| 1. | The improved load performance of the units could be counted into consideration during the peak - load regulation 这些机组目前的调峰性能指标,可作为调峰运行调度的参考。 |
| 2. | It is an important matter that how to select agc unit to participate load regulation economically and safely in electricity market 在电力市场中,如何以最经济、安全的方式调度agc机组是辅助服务的重要内容之一。 |
| 3. | More thermal power units will be used as peak load regulation units because many hydropower and nuclear power plants have put into production in recent decade , and three gorges hydropower plant is being constructed 摘要近十年来,新建了很多水力发电厂、核电站,三峡水力发电厂正在建设,将有更多的火力发电机组成为调峰机组。 |
| 4. | By the analysis of the present electro - market in handan , this dissertation applies the method of gray system to forecast the electro - prospect in this region , and indicates the existing potential of load regulation 论文在对邯郸地区用电市场现状分析的基础上,运用灰色预测方法预测出该地区的供用电前景,并指出存在的调荷潜力。 |
| 5. | If the urban gas load can be forecasted accurately , the most essential designing parameters will be provided for the confirmation of the gas storage facilities for peak - load regulations and the most reasonable dispatch of urban gas 摘要准确地预测城市燃气用气负荷量,才能为调峰储气设施的确定及城市燃气优化调度提供最基本的设计参数。 |
| 6. | In order to improve the peak load regulation performance of boiler and decrease its consumption of oil , the burners were retrofitted by using adjustable horizontal concentrated - diluted pulverized coal burners combustion technology and small oil gun ignator 摘要为提高锅炉低负荷调峰性能和降低锅炉耗油量,利用可调水平浓淡燃烧技术和小油枪点火装置,对燃烧器进行了改造。 |
| 7. | The differences between small - scale thermal power units and small - scale combined heat and power generating units are explained according to domestic energy policies . the advantages of co - production of heat and power are analyzed . the social and economic profits due to co - production of heat and power in the fields of energy saving , loss decreasing , environment protection and peak - valley power load regulation are discussed . the check index of thermal power plants is explained and advice on improving construction and operation of small - scale heating and power plants is suggested with consideration of domestic practice 依据我国的能源政策,阐述了小热电机组与小火电机组的区别;分析了热电联产的优越性;论述了热电联产在节能降耗、环境保护及电网调峰中产生的社会效益和经济效益,并结合我国的实际,对热电厂的考核指标进行了探讨,对改善小热电的建设与运行提出了建议。 |
| 8. | There are many plants that have the character of time - varying , large delay , large inertia in the process of production of modern power station such as the superheated steam temperature , the reheated steam temperature , the water treatment of boiler and the load regulation . some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control . it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control , optimal control , decoupling control and predictive control . and these control systems have large calculation and bad character of real time in general . these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station . now the generator units are developing towards large capacity and high parameters . many new kinds of generating electricity means are coming into being . the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict . the new control means are in bad need to control them effectively 现代电站的生产过程中存在过热汽温、再热汽温、锅炉水处理、负荷调节等许多大迟延、大滞后、特性时变的对象,它们中有些还是具有强非线性特性的对象或多变量耦合系统,采用常规的pid控制手段很难取得良好的控制效果。若应用现代控制理论中的自适应控制、最优控制、解耦控制、预测控制等控制手段,则需要建立被控对象的数学模型,而且往往控制系统的计算量大、实时性差。这些缺点使其很难满足实际生产过程的需要从而极大地限制了其在现代电站中的应用。 |
| 9. | Based on the advanced technology and instruments of visible monitoring system of section temperature field in furnace , energy saving & environmental protection test vehicle and 3 - dimension furnace computational simulation , test and study are carried out on stability of peak - load regulation and optimization of operation of large unit 摘要利用炉膛断面温度场可视化监测系统、节能环保车、炉内三维数值模拟等先进的技术和设备对大机组调峰稳定性和运行方式优化进行试验和理论研究。 |
| 10. | But often what is not obvious when reading a manufacturer ' s data sheet is how the initial accuracy of the device is affected by other key device parameters such as line regulation , load regulation , initial voltage error , output voltage temperature coefficient ( tc ) , output voltage noise , turn - on settling time , thermal hyste - resis , quiescent supply current , and long - term stability 但,人们阅读厂家的数据手册时,因受诸如(电源电压)线性调整率、负载调整率、初始电压误差、输出电压温度系数tc 、热迟滞(系数) 、静态电流和长期稳定度等参数的影响而使初始精度往往不明显。 |