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peak load 1.【電學】最大負載,高峰負荷。2.一定時間內的最高運輸...

With fast development of our country “ s gas industry and air ' s increasingly serious contamination in city , using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city . there are different problems in the current heating ( air conditioning ) systems . in the cogeneration system , heat and power affect each other , heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well , the cost of gas fuel in boilor heating sestem is so high . the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw , the heating scope is so limited . combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence , combined with a certain demonstrating project in beijing buesness community , going along with calculating and analyzing , drawing out some efficient datas and conclusions , based on this , bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system “ economics 熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高,內燃機雙源供暖(空調)系統的高發電效率僅限于100kw - 1000kw負荷范圍,供熱面積有限。對于大面積的商業園區、居民小區,燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖(空調)系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性,結合北京某一商業園區示范工程,進行了系統的計算與分析,得到了有效的數據與結論,在此基礎上,提出影響聯合循環雙源供暖(空調)系統經濟性的主要因素,并進行敏感性分析,得出有益的結論;最后通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解,并指出系統的優化方向。

Our new idea makes the users queue in the buffer at the time of peak access to avoid the economic losses for the sake of refusing client - side access in the case that no buffer is available at the repository “ s side . as argued in this report , the new method reduces the peak loads of repository effectively 該方法在存儲庫的峰值訪問期間,讓大量并發訪問用戶在緩存器中排隊,避免了crl請求因無緩沖而被立即拒絕帶來的經濟損失,而且,有效降低存儲庫的峰值負荷。

With fast development of our country “ s gas industry and air ' s increasingly serious contamination in city , using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city . there are different problems in the current heating ( air conditioning ) systems . in the cogeneration system , heat and power affect each other , heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well , the cost of gas fuel in boilor heating sestem is so high . the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw , the heating scope is so limited . combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence , combined with a certain demonstrating project in beijing buesness community , going along with calculating and analyzing , drawing out some efficient datas and conclusions , based on this , bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system “ economics 熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高,內燃機雙源供暖(空調)系統的高發電效率僅限于100kw - 1000kw負荷范圍,供熱面積有限。對于大面積的商業園區、居民小區,燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖(空調)系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性,結合北京某一商業園區示范工程,進行了系統的計算與分析,得到了有效的數據與結論,在此基礎上,提出影響聯合循環雙源供暖(空調)系統經濟性的主要因素,并進行敏感性分析,得出有益的結論;最后通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解,并指出系統的優化方向。

Our new idea makes the users queue in the buffer at the time of peak access to avoid the economic losses for the sake of refusing client - side access in the case that no buffer is available at the repository “ s side . as argued in this report , the new method reduces the peak loads of repository effectively 該方法在存儲庫的峰值訪問期間,讓大量并發訪問用戶在緩存器中排隊,避免了crl請求因無緩沖而被立即拒絕帶來的經濟損失,而且,有效降低存儲庫的峰值負荷。

peak shaving

Secondly , based on the characteristic datum extracted from the datum of daily peak load , the probability model of the nature random part of power load is established ; the grey gm ( 1 , 1 ) model is improved to forecast the basis part of power load ; after the relation model is established on the basis of the researching the relationship between the climate part of power load and climate factors , the probability model of the climate part of power load is established combined with the tentative probability model of temperature 然后,在日最大負荷數據中提取自然隨機分量的特征數據,建立其概率模型并實現參數估計;改進灰色gm ( 1 , 1 )模型,完成年最大負荷中基礎負荷分量預測;研究氣候負荷與各氣候因素的關系,建立合理的氣候負荷與溫度關系模型,結合假設溫度概率模型,完成年最大負荷中氣候負荷分量的概率模型建立。

Environment protection becoming a focus in big cities , to meet the energy needs mainly by clean energy products is a prevailing trend . to promote energy conservation , heating system and charge policy is facing great reform . air - conditioner becoming necessity , the city electricity supply systems are confronted by peak load 當前我國大城市關注環保問題,城市能源結構調整勢在必行;民用供暖“分戶計量按熱取費”制度的建立與實現,是調動用戶節能積極性實現供暖節能目標的關鍵之所在;伴隨居民生活水平的提高,空調迅速普及給城市電網帶來巨大壓力。

With fast development of our country “ s gas industry and air ' s increasingly serious contamination in city , using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city . there are different problems in the current heating ( air conditioning ) systems . in the cogeneration system , heat and power affect each other , heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well , the cost of gas fuel in boilor heating sestem is so high . the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw , the heating scope is so limited . combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence , combined with a certain demonstrating project in beijing buesness community , going along with calculating and analyzing , drawing out some efficient datas and conclusions , based on this , bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system “ economics 熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高,內燃機雙源供暖(空調)系統的高發電效率僅限于100kw - 1000kw負荷范圍,供熱面積有限。對于大面積的商業園區、居民小區,燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖(空調)系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性,結合北京某一商業園區示范工程,進行了系統的計算與分析,得到了有效的數據與結論,在此基礎上,提出影響聯合循環雙源供暖(空調)系統經濟性的主要因素,并進行敏感性分析,得出有益的結論;最后通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解,并指出系統的優化方向。

Firstly , those factors affecting on annual peak load are divided into two part including tendency and randomicity , based on which , the divided load model is improved . at the same time , this thesis present the nature random part of power load , in order to study the random part of power load more accurately 首先,本文將影響年最大負荷變化的因素分為趨勢性與隨機性兩大類,從影響因素的角度改進年最大負荷的分解模型,細化隨機分量的研究,提出年最大負荷的自然隨機分量。

Not only the load magnitudes forecasting including electricity consumption and the peak load of the district , but also special load forecasting ( slf ) should be done for the load forecasting of the distribution network planning , so that the standard of the new equipment and the time and location of installation could be decided , and the reasonable planning could be made 配電網規劃的負荷預測不僅要進行地區年用電量和年峰值負荷的總量預測,還要確定負荷增長在地理上的分布,即空間負荷預測。這樣才能夠確定未來新增設備的規格、時間和地點等,才能對配電網做出合理的規劃。

But the grid voltage is different in many countries , so the research of an inverter , which can be used in many countries , will become a trend . a grid - connected inverter in grid - tied and off - grid modes has many advantages such as peak shaving to reduce the overall cost of power by generating during peak load hours in grid - tied mode , and standby generation to provide power during system outages until service can be restored in off - grid mode 由于世界各國電網電壓的規格繁多,能夠研制出適合于多個國家電網電壓規格的逆變器將是未來發展的一種趨勢;獨立與并網雙模式運行的逆變器由于具有緩解電網用電緊張、減少發電站的發電量、在電網斷電時對負載起不間斷供電的作用等優點,也成為現在研究的一個熱點。

Our new idea makes the users queue in the buffer at the time of peak access to avoid the economic losses for the sake of refusing client - side access in the case that no buffer is available at the repository “ s side . as argued in this report , the new method reduces the peak loads of repository effectively 該方法在存儲庫的峰值訪問期間,讓大量并發訪問用戶在緩存器中排隊,避免了crl請求因無緩沖而被立即拒絕帶來的經濟損失,而且,有效降低存儲庫的峰值負荷。

This present dissertation analyzed the practice of power price in china ’ s dsm by using quantitative method and qualitative method . though the price shifted part of peak load to the valley , and enhanced the electro - efficiency . it did not lead to the load ratio remarkably rise 盡管電價在我國電力需求側管理中具有移峰填谷的作用,提高了電能的使用效率,但是,價格杠桿的運用沒有帶來用電負荷率的大幅提高,電價對調荷節電的作用并不明顯。

To improve the economy of the peak load regulating operation for thermal power unit , the measures were detailed in three aspects : selecting a proper peak load regulating operation mode , optimizing the operation under a certain peak load regulating mode , the basic management for energy saving 摘要為改善火電機組調峰運行的經濟性,從調峰方式的選擇、一定調峰方式下優化運行、節能降耗基礎管理3個層次論述了調峰機組節能降耗的措施。

Through the analysis of application effect of heat - stored electric boiler in changdu hotel , the article brings forward that the system s benefit for the environmental protection and peak load shifting and improvement of the economic operation level of the power grid 摘要通過蓄熱式電鍋爐系統在昌都飯店的實際應用效果分析,提出采用該系統有利于保護生態環境,有利于電網移峰填谷,提高電網經濟運行水平。

In consideration of the special features of the power system of lhasa area , the station uses the surplus electricity to draw water and store energy when its load is at the lowest and discharges water to generate electricity at the peak load 為維護生態環境,按拉薩電力系統的特點、電站利用負荷低谷時的多余電量抽水蓄能負荷高峰時放水發電,總體上不改變羊卓雍湖的水量,以力保羊湖水位不下降。

With the development of electric power industry , it is required that higher dependability to the electric equipment . to improving the peak load capacity of power network , it is the trend that the large capacity steam turbine units take part in peak load operation 電力工業的發展,對機組設備的可靠性提出了更高的要求,大容量機組參與調峰運行更是提高電網調峰能力的必然趨勢。

Annual peak load is affected by multifarious factors , specially by local circumstance . at present , the methods of annual peak load forecasting are simple and low precision , and furthermore , none of these methods is considering of local circumstance 年最大負荷受多種因素影響,地區性特點強,目前的預測方法較為簡單,分析精度不高,且沒有針對地區特點的年最大負荷預測方法。

This thesis presents a probability method to forecast annual peak load based on the research of the divided load model , and a practical system has been successfully formed according to the actual circumstance of henan province 本文在分解模型的基礎上,提出年最大負荷概率分析與預測方法,并根據河南省的地區特點,成功地研制出一套適合河南省的年最大負荷概率分析與預測系統。

In order to improve the peak load regulation performance of boiler and decrease its consumption of oil , the burners were retrofitted by using adjustable horizontal concentrated - diluted pulverized coal burners combustion technology and small oil gun ignator 摘要為提高鍋爐低負荷調峰性能和降低鍋爐耗油量,利用可調水平濃淡燃燒技術和小油槍點火裝置,對燃燒器進行了改造。