中国电机工程学报Issue(1)：142-150,9.DOI:10.13334/j.0258-8013.pcsee.2015.01.018
太阳能辅助加热系统对蒸汽动力机组运行性能的扰动研究
A Study of the Disturbance in Steam Power Unit Caused by Solar Auxiliary Heating System
安连锁 1徐玫 1陈海平 1冯蕾 1张衡1
作者信息
- 1. 华北电力大学能源动力与机械工程学院，北京市昌平区 102206
- 折叠
摘要
Abstract
It is common that variable conditions are considered in the process of solar-assisted coal-fired power system designing. Small disturbance theory tells us that when no obvious water distribution happens complex variable conditions calculation can be saved and the results which meet required precision can be achieved as well. A quantitative analysis was conducted for the impact of the solar auxiliary heating system on the thermal system. The results show that within a small range the impact caused by the solar auxiliary heating system can be regarded as a small disturbance, while in the usual range(30% to 100%) although it can not be regarded as a small disturbance the calculation of steam admission flow and power generation can be simplfied under the coal-saving and power-boosting operation mode. In addition, the calculation of thermal conversion rate, generating heat rate and coal consumption rate can be simplified when the percentage of replacing point 1 extraction steam is under 60%; the calculation of thermal conversion rate, generating heat rate, coal consumption rate in waste heat utilization can be simplified no matter how the percentage of replacing extraction steam changes; the calculation of collector field area and the initial investment can also be simplified when the percentage of replacing point 1 extraction steam is under 55%. That is, the error of the caculation for the above parameters meet the engineering accuracy requirement when small disturbance algorithm is used. The above conclusion provides a theoretical reference for the optimal design and analysis of the solar-aided coal-fired power system.关键词
太阳能/光煤互补系统/小扰动/运行性能Key words
solar energy/solar-aided coal-fired power system/small disturbance/operation performance分类
能源科技引用本文复制引用
安连锁,徐玫,陈海平,冯蕾,张衡..太阳能辅助加热系统对蒸汽动力机组运行性能的扰动研究[J].中国电机工程学报,2015,(1):142-150,9.
