本文關(guān)鍵詞：風(fēng)電場(chǎng)集群無功電壓協(xié)調(diào)控制研究　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 風(fēng)電場(chǎng)集群 無功功率控制 電壓控制 協(xié)調(diào)控制

【摘要】：隨著風(fēng)電并網(wǎng)容量的增加,大規(guī)模風(fēng)電并網(wǎng)給電力系統(tǒng)帶來的無功電壓?jiǎn)栴}越來越突出,大規(guī)模風(fēng)電并網(wǎng)后的無功電壓控制是電網(wǎng)目前亟待解決的問題。目前國內(nèi)的風(fēng)電場(chǎng)大多采取集中式并網(wǎng),由幾個(gè)到十幾個(gè)風(fēng)電場(chǎng)組成的風(fēng)電場(chǎng)集群在空間上相互鄰近,彼此間電氣聯(lián)系緊密,可將這些風(fēng)電場(chǎng)與集中接入的匯集變電站作為一個(gè)整體進(jìn)行協(xié)調(diào)控制。建立統(tǒng)一的協(xié)調(diào)控制模式,將對(duì)提高風(fēng)電場(chǎng)集群區(qū)域的電壓穩(wěn)定和降低網(wǎng)損有明顯的改善效果,從而進(jìn)一步增強(qiáng)電網(wǎng)接納風(fēng)電的能力。 本文首先研究了風(fēng)電場(chǎng)無功電壓調(diào)節(jié)能力,詳細(xì)分析了普通異步風(fēng)電機(jī)組、雙饋感應(yīng)風(fēng)電機(jī)組、直驅(qū)式永磁同步風(fēng)電機(jī)組的無功電壓調(diào)節(jié)能力,以及風(fēng)電場(chǎng)內(nèi)不同類型無功補(bǔ)償設(shè)備的無功電壓調(diào)節(jié)能力。 其次,設(shè)計(jì)了風(fēng)電場(chǎng)集群無功電壓控制系統(tǒng)的總體構(gòu)架、通信接口、數(shù)據(jù)交換內(nèi)容以及系統(tǒng)主要模塊功能�？紤]風(fēng)電場(chǎng)間協(xié)調(diào)配合、風(fēng)電場(chǎng)與匯集變電站間協(xié)調(diào)配合,提出了風(fēng)電場(chǎng)集群的無功電壓協(xié)調(diào)控制策略,具體包括風(fēng)電場(chǎng)集群的電壓優(yōu)化控制策略,風(fēng)電場(chǎng)集群的電壓越限控制策略,風(fēng)電匯集變電站的無功電壓協(xié)調(diào)控制策略。 最后,以某地區(qū)風(fēng)電場(chǎng)集群為研究對(duì)象,對(duì)論文所提的風(fēng)電場(chǎng)集群無功電壓協(xié)調(diào)控制策略進(jìn)行了仿真驗(yàn)證。算例仿真結(jié)果表明,采用本文所提策略后風(fēng)電場(chǎng)集群電壓水平得到了顯著改善,風(fēng)電場(chǎng)集群區(qū)域的網(wǎng)損也有明顯降低。測(cè)試結(jié)果驗(yàn)證了本文所提風(fēng)電場(chǎng)集群無功電壓協(xié)調(diào)控制策略的正確性和有效性。
[Abstract]:With the increase of wind power capacity, voltage and reactive power and the integration of large-scale wind power electric power system caused more serious, the reactive power and voltage control is the power of the problem to be solved after the large-scale wind power integration. At present, the domestic wind farm mostly adopt centralized grid connected wind farm cluster, by several to a dozen wind farm adjacent to each other in space, between the electrical contact closely, can will bring together these wind farms and centralized access to the substation as a whole. The establishment of coordinated control of the coordinated control mode of unified, to improve the voltage stability of wind farm clusters and reduce the net loss has significant effect, so as to further enhance the ability of power grid acceptance of wind power.
This paper studies the wind farm reactive voltage regulation capability, a detailed analysis of the asynchronous wind turbine, doubly fed induction wind power generator, direct drive voltage and reactive power adjustment ability of permanent magnet synchronous wind turbines, and wind farms in different types of reactive power compensation device for reactive power and voltage adjusting ability.
Secondly, the overall framework, the design of the wind farm cluster of reactive power and voltage control system communication interface, data exchange and the content of the main modules of the system. Considering the coordination between the wind farm, wind farm substation with a collection of coordination between, the proposed wind farm clusters of reactive power and voltage control strategy, including the optimal voltage control strategy the wind farm cluster, wind farm cluster limit voltage control strategy, wind collecting substation voltage and reactive power coordinated control strategy.
Finally, the wind farm cluster in a region as the research object, the wind farm cluster proposed the reactive power control strategy is verified by simulation. The simulation results show that, with the proposed strategy after the wind farm cluster voltage level has been significantly improved, the net loss of wind farm clusters also decreased significantly. The test results verify the correctness and effectiveness of the proposed wind farm cluster reactive power control strategy.

【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM614

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本文編號(hào)：1388192