【摘要】 针对交直流电网中因为直流控制与发电机控制欠协调而导致的交流联络线功率低频振荡问题,运用MAS与参数约束非线性优化算法结合来解决直流控制与送端机组间的协调。该方法将直流控制与发电机控制分别用Agent代理,参数约束非线性优化算法嵌入各Agent模块进行局部参数优化计算,并向协调Agent提供各自的整定参数,通过协调Agent统一调整,最终实现直流控制与送端机组间控制参数的优化调节,在全局协调的方式下增强交流联络线低频振荡的阻尼。文章以南方电网贵广直流和天广直流线为实例验证了该方法的有效性。更多还原

【Abstract】 According to the low-frequency power oscillation in AC link lines caused by the not-coordinated DC controllers and generator controllers in AC/DC grid, an approach of the parameter-constrained nonlinear optimized algorithm combined MAS is proposed.In this method, both DC controllers and generator controllers are respectively deputized by different Agents. The parameter-constrained nonlinear optimized algorithm is embedded in every Agent to finish the local parameter optimization analysis, and then provide them to the coordination Agent. By the coherent coordination, the optimal regulation of control parameters between DC controllers and generator controllers will be finished and the damp against the low frequency oscillation in AC link lines is realized under integral coordination. By taking the Gui-Guang and Tian-Guang DC system of south grid as examples, the feasibility of the approach is identified.更多还原