Abstract
The successful application of the unified power flow controller (UPFC) provides a new control method for the secure and economic operation of power system. In order to make the full use of UPFC and improve the economic efficiency and static security of a power system, a preventive security-constrained power flow optimization method considering UPFC control modes is proposed in this paper. Firstly, an iterative method considering UPFC control modes is deduced for power flow calculation. Taking into account the influence of different UPFC control modes on the distribution of power flow after N-1 contingency, the optimization model is then constructed by setting a minimal system operation cost and a maximum static security margin as the objective. Based on this model, the particle swarm optimization (PSO) algorithm is utilized to optimize power system operating parameters and UPFC control modes simultaneously. Finally, a standard IEEE 30-bus system is utilized to demonstrate that the proposed method fully exploits the potential of static control of UPFC and significantly increases the economic efficiency and static security of the power system.
Highlights
Power generation capacity has not kept pace with consumer demand for power
We focus on the preventive security-constrained optimal power flow (SCOPF) which does not consider the possibility of re-scheduling controls in post-contingency states
This paper proposes a preventive security-constrained power flow optimization method considering unified power flow controller (UPFC) control modes
Summary
Power generation capacity has not kept pace with consumer demand for power. This demand can be met by building new generation plants and transmission lines. The optimal power flow (OPF) problem with contingency constraints considering the failure of one component at a time is often referred to as the N-1 security-constrained optimal power flow (SCOPF) [11,12,13,14,15]. This paper proposes a preventive security-constrained power flow optimization method considering UPFC control modes. Taking into account the influence of UPFC control modes on the distribution of power flow under N-1 contingency, the optimization model is constructed by setting a minimal system operation cost and a maximum static security margin as the target. A preventive security-constrained power flow optimization method considering UPFC control modes is proposed. The rest of the paper is arranged as follows: Section 2 presents the power flow calculation method considering UPFC control modes.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
