针对冷热电联供(combined cooling,heating and power,CCHP)"以热定电"导致的弃风问题,提出一种考虑风电消纳的区域综合能源系统源荷协调优化调度方法。首先,在源侧引入地源热泵利用风电供热,解耦CCHP"以热定电"运...针对冷热电联供(combined cooling,heating and power,CCHP)"以热定电"导致的弃风问题,提出一种考虑风电消纳的区域综合能源系统源荷协调优化调度方法。首先,在源侧引入地源热泵利用风电供热,解耦CCHP"以热定电"运行约束;其次,在荷侧分析电、热需求资源可调度价值,采用电价和激励两类需求响应(demand response,DR)共同协助风电并网消纳;最后,考虑源荷协调建立区域综合能源系统双层优化调度模型,上层采用电价需求响应引导用户响应风电出力变化,下层计及供热舒适度模糊性与地源热泵作用,以调度周期内系统总成本最小为目标决策各机组最优出力,采用商业优化软件CPLEX对双层模型求解。仿真算例表明:该方法有效提高了系统风电消纳能力,降低了系统运行成本,具有良好的社会经济效益。展开更多
冷热电联供型（combined cooling,heating and power,CCHP）微网能够实现多能源间优势互补和统一协调运行,是一种新型、高效的供能方式。为了分析热泵和储能装置的经济节能作用,在分时电价及微网并网运行的条件下,以调度周期内系统总运...冷热电联供型（combined cooling,heating and power,CCHP）微网能够实现多能源间优势互补和统一协调运行,是一种新型、高效的供能方式。为了分析热泵和储能装置的经济节能作用,在分时电价及微网并网运行的条件下,以调度周期内系统总运行成本最小为目标函数,建立了一个包含风机、光伏、燃料电池、CCHP系统、地源热泵及储能装置在内的微网运行优化模型,采用混合整数规划法对模型求解,并与常见的CCHP型微网优化调度模型对比分析。仿真算例表明：热泵和储能装置可以改变系统中冷、热、电的耦合关系,增强系统的灵活调节能力,具有显著的经济效益。展开更多
居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、...居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、经济效益好等优势,与居民需求侧响应的潜力,提出两阶段优化模式。第一阶段,社区物业根据负荷预测及光伏出力预测,优化CCHP系统各部分出力,最大化物业净收益。第二阶段,家庭能量管理系统(Home Energy Management System,HEMS)根据CCHP系统启停及出力情况与分时电价,优化家庭负荷工作时间,最小化用户费用。最后通过对比不同案例仿真结果,证明了该两阶段优化模式能够实现供能侧与用能侧的双赢。展开更多
Iran’s removing subsidy from energy carrier in four years ago leads to spike electricity price dramatically. This abrupt change increases the interest on distributed generation (DG) because of its several benefits su...Iran’s removing subsidy from energy carrier in four years ago leads to spike electricity price dramatically. This abrupt change increases the interest on distributed generation (DG) because of its several benefits such as lower electricity generation price. In Iran among all type of DGs, because of wide natural gas network infrastructure and several incentives that government legislated to support combined cooling, heat and power (CCHP) investors, this type of technology is more prevalent in comparison with other technologies. Between existing CCHP technologies, certain economic choices are to be taken into account. For different buildings with different load curves, suitable size and operation of CCHP should be calculated to make the project more feasible. If CCHP does not well suited for a position, then the whole energy efficiency would be plunged significantly. In this paper, a model to find the optimal size and operation of CCHP and auxiliary boiler for any users is proposed by considering an integrated view of electricity and natural gas network using GAMS software. Then this method is applying for a hospital in Tehran as a real case study. Finally, by applying COMFAR III software, useful financial parameters and sensitivity analysis are calculated.展开更多
文摘针对冷热电联供(combined cooling,heating and power,CCHP)"以热定电"导致的弃风问题,提出一种考虑风电消纳的区域综合能源系统源荷协调优化调度方法。首先,在源侧引入地源热泵利用风电供热,解耦CCHP"以热定电"运行约束;其次,在荷侧分析电、热需求资源可调度价值,采用电价和激励两类需求响应(demand response,DR)共同协助风电并网消纳;最后,考虑源荷协调建立区域综合能源系统双层优化调度模型,上层采用电价需求响应引导用户响应风电出力变化,下层计及供热舒适度模糊性与地源热泵作用,以调度周期内系统总成本最小为目标决策各机组最优出力,采用商业优化软件CPLEX对双层模型求解。仿真算例表明:该方法有效提高了系统风电消纳能力,降低了系统运行成本,具有良好的社会经济效益。
文摘冷热电联供型（combined cooling,heating and power,CCHP）微网能够实现多能源间优势互补和统一协调运行,是一种新型、高效的供能方式。为了分析热泵和储能装置的经济节能作用,在分时电价及微网并网运行的条件下,以调度周期内系统总运行成本最小为目标函数,建立了一个包含风机、光伏、燃料电池、CCHP系统、地源热泵及储能装置在内的微网运行优化模型,采用混合整数规划法对模型求解,并与常见的CCHP型微网优化调度模型对比分析。仿真算例表明：热泵和储能装置可以改变系统中冷、热、电的耦合关系,增强系统的灵活调节能力,具有显著的经济效益。
文摘居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、经济效益好等优势,与居民需求侧响应的潜力,提出两阶段优化模式。第一阶段,社区物业根据负荷预测及光伏出力预测,优化CCHP系统各部分出力,最大化物业净收益。第二阶段,家庭能量管理系统(Home Energy Management System,HEMS)根据CCHP系统启停及出力情况与分时电价,优化家庭负荷工作时间,最小化用户费用。最后通过对比不同案例仿真结果,证明了该两阶段优化模式能够实现供能侧与用能侧的双赢。
文摘Iran’s removing subsidy from energy carrier in four years ago leads to spike electricity price dramatically. This abrupt change increases the interest on distributed generation (DG) because of its several benefits such as lower electricity generation price. In Iran among all type of DGs, because of wide natural gas network infrastructure and several incentives that government legislated to support combined cooling, heat and power (CCHP) investors, this type of technology is more prevalent in comparison with other technologies. Between existing CCHP technologies, certain economic choices are to be taken into account. For different buildings with different load curves, suitable size and operation of CCHP should be calculated to make the project more feasible. If CCHP does not well suited for a position, then the whole energy efficiency would be plunged significantly. In this paper, a model to find the optimal size and operation of CCHP and auxiliary boiler for any users is proposed by considering an integrated view of electricity and natural gas network using GAMS software. Then this method is applying for a hospital in Tehran as a real case study. Finally, by applying COMFAR III software, useful financial parameters and sensitivity analysis are calculated.
