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Energy internet hybrid energy system and scheduling method thereof

An energy Internet and hybrid energy technology, applied in the field of energy Internet energy management and scheduling, can solve the problems of low renewable energy consumption rate, high system operation cost, and energy Internet stability impact, and achieve system cost and renewable energy. The effect of optimizing the consumption rate, improving the consumption rate and penetration rate, and optimizing the total cost of the system

Pending Publication Date: 2022-01-28
DONGHUA UNIV
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Problems solved by technology

[0003] However, due to the lack of synchronization between renewable energy power generation and users' electricity demand in time, and the large-scale grid connection of renewable energy will have a certain impact on the stability of the Energy Internet, the consumption rate of renewable energy is very low. Most of the cases are discarded and turned into so-called "garbage electricity", which eventually leads to high operating costs of the system, which is not conducive to the sustainable and reliable development of the Energy Internet

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  • Energy internet hybrid energy system and scheduling method thereof
  • Energy internet hybrid energy system and scheduling method thereof
  • Energy internet hybrid energy system and scheduling method thereof

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Embodiment

[0050] Such as figure 1As shown, the energy Internet hybrid energy system includes renewable energy generation units, which are respectively connected to user loads and power-to-gas equipment, and user loads are also connected to power-to-gas equipment and external power grids, and power-to-gas equipment is used to convert The electrical energy output by the renewable energy power generation unit is converted into hydrogen, and a fuel cell is connected between the user load and the power-to-gas equipment, and the fuel cell converts the hydrogen output from the power-to-gas equipment into electrical energy again.

[0051] Among them, the power-to-gas equipment includes an electrolyzer and a hydrogen storage tank connected in sequence, the electrolyzer is connected with a renewable energy power generation unit, and the hydrogen storage tank is connected with a fuel cell.

[0052] For the above energy Internet hybrid energy system, in order to optimize the total system cost and t...

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Abstract

The invention relates to an energy internet hybrid energy system and a scheduling method thereof.The system comprises a renewable energy power generation unit, the renewable energy power generation unit is connected with a user load and electricity-to-gas equipment, and the user load is further connected with the electricity-to-gas equipment and an external power grid; the electricity-to-gas equipment is used for converting the electric energy output by the renewable energy power generation unit into hydrogen, a fuel cell is connected between the user load and the electricity-to-gas equipment, and the fuel cell converts the hydrogen output by the electricity-to-gas equipment into the electric energy again. Compared with the prior art, the method has the advantages that a continuous charging and discharging energy scheduling action decision is selected according to the current state, a depth deterministic policy gradient algorithm (DDPG) suitable for a large-scale continuous action space is adopted for training, and meanwhile, deep reinforcement learning is applied to energy internet hybrid energy scheduling control, so that an energy scheduling strategy is formulated and optimized; the total operation cost of the energy internet can be effectively reduced, and the consumption rate of renewable energy sources is improved.

Description

technical field [0001] The invention relates to the technical field of Energy Internet energy management and dispatching, in particular to an Energy Internet hybrid energy system and a dispatching method thereof. Background technique [0002] So far, the consumption of traditional fossil energy and the rapid growth of electricity demand have led to large-scale energy shortages and power outages in the world. It is estimated that by 2050, the proportion of electricity used in total energy will increase from the current 20% to 50%. Renewable energy, as a clean and environmentally friendly energy, is considered to be one of the effective alternatives to solve energy shortages and rapid growth in power demand and reduce the cost of energy Internet systems. The "Energy Internet" was first proposed in the book "The Third Industrial Revolution" in 2011, and was described as "a distributed, open and shared network based on renewable energy". As a powerful supplement to the central...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/28H02J3/38H02J3/46H02J15/00G06N3/02G06N3/08
CPCH02J3/00H02J3/008H02J3/28H02J3/38H02J3/381H02J3/466H02J15/008G06N3/02G06N3/08H02J2203/20H02J2203/10Y02E60/36Y02E70/30
Inventor 张光林陈茗
Owner DONGHUA UNIV
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