CAJ | 학술논문

针对传统下垂控制难以保证微网孤岛模式下负荷分配准确的问题，通过对功率分配特性的深入分析，得到了额定功率和线路阻抗不匹配是造成分配不准确的根本原因，在此基础上提出了一种依靠静态修正下垂增益来改善功率分配特性的方法。该方法不会改变传统下垂控制方程的形式，对系统动态特性和稳定性无显著影响，对微网运行电压的影响也较小。在Matlab／Simulink仿真平台上验证了所提改进方法的有效性。
침대전통하수공제난이보증미망고도모식하부하분배준학적문제，통과대공솔분배특성적심입분석，득도료액정공솔화선로조항불필배시조성분배불준학적근본원인，재차기출상제출료일충의고정태수정하수증익래개선공솔분배특성적방법。해방법불회개변전통하수공제방정적형식，대계통동태특성화은정성무현저영향，대미망운행전압적영향야교소。재Matlab／Simulink방진평태상험증료소제개진방법적유효성。
In view of the conventional droop control is difficult to guarantee the load distribution accurately in the is-landed mode micro-grid, this paper comes to the conclusion that the mismatch of rated power and line impedance are the root cause of inaccurate distribution through in-depth analysis of the power distribution characteristics.and an im-proved method depending on static correct the droop gain to improve power distribution characteristics is proposed on this basis.This method does not change the equation form of the conventional droop control, and has no significant effect on the system dynamic performance and stability, the impact on the operating voltage is also lesser.The effec-tiveness of the improved method is verified on the Matlab/Simulink simulation platform.