Comprehensive energy storage optimal configuration method and system
A technology that optimizes configuration and energy storage devices. It is applied in the fields of energy storage, greenhouse gas reduction, and climate sustainability. It can solve the problem of insufficient flexible adjustment capacity of the power system, widening peak-to-valley difference between power grid loads, and deterioration of power grid load characteristics. question
Active Publication Date: 2020-04-24
JIANGSU ELECTRIC POWER CO +5
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Problems solved by technology
[0002] In recent years, the peak-to-valley difference of power grid load in my country has further widened, and the load characteristics of the power grid have deteriorated, which is not conducive to the economic operation of the power system.
In addition, the proportion of renewable energy power generation such as wind power and photovoltaic power generation continues to increase. Due to the lack of flexible adjustment capacity of the power system, renewable energy power generation is facing severe consumption problems
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[0121] The present invention will be further described below in conjunction with the accompanying drawings.
[0122] Such as figure 2 As shown in , the abstract model of the user-side integrated energy system is described. A user-side integrated energy system includes: external energy (such as the electric energy of the distribution network, the heat energy provided by the northern heating system), energy production unit, energy conversion unit, storage Energy unit, user side load;
[0123] The energy production unit is the energy generation unit on the user side, including distributed wind power or photovoltaic power generation units located on the user side;
[0124] Energy conversion unit is a unit that converts energy such as electric energy into other forms of energy, such as electric boilers and air conditioners;
[0125] Energy storage units include electric energy storage, thermal energy storage, and cold energy storage units;
[0126] Loads include: ordinary electri...
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The invention discloses a comprehensive energy storage optimal configuration method and system. The method comprises the steps of giving the energy demands of a system at each time period and the maximum output of an energy production unit in the system at each time period in combination with the architecture of a user-side comprehensive energy system; establishing a physical model of an energy conversion unit and an energy storage unit in the system; and establishing a comprehensive energy storage optimal configuration model with the minimum load variance, the minimum renewable energy sourcereduction amount and the minimum comprehensive energy storage capacity as targets , wherein the optimal solution of the model is the optimal capacity which should be configured for various types of energy storage devices. The method can be applied to user-side comprehensive energy systems of various specific architectures, and through multi-energy complementation and multi-energy flow coordinatedoptimization scheduling, the effects of the user-side comprehensive energy systems on reducing the load peak-valley difference of a power grid and improving the renewable energy consumption capacity are fully excavated. According to the method, electric heating and cooling comprehensive energy storage can be coordinated and matched to promote peak load shifting and renewable energy consumption, and the operation safety and economy of the power system are effectively improved.
Description
technical field [0001] The invention relates to the technical field of comprehensive energy, and discloses a comprehensive energy storage optimization configuration method and system. Background technique [0002] In recent years, the peak-to-valley difference of power grid load in my country has further widened, and the load characteristics of the power grid have deteriorated, which is not conducive to the economic operation of the power system. In addition, the proportion of renewable energy power generation such as wind power and photovoltaic power generation continues to increase. Due to the lack of flexible adjustment capacity of the power system, renewable energy power generation is facing severe consumption problems. [0003] In the face of problems such as widening load peak-valley difference and renewable energy consumption, many studies have sought solutions from the user side, such as rationally configuring electric energy storage in the microgrid, and reducing pe...
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IPC IPC(8): H02J3/28H02J3/38
CPCH02J3/28Y02E70/30
Inventor 陆晓芮松华吴奕胡伟张卫国邵军军陈良亮纪程王旭东高赐威
Owner JIANGSU ELECTRIC POWER CO
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