A household DC microgrid voltage stabilizing circuit and control method
A technology of DC microgrid and voltage stabilizing circuit, which is applied in battery circuit devices, DC power supply parallel operation, circuit devices, etc., and can solve problems such as unstable output power, voltage instability, and bus voltage instability of wind/solar power generation units , achieve good DC terminal voltage stability control effect, avoid voltage and current impact, and switch control flexibly
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[0049] Such as figure 1 As shown, a household DC microgrid voltage stabilizing circuit includes a single-phase AC grid unit 1 , a wind power generation unit 2 , a photovoltaic power generation unit 3 , a battery energy storage unit 4 , a voltage stabilization control circuit 5 , and a DC load 6 .
[0050] The single-phase AC power grid unit 1 is connected to the first uncontrollable rectifier ①, the wind power generation unit 2 includes a wind power generator, and the wind power generator is connected to the second uncontrollable rectifier ②.
[0051] The photovoltaic power generation unit 3 includes photovoltaic panels.
[0052] The battery energy storage unit 4 adopts a battery pack.
[0053] The positive pole of the first uncontrolled rectifier ① is connected to one end of the first switch 1#, the other end of the first switch 1# is connected to the positive pole of the DC bus L0, and the negative pole of the first uncontrolled rectifier ① is connected to the negative pole...
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