含风电接入的省地双向互动协调无功电压控制

发布时间：2018-04-28 18:54

本文选题：电力系统 + 风力发电　；参考：《电力系统自动化》2014年24期

【摘要】：为应对规模化风电接入对电网无功电压运行和控制的影响,结合现场实际,提出并实现了一种跨电压等级风电汇集区域风电场与传统电厂的无功电压协调控制方法。在控制中心内,研究并提出计及风功率波动和电网N-1安全约束的敏捷电压控制方法,该方法通过控制周期和控制模型的自适应调整,充分挖掘省调直控风电场的无功电压调节能力,抑制风电波动对电网电压的影响,保留足够的传统发电机动态无功储备。在控制中心间,研究并提出计及风电场调节能力的省地双向互动协调控制方法,通过地区电网内风电场与地调直控变电站的协调控制,发挥地调直控风电场的调节能力,减少地调直控变电站的电容电抗器动作次数,通过省地双向互动协调,协调省地双方无功调节资源,支撑末端地区电网电压,提高电网整体运行的安全性和经济性。所研发的实际控制系统已在江苏电网应用,仿真运行和实际闭环结果证明了该方法的有效性。
[Abstract]:In order to cope with the influence of large-scale wind power access on the operation and control of reactive power and voltage in power grid, a coordinated control method of reactive power and voltage between wind farm and traditional power plant is proposed and realized. In the control center, an agile voltage control method considering wind power fluctuation and network N-1 security constraints is proposed. The method adaptively adjusts the control period and the control model. Fully excavate the reactive power and voltage regulation ability of the provincial direct-controlled wind farm, restrain the influence of wind power fluctuation on the grid voltage, and reserve sufficient dynamic reactive power reserve of traditional generators. Among the control centers, this paper studies and puts forward a method of coordinated control between land and land, which takes into account the regulating ability of wind farm. Through the coordinated control of wind farm and direct-controlled substation in regional power network, the regulating ability of direct-controlled wind farm is brought into play. It can reduce the number of capacitive reactor actions in direct-controlled substations, coordinate the reactive power regulation resources of both sides, support the voltage in the terminal area, and improve the safety and economy of the whole operation of the power network by means of the two-way interaction and coordination between the two sides. The developed practical control system has been applied in Jiangsu Power Grid. The simulation results and the actual closed-loop results show the effectiveness of the method.
【作者单位】：电力系统及发电设备控制和仿真国家重点实验室清华大学;清华大学电机工程与应用电子技术系;国网江苏省电力公司;
【基金】：国家科技支撑计划资助项目(2013BAA02B01) 国家杰出青年科学基金资助项目(51025725) 新能源电力系统国家重点实验室开放课题(LAPS13007) 国家自然科学基金资助项目(51277105)~~
【分类号】：TM614

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