运转不正常的情况下停车所需要的全套开关和监控功能。     

配蓄能惯量质量的柴油发电机组设计和试验研究

简述了国内外配蓄能惯量质量的柴油发电机组的基本情况和设计经验,提出了该类机组的设计方法和应注意的问题,采用TBD234V8柴油机匹配机组开展实机试验,给出了部分对比试验结果并进行了分析。     

带脉冲负荷发电机组的起动及瞬态性能

计算研究了带有大储能飞轮的某型号柴油发电机组采用电机起动和高压分配气起动两种冷起动方案,对两种方案进行了比较,并分析了不同的高压气体压力对冷起动过程的影响.计算了发电机组在正弦波载荷、矩形波载荷、三角波载荷等动态负荷下的瞬态工作性能,分析了不同载荷周期和峰值对瞬态工作性能的影响.通过计算研究,对脉冲发电机组的脉冲工作方式、起动方案提供结论性的意见.     

核应急柴油发电机组的设计

核电站的安全是关系到民生和国际影响的重大政治问题,因此避免发生事故是安全设计的重要环节,其中核应急柴油发电机组作为备用电源是安全系统中的重要环节之一。当核电站受到外界环境因素影响时（地震、外电网失电等）,应急柴油机组必须快速启动并且在规定时间内按照加载程序带载,为安全设备提供电源,保证核电站的安全。我们将重点论述柴油发电机组、润滑油、燃油、冷却水、空气起动、进排气系统的设计和辅助系统设备的分级。     

核电应急柴油发电机组滑油低压保护停机控制的设计优化

通过采用转速分段及增加短延时的改进方法,对当前核电应急柴油发电机组滑油低压保护停机控制设计进行了优化。经论证与试验表明:优化后的保护停机控制对机组起动及运行过程均起到了保护作用,同时确保了滑油压力的正常建立,避免了机组因受外部因素影响导致应急保护停机误动作,提高了机组起动的可靠性。该优化方案已经在核电厂应急柴油发电机组控制系统中得到广泛应用。     

浅谈青藏高原发电车柴油发电机组及附属装置

针对青藏铁路特殊的气候环境特点,在吸取成熟设计及运用经验的基础上,研制了青藏高原发电车柴油发电机组及附属装置。详细介绍了设计策略、柴油机及发电机的选型以及附属系统的设计特点。实际应用表明:所设计的发电车柴油发电机组及附属装置完全能够满足青藏铁路的运用要求。     

高原(严寒)柴油动力装备燃油加热低温起动系统研制

针对高原低温环境下军用柴油动力装备低温起动难和蓄电池保温能力差等实际问题,设计了柴油动力装备燃油低温起动系统,该系统解决了发动机低温起动难的问题,并实现了起动后缸体快速升温和蓄电池保温、驾驶室除霜取暖等功能.按照军用标准在-41℃的环境中进行了整车低温起动试验.试验证明该装置符合国家军用标准对低温起动的要求.     

小容量同步发电机组谐波特性分析

相对于大电网,小容量系统惯性小、承受扰动的能力弱,因此小容量同步发电机组受谐波影响较大。为揭示谐波的作用机理,从注入谐波电流后电机内部的电磁关系变化人手,描述了谐波电流形成的旋转磁场与基波磁场叠加后的形态。进而分析了谐波电流对发电机输出电压的影响,并运用瞬时功率理论推导了谐波转矩的解析式,指出了发电机组转轴机械振动的原因。进行了柴油发电机组带非线性负载的实验,观察了机组在谐波影响下的运行状态,实验结果与理论分析一致。     

高原地区柴油机进气系统改造与性能分析

通过对Ｓ１９５柴油机进气管内压力波形的测试,分析了进气管长度对充气性能的影响。论证了不同海拔下最佳进气管长度相等的规律,确定了适宜各种工况的进气管长度。在对最佳进气管转速适应性试验和滤清器对进气管惯性效应影响分析的基础上,肯定了进气管改造对改善高原地区柴油机工作性能的积极意义。     

Wind-diesel hybrid power system integration in the south Algeria

In most isolated sites situated in south Algeria, the diesel generators are the major source of electrical energy. Indeed, the power supply of these remote regions still poses order problems (technical, economical and ecological). The electricity produced with the help of diesel generators is very expensive and responsible for CO₂ emission. These isolated sites have significant wind energy potential. Hence, the use of twinning wind-diesel is widely recommended, especially to reduce operating deficits. The objective of this paper is to study the global modeling of a hybrid system which compounds wind turbine generator, diesel generator and storage system. This model is based on the control strategy to optimize the functioning of the hybrid system and to consolidate the gains to provide proper management of energy sources (wind, diesel, battery) depending on the load curve of the proposed site. The management is controlled by a controller which ensures the opening/closing of different power switches according to meteorological conditions (wind speed, air mass, temperature, etc).     

Wind turbine dynamic response?difference between connection to large utility network and isolated diesel micro-grid

The difference in dynamic behaviour of wind turbines connected to different size networks is analysed for synchronous and induction generators. Modal analysis has been applied to equivalent mechanical models of the wind turbine generator and the grid connection to show the difference in dynamics for a wind turbine generator connected to a large (interconnected) utility network or an (isolated) diesel micro-grid. Frequency domain analysis of these models has been used to quantify the effect of system parameters, such as enhanced drive train damping, diesel governor action and generator slip, on dynamic interaction. It has been shown that for wind turbines connected to a large grid an induction generator can reduce dynamic interaction. In contrast, for an isolated diesel micro-grid the diesel governor response and the compliance of the diesel generator dominate the system's dynamics, and the choice of either generator option for the wind turbine is dictated by other factors.     

惯性增压管件优选的探讨

本文按试验结果对单缸柴油机惯性增压管件的影响进行了分析，提出了优选途径，并对进气管和空气滤清器的配套作了分析．     

振荡水柱波浪能发电装置中负载电路对其性能的影响

基于振荡水柱装置空气透平发电机组的结构,建立振荡水柱装置空气透平发电机组的数学模型。通过试验测试和计算机模拟,研究负载电路对振荡水柱装置发电性能的影响。结果表明,惯性系数越大,输出电流的波动性越小。通过改变转动惯量或电阻可降低输出电流的波动性,从而降低输出电流对蓄电池的冲击;然而增加电阻会降低输出功率。此外,结果表明,加入合适的电感既可改善输出电流的波动性,也可提升输出功率。     

Optimum sizing of battery-integrated diesel generator for remote electrification through design-space approach

Battery integrated diesel generation is one of the options for decentralized power production. They are particularly suitable for loads with significant variation in the daily demand. A methodology for the optimum sizing of integrated system involving diesel generator and battery bank for an isolated electrical power generation is proposed in this paper. The proposed methodology is based on the design-space approach involving a time series simulation of the entire system. Based on the proposed approach, for a given load demand, characteristics of the diesel generator and battery bank, a sizing curve is identified on the diesel generator rating vs. storage capacity diagram. The sizing curve helps in identifying all possible feasible system configurations or the design space. Based on the minimum capital cost and the minimum operating cost of the system, the Pareto optimum curve is identified on the system-sizing curve. Optimum system configuration is identified based on the minimum cost of energy through optimal dispatch strategy. Two operating strategies, involving continuous and intermittent operation of the diesel generator are studied and compared. Effect of the load profile on the system sizing is also presented in this paper.     

某大功率柴油机推进动力模块动态特性研究

以某型16缸大功率增压柴油机动力模块为研究对象,采用AMESim软件建立了柴油机动力模块的仿真模型,并通过试验数据对仿真模型进行了标定.基于该模型对柴油机推进动力模块加速过程中模块转速与设定值的偏差,以及瞬态调速过程中模块带大惯量运行的规律以及喷油控制优化进行了仿真研究.研究结果表明:减小涡轮增压器惯量可以优化柴油机加...     

Dynamics and stability of a hybrid wind-diesel power system

Dynamic system analysis is carried out on an isolated electric power system consisting of a wind turbine generator (WTG) and a diesel engine generator (DG). The 150 kW wind turbine generator is operated in parallel with the diesel generator to serve an average load of 350 kW. A comprehensive digital computer model of a hybrid wind-diesel power generation system, including the diesel and wind power dynamics for stability evaluation, is developed. The dynamic performance of the power system and its control logic are studied, using the time domain solution approach. A systematic method of choosing the gain parameter of the wind turbine generator pitch control by the second method of Lyapunov that guarantees stability is presented. The response of the power system with the optimal gain setting to the random load changes has been studied. Analysis of stability has further been explored using the eigenvalue sensitivity technique.     

1100 kW柴油发电机组电控空气悬架系统设计

针对小水线面双体科考船1100 kW已有的柴油发电机组气囊隔振系统仅对气囊充气进行控制,可能造成隔振装置姿态偏移过大、损坏橡胶接管及金属波纹管等设备的问题,根据气囊充放气控制原理,设计一套电控空气悬架系统,依据隔振装置姿态自动对气囊进行充放气.试验验证表明,所设计的电控空气悬架系统成功实现了对气囊的自动充放气控制,能够...