Background: In the modern age when electric power is one of the major energies, electrical
equipment and power transformer are indispensable. Power transformer is an important electric transmission
and transformation equipment in electrical power system. The failure of power transformer
may induce long-term power supply interruption and large economic loss. Therefore, the diagnosis
and repair of broken-down power transformer are of great urgency. This study developed a patent
which could improve fault diagnosis applicability and reduce transformer faults using plant growth
simulation algorithm (PSGA) in combination with neural network method.
Methods: First of all, an improved PSGA model was established according to the characteristics and
defects of PSGA. Secondly, the improved model was combined with neural network for the analysis
of transformer faults; a back-propagation (BP) neural network fault analysis model was then established
as well as given a simulation experiment.
Results: Simulation results showed that such a method could accurately diagnose transformer faults.
Finally, according to internal faults of transformers, a recognition mathematical model of transformer
winding was established and given an experimental simulation. The simulation results indicated that
the patent was enough to satisfy the synthetic fault diagnosis of power transformers.
Conclusion: In conclusion, such patent provides an effective theoretical and experimental basis for the
diagnosis and fixing of power transformer faults.