分布式电源接入的配电系统多类型无功源出力优化方法

同时考虑光伏发电系统、风电机组、静止无功发生器、并联电容器等多类型无功源的协同运行问题，建立多类型无功源协同运行的优化模型，增强了无功协调能力和优化效果。研究了光伏逆变器无功的调节原理和双馈电机风力发电系统无功调节能力。考虑光伏发电系统和风电机组的无功特性，构建向分布式电源和静止无功发生器的输出或吸收无功功率的约束条件函数。采用潮流雅可比矩阵直接变换求取灵敏度系数，构建基于线性规划的分布式电源、并联电容器和静止无功发生器输出无功功率的约束域及其罚函数。通过潮流雅可比矩阵进行矩阵变换，构建考虑有功网损最小化的目标函数灵敏度系数的线性化模型。采用两阶段单纯形法对优化问题进行求解，获得了好的效果。

Multi-type reactive power output optimization method of distribution system with distributed generations

Considering coordinactive operation of photovoltaic power generation systems, wind-driven generators, static var generators, shunt capacitors and other types of reactive power sources, an inactive operation optimization model for multi-type reactive power sources is established, which enhances the reactive power coordination ability and optimization effect. The reactive power regulation principle of photovoltaic inverters and the reactive power regulation capability of doubly-fed wind power generation systems are studied. Considering the reactive power characteristics of photovoltaic power generation systems and wind-driven generators, the constraints function of output or absorption of reactive power of distributed generation and static var generator is constructed. The sensitivity coefficient is obtained by direct transformation of power flow Jacobian matrix, and the constraint region and penalty function of reactive power of distributed generation systems, shunt capacitors and static var generators based on linear programming are constructed. A linearized model of sensitivity coefficient of objective function considering active power loss minimization is constructed by Jacobian matrix transformation of power flow. A simplex method with two-stage is used to solve the optimization problem, and good results are obtained.