A Power Flow Simulation Method for Power Grid Closed-loop Control

Abstract

A power flow simulation method for closed-loop control of the power grid, which obtains the real power grid model observable by each control center from the control centers at all levels of the grid / province / local level; , to obtain the power plant model; carry out the global power flow calculation of the grid-provincial integration, and simulate the SCADA system to generate the simulation state of the grid-provincial integrated grid; the control centers at all levels of the grid / province obtain the real-time operation of their respective observable grids from the simulated SCADA system State, control calculation and send to the simulated SCADA system; the simulated SCADA system receives and executes the control commands generated by the control centers at all levels of the network / province, and updates its simulated operation status through the global power flow simulation. The present invention constructs the global power grid and the partial power grid models that can be observed by each control center through the model splicing and merging technology, simulates the continuous change of the power grid through continuous power flow calculation, and realizes the closed-loop control function of the simulated power system through the simulation substation technology .

Description

technical field [0001] The invention relates to technologies related to power grids, in particular to a power flow simulation method for closed-loop control of power grids. Background technique [0002] The Automatic Voltage Control (AVC) system plays an important role in ensuring the grid voltage is qualified, improving the safe operation level of the grid, improving the voltage quality, optimizing the distribution of reactive power flow, and reducing the network loss of the grid. The AVC system adopting the hierarchical partition voltage control mode has been widely used all over the world, and has become one of the important advanced applications of the grid energy management system (Energy Management System, EMS). [0003] The automatic voltage control system is based on the EMS system, which can use the real-time operation data of the power grid to make scientific decisions on the best reactive power and voltage adjustment scheme from the perspective of the entire syste...

AI Technical Summary

Problems solved by technology

Generator automatic voltage and reactive power control device is an automatic voltage-reactive power optimization control terminal on the power plant side and an intelligent node of the automatic voltage AVC control system of the whole network. It has intelligent decision-making functions such as reactive power distribution and local control. However, the generator AVC device There is no specific verification method for the performance evaluation of

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