Coordinated Control Strategy of AGC and AVC Based on Multi-Agent System

With the development of the energy Internet, the coupling of active power and reactive power in modern power grid is increasingly inseparable, while the operation of automatic generation control ( AGC) and automatic voltage control ( AVC) is in the way of decoupling in the power grid. The operation of AGC and AVC will affect the control effect of each other as a result of the different targets, and even may cause the repeating regulation of equipment or other safety issues. According to the above issues, this paper establishes a coordinated control strategy of AGC and AVC based on multi agent system. By means of the establishment of three level multi agent architecture, the coordinated control of AGC and AVC is realized by classification and partition. The comprehensive coordination model of AGC and AVC is established in the organization level agent, and the AGC and AVC controls are synthesized based on the ultrashort term load forecasting for the advanced AGC optimization and the correction of AVC on account of the adjustment of active power. The independent and cooperative control strategy of voltage correction is set at the coordination level and the executive level agent to achieve the independent operation of the voltage correction, the independent cooperation between the intelligent bodies and the local compensation of reactive power. Finally, the simulation prove that, the proposed control strategy can improve the economy and security of the system operation and suppress the mutual interference between AGC and AVC.