本文選題：LED照明負荷　切入點：功率聚合　出處：《山東大學》2017年碩士論文

【摘要】：電力系統(tǒng)頻率是描述發(fā)電與負荷平衡的重要指標,傳統(tǒng)上主要依靠發(fā)電提供備用進行調(diào)整。隨著近幾年環(huán)保節(jié)能以及可持續(xù)發(fā)展的要求,系統(tǒng)發(fā)電裝機容量的結(jié)構(gòu)發(fā)生著顯著變化,可再生能源發(fā)電的比例有較大幅度提升,尤其以光伏發(fā)電與風力發(fā)電為主,這就導致系統(tǒng)提供備用的能力有所下降。與此同時,大容量火電機組發(fā)電提供備用的成本日益增加,僅僅依靠發(fā)電提供備用完成系統(tǒng)頻率的調(diào)整已經(jīng)力有不逮,這也是負荷側(cè)備用潛力發(fā)掘備受關(guān)注的原因。LED照明作為新一代照明技術(shù),光效高、能耗低、環(huán)保節(jié)能并且能夠通過調(diào)光實現(xiàn)功率控制,在全球范圍內(nèi)受到各國的大力推廣,前景廣闊。LED照明負荷的可調(diào)光特性,使其能在極短時間內(nèi)完成功率調(diào)整且不影響用戶的滿意度,以達到調(diào)節(jié)頻率的目的。照明負荷用電量約占全球用電量的20%,完全具備提供負荷備用的潛力。鑒于當前LED照明負荷的保有量有限,論文首先提出了基于馬爾可夫的LED照明負荷市場滲透率預測,將時間節(jié)點定在未來幾年后,對彼時LED負荷數(shù)量定量評估。雖然單個LED照明負荷提供的備用有限,但數(shù)量巨大的照明負荷提供的備用則相當可觀。為簡化LED照明負荷的功率聚合,提出基于工作特性的LED照明負荷分類,并在此基礎(chǔ)上利用蒙特卡洛抽樣方法完成LED照明負荷的聚合。在實現(xiàn)LED照明負荷功率聚合的前提下,考慮用戶滿意度以及相關(guān)照明標準,提出LED照明負荷提供備用的機制并建立描述其備用容量與相關(guān)影響因素之間關(guān)系的多項式模型。抽取不同影響因素進行大量實驗并獲取相關(guān)數(shù)據(jù),利用SPSS軟件對所提出模型進行回歸分析,得到多元線性模型的解析表達式并通過誤差分析驗證模型的精確性。最后利用獲得的模型在LED功率聚合的基礎(chǔ)上求取最大的備用容量。為實現(xiàn)LED照明負荷參與系統(tǒng)頻率的一次調(diào)整,要完成LED的調(diào)光控制并給出合理的控制策略。論文設(shè)計了 LED的驅(qū)動以及調(diào)光電路并通過仿真實現(xiàn)LED的PWM調(diào)光。在簡化的系統(tǒng)頻率控制模型基礎(chǔ)上,論文提出了 LED照明負荷參與的系統(tǒng)頻率控制模型,并參考系統(tǒng)的負荷頻率特性設(shè)計了單個LED照明負荷響應系統(tǒng)頻率的調(diào)節(jié)特性。考慮到實際室內(nèi)照明與單個LED調(diào)節(jié)特性的差別,利用ANN實現(xiàn)室內(nèi)照明調(diào)光水平與工作面照度的映射關(guān)系的描述,在參考LED照明負荷提供備用機制的基礎(chǔ)上,利用最優(yōu)控制理論得到室內(nèi)照明的最優(yōu)控制。根據(jù)設(shè)計的LED照明負荷調(diào)節(jié)特性提出了 LED參與系統(tǒng)一次調(diào)頻的控制策略,最后對LED照明負荷參與一次調(diào)頻進行仿真,驗證LED參與系統(tǒng)一次調(diào)頻的有效性。
[Abstract]:The frequency of power system is an important index to describe the power and load balance, mainly rely on traditional power adjustment to provide spare. In recent years with the environmental protection and sustainable development, significantly changing the structure of power system capacity, the proportion of renewable energy to power the increase by a large margin, especially in the photovoltaic power generation and wind electric power generation, which leads to the system ability to provide spare decline. At the same time, power generation large capacity thermal power units to provide spare cost increasing, relying solely on the power supply spare complete system frequency adjustment has been incompetent, this is also the interruptible load reserve to explore the potential reasons for concern.LED lighting as a new generation of lighting technology. High light efficiency, low energy consumption, environmental protection and energy saving and can realize the power control by dimming, heavily promoted countries in the global scope, prospect Adjustable optical properties of wide.LED lighting load, which can complete the power adjustment in a very short period of time and does not affect the user satisfaction, in order to regulate the frequency. Lighting load electricity consumption accounted for about 20% of global consumption, has provided load reserve potential. In view of the current LED lighting load have a limited amount of this paper put forward LED prediction based on Markov load lighting market penetration, the time node in the next few years, the number of quantitative assessment of wound LED load. While standby single LED lighting load and the limited but spare lighting load a huge number of offers is considerable. For the polymerization of simplified LED lighting load power. The LED lighting load classification based on the characteristics of work, and on the basis of Monte Carlo sampling method to complete polymerization LED lighting load. In the realization of LED lighting load power poly The premise of considering user satisfaction and related lighting standards, put forward LED lighting load backup mechanism and the relationship between the polynomial model developed to describe the reserve capacity and related factors. The influencing factors of different extraction experiments were carried out and access to relevant data, the proposed model regression analysis using SPSS software to obtain analytical accuracy the expression of multivariate linear model and the error analysis model for maximum reserve capacity. Finally using the model of polymerization in LED power. As an adjustment to achieve LED lighting load of system frequency, to complete the control strategy of dimming control and give a reasonable LED. The design of LED drive and dimming circuit and realizes the LED PWM dimming by simulation. In the simplified model based on the frequency control system, this paper proposes the LED negative lighting The system frequency control model bearing participation, and designed a single LED lighting load response characteristics of the system regulating the frequency of the reference load frequency characteristics of the system. Considering the actual indoor lighting with a single LED regulating characteristic difference, realize themapping relation between illuminance level and working lighting adjustable indoor surface using ANN's description of the basic mechanism in providing backup refer to the LED lighting load, using the optimal control theory to obtain the optimal indoor lighting control. According to the LED design of the lighting load regulation characteristics of proposed LED system primary frequency control strategy, finally the simulation of LED lighting load in a FM, verify the validity of LED in a FM system.

【學位授予單位】：山東大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM923.34

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本文編號：1680277