Accurate mid-long term load forecasting can improve the economic and social benefits of power system.
准确的中长期负荷预测能够提高电力系统的经济效益和社会效益。
In this paper , two grey prediction models which are applied to long term load forecast in regional power grid planning are discussed.
本文将灰色预测中的数列预测模型和系统预测模型应用于农村电力网规划中的用电需求预测。
Meanwhile, it is obtained the combined model of mid-long term load forecast based on the 1-order and 2-order improved forecast effectiveness optimum principle.
给出了基于一阶和二阶改进预测有效度最优级原则的中长期负荷组合预测模型。
Case study shows that this method is more accurate and faster than single grey prediction and single neural network method. It is a useful method for long term load forecasting.
最后采用我国某省年用电量的预测的算例表明该方法的预测精度优于单一的灰色预测和单一的神经网络预测方法,为电力系统长期负荷预测提供了一种有用的方法。
Because the medium and long term load forecasting in distribution network is affected by many uncertain factors, up to now, no methods can obtain the satisfying forecasting results at all instances.
由于配电网中长期负荷预测,会受到很多不确定因素的影响。因此,到目前为止,还没有哪一种方法能保证在任何情况下都能获得满意的预测结果。
This can have serious short - and long-term consequences, such as an increase in viral load and a greater risk of developing drug resistance.
这将产生严重的短期和长期的后果,例如病毒载量增加,增加耐药性出现的风险。
Based upon finite element simulation analysis, load tests and long-term observation, a detection and evaluation system for old steel bridge safety was developed in this thesis.
本文以桥梁仿真分析技术为主线,以整治效果为目标,以荷载试验和长期观测为检验手段,建立了既有钢桥裂纹安全检测评估系统。
If the first gear pump operation, or long-term idle after use, preferably in small load or no-load circumstances Xianpao One hour.
齿轮泵若是第一次运行,或长期闲置后再使用,最好在空载或小负荷情况下先跑合一小时左右。
This paper introduces a new method of the middle or long term electric load.
本文提出了一种新的中长期电力负荷预测方法。
In application of neural networks based short-term load forecasting model, the main problems are over many training samples, thus resulting long training time and slow convergence speed.
在神经网络负荷预测实际应用中,突出的问题是训练样本大、训练时间长、收敛速度慢。
Conservative Treatment of Thoracolumbar Burst Fractures: a Long-term Follow-up Results With Special Reference to the Load Sharing Classification.
保守治疗胸腰椎爆裂骨折:特别参照负载分配分类的一种长期随访结果。
This test method is to simulate everyday use, the sofa on the long-term repeatability of the load bearing capacity.
这一试验方法是模拟日常使用情况下,沙发对长期重复性载荷的承受能力。
Because of the long-term action of load or abrupt disaster under the term of usage, the concrete structure will appear the safety problem and endanger the property and the security of people's life.
在使用期限内,由于长期的荷载作用或突然的灾害,混凝土结构会出现安全隐患,严重的会危及人的生命财产安全。
Objective Through a long-term training with incremental load to establish bone mass loss animal model.
目的:建立长期递增负荷运动致骨量降低动物模型。
On the load increased, but not sensitive to changes in friction coefficient, so heavy, the friction coefficient is extremely small, and the same long-term accuracy can have long-term mechanical life.
对负荷增大,但磨擦系数无敏感变化,因此重负荷下,磨擦系数极小,并且长期保持精度不变,可得机械使用寿命长期保持。
The creep and shrinkage of concrete is the major problem that leads to the enlargement of crack width in concrete structures, under the action of long-term load.
混凝土的徐变和收缩是长期荷载作用下混凝土结构裂缝宽度扩大的主要影响因素。
Because the water balance production link is not recognized and regarded fully, long - term full load or even overload operation of coal water treatment plant are caused in production.
实际生产中,由于水平衡的生产环节未被充分认识和重视,导致生产中出现剩余氨水处理装置长期满负荷甚至超负荷运行的情况。
In this paper, the application of artificial neural network (ANN) for short - term load forecasting and mid - long - term load forecasting are analyzed and compared.
本文分别对人工神经网络(ANN)在短期负荷预测和中长期负荷预测中的应用进行了分析、对比。
Load structure method was used for the lining of the secondary support's long-term safety assessment.
采用荷载结构法对二次衬砌进行了长期安全性评估。
Aiming at the features of medium and long-term load forecasting, a comprehensive model for medium and long-term load forecasting based on Analytic Hierarchy Process (AHP) was put forward.
针对中长期电力负荷预测特点,提出了一种基于AHP(层次分析法)的中长期电力负荷预测综合模型。
The usually used design method, p-y curves method, is unsuitable for estimating the deformation response of the large-diameter monopile under long-term cyclic lateral load.
特别针对砂性土壤,提出了应用室内三轴循环试验的结果评估单桩在单向循环侧向力下的变形方法。
Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.
齿轮泵若是第一次运行,或长期闲置后再使用,最好在空载或小负荷情况下先跑合一小时左右。
Gas load forecasting include: long-term, middle-term, short-term, very short-term load forecasting.
燃气负荷预测包括长期负荷预测、中期负荷预测、短期负荷预测及超短期负荷预测。
The pre-embedded approach can resolve the issue of monitoring dead load stress, but the long-term monitoring can not be achieved due to sensor life.
预埋的方式可解决恒载应力的监测问题,但存在因传感器寿命问题而不能实现长期监测;
An improved model based on RBF neural network for medium and long-term load forecasting is presented. The feasibility and validity o...
实际算例的分析表明,所提出的基于RBF神经网络的缺损数据处理方法和改进的中长期负荷预测模型是可行和有效的。
Therefore, raising the precision of the medium arid long term power load forecast is of great significance to ensure security, economy and the excellent operation of power grids.
因此,提高中长期电力负荷预测精度,对于保障电网安全、经济、优质运行具有重要意义。
A foundation with sufficient stiffness to resist long-term wind and wave load to insure the serviceability of wind energy converter is needed.
一个足以承受长期波浪及风力的基础设施是让风力发电设施在使用年限内正常运转的必要条件。
The machine is a long-term experience of this company developed, emphasizing long-term use of the load, long life, high precision and easy maintenance.
本机是依本公司长期经验积累开发而成,强调长期使用负载、寿命长、精度高和维修简便。
The machine is a long-term experience of this company developed, emphasizing long-term use of the load, long life, high precision and easy maintenance.
本机是依本公司长期经验积累开发而成,强调长期使用负载、寿命长、精度高和维修简便。
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