Research on sensitivity analysis method of large-scale grid reliability based on circuit outage model

2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) Pub Date : 2014-12-01 DOI:10.1109/APPEEC.2014.7066142

Lui JingJing, Sun Lu, Li Qinxin, D. Songhuai

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引用次数: 2

Abstract

Through the sensitivity analysis of large-scale grid reliability, we can determine the key equipment influencing the power supply reliability of the system, and thus effectively find out the bottlenecks limiting the system reliability. In this Paper, the circuit outage model is established, and the former complex large-scale grid with various equipments is divided to two levels: circuit and grid which can be calculated and analyzed in order. Therefore, the complexity of sensitivity computing of large-scale grid is reduced effectively. The circuit equivalent model and grid reliability indicator are deduced by the min. cut set algorithm, based on which various sensitivity indicators of grid reliability indicators against original reliability parameters of equipment are acquired. The routine computing and analysis of National Electric Power Facilities have fully verified its correctness and practicality. The correctness of the algorithm and procedure is described in this Paper through the actual system of Northwest Grid.

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基于线路中断模型的大电网可靠性敏感性分析方法研究

通过对大电网可靠性的敏感性分析，可以确定影响系统供电可靠性的关键设备，从而有效地找出制约系统可靠性的瓶颈。本文建立了电路停运模型，将原有复杂的大型电网中各种设备划分为电路和电网两个层次，并按顺序进行计算和分析。从而有效地降低了大规模网格灵敏度计算的复杂度。采用最小割集算法推导电路等效模型和电网可靠性指标，在此基础上获得电网可靠性指标对设备原始可靠性参数的各种灵敏度指标。国家电力设施的日常计算和分析充分验证了该方法的正确性和实用性。通过西北电网的实际系统，说明了算法和程序的正确性。

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2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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