השוואת שיטות

	אמידת מצב מערכת הספק	זרימת הספק ניוטון-רפסון
תחום	הנדסת חשמל	הנדסת חשמל
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1970	1967
הוגה השיטה	Fred Schweppe	William F. Tinney, Charles E. Hart
סוג	Real-time state estimation using measurements and physical models	Iterative solution algorithm for power system steady-state analysis
מקור מכונן	Schweppe, F. C., & Wildes, J. (1970). Power system static-state estimation: III system implementation. IEEE Transactions on Power Apparatus and Systems, 89(1), 120-125.	Tinney, W. F., & Hart, C. E. (1967). Power flow solution by Newton's method. IEEE Transactions on Power Apparatus and Systems, 86(11), 1449-1460.
כינויים	PSSE, WLS State Estimation, Power Flow State Estimation	NR Power Flow, Newton-Raphson Load Flow
קשורות	3	3
תקציר	Power System State Estimation (PSSE) is a real-time algorithm that estimates the voltage and phase angle at every bus in a power grid from a set of noisy, redundant measurements. Introduced by Schweppe in 1970, it combines measurements (power flows, voltage magnitudes) with the physical power flow model to produce the most likely system state. State estimation is the foundation of modern grid control centers, providing operators with an accurate digital representation of the actual network.	The Newton-Raphson method is a powerful iterative technique for solving the nonlinear power flow equations in electrical power systems. Introduced by Tinney and Hart in 1967, it became the industry standard for computing steady-state voltage and power distributions across transmission networks. The method uses Jacobian matrix formulations to rapidly converge to the true operating point.