Method for designing wind and solar hybrid system

Abstract

The invention relates to the new energy technology and the wind and solar hybrid power generation system, in particular to a method for designing a wind and solar hybrid system. The method includes the following steps of firstly, measuring energy consumption data of support loads of a place where the wind and solar hybrid system is located; secondly, obtaining a sunlight intensity function S(t), a temperature function T(t) and a wind velocity function vw(t) within the time period [0,T] by conducting statistics on solar radiation intensity data, temperature data and wind power data of the place where the wind and solar hybrid system is located; thirdly, obtaining an energy consumption mean value and an energy consumption rate mue of load subsystems within the time period [0,T] according to the energy consumption data of supporting loads of the place where the wind and solar hybrid system is located and sunlight intensity function S(t) and the temperature function T(t) of the place where the wind and solar hybrid system is located, wherein T takes one day as a unit. The method is reasonable in design, and required cost of the optimized wind and solar hybrid system is determined on the premise that the energy outage probability poutage and the wind / solar discard probability pdiscard are lowered and it is ensured that a battery pack works in the optimal low-charging and low-discharging working state.

Description

technical field [0001] The invention relates to new energy technology and wind-solar complementary power generation system technology, in particular to a wind-solar complementary system design method. Background technique [0002] The fossil energy crisis and the deterioration of the ecological environment make the development and utilization of pollution-free renewable energy a development trend in the energy field. Solar energy and wind energy are the most representative renewable energy sources, which have the advantages of being widely distributed and widely available. But at the same time, solar energy and wind energy are closely related to meteorological and environmental factors, and have randomness in time and space. Therefore, how to reasonably design the wind-solar hybrid system as a form of complementary and effective utilization of solar energy and wind energy is to ensure the reliable operation of this system. Preconditions and primary problems to be solved. ...

AI Technical Summary

Problems solved by technology

Traditional design methods mainly use static analysis and design methods, ignoring the dynamic and nonlinear characteristics of the wind-solar hybrid system in operation, and cannot guarantee the reliability and robustness of the designed system

[0022] 2. The traditional design method is mainly based on the design of evaluation indicators to meet the needs of the power supply side. There is a lack of evaluation indicators for the reliability and stability of the various components of the wind-solar hybrid system, and it is impossible to guarantee the service life of energy storage batteries, wind energy, and solar energy utilization. Guarantee the long-term reliable and economical work of the designed wind-solar hybrid system

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