The induction motor tracking control based on passivity principle is analyzed in case of general unknown time-varying load torque and rotor resistance.
研究了负载转矩和转子电阻在一般的未知时变情形时对异步电动机期望时变电磁转矩的渐近跟踪控制问题。
The characteristic parameters of AE which were defined based on vibration analysis under varying load, rotating speed and damage type were also studied.
定义了基于振动分析的声发射信号特征参数,研究了各特征参数随转速、载荷和损伤类型的变化规律。
Similarly, varying load conditions, as the unit load required to respond as quickly as possible, to stress the extent permitted margin shorten response time.
同样,变负荷工况下,为使机组尽快响应负荷需要,要在应力裕度允许的范围内缩短响应时间。
An integrated model and its solution for the coordinated optimization problem considering time-varying load demand in distribution systems are proposed in this paper.
针对负荷变化时的配电网综合优化问题,提出了完整的模型及求解算法。
With the consideration of the varying load of power system, a complete mathematical representation of dynamic reactive power optimization and its calculation method are presented.
根据电力系统实际运行中负荷不断变化的情况,提出了动态无功优化问题的完整数学描述和计算方法。
Based on the vibration analysis of AE signals under varying load and rotating speed, the patterns of damage vibration of rolling element bearings under varying load and rotating speed were researched.
对各典型状态滚动轴承在不同转速和载荷下的声发射信号进行了振动分析,研究了滚动轴承的损伤振动随转速和载荷的变化规律。
The main performance bottleneck is the application server machine for various test runs with varying amounts of load.
主要的性能瓶颈是程序服务器机器,它在不同的运行负荷下运行不同的测试。
A few tests were also run to assess the impact on total load time when varying the number of nodes.
我们还执行了一些测试,评估节点数量变化对总加载时间的影响。
For peak load unit, its process model and structure parameters have obviously fast time-varying characteristic while load changing.
对于调峰机组,当负荷变化时机组的过程模型甚至结构参数都具有明显的快时变特性。
The method to determine optimum scheme for operation of chiller system is studied when the load is varying, and method for annual energy analysis of a chiller system is put forward.
探讨了负荷变化时制冷机系统最优运行方案的确定方法,在此基础上提出了一种对制冷机系统进行全年能耗分析的方法。
Results show that the proposed algorithm exhibits satisfying control effects even for large load varying ranges.
结果表明:在大范围的负荷变化时,控制系统仍具有满意的控制效果。
With the change of environment and indoor heat load, the refrigeration and air-conditioning system almost operate at varying condition.
随着环境和室内热负荷的变化,制冷空调系统通常是在变工况条件下运行。
It is difficult to have good performance for chain boiler combustion control system due to large delay time, varying coal's quality and steam load.
大纯时延、煤种多变和蒸汽负荷频繁变化是链条炉难以进行良好燃烧控制的原因。
Single exponent smoothness model fully embodies the characters of trend and cycle of the continuous varying power load, but it can not think about the effect of the weather elements carefully.
一次指数平滑模型充分体现了负荷连续变化的趋势性和周期性,但是没有详细考虑天气因素对负荷的影响。
Moreover, fuzzy logic deals with the factors which have great effect to load varying, such as air temperature and holidays, etc.
而模糊逻辑则处理对负荷变化影响较大的气温、节假日等因素。
In this paper, the varying rules of the linear load distribution and the largest stress along the contacting lines are analyzed based on the EHL theory.
本文从弹流角度分析了修形前后线载荷分布及最大压力沿接触线的变化规律。
Secondly, the curves of the cooling load per unit heat-transfer area varying with the coefficient of performance are investigated based on the fundamental optimum relation.
其次,从基本优化关系式出发,对单位面积制冷负载随制冷系数变化的曲线做详细的研究。
A table containing values of propeller load can be used to compare propellers of varying diameter and pitch, as to the load that they impose on the engine.
的表载列螺旋桨负荷值可用于比较不同直径和可调桨,以他们的负载对发动机。
The current corrective control models do not take load stochastic characteristic into consideration though load is actually varying during generator rescheduling.
实际上,任意节点的负荷都具有随机性,在制定校正控制措施时应考虑这种随机性。
An algorithm produces a specific sequence of pulses of varying width such that the voltage or current delivered to the load from the system plant closely resembles a critical damped step response.
一种算法产生具体的脉冲序列,该脉冲序列改变宽度使得从系统设备传输给负载的电压或电流非常类似于临界阻尼阶跃响应。
It is analyzed under time-varying side slip angle and constant wheel load.
在不变载荷下以时变侧偏角为激励,对轮胎模型进行了计算。
Through surveying overhead monorail load in varying state, it provides raliable basis for roadway support design and hanging design of overhead monorail.
介绍了锚杆悬吊单轨条件下,对单轨吊车载荷进行现场测定的一种方法。
The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
采煤机截齿截割煤体时,截齿承受随时间而变化的动载荷。
The classification and synthesis are the effective ways to solve the time-varying problem in electrical load, as well as the key link in load modeling utilization.
分类与综合是解决负荷时变性问题的有效途径,是负荷建模实用化的关键。
Nonlinearly bending problems, of circular thin plates with linearly varying thickness under central concentrated load are discussed.
本文研究了厚度按线性规律变化的圆薄板在中心集中力作用下的非线性弯曲问题。
The power system load flow frequency varying with loads can been calculated by dynamic load flow. Through it, state and tendency of power system are shown.
动态潮流可以提供系统潮流分布和频率随负荷变化的大体趋势,显示系统状态的走向,为系统态势分势提供依据。
The results show that the tension bearing capacity of DX pile is apparently higher than that of the pile with constant section, and the curve of load-displacement of DX pile is slowly varying.
结果表明,DX桩的抗拔承载力明显大于同等条件下的等截面桩,且DX桩的荷载-上拔位移关系呈缓变形;
A new algorithm is proposed in the paper for time-varying reactive power optimization according to the load variation.
根据电力系统实际运行中负荷不断变化的情况,提出了一种新的电力系统时变无功优化算法。
The volatility of load time series is analyzed, and the short-term load forecasting based on SV(Stochastic Volatility) models is presented with the consideration of the time-varying characteristics.
研究了负荷时间序列波动性,考虑方差时变特征,提出了基于随机波动(SV)模型的短期负荷预测方法。
The volatility of load time series is analyzed, and the short-term load forecasting based on SV(Stochastic Volatility) models is presented with the consideration of the time-varying characteristics.
研究了负荷时间序列波动性,考虑方差时变特征,提出了基于随机波动(SV)模型的短期负荷预测方法。
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