Microgrid simulation method including wave energy generation device

Abstract

The invention provides a micro-grid simulation method including a wave energy power generation device. Firstly, the wave energy power generation system is simulated, and the model of the wave energy power generation system is obtained, and then the photovoltaic and energy storage systems are constructed by using the external characteristic equivalent modeling method. The photovoltaic and energy storage model is obtained, and the three-phase components of the power grid generated by the photovoltaic and energy storage model are injected into the microgrid model; after the photovoltaic and energy storage sub-microgrid energy management strategy model is constructed, the wave energy generation system model is incorporated into the microgrid In the grid model, the photovoltaic and energy storage sub-microgrid energy management strategy model simulates and analyzes the grid-connected microgrid model, and solves the problem of difficult coupling between wave energy and photovoltaic and energy storage after the wave energy is incorporated into the microgrid through simulation analysis. The problem ensures the reliable operation of the microgrid and provides a theoretical basis for the practical application of wave energy to the microgrid in the future.

Description

technical field [0001] The invention relates to the technical field of power system simulation, in particular to a micro-grid simulation method including a wave energy power generation device. Background technique [0002] Wave energy is a specific form of ocean energy, and it is also one of the most important energy sources in ocean energy. Because the South China Sea Islands are geographically far away from the mainland, the power supply is mainly powered by fuel oil, which has high electricity cost and relatively high environmental pollution. Therefore, as a renewable clean energy, wave energy will become the main energy supply method for abyss islands in the future, and microgrid is a kind of organic integration of distributed power sources, loads, energy storage devices, converters and monitoring and protection devices. The integrated small power generation and distribution system, relying on key technologies such as operation control and energy management of the microg...

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Problems solved by technology

[0003] The publication number is CN107403047A, a DC microgrid digital physical simulation platform and simulation method including wind turbines and photovoltaic power generation, which discloses a simulation method for microgrids including distributed power sources such as solar energy and wind energy. Although it involves Microgrid simulation, but its distributed power supply does not include wave energy generation devices, so it is impossible to realize the simulation of microgrids with wave energy generation devices, that is, it cannot provide guidance for the practical application of wave energy

[0004] The publication number is CN209044031U, a portable wave energy power generation simulation test device, which discloses a simulation test host, a signal conversion box and a power amplifier. The combined effect of the power amplifier transmits the simulated signal to the secondary power equipment, and simulates the impact of the wave energy generation system on the actual power grid. It only discloses part of the hardware equipment, and the establishment of the model and the management of the energy in the simulation process It is not involved, it only belongs to the content of the hardware level, and it cannot fully realize the simulation and testing of wave energy

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