Peak shaving optimization for Yulin-Jinan Gas Pipeline

Due to the gas usage instability, a long-distance gas pipeline is bound to supply in unstable status in a period of time. For the pipeline operating companies, it is essential to determine scientific, reasonable and efficient peaking shaving schemes with the current peaking means. Taking the Yulin-Jinan Gas Pipeline as an example, this paper evaluated its peak shaving capacity at the end of the pipeline in different delivery capacities, analyzed the gas injection and recovery capacities and work requirements of the auxiliary gas storage, and calculated the gas usage imbalance coefficient of downstream users. Finally, this paper put forward the measures and steps to optimize an optimal peak shaving scheme, according to the actual situation of the pipeline network. The peak shaving optimization for the Yulin-Jinan Gas Pipeline was programmed and indexed, so that the scheme could be prepared in a timely, scientific and economic manner. This technique was verified by the peak shaving performance of the pipeline in winter of 2012-2013. It is indicated that daily peak shaving should rely on the pipeline end, seasonal peak shaving should combine the pipeline end with the gas storage, and the pipeline end peak shaving couldn't be used under full load operation. These results will effectively guide the operation and management of the pipeline.