严寒地区零碳建筑多能协同供能系统构建及优化分析
Construction and optimization analysis of multi-energy coordinated energy supply system for zero-carbon buildings in severe cold zone
摘要：
在“双碳”目标的推动下,可再生能源在建筑供能系统中的应用越来越广泛,但存在稳定性不足和供需不匹配等问题。为解决这些问题,本文以沈阳市某零碳建筑为例,应用TRNSYS软件构建风光互补+热泵多能协同供能系统,探讨系统能耗及性能,在GenOpt优化平台上,以供电系统覆盖率、碳减排量和平准化能源成本为目标,对风光互补+热泵多能协同供能系统进行单准则优化,探讨能源、环境和经济效益。明确了光电和风电系统在严寒地区的技术可行性,通过优化风光互补+热泵多能协同供能系统,供电系统覆盖率提高了22.9%,碳减排量最大为13 190 kg,平准化能源成本最低为0.37元/(kW·h),为严寒地区零碳建筑设备选型提供依据。
Abstract：
Driven by the “carbon peaking and carbon neutrality” goals, the application of renewable energy in building energy supply systems is becoming increasingly widespread. However, there are issues such as insufficient stability and mismatch between supply and demand. To address these problems, this paper takes a zero-carbon building in Shenyang as an example and uses TRNSYS software to construct a wind-solar hybrid and heat pump multi-energy coordinated energy supply system to explore the system’s energy consumption and performance. On the GenOpt optimization platform, with the goals of power supply system coverage rate, carbon emission reduction, and levelized cost of energy, single-criterion optimization is conducted on the wind-solar hybrid and heat pump multi-energy coordinated energy supply system to discuss the energy, environment, and economic benefits. The technical feasibility of photovoltaic and wind power systems in severe cold zone is clarified. Through optimization of the wind-solar hybrid and heat pump multi-energy coordinated energy supply system, the power supply system coverage rate is increased by 22.9%, the maximum carbon emission reduction reaches 13 190 kg, and the lowest levelized cost of energy is 0.37 yuan/kWh, providing a basis for equipment selection in zero-carbon buildings in severe cold zone.
Keywords:severe cold zone; zero-carbon building; multi-energy coordination; wind-solar hybrid; optimization analysis; carbon peaking and carbon neutrality