DOI:https://doi.org/10.1007/s40565-019-0503-z |
| |
| |
Active splitting strategy searching approach based on MISOCP with consideration of power island stability |
| |
|
| |
Page view: 0
Net amount: 656 |
| |
Author:
Yifan ZHOU1
, Wei HU1
, Yong MIN1
, Le ZHENG1,2
|
Author Affiliation:
1. Department of Electrical Engineering, Tsinghua University,
Beijing 100084, China
2. Department of Cardiothoracic Surgery, Stanford University,
Stanford, USA
|
Foundation: |
|
|
|
Abstract: |
Active splitting control utilizes real-time decision
and system-level splitting to prevent cascading
blackouts and to maintain power supply under severe disturbances.
Splitting strategy searching (SSS) is one of the
most crucial issues in active splitting control for deciding
‘‘where to split’’. SSS determines the splitting surface in
real time to properly divide the asynchronous generators
into isolated islands with an optimal control effect. In this
paper, an SSS approach that focuses on island stability is
presented. The proposed SSS approach is designed to
ensure a rational stability margin and regulation ability on
each island during and after the transient process of system
splitting. This method includes the active/reactive power
flow feasibility constraints and voltage/angle stability
constraints in the steady state, as well as the frequency
response capability constraints in the transient process. By
considering the island stability constraints in the SSS, the
proposed approach can avoid the splitting strategies with poor stability performance. Therefore, the major advantage
of the proposed approach is ensuring better island static
and transient stability during and after the splitting control.
In addition, the entire model is formulated as a mixedinteger
second-order cone programming (MISOCP) model.
Thus, it can be rapidly solved by using commercial optimization
solvers. Numerical simulation of a realistic
provincial power system in central China demonstrates the
validity of the proposed approach and the necessity of
considering the island stability issues. |
Keywords: |
s Splitting strategy searching (SSS), Mixedinteger second-order cone programming (MISOCP), Controlled islanding, Static stability margin, Transient stability, Power system |
| |
Online Time:2019/05/14 |
| |
|
|
View Full Text
Download reader
|
|
|