Voltage online coordination control method based on energy margin constraint
A technology of energy margin and coordinated control, applied in the direction of AC network voltage adjustment, etc., can solve the problems of less consideration of the overall stability of the system, unsatisfactory control efficiency and effect, etc.
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[0027] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] The technical scheme of the present invention incorporates multiple voltage control methods into a unified energy function framework, introduces the Lie derivative method to calculate the energy margin change, takes the energy margin not less than zero as the objective function, and uses the reactive power margin (Reactive Power Margin, RPM) and the voltage variation range are used as constraints to form an approximate linear programming problem, and its solution is a coordinated control strategy, which is implemented as follows:
[0029] Step (1): Calculate the energy margin based on the Lie derivative;
[0030] The implementation process of this step is as follows:
[0031] Step (1.1): Firstly, according to the classic rotor motion equation, establish a model containing various energy functions:
[0032] ...
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