Reliability Evaluation of Power-Gas Coupled System with Direct Load Control

Reliability Evaluation of Power-Gas Coupled System with Direct Load Control

Cogeneration

Direct load control

energy hub

Indexes

Load flow control

Optimization

Power grids

Power-Gas Coupled System

Reliability

reliability evaluation

Temperature distribution

Direct load control (DLC) is an important way to achieve energy balance in power-gas coupled systems, but there is in lack of system reliability evaluation method considering the influence of DLC currently. Therefore, a power-gas coupled model based on energy hub is built, considering the impact of natural gas shortage on power grid, and introduces energy fluctuation of gas grid side into power grid side by using the input-output relationship of hub energy. In the meanwhile DLC availability percentage model and the minimal optimization model of load reduction are established to describe the potential of load reduction. Then in order to evaluate the reliability of the system and the role of DLC, reliability indexes such as expected electric not supplied (EENS), DLC utilization probability and contribution to EENS are proposed from the point of view of system and equipment respectively. On this basis, a reliability evaluation method of power-gas coupled system considering DLC is proposed. Finally, the reliability of IEEE14-NGS10 power-natural gas coupled system with DLC is evaluated by Monte Carlo simulation method. The simulation results verify the effectiveness of the proposed method.

329-333

P. Liu

H. Hou

X. Wu

J. Tang

G. Zhu

X. Li

A. Tang

2019 IEEE 4th International Conference on Big Data Analytics (ICBDA)

2019

conferencePaper

10.1109/ICBDA.2019.8713208