本文選題：經(jīng)典法　切入點(diǎn)：電力系統(tǒng)　出處：《南昌大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：如今,電網(wǎng)系統(tǒng)發(fā)展的越來(lái)越迅速,電網(wǎng)規(guī)模也越來(lái)越大,隨之也出現(xiàn)了很多電力浪費(fèi)和損耗的現(xiàn)象,因此使得電力系統(tǒng)運(yùn)行的經(jīng)濟(jì)性達(dá)到最優(yōu)也是至關(guān)重要的環(huán)節(jié)。本文主要針對(duì)電力系統(tǒng)優(yōu)化中的經(jīng)典法進(jìn)行深入研究。在電力系統(tǒng)計(jì)算中,線性方程組、節(jié)點(diǎn)阻抗矩陣也是其中的一個(gè)重要組成部分。故本文也涉及到了線性方程組解法的研究、求解節(jié)點(diǎn)阻抗矩陣的多種方法的研究與比較分析,本文提出了三種新的求解節(jié)點(diǎn)阻抗矩陣的方法,并對(duì)這三種方法的計(jì)算原理和計(jì)算時(shí)間進(jìn)行比較;還針對(duì)電力系統(tǒng)潮流計(jì)算的PQ分解法還提出了一種可以加快求解速度的基于高斯-約當(dāng)消元法的新型因子表法,并與傳統(tǒng)的基于高斯消元法的因子表法進(jìn)行對(duì)比分析;在牛拉法中,雅可比矩陣的形成與消元是必不可少的環(huán)節(jié),故本文也在雅可比矩陣的形成方式上做了改進(jìn),提出了一種新的形成雅可比矩陣的方法,并加入了稀疏矩陣技術(shù),使得計(jì)算時(shí)間加快很多;另外本文分析了潮流計(jì)算的幾種基本算法,高斯-賽德?tīng)柗?牛拉法等,包括其意義、原理、基本方程等,還會(huì)對(duì)高斯-賽德?tīng)柍绷魉惴ê团ｎD-拉夫遜潮流算法的兩種坐標(biāo)形式的方法進(jìn)行對(duì)比研究,總結(jié)各自的優(yōu)缺點(diǎn),并從其中選擇一種求解網(wǎng)損微增率的方法進(jìn)行后續(xù)優(yōu)化的計(jì)算;同時(shí)會(huì)針對(duì)電力系統(tǒng)優(yōu)化經(jīng)典法的網(wǎng)損微增率的幾種求解方法的原理和求解公式做個(gè)詳細(xì)的介紹,分析這幾種方法的優(yōu)缺點(diǎn),之后介紹經(jīng)典法有功優(yōu)化和經(jīng)典法無(wú)功優(yōu)化的基礎(chǔ)模型、約束條件和計(jì)算流程,本文會(huì)用牛拉法求解潮流,接著根據(jù)經(jīng)典法的計(jì)算流程用算例的形式將經(jīng)典法有功優(yōu)化完整的表示出來(lái),也會(huì)探索出一些加快系統(tǒng)潮流和優(yōu)化求解的方法。
[Abstract]:Nowadays, the power grid system is developing more and more rapidly, and the scale of the power network is becoming larger and larger. Therefore, it is also very important to optimize the operation economy of power system. In this paper, the classical method of power system optimization is studied deeply. The nodal impedance matrix is also an important part of it. Therefore, this paper also involves the study of solving linear equations, the study and comparison of various methods for solving node impedance matrix. In this paper, three new methods to solve the node impedance matrix are proposed, and the calculation principle and calculation time of the three methods are compared. A new factor table method based on Gao Si-Jordan elimination method is also proposed for power flow calculation. It is compared with the traditional factor table method based on Gao Si elimination method. The formation and elimination of Jacobian matrix is an essential link in the Bullard method, so this paper also improves the formation of Jacobian matrix, proposes a new method to form Jacobian matrix, and adds the sparse matrix technique. In addition, this paper analyzes several basic algorithms for power flow calculation, such as Gauss Seidel method, Niulla method, etc., including its meaning, principle, basic equations, etc. We will also compare the two coordinate forms of Gauss-Seidel power flow algorithm and Newton-Raphson power flow algorithm, and summarize their advantages and disadvantages. From this method, a method to solve the differential increment rate of network loss is selected to carry out the subsequent optimization calculation, and the principle and formula of several methods for solving the power system optimization method of the power system optimization method are introduced in detail. After analyzing the advantages and disadvantages of these methods, this paper introduces the basic models, constraints and calculation flow of classical active power optimization and classical reactive power optimization. Then, according to the calculation flow of classical method, the optimization of active power of classical method is presented in the form of an example, and some methods to speed up the system power flow and optimize the solution will be explored.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM744

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本文編號(hào)：1620000