Self-adaptive control method for modes of low-voltage microgrid
An adaptive control and micro-grid technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as operation mode conversion failure, control method switching process impact, control mode conversion delay, etc.
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[0038] Such as figure 1 As shown in the figure, the block diagram of the improved low-voltage microgrid droop control is shown.
[0039] Such as figure 2 As shown, the figure is the control schematic diagram of the improved low-voltage microgrid droop control, set P T is the mechanical power, P e is the electromagnetic power, J is the moment of inertia of the rotor (kg.m 2 ), ω * is the reference electric angular velocity, D is the constant damping coefficient, e is the induced electromotive force, M f is the maximum inductance between the field winding and the field winding, i e Is the excitation current, θ is the electrical angle of the generator.
[0040] The present invention comprises the following steps:
[0041] A. According to the operating principle of the synchronous generator, the mathematical model of the virtual synchronous generator (VSG) is as follows:
[0042] e = ...
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