| 引用本文: | 杨 帆,盛 波,符 杨.独立直流微电网中燃料电池与超级电容的功率协调控制[J].电力自动化设备,2016,36(10): |
| YANG Fan,SHENG Bo,FU Yang.Coordinated power control between fuel cell and supercapacitor for isolated DC microgrid[J].Electric Power Automation Equipment,2016,36(10): |
|
| 摘要: |
| 针对独立直流微电网的功率协调控制问题，提出了一种无源控制PBC（Passivity-Based Control）与PI控制级联的PBC-PI控制策略。建立了系统的端口受控哈密顿PCH（Port-Controlled Hamiltonian）模型，设计了系统的PBC控制器。考虑到系统参数扰动等原因，PBC控制器会在直流母线电压上产生稳态误差，为了消除这一稳态误差，改善闭环系统对于参数扰动的鲁棒性，设计了外环PI控制器调节直流母线电压。仿真结果表明，PBC-PI控制策略可合理调节微电网的功率平衡，稳定直流母线电压；并改善闭环系统对于参数扰动的鲁棒性。 |
| 关键词: 独立直流微电网 燃料电池 超级电容 无源控制 PI控制 端口受控哈密顿 鲁棒性 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51407114）；上海绿色能源并网工程技术研究中心项目（13DZ2251900） |
|
| Coordinated power control between fuel cell and supercapacitor for isolated DC microgrid |
|
YANG Fan, SHENG Bo, FU Yang
|
|
School of Electric Power Engineering，Shanghai University of Electric Power，Shanghai 200090，China
|
| Abstract: |
| A control strategy based on the cascaded PBC（Passivity-Based Control） and PI control is proposed for the coordinated power control of isolated DC microgrid. Its PCH（Port-Controlled Hamiltonian） model is established and its passivity-based controller is designed. An outer-loop PI controller is developed to eliminate the steady-state errors of DC bus voltage caused by the parameter disturbance for improving the robustness of closed-loop system. The simulative results show that，the PBC-PI control strategy could reasonably adjust the power balance of DC microgrid，stabilize the voltage of DC bus and improve the robustness of closed-loop system against parameter disturbance. |
| Key words: isolated DC microgrid fuel cell supercapacitor passivity-based control PI control port-controlled Hamiltonian robustness |
