An Integrated Transmission Expansion and Sectionalizing-Based Black Start Allocation of BESS Planning Strategy for Enhanced Power Grid Resilience

Fang Yao,Xinan Zhang,Tyrone Fernando,Herbert Ho-Ching Iu,Tat Kei Chau

doi:10.1109/access.2020.3014341

Abstract

This paper proposes a new comprehensive integrated planning strategy for the resilience enhancement of power system, including determining the transmission expansion and sectionalizing-based optimal black start (BS) resources allocation of battery energy storage system (BESS) during extreme events. The planning model comprises of two stages, namely the normal stage and resilience stage. The first stage is to make the collaborative planning decisions, i.e., constructing transmission lines and installation of BESS as BS sources. The second stage minimizes the power system generation cost and load shedding cost under disaster conditions. The planning algorithm is developed to describe the uncertainty of transmission lines outage status, which can be affected by the normal stage expansion states. In algorithm ways, the model was solved with a duality-based column and constraint generation (D-CCG) method. Taking IEEE 30-bus and 39-bus system for examples and GUROBI/CPLEX was utilized to solve proposed model. Numerical cases show the effectiveness of the model and the superiority of the solution strategy.

Highlights

Since entering the 21st century, many countries speed up the pace of the development of power industry, cross-region and even cross-country power network, renewable energy development and grid interconnection, and the wide applications of electric vehicles, make the installed components, structures and coordinated control of power system more complex [1], [2]
In order to achieve the sub-problem, the KKT conditions are used in primality-based column and constraint generation (P-CCG) for the lower level problem, whereas the dualization is used in duality-based column and constraint generation (D-CCG) for the lower level problem
In terms of the sub-problem, it will be solved by primal cuts, which is more efficient than other techniques such as Benders decomposition based on dual cuts

Summary

INTRODUCTION

Since entering the 21st century, many countries speed up the pace of the development of power industry, cross-region and even cross-country power network, renewable energy development and grid interconnection, and the wide applications of electric vehicles, make the installed components, structures and coordinated control of power system more complex [1], [2]. A feasible generators start-up sequence will accelerate the power system black start process and further improve the system resilience by increasing the power grid capacity adequacy [23] In this context, the proposed work presents a hierarchical integrated planning model to determine both transmission expansion and sectionalizing-based optimal BS allocation of BESS for power system resilience enhancement under extreme weather event. 2) A comprehensive restoration strategy is proposed for attaining a practical plan for power system resilience enhancement, including sectionalizing-based BS allocation of BESS, as well as determining the start-up sequences of NBS generators. 3) In the proposed robust integrated planning model, both the sectionalizing-based BS resources allocation of BESS and NBS generators restoration sequences are optimized simultaneously.

SOLUTION METHODOLOGY

SUB-PROBLEM

CASE STUDIES

CONCLUSION