1000MW級機(jī)組接入220kV電網(wǎng)技術(shù)條件研究
發(fā)布時間:2018-06-17 22:38
本文選題:MW級機(jī)組 + kV電網(wǎng); 參考:《電網(wǎng)與清潔能源》2016年09期
【摘要】:隨著負(fù)荷和網(wǎng)架的發(fā)展,近年來負(fù)荷中心的1 000 MW級機(jī)組電力就近消納的趨勢越來越明顯,但1 000 MW級接入220 kV電網(wǎng)目前還處于探索階段,缺乏實(shí)際運(yùn)行經(jīng)驗(yàn)。研究1 000 MW級機(jī)組接入220 kV電網(wǎng)的積極效用和對電網(wǎng)運(yùn)行的影響,尋找限制接入的主要因素;將制約因素轉(zhuǎn)換為對系統(tǒng)短路容量和機(jī)組接入距離的要求,在同一個坐標(biāo)系內(nèi)利用圖解法進(jìn)行分析。結(jié)果較為直觀地體現(xiàn)了各因素的不同影響效力。以上海某220 kV電網(wǎng)為例,提出開展1 000 MW級機(jī)組接入220 kV電網(wǎng)試點(diǎn)的設(shè)想,得出了在某些典型供電分區(qū)內(nèi)1 000 MW機(jī)組接入220 kV電網(wǎng)的主要技術(shù)條件。
[Abstract]:With the development of load and grid, in recent years, it is more and more obvious that the power of 1 000 MW units in the load center is getting closer and lower. However, it is still in the exploration stage for 1 000 MW to connect to 220 kV power network, and it is lack of practical operation experience. This paper studies the positive utility of 1 000 MW units connecting to 220 kV power network and its influence on the operation of the network, finds out the main factors restricting the access, and converts the restrictive factors into the requirements for the short circuit capacity of the system and the access distance of the units. In the same coordinate system, the graphic method is used to analyze. Results the effects of different factors were reflected intuitively. Taking a 220 kV power network in Shanghai as an example, this paper puts forward a tentative idea of connecting 1 000 MW units to 220 kV power network, and obtains the main technical conditions for 1 000 MW units to connect to 220 kV power network in some typical power supply zones.
【作者單位】: 國網(wǎng)上海市電力公司;中國電力工程顧問集團(tuán)華東電力設(shè)計院有限公司;
【基金】:國家自然基金資助項(xiàng)目(51307104)~~
【分類號】:TM732
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