System of optical storage source and water vapor energy heat pump based on peak-valley price difference and grid-connected control method thereof

Abstract

The invention relates to a system of an optical storage source and a water vapor energy heat pump based on a peak-valley price difference and a grid-connected control method thereof. The system comprises a photovoltaic system, an optical storage operation control module, a battery energy storage system, the water vapor energy heat pump, a DC bus, a low voltage side AC bus, and an AC distribution network; the photovoltaic system and the battery energy storage system are connected with the DC bus after being subjected to DC / DC transformation respectively; the photovoltaic system and the battery energy storage system are connected with the low voltage side AC bus after being subjected to DC / AC transformation respectively; and the water vapor energy heat pump and a residential power load are respectively connected to the low voltage side AC bus. The system of the optical storage source and the water vapor energy heat pump based on the peak-valley price difference provided by the invention develops an operation scheduling strategy of the optical storage source and the water vapor energy heat pump based on the peak-valley price difference, and realizes the purposes of household energy saving and emission reduction and reducing the household electricity purchasing cost to achieve economic optimum.

Description

[0001] Technical field: [0002] The invention relates to a light-storage source, in particular to a system of a light-storage source and a water vapor energy heat pump based on peak-valley electricity price difference and a grid-connected control method thereof. [0003] Background technique: [0004] With the continuous depletion of fossil energy, the consumption of non-renewable energy such as coal, oil, and natural gas has caused increasingly serious harm to the environment. The current energy problem has become a major bottleneck restricting the sustainable development of the national economy. Residential photovoltaic systems can effectively use buildings and reduce residential electricity loads by adopting the "spontaneous self-use surplus electricity grid" mode, which has become one of the important technologies in the field of building energy conservation and the most important form of solar photovoltaic applications. [0005] In recent years, high-temperature air sourc...

AI Technical Summary

Problems solved by technology

However, intermittent photovoltaic resources have the characteristics of randomness and volatility, which reduces the reliability of power supply, and the photovoltaic power generation curve does not match the residential load power consumption.

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