本文選題：電壓穩(wěn)定　切入點(diǎn)：視在功率傳輸　出處：《電力系統(tǒng)自動(dòng)化》2017年07期 　論文類型：期刊論文

【摘要】：正確認(rèn)識(shí)電壓失穩(wěn)機(jī)理是進(jìn)一步對(duì)電力系統(tǒng)電壓穩(wěn)定問(wèn)題進(jìn)行深入研究的關(guān)鍵。分析了網(wǎng)絡(luò)視在功率傳輸特性和感應(yīng)電動(dòng)機(jī)負(fù)荷特性,揭示了以感應(yīng)電動(dòng)機(jī)為核心的暫態(tài)電壓失穩(wěn)正反饋動(dòng)態(tài)過(guò)程。將與滑差相關(guān)的感應(yīng)電動(dòng)機(jī)負(fù)荷及網(wǎng)絡(luò)視在功率傳輸?shù)南嗷プ饔藐P(guān)系定義為感應(yīng)電動(dòng)機(jī)網(wǎng)荷互饋特性,并據(jù)此進(jìn)一步分析了含有感應(yīng)電動(dòng)機(jī)負(fù)荷的系統(tǒng)電壓崩潰過(guò)程,明確了基于感應(yīng)電動(dòng)機(jī)網(wǎng)荷互饋特性的暫態(tài)電壓失穩(wěn)機(jī)理,提出了感應(yīng)電動(dòng)機(jī)負(fù)荷電壓失穩(wěn)判據(jù),構(gòu)建了簡(jiǎn)單系統(tǒng)算例驗(yàn)證分析結(jié)果。分析表明,以感應(yīng)電動(dòng)機(jī)為核心的電壓失穩(wěn)正反饋動(dòng)態(tài)過(guò)程是系統(tǒng)暫態(tài)電壓失穩(wěn)的重要環(huán)節(jié);將感應(yīng)電動(dòng)機(jī)故障切除時(shí)滑差對(duì)應(yīng)的恢復(fù)電壓作為判斷感應(yīng)電動(dòng)機(jī)電壓穩(wěn)定的必要條件,能夠提高暫態(tài)電壓失穩(wěn)判定的準(zhǔn)確性與適用性。所述電壓穩(wěn)定判據(jù)為預(yù)防電壓失穩(wěn)現(xiàn)象的發(fā)生和制定電壓失穩(wěn)解決措施提供了有力的理論支撐。
[Abstract]:A correct understanding of the mechanism of voltage instability is the key to further study the voltage stability of power system. The characteristics of network apparent power transmission and induction motor load are analyzed. The dynamic process of transient voltage instability positive feedback based on induction motor is revealed. The interaction between load and network apparent power transmission of induction motor related to slip is defined as the characteristics of reciprocal feedback of induction motor network load. Based on this, the system voltage collapse process with induction motor load is further analyzed, and the transient voltage instability mechanism based on the characteristics of induction motor network load mutual feed is clarified, and the load voltage instability criterion of induction motor is proposed. A simple system example is built to verify the analysis results. The analysis shows that the dynamic process of voltage instability positive feedback with induction motor as the core is an important link of transient voltage instability. When the fault of induction motor is removed, the recovery voltage corresponding to slip difference is taken as the necessary condition to judge the voltage stability of induction motor. It can improve the accuracy and applicability of the transient voltage instability determination. The voltage stability criterion provides a powerful theoretical support for preventing the occurrence of the voltage instability phenomenon and formulating the voltage instability resolution measures.
【作者單位】： 南瑞集團(tuán)公司(國(guó)網(wǎng)電力科學(xué)研究院)(北京);河海大學(xué)能源與電氣學(xué)院;V锿轎魘〉緦?duì)公耍?

本文編號(hào)：1621027