A Three Phase Unbalanced Power Flow Method for Secondary Distribution System

A Three Phase Unbalanced Power Flow Method for Secondary Distribution System

Ponnam Venkata K. BabuK. Swarnasri P. Vijetha

EEE Department, RVR & JCCE, Chowdavaram, Guntur 522006, A.P, India

Department of Chemical Engineering, VFSTR University, Vadlamudi, Guntur 522213, A.P, India

Corresponding Author Email: 
kishore.ponnam@gmail.com
Page: 
139-144
|
DOI: 
https://doi.org/10.18280/ama_b.610306
Received: 
7 July 2018
|
Accepted: 
29 August 2018
|
Published: 
30 September 2018
| Citation

OPEN ACCESS

Abstract: 

An economical load flow study is needed for automatic distribution network for designing, operation, economic dispatch, stability analysis & contingency analysis. This paper introduces an easy three phase unbalanced load flow technique which will handle unbalanced radial secondary distribution networks. The proposed technique uses the modified Forward-Backward technique that addresses the constant-power, constant -impedance and constant-current load models, regulators, transformers and switches. It solves an easy algebraic algorithmic expression of voltage magnitude. The suggested technique having better convergence rate and execution time is also less for any type of load model, size of the network, and resistance to reactance ratio of feeders.19-bus and 25 bus URDNs results are in agreement with the literature and show that the suggested technique is efficient and reliable.

Keywords: 

radial distribution networks, load flow, modified forward-backward based technique

1. Introduction
2. Mathematical Model of URDN
3. Results and Analysis
4. Conclusions
  References

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