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A Dynamized Power Flow Method Based on Differential Transformation
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DOI：10.1109/ACCESS.2020.3028060.png)
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摘要
En 中文
This paper proposes a novel method for solving and tracing power flow solutions with changes of a loading parameter. Different from the conventional continuation power flow method, which repeatedly solves static AC power flow equations, the proposed method extends the power flow model into a fictitious dynamic system by adding a differential equation on the loading parameter. As a result, the original solution curve tracing problem is converted to solving the time domain trajectories of the reformulated dynamic system. A non-iterative algorithm based on differential transformation is proposed to analytically solve the aforementioned dynamized model in form of power series of time. This paper proves that the nonlinear power flow equations in the time domain are converted to formally linear equations in the domain of the power series order after the differential transformation, thus avoiding numerical iterations. Case studies on several test systems including a 2383-bus system show the merits of the proposed method.
Keyword:
Mathematical model
Load flow
Power system stability
Loading
Power system dynamics
Differential equations
Time-domain analysis
Continuation power flow
dynamized power flow
differential transformation
power flow
power-voltage curve
voltage stability
voltage collapse
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期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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