卫星地面站供电设计是地面站设计的重要组成部分,关系到整个地面站的安全和稳定运行。介绍卫星地面站供电系统的基本组成,包括供电输入端、不间断电源(Uninterruptible Power Supply,UPS)和负载输出端,并针对现有卫星地面站的供电不足,...卫星地面站供电设计是地面站设计的重要组成部分,关系到整个地面站的安全和稳定运行。介绍卫星地面站供电系统的基本组成,包括供电输入端、不间断电源(Uninterruptible Power Supply,UPS)和负载输出端,并针对现有卫星地面站的供电不足,提出不同电力环境下的优化设计方法,全面提升地面站的供电系统可靠性和使用效能,为后续卫星地面站供电设计提供重要参考。展开更多
With the gradually widely usage of the air conditioning(AC) loads in developing countries, the urban power grid load has swiftly increased over the past decade.Especially in China, the AC load has accounted for over30...With the gradually widely usage of the air conditioning(AC) loads in developing countries, the urban power grid load has swiftly increased over the past decade.Especially in China, the AC load has accounted for over30% of the maximum load in many cities during summer.This paper proposes a scheme of constructing a virtual peaking unit(VPU) by public buildings’ cool storage central AC(CSCAC) systems and non-CSCAC(NCSCAC)systems for the day-ahead power network dispatching(DAPND). Considering the accumulation effect of different meteorological parameters, a short term load forecasting method of public building’s central AC(CAC) baseline load is firstly discussed. Then, a second-order equivalent thermal parameters model is established for the public building’s CAC load. Moreover, the novel load reduction control strategies for the public building’s CSCAC system and the public building’s NCSCAC system are respectively presented. Furthermore, based on the multiple-rank control strategy, the model of the DAPND with the participation of a VPU is set up. The VPU is composed of large-scale regulated public building’s CAC loads. To demonstrate the effectiveness of the proposed strategy, results of a sample study on a region in Nanjing which involves 22 public buildings’ CAC loads are described in this paper. Simulated results show that, by adopting the proposed DAPND scheme, the power network peak load in the region obviously decreases with a small enough deviation between the regulated load value and the dispatching instruction of the VPU. The total electricity-saving amount accounts for7.78% of total electricity consumption of the VPU before regulation.展开更多
文摘卫星地面站供电设计是地面站设计的重要组成部分,关系到整个地面站的安全和稳定运行。介绍卫星地面站供电系统的基本组成,包括供电输入端、不间断电源(Uninterruptible Power Supply,UPS)和负载输出端,并针对现有卫星地面站的供电不足,提出不同电力环境下的优化设计方法,全面提升地面站的供电系统可靠性和使用效能,为后续卫星地面站供电设计提供重要参考。
基金supported by National Key Technology Support Program (No. 2013BAA01B00)National Natural Science Foundation of China (No. 51361130152, No. 51577028)
文摘With the gradually widely usage of the air conditioning(AC) loads in developing countries, the urban power grid load has swiftly increased over the past decade.Especially in China, the AC load has accounted for over30% of the maximum load in many cities during summer.This paper proposes a scheme of constructing a virtual peaking unit(VPU) by public buildings’ cool storage central AC(CSCAC) systems and non-CSCAC(NCSCAC)systems for the day-ahead power network dispatching(DAPND). Considering the accumulation effect of different meteorological parameters, a short term load forecasting method of public building’s central AC(CAC) baseline load is firstly discussed. Then, a second-order equivalent thermal parameters model is established for the public building’s CAC load. Moreover, the novel load reduction control strategies for the public building’s CSCAC system and the public building’s NCSCAC system are respectively presented. Furthermore, based on the multiple-rank control strategy, the model of the DAPND with the participation of a VPU is set up. The VPU is composed of large-scale regulated public building’s CAC loads. To demonstrate the effectiveness of the proposed strategy, results of a sample study on a region in Nanjing which involves 22 public buildings’ CAC loads are described in this paper. Simulated results show that, by adopting the proposed DAPND scheme, the power network peak load in the region obviously decreases with a small enough deviation between the regulated load value and the dispatching instruction of the VPU. The total electricity-saving amount accounts for7.78% of total electricity consumption of the VPU before regulation.
