發(fā)布時間：2018-06-10 02:52

  本文選題：微電網(wǎng) + 準同期　； 參考：《電網(wǎng)技術(shù)》2014年11期

【摘要】：微電網(wǎng)中越來越多以電力電子裝置為接口的分布式電源采用模擬同步發(fā)電機的下垂控制策略來實現(xiàn)并網(wǎng)和孤島工況的運行及相互之間的切換。基于分布式電源下垂控制策略和傳統(tǒng)電網(wǎng)自動準同期并列裝置工作原理,分析了微電網(wǎng)系統(tǒng)準同期并網(wǎng)原理,將頻率調(diào)節(jié)和相角調(diào)節(jié)進行了統(tǒng)一,提出了一種微電網(wǎng)系統(tǒng)準同期并網(wǎng)的改進簡化方法。針對電網(wǎng)末端三相電壓不平衡等實際工況,采用正負序角度之和實現(xiàn)通信的傳輸,降低了對通信實時性的要求,增加負序分量的同步環(huán)節(jié),提出了一種弱電網(wǎng)工況微電網(wǎng)系統(tǒng)準同期并網(wǎng)
[Abstract]:In microgrid, more and more distributed power generation with power electronic device interface adopts droop control strategy of analog synchronous generator to realize the operation of grid-connected and islanding operation and the switching between each other. Based on the droop control strategy of distributed power generation and the working principle of traditional automatic quasi-synchronous parallel device, the principle of quasi-synchronous grid-connected microgrid system is analyzed, and the frequency regulation and phase angle regulation are unified. An improved and simplified method for quasi-synchronous grid-connected microgrid system is presented. Aiming at the unbalance of three-phase voltage at the end of power network, the sum of positive and negative sequence angle is used to realize the transmission of communication, which reduces the requirement of real-time communication and increases the synchronous link of negative sequence component. In this paper, a kind of quasi-synchronous grid-connected microgrid system under weak grid condition is proposed.
【作者單位】： 國家能源主動配電網(wǎng)技術(shù)研發(fā)中心(北京交通大學);
【基金】：國家863高技術(shù)基金項目(2011AA05A306)~~
【分類號】：TM73

【參考文獻】

相關(guān)期刊論文 前10條

1 楊琦;馬世英;李勝;唐曉駿;李曉s，

本文編號：2001727