| 1. | Valve opening chart at load rejection
甩负荷阀门开启阀 |
| 2. | Discussion about the overspeed problem of reheat turbo - generator set at load rejection
关于再热式汽轮发电机组甩负荷超速问题的讨论 |
| 3. | Abstract : this paper apply asme & quot; feed water pump npsh analysis during load rejection & quot; theory to check bfp npsh of zhuhai power plant 700mw units in the condition of vwo and also confirm the calculating result by load rejection test
文摘:利用asme的“甩负荷时给水泵汽蚀余量的分析”理论，校核了珠海电厂容量700mw机组在最恶劣工况即阀全开跳机工况时的给水泵汽蚀余量，并在甩负荷时，进行了试验验证。 |
| 4. | For the sake of the research about hydroelectric interfere among machines , the article utilized the simulink in matlab as simulating tool , meanwhile established the simulating model about two high head diversion water turbines regulation system in violent fluctuating pressure sharing one head race tunnel and surge tank and one penstock . then calculated the load rejection transition process by means of the real parameters of a hydro power station , analysed the interfere of hydro power station safety and stable nenring brought by hydroelectric interfere and put forward a series of measures that lightening the hydroelectric interfere
为了研究机组间的水力干扰，本文采用matlab下的simulink作为仿真工具，建立共用有压引水管道、调压井、压力主管的两台高水头引水式水轮机调节系统大波动时的仿真模型，引入实际电站的参数，对甩负荷过渡过程进行了仿真计算，分析水力干扰对电站安全、稳定运行所造成的影响，并提出了一系列减轻水力干扰的措施。 |
| 5. | This paper establishes the linear model of hydro - turbine and deducts its transfer coefficients . then the optimized operation parameters are gained in the frequency disturbance and load rejection simulation . through comparing dynamically , this paper analyses the impact on its dynamic performance if some governing system parameter changes
在研究小波动情形时,即系统在稳定工作工况点附近小瞬变时,可以把非线性系统进行线性化处理;本文建立了水轮机调节系统的线性化模型,推导了其中的传递系数;对水轮机调节系统的频率扰动和机组突甩负荷工况进行了仿真试验,整定了最佳调节参数;通过动态比较,分析了调节系统参数改变对其动态性能的影响。 |
| 6. | Abstract : according to the cause and the damage of the feed water pump cavitation resulting from the turbine ' s load rejection , this paper analyzes the condition about presenting cavitation by calculating the largest difference of the pump inlet ' s cavitation residue in the transient process of the deacrator and proposes the measures about presenting cavitation
文摘:根据汽机甩负荷造成给水泵汽蚀的原因及危害，从计算除氧器暂态过程中给水泵入口汽蚀余量的最大降落值入手，分析防止给水泵汽蚀的条件，提出预防措施。 |
| 7. | According to the cause and the damage of the feed water pump cavitation resulting from the turbine ' s load rejection , this paper analyzes the condition about presenting cavitation by calculating the largest difference of the pump inlet ' s cavitation residue in the transient process of the deacrator and proposes the measures about presenting cavitation
摘要根据汽机甩负荷造成给水泵汽蚀的原因及危害，从计算除氧器暂态过程中给水泵入口汽蚀余量的最大降落值入手，分析防止给水泵汽蚀的条件，提出预防措施。 |
| 8. | Discussing the way to develop the nonlinear mathematic model of the governor in the hydroelectrical simulation system and improve it , the phased analyzing / fitting method is introduced in modeling process to deduce the mathematical models of governor start - up and load rejection so as to solve the problems of overspeed starting and nonconvergent vibration during load rejection
在建模过程中采用分段解析、拟和的方法，推导出了水电仿真中水机调速器开机和甩负荷过程数学模型，解决水机调速器中开机过速和甩负荷过程中振荡不收敛问题。 |
