Photovoltaic-thermoelectric electricity generation power synthesis system

Abstract

The invention provides a photovoltaic-thermoelectric electricity generation power synthesis system, which comprises a collecting lens array, a photovoltaic cell, a thermoelectric engine, a direct-current motor and an alternating-current generator, wherein rotating shafts of the thermoelectric engine, the direct-current motor and the alternating-current generator are connected together; an output of the photovoltaic cell is connected with an input end of the direct-current motor; the direct-current motor is driven by power generated by the photovoltaic cell; and the power generated by the direct-current motor and the power generated by the thermoelectric engine are used for driving the alternating-current generator to generate electricity in common, and are conveyed into a power grid through a power distribution system. The invention provides a method for integrating photovoltaic output and power output of the thermoelectric engine. Therefore, high-quality power supply can be provided; the stability of solar electricity generation power is increased; the pressure to the power grid due to the instability of traditional photovoltaic electricity generation is reduced; and the actual access rate of solar electricity generation is finally improved.

Description

technical field [0001] The present invention relates to the technical field of solar power generation, in particular to a solar power generation device and system that simultaneously uses photovoltaic and thermoelectric engines to jointly utilize solar energy, such as. It also involves solar thermoelectric generators (see patent application number 201410060776.2), linear Fresnel solar thermoelectric generators (see patent application number 201410679560.4), and liquid nitrogen cooling tower photovoltaic-thermoelectric combined power stations (see patent application number 201510178155.9). It may also involve a program-controlled switch-type thermoelectric engine (see patent application number 201410058639.5), a multi-cylinder thermoelectric engine (see patent application number 201410712134.6), a rotor-type thermoelectric engine (see patent application A thermoelectric engine controlled by a timing system (see patent application number 201410740508.5). Background technique ...

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Problems solved by technology

[0003] The present invention proposes a new technical solution, which can be applied in the fields of photovoltaics and combined photothermal power generation based on thermoelectric engines, so as to solve the problem that the direct current generated by photovoltaics and the alternating current output by photothermal power generation based on thermoelectric engines are uniformly transmitted to the power grid

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