作者：郭良丹¹, 谭锐¹, 林宝森², 殷戈¹, 伍仁杰¹, 蒋国安¹, 柯展煌², 严晓生²

作者单位：1. 国能南京电力试验研究有限公司，江苏 南京 210046;
2. 国能（泉州）热电有限公司，福建 泉州 362804

关键词：储热;调峰;调节模式;仿真计算

摘要：

近几年得到快速发展的新能源如风能、太阳能大规模参与并网，却因其自身不稳定的特点导致电网调控运行安全性降低。为提高电网的安全性，提出从源侧解决问题的方法，即提高供热机组调峰灵活性，在热网中耦合热水储热罐，实现水侧联动，并提出储热罐提供部分供热负荷模式和储热罐提供全供热负荷模式两种储热调节模式。为确定最佳储热调节模式，基于Ebsilon软件建立的仿真模型，对两种储热调节模式调峰范围、放热速度及热经济性进行比较分析。结果表明：从放热角度分析，全供热负荷模式中储热罐的平均放热速度大于部分供热负荷模式；从热经济性角度分析，在负荷相同的情况下储热罐提供全供热负荷模式等价煤耗率更低，热经济性更好。因此全供热负荷模式优于部分供热负荷模式。

Study on improving peak-shaving flexibility of cogeneration units by using heat storage
GUO Liangdan¹, TAN Rui¹, LIN Baosen², YIN Ge¹, WU Renjie¹, JIANG Guoan¹, KE Zhanhuang², YAN Xiaosheng²
1. Guo Neng Nanjing Electric Power Test and Research Co., Ltd., Nanjing 210046, China;
2. Guo Neng (Quanzhou) Thermal Power Co., Ltd., Quanzhou 362804, China
Abstract: In recent years, the rapid development of new energy, such as wind energy and solar energy, has participated in grid-connected on a large scale, but because of its own unstable characteristics, the security of grid regulation and operation has been reduced. In order to improve the security of the power grid, the method to solve the problem from the source side is proposed, that is, to improve the peak shaving flexibility of heating units, and to couple the hot water storage tank in the heat supply network to realize the water side linkage. And two modes of heat storage regulation are put forward, which are partial heating load mode provided by heat storage tank and full heating load mode provided by heat storage tank. In order to determine the optimal heat storage regulation mode, based on the simulation model established by Ebsilon software, the peak shaving range, heat release speed and thermal economy of the two heat storage regulation modes were compared and analyzed. The results show that: from the perspective of heat release, the average heat release rate of the heat storage tank in the full heating load mode provided by heat storage tank is higher than that in the partial heating load mode provided by heat storage tank, but the setting requirement of the heat storage tank in the full heating load mode provided by heat storage tank is higher. From the perspective of thermal economy, under the same load the full heating load mode provided by heat storage tank has lower equivalent coal consumption and better thermal economy. Therefore, the full heating load mode is better than the partial heating load mode.
Keywords: heat storage;peak shaving;regulation modes;simulation calculation
2022, 48(7):16-22  收稿日期: 2021-04-07;收到修改稿日期: 2021-06-06
基金项目: 国家能源集团公司科技项目（GJNY-19-171）
作者简介: 郭良丹（1993-），女，山东菏泽市人，工程师，主要研究方向提高供热机组调峰能力研究
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