Abstract
This study proposes a novel network sensitivity-based approach to solving complex power flow calculation problems in real time. A new sensitivity factor, named Jacobian-based distribution factor (JBDF), is used for the calculation of active and reactive power flow in transmission systems. It is derived from the Jacobian matrix of the base case Newton-Raphson power flow solution, and kept constant during real-time line flow calculation. Unlike well-known distribution factors, such as generation shift distribution factor (GSDF), generalised generation shift distribution factor (GGDF) and Z-bus distribution factor (ZBD), this approach reflects changes in complex injection power. Changes in load conditions from base case loads, with either conforming or non-conforming changes in complex power in each bus, can be used to rapidly compute active and reactive power flow without iterations. The proposed approach was tested on IEEE 14-Bus and 30-Bus systems. Numerical results demonstrate that the proposed approach is not only superior to previous distribution factors, but also compares favourably with the Newton-Raphson power flow method. It is well suited to real-time applications in steady-state security control and optimal dispatch.
| Original language | English |
|---|---|
| Pages (from-to) | 109-120 |
| Number of pages | 12 |
| Journal | IET Generation, Transmission and Distribution |
| Volume | 6 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2012 Feb 1 |
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All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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New network sensitivity-based approach for real-time complex power flow calculation. / Huang, W. T.; Yao, K. C.
In: IET Generation, Transmission and Distribution, Vol. 6, No. 2, 01.02.2012, p. 109-120.Research output: Contribution to journal › Article
TY - JOUR
T1 - New network sensitivity-based approach for real-time complex power flow calculation
AU - Huang, W. T.
AU - Yao, K. C.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - This study proposes a novel network sensitivity-based approach to solving complex power flow calculation problems in real time. A new sensitivity factor, named Jacobian-based distribution factor (JBDF), is used for the calculation of active and reactive power flow in transmission systems. It is derived from the Jacobian matrix of the base case Newton-Raphson power flow solution, and kept constant during real-time line flow calculation. Unlike well-known distribution factors, such as generation shift distribution factor (GSDF), generalised generation shift distribution factor (GGDF) and Z-bus distribution factor (ZBD), this approach reflects changes in complex injection power. Changes in load conditions from base case loads, with either conforming or non-conforming changes in complex power in each bus, can be used to rapidly compute active and reactive power flow without iterations. The proposed approach was tested on IEEE 14-Bus and 30-Bus systems. Numerical results demonstrate that the proposed approach is not only superior to previous distribution factors, but also compares favourably with the Newton-Raphson power flow method. It is well suited to real-time applications in steady-state security control and optimal dispatch.
AB - This study proposes a novel network sensitivity-based approach to solving complex power flow calculation problems in real time. A new sensitivity factor, named Jacobian-based distribution factor (JBDF), is used for the calculation of active and reactive power flow in transmission systems. It is derived from the Jacobian matrix of the base case Newton-Raphson power flow solution, and kept constant during real-time line flow calculation. Unlike well-known distribution factors, such as generation shift distribution factor (GSDF), generalised generation shift distribution factor (GGDF) and Z-bus distribution factor (ZBD), this approach reflects changes in complex injection power. Changes in load conditions from base case loads, with either conforming or non-conforming changes in complex power in each bus, can be used to rapidly compute active and reactive power flow without iterations. The proposed approach was tested on IEEE 14-Bus and 30-Bus systems. Numerical results demonstrate that the proposed approach is not only superior to previous distribution factors, but also compares favourably with the Newton-Raphson power flow method. It is well suited to real-time applications in steady-state security control and optimal dispatch.
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UR - http://www.scopus.com/inward/citedby.url?scp=84863068011&partnerID=8YFLogxK
U2 - 10.1049/iet-gtd.2011.0429
DO - 10.1049/iet-gtd.2011.0429
M3 - Article
AN - SCOPUS:84863068011
VL - 6
SP - 109
EP - 120
JO - IET Generation, Transmission and Distribution
JF - IET Generation, Transmission and Distribution
SN - 1751-8687
IS - 2
ER -