基于时间序列法的短期负荷预测采样装置的设计

Design of Short Term Load Forecasting Sampling Device Based on Time Teries Method

设计了基于时间序列法的短期负荷预测采样装置,包括设置于电网中用于从供电端向负载端进行供电输送的电力线路、用于对电力线路负载端的输电电压进行监测的电压监测器、用于对电力线路负载端的输电电流进行监测的电流监测器、用于将电压监测器和电流监测器采集的数据编码成信号的信号编码器、于用将信号编码器生成的信号传输至电网控制中心的信号发射器;还包括用于向信号编码器中输入标准时间信号的网络计时器。以间序列法的短期负荷预测采样装置为基础对某风电场PA发电机组的负荷进行实时预测风电功率,并将此与灰色模型的负荷预测进行比较。从结果可知该装置能够满足时间序列法短期的负荷预测系统的需要,为时间序列法短期的负荷预测提供精准的线路检测参数。

This paper has designed the short-term load time series prediction method based on sampling device,including the power grid for power supply from the end to the loading end of the conveying line,power supply voltage monitor,monitoring for transmission voltage of the power line load of current monitor,for monitoring the current transmission power line the load for the data encoding the voltage monitor and the current monitor collected into signal encoder,signal for the transmitter signal generating the signal of encoder signal is transmitted to the network control center;and also include an input signal to the network standard time timer the signal encoder.Based on the short term load forecasting sampling device of the inter sequence method,the wind power is predicted in real time for the load of a PA generator set in a wind farm,and this is compared with the load forecast of the grey model.The result shows that the device can meet the needs of the short-term load forecasting system of time series method,and provides accurate line detection parameters for short-term load forecasting of time series.