基于最優(yōu)補償特性的2型PSS參數(shù)擬合軟件開發(fā)
劉文飛,楊勇
(國網(wǎng)甘肅省電力公司電力科學(xué)研究院,甘肅 蘭州 730030)
摘 要:電力系統(tǒng)穩(wěn)定器 (PSS) 參數(shù)整定試驗過程操作復(fù)雜且過多依賴試驗人員經(jīng)驗。針對國內(nèi)普遍應(yīng)用的 2 型 PSS,提出一種基于最優(yōu)補償特性的 PSS 控制參數(shù)自適應(yīng)擬合方法。分析了 PSS 的最優(yōu)補償特性,在考慮運行約束的條件下,建立了以補償特性與最優(yōu)補償特性方差最小為目標(biāo)的 PSS 控制參數(shù)自適應(yīng)擬合模型,該模型可自動匹配發(fā)電機組勵磁系統(tǒng)的無補償特性,在一定誤差范圍內(nèi)尋求 PSS 最優(yōu)的控制參數(shù)。編寫程序算法求解,實現(xiàn)了 PSS 控制參數(shù)的快速計算。實際工程應(yīng)用表明,應(yīng)用該方法計算的 PSS 參數(shù)控制效果良好,具有良好的工程應(yīng)用價值。
關(guān)鍵詞:電力系統(tǒng)穩(wěn)定器;參數(shù)擬合;最優(yōu)相位補償;自適應(yīng)
中圖分類號:TM712 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2021)07-0030-04
Parameter Fitting Software Development for 2 PSS Based on
Optimal Compensation
LIU Wen-fei, YANG Yong
(State Grid Gansu Electric Power Research Institute, Lanzhou 730030, China)
Abstract: The parameter setting test of power system stabilizer (PSS) is complicated and is dependent too much on the experience of test personnel. An adaptive fitting method for 2 PSS control parameters based on optimal phase compensation is proposed because of repeated iteration and verification for the traditional 2 PSS parameter tuning. The optimal phase compensation characteristic of PSS is analyzed. Then an adaptive fitting model of PSS control parameters with minimum variance between compensation component and optimal compensation is built under the condition of limited performance. This model can automatically match the frequency characteristic of the excitation system of generator sets to find the optimal PSS control parameters within a certain error range. The programmed algorithm is written to achieve fast calculation of PSS control parameters. The practical application shows that this method is of great use to calculate the controlling effects of PSS parameters, and of great value to be applied.
Key words: power system stabilizer; parameter fitting; optimal phase compensation; adaptive
參考文獻(xiàn)
[1] 吳復(fù)霞,王金健,潘家駿,等. 電力系統(tǒng)穩(wěn)定器的配置方法[J]. 中國電力,2016,49(9) :13-17.
[2] 劉玉方,徐珂. 電力系統(tǒng)穩(wěn)定器 PSS2B 參數(shù)整定軟件的開發(fā)與應(yīng)用[J] . 電氣應(yīng)用,2017,36(8) :16-20.
[3] 牛玉廣,楊巍,李曉明,等. 雙饋風(fēng)機神經(jīng)電力系統(tǒng)穩(wěn)定器設(shè)計與仿真研究[J] . 系統(tǒng)仿真學(xué)報,2017,29(1) :162-169.
[4] 吳跨宇,盧岑岑,吳龍,等. 一種新型雙信號電力系統(tǒng)穩(wěn)定器及其仿真研究[J] . 電網(wǎng)技術(shù),2016,40(5) :1462-1468.
[5] 周濤,陳中,郭瑞興. 基于閉環(huán)阻尼轉(zhuǎn)矩分析法的電力系統(tǒng)穩(wěn)定器參數(shù)整定[J] . 電力系統(tǒng)自動化,2016,40(18) :56-60.
[6] SYAHPUTRA R , SOESANTI I . Power System Stabilizer Model Based on Fuzzy-PSO for Improving Power System Stability[C]//International Conference on Advanced Mechatronics, Intelligent Manufacture, and Industrial Automation,2016 :1231-1238.
[7] 李建國,李福利. 電力系統(tǒng)穩(wěn)定器抑制低頻振蕩的原理與應(yīng)用[J] . 水利技術(shù)監(jiān)督,2016,24(6) :103-107.
[8] 楊林,蘇田宇,蔡暉,等. 基于降階算法的電力系統(tǒng)穩(wěn)定器分段設(shè)計[J]. 電氣應(yīng)用,2017,36(14) :69-74.