【摘要】：冀北電網(wǎng)地處首都北京的周邊,肩負(fù)著向首都供電的西電東送、北電南送大通道和首都500千伏環(huán)網(wǎng)的安全穩(wěn)定運(yùn)行的責(zé)任。當(dāng)前,冀北電網(wǎng)220kV及以上電壓等級(jí)發(fā)電機(jī)組均由華北網(wǎng)調(diào)直接調(diào)度控制,隨著電網(wǎng)的規(guī)模逐步加大,機(jī)組容量不斷增加,如何發(fā)揮冀北電力公司主體作用,更有效地保證首都供電,適應(yīng)電網(wǎng)的快速發(fā)展,成為迫切的要求。然而,如何制定合理的省間聯(lián)絡(luò)線(xiàn)計(jì)劃,建立發(fā)電機(jī)組分層控制及多級(jí)協(xié)調(diào)機(jī)制,對(duì)成立冀北獨(dú)立控制區(qū)是一項(xiàng)具有重大挑戰(zhàn)的工作。本文首先對(duì)冀北電網(wǎng)結(jié)構(gòu)、火電出力、風(fēng)電出力及負(fù)荷特性進(jìn)行分析,將冀北負(fù)荷分為基荷和峰荷兩部分,采用分?jǐn)倷C(jī)制,以不合格點(diǎn)和棄風(fēng)電量最低為優(yōu)化目標(biāo),以本地機(jī)組調(diào)峰能力、負(fù)荷波動(dòng)調(diào)節(jié)能力和目標(biāo)發(fā)電小時(shí)數(shù)為約束條件,研究了省間聯(lián)絡(luò)線(xiàn)計(jì)劃的合理功率,并采用標(biāo)準(zhǔn)擬合法、標(biāo)準(zhǔn)微調(diào)擬合法、最優(yōu)擬合法三種方法對(duì)聯(lián)絡(luò)線(xiàn)進(jìn)行了規(guī)則化擬合；然后,綜合考慮機(jī)組性能及調(diào)節(jié)范圍的實(shí)際差異性,提出了面向ACE考核的冀北機(jī)組分層控制策略；第三,研究了冀北建立獨(dú)立控制區(qū)后與華北電網(wǎng)間的聯(lián)絡(luò)線(xiàn)支援計(jì)劃,尤其是聯(lián)絡(luò)線(xiàn)計(jì)劃調(diào)整后冀北的應(yīng)對(duì)策略,以及冀北調(diào)控手段不足時(shí)的預(yù)警機(jī)制及對(duì)網(wǎng)調(diào)的支援請(qǐng)求策略。研究結(jié)果表明,在綜合考慮聯(lián)絡(luò)線(xiàn)擬合效果和華北電網(wǎng)考核要求下,基于標(biāo)準(zhǔn)微調(diào)擬合法得到的聯(lián)絡(luò)線(xiàn)計(jì)劃最具可行性。通過(guò)合理地確定聯(lián)絡(luò)線(xiàn)形狀,加上機(jī)組分層控制策略和多級(jí)協(xié)調(diào)調(diào)度機(jī)制,冀北電網(wǎng)可以實(shí)現(xiàn)獨(dú)立控制區(qū)建設(shè)的目標(biāo)。研究結(jié)果滿(mǎn)足了冀北電網(wǎng)成立獨(dú)立控制區(qū)的工作要求,對(duì)指導(dǎo)聯(lián)絡(luò)線(xiàn)申報(bào)和調(diào)度員日常工作均具有顯著的應(yīng)用價(jià)值。
[Abstract]:The north Hebei power grid is located in the periphery of the capital Beijing. It is responsible for the safe and stable operation of the power supply to the capital from the west to the east, from the north to the south, and from the north to the south, as well as to the safe and stable operation of the 500 kV ring network in the capital. At present, the generation units of 220kV and above voltage grade in the north Hebei power network are controlled by the direct dispatching of the North China Network. With the scale of the power network gradually increasing and the unit capacity increasing, how to give play to the main role of the North Hebei Electric Power Company, It is an urgent requirement to ensure the power supply of the capital more effectively and adapt to the rapid development of the power grid. However, it is a great challenge for the establishment of the independent control area in the north of Hebei Province to make a reasonable plan of the inter-provincial tie line, to establish the stratified control system and the multi-level coordination mechanism of the generator set up. In this paper, the structure, thermal power, wind power and load characteristics of the north Hebei power grid are analyzed firstly. The load of the north Hebei is divided into two parts: the base load and the peak load. The allocation mechanism is adopted to optimize the unqualified point and the lowest wind power output. The reasonable power of inter-provincial tie-line planning is studied with the constraints of local unit peak shaving capacity, load fluctuation regulating capacity and target generation hours. The standard fitting method and standard fine-tuning method are adopted. Three methods of optimal fitting are used to regularize the tie line. Then, considering the actual difference of unit performance and regulation range, the paper puts forward the stratified control strategy of unit in north Hebei for ACE assessment. Thirdly, the paper studies the support plan between the North China Power Grid and the North China Power Grid after the establishment of the independent control area in the north of Hebei Province, especially the coping strategy of the northern Hebei after the adjustment of the tie line plan. As well as the early warning mechanism and the support request strategy for the network adjustment when the control means of north Hebei are insufficient. The results show that the tie-line plan based on standard fine-tuning method is the most feasible under the consideration of tie-line fitting effect and evaluation requirements of North China Power Grid. By reasonably determining the shape of tie-line, combined with stratified control strategy and multi-level coordinated dispatching mechanism, the construction of independent control area can be realized in the north Hebei power network. The research results meet the requirements of establishing an independent control area in the north Hebei power grid and have significant application value for guiding the reporting of the liaison line and the daily work of the dispatchers.
【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】：2015
【分類(lèi)號(hào)】：TM73

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