手法を比較

	スマートグリッドの状態推定	負荷予測
分野	電気工学	電気工学
系統	Process / pipeline	Process / pipeline
提唱年	1970s	1960s
提唱者	Power systems engineering community	Electrical utilities
種類	Computational pipeline	Computational pipeline
原典	Abur, A., & Exposito, A. G. (2004). Power System State Estimation: Theory and Implementation. Marcel Dekker.	Hippert, H. S., Pedreira, C. E., & Souza, R. C. (2001). Neural networks for short-term load forecasting: A review and evaluation. IEEE Transactions on Power Systems, 16(1), 44-55.
別名	state estimation, network state estimation, grid state assessment	demand forecasting, electricity consumption prediction, load demand estimation
関連	4	4
概要	Power system state estimation infers the real-time voltage and phase angle at every bus in a power network from redundant measurements of power flows and voltages. It is the foundation of modern grid operations, enabling real-time monitoring, contingency analysis, and optimal control. Advanced state estimation with synchronized phasor measurements (synchrophasors) enables faster control and detection of instabilities.	Load forecasting predicts future electrical demand on power systems across various time horizons: minutes to hours (short-term), days to weeks (medium-term), and months to years (long-term). Accurate forecasting is essential for economic dispatch, unit commitment, and system reliability. Methods range from classical statistical regression to modern machine learning approaches.