Research on heat-electric load distribution for multi-energy complementary system based on solar and gas

WANG Mingkun; GAO Lin; HUAN Qingqiu; WANG Lin; ZHOU Junbo; HOU Yuting; GUO Yiwen

doi:10.19666/j.rlfd.201904080

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Research on heat-electric load distribution for multi-energy complementary system based on solar and gas

更新时间：2025-09-28

- Research on heat-electric load distribution for multi-energy complementary system based on solar and gas
- Thermal Power Generation Vol. 48, Issue 7, Pages: 39-46(2019)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201904080
  CLC： TK51
- Published Online：10 July 2019，
  
  Published：2019
- 稿件说明：
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WANG Mingkun, GAO Lin, HUAN Qingqiu, et al. Research on heat-electric load distribution for multi-energy complementary system based on solar and gas[J]. Thermal power generation, 2019, 48(7): 39-46.
DOI：

WANG Mingkun, GAO Lin, HUAN Qingqiu, et al. Research on heat-electric load distribution for multi-energy complementary system based on solar and gas[J]. Thermal power generation, 2019, 48(7): 39-46. DOI： 10.19666/j.rlfd.201904080.

摘要

随着新能源大规模并网

多能互补是电网发展的必然趋势

对于拥有多台并列运行机组的热电联产电厂面临着基于厂级的负荷分配问题。本文通过研究光伏电站和燃气-蒸汽联合循环机组的运行特性

确定机组的调度限制范围

并选定典型日负荷曲线对多能互补系统进行调度计算

获得实时负荷分配结果;同时

通过对同一负荷下不同机组运行组合方式的研究

获得该负荷下最优的运行组合方式。仿真计算表明:对于本文的研究对象

两抽凝式组合气耗量最小

一背一抽式次之

3台机组同时运行气耗量较大

因此

在机组运行限度范围内

应优先选用两抽凝式运行组合方式;每日在11:00—22:00时间段采用3台机组同时运行

其余时间段内采用2台抽凝式机组运行

可以有效降低机组启停次数。该结论在实现节能降耗的同时

为热电负荷调度提供数据和理论支持。

Abstract

With the large-scale integration of new energy sources

multi-energy complementary is an inevitable trend of power grid development. For cogeneration plants with multiple parallel operating units

they are faced with plant-level load distribution issues. By studying the operating characteristics of photovoltaic power plants and gas-steam combined cycle units

the scheduling limits are determined in this paper. The typical daily load curve is selected to complete the scheduling calculation for multi-energy complementary system

and the real-time load distribution results are obtained. Meanwhile

the optimal combination mode can be obtained through the research on different operation combination modes under the same load. The simulation calculations show that

the gas consumption of double-condensing unit operation mode is the least

followed by a back and a condensing unit operation mode. The gas consumption of three-unit operating mode is the most. Therefore

within the operating limits

the double-condensing unit operation mode should be preferred. The three-unit operating mode should be operated simultaneously during the period of 11:00—22:00 to effectively reduce the number of starts and stops. It provides data and theoretical support for heat-electric load distribution while achieving energy saving and consumption reduction.

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