| 引用本文: | 杨赟,梅飞,张宸宇,缪惠宇,陈虹妃,郑建勇.虚拟同步发电机转动惯量和阻尼系数协同自适应控制策略[J].电力自动化设备,2019,39(3): |
| YANG Yun,MEI Fei,ZHANG Chenyu,MIAO Huiyu,CHEN Hongfei,ZHENG Jianyong.Coordinated adaptive control strategy of rotational inertia and damping coefficient for virtual synchronous generator[J].Electric Power Automation Equipment,2019,39(3): |
|
| 摘要: |
| 虚拟同步发电机(VSG)控制将同步电机的转动惯量和阻尼系数引入到逆变器的控制中，改善了系统频率响应特性，增强了微电网抗干扰的能力，但是牺牲了一定的动态调节性能。在此基础上，提出了一种VSG转动惯量和阻尼系数协同自适应控制策略。建立VSG的数学模型，分析各参数对系统输出特性的影响；在VSG控制的基础上引入转动惯量和阻尼系数协同自适应控制策略，并给出相应参数变化情况下的稳定性分析；通过MATLAB/Simulink仿真对比定参数VSG控制与转动惯量和阻尼系数协同自适应控制策略的控制效果，验证了所提控制策略的可行性和有效性。 |
| 关键词: 虚拟同步发电机 频率响应 转动惯量 阻尼系数 自适应控制策略 |
| DOI：10.16081/j.issn.1006-6047.2019.03.020 |
| 分类号:TM71 |
| 基金项目:江苏省科技成果转化专项项目(BA2015086)；江苏省重点研发计划(BE2017030)；国网江苏省电力有限公司科技项目(J2018056) |
|
| Coordinated adaptive control strategy of rotational inertia and damping coefficient for virtual synchronous generator |
|
YANG Yun1, MEI Fei2, ZHANG Chenyu3, MIAO Huiyu1, CHEN Hongfei1, ZHENG Jianyong1
|
|
1.Electrical Engineering Department, Southeast University, Nanjing 210096, China;2.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;3.Research Institute, State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103, China
|
| Abstract: |
| The control strategy of VSG(Virtual Synchronous Generator) introduces rotational inertia and damping coefficient that are originally from synchronous generators to the inverter control, which improves the frequency response and enhances the anti-disturbance capability. However, the system dynamic adjustment performance may be negatively impacted. Hence, a coordinated adaptive control strategy of rotational inertia and damping coefficient for VSG is proposed. Firstly, the mathematical model of the VSG is established, and the influence of parameters on the system output characteristics are analyzed. Secondly, the proposed control strategy is applied on the VSG, in which the stability analysis under the change of corresponding parameters is performed. Finally, compared with the traditional VSG control strategy, simulative results on MATLAB/Simulink verify the feasibility and effectiveness of the proposed control strategy. |
| Key words: virtual synchronous generator frequency response rotational inertia damping coefficient adaptive control strategy |
