电力负荷系统是典型的灰色系统，电力负荷特性指标的预测具有直接的经济意义。
Electric load system is a typical grey system and the forecast for the inder of electric load characteristics has a directly economical meaning.
因为天气炎热，整个电力系统已经超负荷了。
The electrical system is overloaded because of the hot weather.
由于重型工业企业及大型用电设备的不断增多，对电网形成了越来越强烈的冲击负荷，严重影响电力系统的稳定性。
Because of development of heavy industry and increase of large power equipment. more intensive percussive load is formed in power network and influences stability of power system seriously.
分析了电力系统在周期性负荷扰动下的振荡失稳问题。
The power system instability caused by oscillation under periodical load disturbance was analyzed.
作者研究了在周期性负荷扰动下电力系统安全盆的分形侵蚀，通过数值仿真给出了不同的扰动值对安全盆的侵蚀程度。
The fractal erosion of safe basin in a power system disturbed by a periodical load is studied, and the erosion extent induced by different disturbance values is numerically analyzed.
非线性电气负荷产生的喈波电流增大了电力系统热损耗和终端用户的用电费角。
The harmoic current from nonlinear electric load increases heat consumption in electric system and end-users' burden in electric cost.
最后总结了本文的主要研究工作与收获，提出了一些改进方案，并介绍了电力系统短期负荷预报的发展前景。
At last, summarizing the work had done, coming up with some improved proposal and introducing development possibility of short-term load forecast of power system.
随着谐波负荷的增加，电力系统的谐波污染日益严重。
Along with the harmonics loads increased, the harmonics pollution of the power system is increasingly serious.
了解电力系统短期负荷预报的现状，总结国内外的研究方法。
Looking into the present condition of power system short-term load forecast and summarizing research method in the world.
本文介绍一个正在实际使用的短期电力负荷智能预报系统。
This paper presents an intelligent system for forecasting the short term load being used.
变电站的系统频率由电力网的有功负荷来决定，当系统频率超出允许范围时，应及时调整所带负荷以稳定系统频率。
System frequency of substation is dependant on active load of power grid. when system frequency exceeds allowable limits load shall be regulated immediately for stabilization of system frequency.
电力变流器和其他非线性负荷向电力系统“注入”谐波电流，引起一系列问题。
The power converters and other nonlinear loads "inject" the harmonic current into the power systems and cause a series of problems.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
说明：电力系统负荷预测程序，短期预测，考虑天气、人体舒适度等因素。
Power system load forecasting process, short-term forecasting, considering the weather, human comfort and other factors.
文中给出了这种算法在电力系统负荷预测中的实际应用，并与标准BP算法作了比较。
An example of the algorithm's application in electric power system load forecasting is shown and compared with standard BP algorithm.
计算结果表明，用该预测方法预测电力系统季负荷具有较高的预测精度。
It sampling calculation shows that this forecasting method has high forecasting precision in the seasonal load forecasting of power system.
电力系统负荷预测是电力系统运行、控制和规划不可缺少的一部分，是电力市场技术支持系统的基础。
Power system load forecast, which is the base of power market technique supporting system, is an essential part of power system operation, control and planning.
电力系统设备和负荷对谐波更为敏感。
Power system equipment and loads which are more sensitive to harmonics.
该设计方案已在电力负荷管理系统中得到应用，并在实际应用中验证了设计方法的正确性。
The design scheme has got application in an electrical load management system, and it proves that the correctness of design method is verified in practice.
负荷预测是电力系统运行和规划的依据。
Power system load forecasting is the foundation of power system operation and planning.
因此如何快速准确计算电力系统区域间的输电能力，使系统在满足安全性和可靠性的前提下，最大程度地满足各区域用电负荷的需求，成为电力系统亟待解决的研究课题。
Thus how to calculate the transfer capability quickly and precisely and how to satisfy the demand of power load furthest become a challenging task under the precondition of security and reliability.
现有的电力负荷监控系统功能单一，已不能满足现代电力管理的要求。
Function of the existing power load monitoring system now we have is so single, can't satisfy the request of modern management of electric power.
提出了一种预测电力系统负荷的新方法。
以分形理论为依据，在雷达坐标中对电力系统负荷序列的分形维数、膨胀系数等参数进行了计算。
In accordance with the methods of fractal theory the parameters of power load series, such as fractal dimension and dilatation coefficient, are calculated in radar coordination.
南京市实施的部分结果表明，负荷管理可以改变电力系统负荷曲线的形状，从而达到期望的目标，同时还可以为电力负荷的预测提供修正的参数。
Part of implementary result shows that load management can shape the load curve of power system to reach the expected aim and supply revised parameters for load forecast.
电力负荷是电力系统的重要组成部分，负荷模型已经成为制约电力系统仿真计算结果准确和可信赖程度的关键。
Power load is the important part of power system. Load modeling has become a crux factor, which is restricted veracity and trustiness of power system simulation results.
短期电力负荷的预测对电力系统具有重要的意义。
Short-term load forecasting is of great importance for electric power systems.
电力系统短期负荷预测使用的方法有传统建模方法，诸如时间序列、回归分析等方法。
There are traditional model methods of forecasting short-term load, such as time series, regression analysis, and so on.
电力系统短期负荷预测使用的方法有传统建模方法，诸如时间序列、回归分析等方法。
There are traditional model methods of forecasting short-term load, such as time series, regression analysis, and so on.
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