【摘要】：本文旨在對(duì)電力系統(tǒng)的頻率動(dòng)態(tài)特性和一次調(diào)頻控制對(duì)系統(tǒng)的安全穩(wěn)定運(yùn)行的影響問題進(jìn)行深入的研究分析,使得復(fù)雜電力系統(tǒng)中的一次調(diào)頻容量得到合理的配置和不同類型發(fā)電機(jī)組的一次調(diào)頻容量得到合理的分配,更好的為系統(tǒng)改善供電質(zhì)量。 本文首先介紹電力系統(tǒng)的頻率特性,著重分析電力系統(tǒng)中的靜態(tài)頻率特性和動(dòng)態(tài)頻率特性,對(duì)頻率的動(dòng)態(tài)變化過程進(jìn)行仿真計(jì)算,分析簡(jiǎn)單電力系統(tǒng)中頻率動(dòng)態(tài)變化的影響因素；然后介紹電力系統(tǒng)的一次調(diào)頻原理和系統(tǒng)動(dòng)態(tài)模型的各元件的分析模型,對(duì)不同類型的發(fā)電機(jī)組參與系統(tǒng)頻率一次調(diào)節(jié)特性進(jìn)行研究分析；最后根據(jù)不同類型的發(fā)電機(jī)組建立多機(jī)系統(tǒng)的一次調(diào)頻模型,對(duì)多機(jī)系統(tǒng)的一次調(diào)頻模型進(jìn)行一次調(diào)頻容量進(jìn)行優(yōu)化和仿真,得到合理的一次調(diào)頻容量?jī)?yōu)化分配策略,分析不同類型發(fā)電機(jī)組在參與頻率一次調(diào)節(jié)過程中的優(yōu)點(diǎn)和缺點(diǎn),總結(jié)出多機(jī)系統(tǒng)的一次調(diào)頻的特性。 單機(jī)系統(tǒng)的頻率動(dòng)態(tài)變化過程是假設(shè)在發(fā)電機(jī)組之間的聯(lián)系是緊密的基礎(chǔ)上來分析的,通過推導(dǎo)其單機(jī)模型的頻率動(dòng)態(tài)變化的公式可以獲得其動(dòng)態(tài)頻率變化曲線是一條固定時(shí)間常數(shù)衰減的指數(shù)曲線。多機(jī)系統(tǒng)的頻率動(dòng)態(tài)變化過程主要表現(xiàn)為系統(tǒng)產(chǎn)生不平衡功率時(shí),各個(gè)不同地理位置的節(jié)點(diǎn)頻率會(huì)因?yàn)閿_動(dòng)和各在線機(jī)組的調(diào)節(jié)發(fā)生一個(gè)不同的動(dòng)態(tài)變化過程。簡(jiǎn)單的電力系統(tǒng)是通過迭代計(jì)算得到頻率的動(dòng)態(tài)變化曲線,得到的仿真曲線再進(jìn)行簡(jiǎn)單電力系統(tǒng)有功功率缺額的大小、負(fù)荷頻率特性、系統(tǒng)慣性時(shí)間常數(shù)等對(duì)系統(tǒng)頻率動(dòng)態(tài)變化過程的影響分析。 不同類型發(fā)電機(jī)組參與系統(tǒng)頻率的一次調(diào)頻特性分析,主要是在介紹系統(tǒng)一次調(diào)頻原理及作用的情況下,根據(jù)系統(tǒng)中的發(fā)電機(jī)、調(diào)速系統(tǒng)、負(fù)荷和網(wǎng)絡(luò)結(jié)構(gòu)等系統(tǒng)元件推導(dǎo)的模型,利用Matlab的動(dòng)態(tài)仿真平臺(tái)構(gòu)建三九節(jié)點(diǎn)的系統(tǒng)進(jìn)行分析研究,區(qū)別火電機(jī)組和水電機(jī)組參與系統(tǒng)頻率一次調(diào)節(jié)的前提下,對(duì)涉及不同節(jié)點(diǎn)、不同容量規(guī)模和不同運(yùn)行方式下的頻率一次調(diào)節(jié)動(dòng)態(tài)響應(yīng)過程進(jìn)行仿真分析。 考慮不同類型發(fā)電機(jī)組參與系統(tǒng)頻率一次調(diào)頻容量?jī)?yōu)化問題可以描述為：在給定系統(tǒng)最大發(fā)電失去量和系統(tǒng)總的一次調(diào)頻容量的條件下,在滿足系統(tǒng)運(yùn)行約束的情況下,通過改進(jìn)粒子群優(yōu)化算法對(duì)一次調(diào)頻容量在各機(jī)組間的分配進(jìn)行優(yōu)化,從而使整個(gè)系統(tǒng)的頻率變化過程的調(diào)頻綜合性能指標(biāo)最優(yōu)。另一方面通過多機(jī)系統(tǒng)的一次調(diào)頻模型的仿真,給定頻率偏差的情況下對(duì)系統(tǒng)的最大承受負(fù)荷擾動(dòng)的能力進(jìn)行對(duì)比分析及其合理的一次調(diào)頻容量配置優(yōu)化。 復(fù)雜電力系統(tǒng)中有必要分析多種類的發(fā)電機(jī)組參與電網(wǎng)頻率一次調(diào)節(jié)的特性,同時(shí)合理的協(xié)調(diào)各發(fā)電機(jī)組參與系統(tǒng)頻率一次調(diào)節(jié)的一次調(diào)頻容量對(duì)于提高電力系統(tǒng)頻率安全穩(wěn)定運(yùn)行成為了關(guān)鍵性問題,合理的優(yōu)化一次調(diào)頻容量分配及其配置不但能夠減少系統(tǒng)能源的損失,而且能夠更好的改善電能質(zhì)量,提高整個(gè)系統(tǒng)的安全穩(wěn)定。
[Abstract]:The purpose of this paper is to carry out in-depth research and analysis on the frequency dynamic characteristics of power system and the influence of primary frequency modulation control on the safe and stable operation of the system. So that the primary frequency modulation capacity in the complex power system is reasonably distributed and the primary frequency modulation capacity of different types of generating sets is reasonably distributed, and the power supply quality is better improved for the system. In this paper, the frequency characteristic of the power system is introduced, the static frequency characteristic and the dynamic frequency characteristic in the power system are analyzed, the dynamic process of the frequency is simulated and calculated, and the influence of the dynamic change of the frequency in the simple power system is analyzed. In this paper, the primary frequency modulation principle of the power system and the analytical model of each element of the system dynamic model are introduced, the frequency of the system frequency is analyzed and analyzed for different types of generator sets, and the primary frequency modulation mode of the multi-machine system is finally set up according to different types of generator sets. The primary frequency modulation capacity of a multi-machine system is optimized and simulated, and a reasonable one-time frequency modulation capacity optimization distribution strategy is obtained, and the advantages and disadvantages of different types of generating sets in the one-time adjustment process of the participating frequency are analyzed. Point, summarize the frequency modulation of the multi-machine system. The frequency change process of the single-machine system is based on the assumption that the relation between the generator sets is closely related, and the dynamic frequency change curve of the single-machine system can be obtained by deriving the formula of the frequency change of the single-machine model, which is the finger of the fixed time constant attenuation. The frequency dynamic change process of the multi-machine system mainly shows that when the system generates unbalanced power, the node frequency of each different geographical position can be changed by a different dynamic change due to the disturbance and the regulation of each on-line unit The simple power system is to calculate the dynamic change curve of the frequency by the iterative calculation, the obtained simulation curve can be used for simple power system active power shortage, the load frequency characteristic, the system inertia time constant and the like to the system frequency dynamic change process In response to the analysis, the primary frequency modulation characteristics of the system frequency of different types of generator sets are analyzed, and the system components such as the generator, the speed governing system, the load and the network structure in the system are mainly introduced in the case of the primary frequency modulation principle and the function of the system. The model is derived, and the system of the three-nine nodes is constructed by the dynamic simulation platform of Matlab. and the frequency of different nodes, different capacity scales and different operating modes can be adjusted in a dynamic response process at one time, The simulation and analysis of the frequency primary frequency modulation capacity of different types of generator sets can be described as follows: under the condition of the maximum power generation loss of the given system and the total primary frequency modulation capacity of the system, the system can be used to meet the system transportation. by improving the particle swarm optimization algorithm, the distribution of the primary frequency modulation capacity among the units is optimized by improving the particle swarm optimization algorithm, so that the frequency modulation heddle of the frequency change process of the whole system The performance index is the best. On the other hand, by the simulation of the one-time frequency modulation model of the multi-machine system, the ability of the maximum load disturbance of the system under the condition of the given frequency deviation is compared and analyzed and the reasonable one-time adjustment The frequency capacity configuration is optimized. It is necessary to analyze the characteristics of multi-type generator set in the frequency of the power grid at one time in the complex power system. At the same time, it is reasonable to coordinate the primary frequency modulation capacity of each generator set in the frequency adjustment of the system, so as to improve the frequency safety and stability of the power system The line becomes a key problem, and the reasonable optimization of the primary frequency modulation capacity allocation and the configuration can not only reduce the loss of the energy of the system, but also can better improve the electric energy quality and improve the electric energy quality,
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM712

【引證文獻(xiàn)】

相關(guān)期刊論文 前3條

1 陶騫;陳瓊瓊;崔一鉑;陳文;游力;;基于粒子群算法的一次調(diào)頻參數(shù)優(yōu)化研究[J];貴州電力技術(shù);2015年12期

2 馬曉光;;煤矸石電廠一次調(diào)頻系統(tǒng)優(yōu)化及應(yīng)用分析[J];科技創(chuàng)新導(dǎo)報(bào);2015年29期

3 鄧奇超;劉尚明;孫暉;;燃?xì)廨啓C(jī)神經(jīng)網(wǎng)絡(luò)前饋控制對(duì)一次調(diào)頻的影響[J];熱力透平;2015年02期

相關(guān)碩士學(xué)位論文 前2條

1 陳曉梅;發(fā)電機(jī)組頻率特性分析與機(jī)網(wǎng)協(xié)調(diào)策略研究[D];華南理工大學(xué);2015年

2 羅宏健;虛擬同步發(fā)電機(jī)特性的能量型儲(chǔ)能系統(tǒng)控制策略研究[D];電子科技大學(xué);2015年

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本文編號(hào)：2509009