本文選題：電力系統(tǒng) + 廣域量測信息　； 參考：《東北電力大學(xué)》2017年碩士論文

【摘要】：全球能源互聯(lián)網(wǎng)戰(zhàn)略的提出擴(kuò)大了電網(wǎng)互聯(lián)規(guī)模、加快了新能源并網(wǎng)步伐,電網(wǎng)安全穩(wěn)定運(yùn)行受到嚴(yán)重威脅。傳統(tǒng)建模仿真方法受模型參數(shù)制約,其時(shí)效性無法滿足電網(wǎng)安全防控需求。廣域量測系統(tǒng)的發(fā)展給電網(wǎng)在線安全穩(wěn)定評估帶來機(jī)遇,可實(shí)現(xiàn)電網(wǎng)在線防控、實(shí)時(shí)評估、滿足防控要求。因此,在廣域環(huán)境下把握電網(wǎng)靜態(tài)穩(wěn)定機(jī)理,開展在線靜態(tài)安全穩(wěn)定評估研究,開發(fā)電網(wǎng)全景安全防御系統(tǒng)具有重要意義。本文首先探討了電網(wǎng)靜態(tài)穩(wěn)定機(jī)理。對戴維南等值參數(shù)辨識方法進(jìn)行了系統(tǒng)性歸納總結(jié)。分析了基于節(jié)點(diǎn)的戴維南等值和基于支路彈性映射的電網(wǎng)靜態(tài)穩(wěn)定機(jī)理,廣域環(huán)境下,兩者從本質(zhì)上都可以歸結(jié)為電網(wǎng)“源-網(wǎng)-荷”能量流動平衡性問題,進(jìn)而闡述了電網(wǎng)靜態(tài)穩(wěn)定統(tǒng)一分析機(jī)理。針對現(xiàn)有方法時(shí)效性的不足,建立了電網(wǎng)廣義并聯(lián)結(jié)構(gòu)模型。進(jìn)而,將電網(wǎng)所有發(fā)電節(jié)點(diǎn)和負(fù)荷節(jié)點(diǎn)分別聚合為一個總的源點(diǎn)和荷點(diǎn),構(gòu)建了電網(wǎng)廣義“源-網(wǎng)-荷”兩節(jié)點(diǎn)系統(tǒng)。分別對等效系統(tǒng)發(fā)電功率、負(fù)荷功率、電流、電壓相角進(jìn)行求取。借鑒彈性映射思想將等效系統(tǒng)映射為兩節(jié)點(diǎn)彈性支路,提出了一種基于“源-網(wǎng)-荷”等效和彈性映射的電網(wǎng)整體靜態(tài)穩(wěn)定快速評估方法。以IEEE 39節(jié)點(diǎn)系統(tǒng)為例對整體穩(wěn)定性和各分區(qū)穩(wěn)定性分別進(jìn)行了計(jì)算,結(jié)果驗(yàn)證了所提方法的可行性。該方法與勢能積分法相比計(jì)算量小,計(jì)算速度快,更適合在線應(yīng)用。針對電網(wǎng)量化評估的不足,基于電網(wǎng)靜態(tài)輸電能力,在阻抗模指標(biāo)基礎(chǔ)上推導(dǎo)了具有等價(jià)意義的功率模指標(biāo)。將電網(wǎng)廣義“源-網(wǎng)-荷”等效系統(tǒng)與功率模指標(biāo)結(jié)合,實(shí)現(xiàn)了大電網(wǎng)整體靜態(tài)穩(wěn)定態(tài)勢的快速量化評估。兩節(jié)點(diǎn)和IEEE 39節(jié)點(diǎn)系統(tǒng)仿真結(jié)果驗(yàn)證了所提方法的有效性和實(shí)用性。該方法避免了具有不確定因素的戴維南等效參數(shù)辨識環(huán)節(jié),將電網(wǎng)靜態(tài)穩(wěn)定指標(biāo)量化到0-1之間,滿足了在線、量化評估電網(wǎng)安全穩(wěn)定要求。研究了國內(nèi)外電網(wǎng)可視化技術(shù)發(fā)展現(xiàn)狀,提出了基于ECharts的電網(wǎng)Web可視化技術(shù)。詳細(xì)分析了電網(wǎng)安全防御系統(tǒng)功能需求,對可視化框架進(jìn)行了搭建�；赪AMS信息,利用大數(shù)據(jù)技術(shù)計(jì)算基于廣義“源-網(wǎng)-荷”等效的電網(wǎng)靜態(tài)穩(wěn)定量化指標(biāo)。開發(fā)了電網(wǎng)全景安全防御可視化系統(tǒng),形象直觀的展示了電網(wǎng)關(guān)鍵信息,實(shí)現(xiàn)了電網(wǎng)運(yùn)行態(tài)勢的實(shí)時(shí)監(jiān)控,提高了電網(wǎng)安全防御能力。綜上所述,本文基于電網(wǎng)實(shí)測或仿真信息,在戴維南等值參數(shù)辨識、大電網(wǎng)廣義“源-網(wǎng)-荷”等效、電網(wǎng)整體靜態(tài)穩(wěn)定指標(biāo)以及電網(wǎng)安全防御系統(tǒng)可視化等方面做了比較全面研究。提出了相應(yīng)模型和方法,仿真算例效果較好。
[Abstract]:The global energy Internet strategy has expanded the scale of power grid interconnection, accelerated the pace of new energy grid connection, and seriously threatened the safe and stable operation of power grid.The traditional modeling and simulation method is restricted by the model parameters, and its timeliness can not meet the demand of power grid safety prevention and control.The development of wide-area measurement system brings opportunities for on-line security and stability evaluation of power grid. It can realize on-line prevention and control, real-time evaluation, and meet the requirements of prevention and control.Therefore, it is of great significance to grasp the mechanism of power grid static stability in wide area environment, to carry out the online static security and stability evaluation research and to develop the panoramic security defense system of power grid.In this paper, the mechanism of static stability of power system is discussed.Thevenin's equivalent parameter identification method is systematically summarized.The static stability mechanism of power grid based on node Davinan equivalence and branch elastic mapping is analyzed. In wide area environment, both of them can be attributed to the energy flow equilibrium problem of "source-net-load".Furthermore, the unified analysis mechanism of static stability of power grid is expounded.Aiming at the shortage of the existing methods, the generalized parallel structure model of power network is established.Furthermore, all generation nodes and load nodes are aggregated into a total source point and a load point respectively, and a generalized "source-net-load" two-node system is constructed.The generation power, load power, current and voltage phase angle of the equivalent system are calculated respectively.Based on the idea of elastic mapping, the equivalent system is mapped into a two-node elastic branch, and a fast static stability evaluation method based on "source-net-load" equivalence and elastic mapping is proposed.Taking the IEEE 39-bus system as an example, the global stability and the regional stability are calculated, and the results show that the proposed method is feasible.Compared with the potential energy integration method, this method is more suitable for online application.In view of the deficiency of the quantitative evaluation of the power network, the equivalent power module index is derived based on the impedance modulus index based on the static transmission capacity of the power network.By combining the generalized "source-net-load" equivalent system with the power module index, the rapid quantitative evaluation of the overall static stability situation of large power grid is realized.The effectiveness and practicability of the proposed method are verified by the simulation results of two nodes and IEEE 39 bus system.This method avoids the identification link of Davinan equivalent parameters with uncertain factors, quantifies the static stability index of power network to 0-1, and meets the requirements of on-line and quantitative evaluation of power grid security and stability.This paper studies the present situation of power grid visualization technology at home and abroad, and puts forward the grid Web visualization technology based on ECharts.The functional requirements of grid security defense system are analyzed in detail, and the visual framework is built.Based on WAMS information, big data technique is used to calculate the equivalent static stability quantization index of power grid based on generalized source-net-load.The visual system of panoramic security defense of power network is developed. The key information of power network is displayed visually and the real-time monitoring of power grid running situation is realized. The security defense capability of power grid is improved.To sum up, based on the measured or simulated information of power network, the equivalent parameter identification in Davinan, the generalized "source-net-load" equivalence of large power grid, is presented in this paper.The overall static stability index and the visualization of power grid security defense system are studied comprehensively.The corresponding model and method are put forward, and the simulation results are good.
【學(xué)位授予單位】：東北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM712

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 章銳;陳樹勇;劉道偉;馬世英;肖白;;戴維南等值參數(shù)辨識方法綜述[J];電網(wǎng)技術(shù);2017年01期

2 章銳;劉道偉;陳樹勇;馬世英;鄧春宇;史夢潔;吳茜;;信息驅(qū)動的大電網(wǎng)全景安全防御系統(tǒng)可視化設(shè)計(jì)[J];電力信息與通信技術(shù);2016年12期

3 李柏青;劉道偉;秦曉輝;嚴(yán)劍峰;;信息驅(qū)動的大電網(wǎng)全景安全防御概念及理論框架[J];中國電機(jī)工程學(xué)報(bào);2016年21期

4 王子毅;張春海;;基于ECharts的數(shù)據(jù)可視化分析組件設(shè)計(jì)實(shí)現(xiàn)[J];微型機(jī)與應(yīng)用;2016年14期

5 ，

本文編號：1768880