發(fā)布時間：2018-05-20 07:03

  本文選題：負荷頻率控制 + 魯棒性��； 參考：《華北電力大學(北京)》2017年博士論文

【摘要】：負荷頻率控制是保證電力系統(tǒng)穩(wěn)定運行的重要措施。隨著電力系統(tǒng)網(wǎng)絡復雜性的不斷增加,特別是市場環(huán)境下解除管制后電力市場的發(fā)展,負荷頻率控制魯棒性能和抗擾性能顯得更為重要。本文針對負荷頻率控制系統(tǒng)的結(jié)構(gòu)特性,提出分析分散負荷頻率控制下系統(tǒng)穩(wěn)定及魯棒性分析方法,并提出采用自抗擾控制方案提高負荷頻率控制系統(tǒng)的抗擾能力。主要研究內(nèi)容包括:1.針對多區(qū)域負荷頻率控制系統(tǒng)的結(jié)構(gòu)特征,提出分散負荷頻率控制下閉環(huán)系統(tǒng)穩(wěn)定性分析方法,并將閉環(huán)系統(tǒng)魯棒性分析分解成兩部分:局域系統(tǒng)參數(shù)魯棒性分析和聯(lián)絡線網(wǎng)絡拓撲魯棒性分析。該方案減小了系統(tǒng)魯棒性分析的復雜性,可以揭示聯(lián)絡線網(wǎng)絡拓撲對系統(tǒng)穩(wěn)定性的影響,為互聯(lián)電力系統(tǒng)網(wǎng)絡建設提供參考。2.針對負荷頻率控制系統(tǒng)的抗擾性能,提出采用自抗擾控制,利用自抗擾控制的在線擾動估計功能,提高系統(tǒng)抗擾能力。對負荷頻率控制系統(tǒng)的自抗擾控制階數(shù)及參數(shù)進行了分析,并對不同發(fā)電機組的電力系統(tǒng)提出參數(shù)整定方法。針對負荷頻率控制系統(tǒng)存在的發(fā)電速率約束問題,提出了針對自抗擾控制結(jié)構(gòu)的抗飽和補償方案。仿真表明,自抗擾控制參數(shù)整定簡單,性能強于普通PID控制器,在負荷頻率控制中具有較大應用價值。3.分析了電力市場環(huán)境下的負荷頻率控制系統(tǒng)結(jié)構(gòu),表明市場環(huán)境下合同負荷相當于在普通環(huán)境下增加了多處擾動,從而市場環(huán)境下負荷頻率控制系統(tǒng)需要具有更強的抗擾性能。分析了電力市場環(huán)境下分散負荷頻率控制系統(tǒng)的穩(wěn)定性,結(jié)果表明:合同負荷并不能改變普通環(huán)境下系統(tǒng)的穩(wěn)定性,因此市場環(huán)境下仍可以采用普通環(huán)境下的控制器設計方法,自抗擾控制是市場環(huán)境下負荷頻率控制設計的有效手段。
[Abstract]:Load frequency control is an important measure to ensure the stable operation of power system. With the increasing complexity of power system network, especially the development of power market after deregulation, the robust performance and anti-disturbance performance of load frequency control become more and more important. According to the structural characteristics of the load frequency control system, this paper presents a method to analyze the stability and robustness of the system under the distributed load frequency control, and proposes to improve the anti-disturbance ability of the load frequency control system by using the auto disturbance rejection control scheme. The main research contents include: 1. In view of the structural characteristics of multi-area load frequency control system, a method for stability analysis of closed-loop system under decentralized load frequency control is proposed. The closed-loop system robustness analysis is divided into two parts: the local system parameter robustness analysis and the tie-line network topology robustness analysis. This scheme reduces the complexity of system robustness analysis and reveals the influence of tie-line network topology on system stability and provides a reference for the construction of interconnected power system network. Aiming at the disturbance rejection performance of load frequency control system, an active disturbance rejection control and on-line disturbance estimation function of automatic disturbance rejection control are proposed to improve the disturbance rejection ability of the system. In this paper, the order and parameters of active disturbance rejection control for load frequency control system are analyzed, and the method of parameter setting for power system of different generator sets is proposed. In order to solve the generation rate constraint problem of load frequency control system, an anti-saturation compensation scheme is proposed for the active disturbance rejection control (ADRC) structure. The simulation results show that the ADRC parameter setting is simple and the performance is better than that of the conventional PID controller. It has great application value in load frequency control. The structure of load frequency control system in power market environment is analyzed. It is shown that the contract load under the market environment is equivalent to adding multiple disturbances in the ordinary environment, so the load frequency control system in the market environment needs stronger immunity performance. The stability of decentralized load frequency control system in power market environment is analyzed. The results show that the contract load can not change the stability of the system under ordinary environment, so the controller design method in general environment can still be adopted in the market environment. Active disturbance rejection control (ADRC) is an effective method to design load frequency control in market environment.
【學位授予單位】：華北電力大學(北京)
【學位級別】：博士
【學位授予年份】：2017
【分類號】：TM732;TP273

【參考文獻】

相關(guān)期刊論文 前10條

1 阮曉鋼;張曉銳;王丹陽;;三旋翼飛行器的建模及其姿態(tài)自抗擾控制[J];北京工業(yè)大學學報;2016年10期

2 陳增強;李毅;孫明瑋;張青;孫青林;;四旋翼無人飛行器ADRC-GPC控制[J];哈爾濱工業(yè)大學學報;2016年09期

3 張怡;劉向杰;;互聯(lián)電力系統(tǒng)魯棒分布式模型預測負荷頻率控制[J];控制理論與應用;2016年05期

4 陳上上;何英姿;劉賀龍;;線性自抗擾控制系統(tǒng)的魯棒穩(wěn)定性[J];控制理論與應用;2016年05期

5 劉一莎;楊晟萱;王偉;;四旋翼飛行器的自抗擾飛行控制方法[J];控制理論與應用;2015年10期

6 白玉;桑楠;;車輛主動懸架舒適性的自抗擾控制[J];解放軍理工大學學報(自然科學版);2015年06期

7 劉英培;梁海平;栗然;;基于無源性與自抗擾控制的雙饋風力發(fā)電系統(tǒng)研究[J];電工技術(shù)學報;2015年18期

8 涂雪芹;;基于蜂群算法的多目標加權(quán)優(yōu)化負荷頻率控制研究[J];計算機測量與控制;2015年02期

9 蔡國偉;張斌;王建元;楊德友;孫然;;云模型理論在互聯(lián)電力系統(tǒng)負荷頻率控制中的應用[J];中國電機工程學報;2015年02期

10 張超;朱紀洪;高亞奎;;自抗擾控制器的階次與參數(shù)的選取[J];控制理論與應用;2014年11期

，

本文編號：1913642