CAJ | 학술논문

在分析风力发电系统和微型燃气轮机动态模型及运行特性基础上，提出利用可控的微型燃气轮机平滑风电功率波动从而改善电压质量的方法。建立了风力发电系统与微型燃气轮机互补发电的混合微电网系统模型，并对其控制策略进行了研究。在所建立的混合微电网系统中，风力发电系统承担馈线基荷，微型燃气轮机承担馈线剩余负荷并作为热备用，在风速变化时平滑风电功率波动，从而实现对母线电压的优化控制。对该方法进行了PSCAD仿真，仿真结果表明：出现阵风、渐变风等风速扰动时，系统电压波动可以得到有效抑制；在发生线路故障时，系统电压波动和电压恢复时间也能得到有效减小。
재분석풍력발전계통화미형연기륜궤동태모형급운행특성기출상，제출이용가공적미형연기륜궤평활풍전공솔파동종이개선전압질량적방법。건립료풍력발전계통여미형연기륜궤호보발전적혼합미전망계통모형，병대기공제책략진행료연구。재소건립적혼합미전망계통중，풍력발전계통승담궤선기하，미형연기륜궤승담궤선잉여부하병작위열비용，재풍속변화시평활풍전공솔파동，종이실현대모선전압적우화공제。대해방법진행료PSCAD방진，방진결과표명：출현진풍、점변풍등풍속우동시，계통전압파동가이득도유효억제；재발생선로고장시，계통전압파동화전압회복시간야능득도유효감소。
Based on the analysis of the dynamic models and operating characteristics of wind power generation systems and microturbines,a method for smoothing the fluctuations of wind power by using controllable microturbines is proposed to improve the voltage quality.The model of the hybrid microgrid with wind power generation systems and microturbines is developed,and its control strategy is studied.In the hybrid microgrid,the wind power generation systems share the baseload of the feeders,while the microturbines share the remaining loads of the feeders for use as reserves to smooth the fluctuations of wind power during wind speed changing to achieve optimal control of bus voltage.The PSCAD-based simulation results of the proposed method show that should there be a gust of wind,a gradually changing wind or other wind disturbances,the system voltage fluctuations can be effectively suppressed;when the line goes faulty,the system voltage fluctuations and voltage recovery time can be effectively mitigated.