New energy output simulation application system and simulation method thereof

Abstract

The invention discloses a new energy output simulation application system and a simulation method thereof. The system comprises an AC / DC (Alternative Current / Direct Current) rectification module, a direct current voltage-stabilizing module, a DC / AC inversion module, an isolating transformer, an upper-layer central controller and a bottom-layer unit controller, wherein the AC / DC rectification module and the direct current voltage-stabilizing module are used for simulating a direct current voltage supply; and the DC / AC inversion module is used for simulating new energy output or independent power supply output. The method comprises the following steps that: the power curve value of the new energy is received by using the upper layer central controller, or after receiving a new energy representation index, a corresponding power curve value is obtained through calculation, and a scheduling management signal is transmitted; and the scheduling management signal is received by the bottom-layer unit controller in real time so as to realize the fixed power control, the constant voltage constant frequency control or the sag control. According to the system and the method, the upper-layer central controller is used for coordinating and managing the bottom-layer unit controller, so that the bottom-layer unit controller can power in accordance with an appointed power curve; the investment cost is low; the construction period is short; the operation is simple and flexible; and the system and the method can be widely used in experiment systems for simulating the power of distributed power supplies such as wind energy, photovoltaic energy and energy storage.

Description

technical field [0001] The invention relates to the technical field of new energy power generation applications, in particular to a new energy output simulation application system and a simulation method thereof. Background technique [0002] With the gradual exhaustion of conventional energy sources and the increasing environmental pollution, countries around the world are vigorously advocating the development of new energy generation technologies. In recent years, my country has also attached great importance to the development and utilization of new energy, and has taken the accelerated development of renewable energy such as wind energy, solar energy, and biomass as an important strategy for energy development during the "Eleventh Five-Year Plan" period. However, with the increase in the penetration rate of new energy distributed power generation, its own problems have gradually emerged, such as high frequency of wind power fluctuations and poor controllability; difficul...

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Problems solved by technology

[0003] Wind power, photovoltaic and other power generation systems are an important part of many distributed power generation and micro-grid control technology physical experiment platforms, but due to the influence of geographical environment, climatic conditions and construction costs, the actual wind power or photovoltaic And other new energy systems, not only the construction period is long, the economic cost is high, but also it is difficult to meet the requirements of application at any time

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