A control method for tracking power generation plan output using multi-type energy storage systems

Abstract

The invention provides a controlling method of tracing planned contribution of electricity generation with various energy-storing systems. The method includes the following steps: firstly, acquiring current actual data of electricity generation, predictive power before electricity generation date and current electric charge state values of various energy-storing system; secondly, confirming a current moment and calculating a general target power value of the energy-storing systems based on a charge state interval and a predicted eigenvalue of an electricity generation power value; thirdly, calculating respective initial target power values of the current energy-type energy-storing systems and power-type energy-storing systems; optimizing the initial target power values of the energy-type energy-storing systems and the power-type energy-storing system to obtain the target power values of the energy-type energy-storing systems and the power-type energy-storing systems based on the fuzzy control rule. By optimizing and allocating the general power requirements of energy-storing systems in the various energy-storing systems, optimal management of various energy-storing systems is achieved, and the capability of tracing planned contribution of electricity generation is also improved.

Description

technical field [0001] The invention relates to a control method, in particular to a control method for tracking the planned output of power generation by using multi-type energy storage systems. Background technique [0002] In recent years, wind power, photovoltaic and other new energy power generation have developed rapidly, but the inherent randomness and volatility of wind power and photovoltaic make their large-scale grid connection may endanger the safety and stability of power grid operation. Tracking the planned output means that the power generation equipment can generate electricity according to the planned curve formulated in advance. There are often large errors between the actual power of wind power, photovoltaic and other new energy generation and the planned output. With the continuous development of energy storage technology and the cost Gradually, it has gradually become a feasible solution to use energy storage to participate in tracking the planned output...

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Problems solved by technology

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a control method that utilizes multi-type energy storage systems to track power generation plan output. The present invention utilizes the complementary advantages of multi-type energy storage State, different types of energy storage system characteristics and state of charge, and fuzzy control optimization method, by optimizing the distribution of the total power demand of the energy storage system among various types of energy storage systems, it makes up for the large number of charging and discharging cycles of a single battery energy storage The shortcoming of short life has achieved the purpose of meeting the energy optimization management of multi-type energy storage systems and improving the ability to track the output of power generation plans

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