本文選題：源網(wǎng) + 電壓差值��； 參考：《電工技術(shù)學報》2017年13期

【摘要】：發(fā)電廠的電壓控制是電網(wǎng)運行安全性和經(jīng)濟性的基礎(chǔ)。本文以電網(wǎng)有功損耗最小為目標,分析了無功負荷在發(fā)電廠和電網(wǎng)之間最優(yōu)分配方式,揭示了發(fā)電廠實現(xiàn)最優(yōu)無功出力的影響因素,提出了反映電廠電壓控制與系統(tǒng)調(diào)壓需求相匹配的評價指標,即電廠高壓母線與樞紐母線之間的源網(wǎng)電壓差值。并通過分析影響該指標取值的變量,優(yōu)化計算,從而獲取電網(wǎng)在不同運行方式下電壓差值的最優(yōu)值;進而對不同運行方式下最優(yōu)電壓差值進行局部統(tǒng)一、分檔差異化處理;最后結(jié)合樞紐母線電壓的預測值,進行發(fā)電廠日電壓控制曲線的優(yōu)化制定。算例結(jié)果證明了該方法簡單實用,而且無功優(yōu)化效果好。
[Abstract]:The voltage control of power plant is the basis of power network operation safety and economy. Aiming at the minimum active power loss, the optimal distribution of reactive power load between power plant and power network is analyzed in this paper, and the influencing factors of optimal reactive power output in power plant are revealed. An evaluation index which reflects the matching of power plant voltage control and system voltage regulation is proposed, that is, the voltage difference between the high voltage bus and the hub bus of the power plant. By analyzing the variables that affect the value of the index and optimizing the calculation, the optimal value of the voltage difference of the power network under different operation modes is obtained, and then the optimal voltage difference under the different operation mode is locally unified, and the differential processing is done. Finally, the daily voltage control curve of power plant is optimized by combining with the forecast value of bus voltage. The example shows that the method is simple and practical, and the effect of reactive power optimization is good.
【作者單位】： 華南理工大學廣東省綠色能源技術(shù)重點實驗室;深圳供電局有限公司;
【基金】：國家自然科學基金資助項目(51377060)
【分類號】：TM62;TM761.12
，

本文編號：1838857