TITLE:
Analysis of Distribution Generation Influences on the Vol-tage Limit Violation Probability of Distribution Line
AUTHORS:
Lu Zhang, Wei Tang, Muke Bai, Pengwei Cong
KEYWORDS:
Distribution Generation; Distribution Line; Voltage Limit Violation Probability; Time-sequence Characteristic; Randomness
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
7,
2013
ABSTRACT:
Considering the time-sequence characteristic and
randomness of load and natural resources, this paper studies on the distributed
generation (DG) impacts on voltage limit violation probability of distribution
lines. The time-sequence characteristic and randomness of load, wind
and photovoltaic (PV) generation are analyzed; the indices and risk levels of
voltage limit violation probability of node and distribution line are proposed. By
using probabilistic load flow based on semi-invariant
method, the impact degrees of voltage limit violation
are calculated with different distributed power penetration levels, different
seasons, different time periods, different allocation ratio between the wind
power and PV power. Voltage limit violation laws of distribution line, which
are concluded by IEEE33 bus system simulation, are very helpful to guide the voltageregulation
of distribution line including distributed generation.