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Power generation method and system of hybrid energy

A hybrid energy and energy storage system technology, applied in the field of power generation, can solve the problems of one-way power flow, easy damage to mechanical equipment, low maximum power, etc., and achieve the effects of extending service life, optimizing management work, and optimizing charging control.

Inactive Publication Date: 2017-05-17
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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Problems solved by technology

However, due to the intermittent and unpredictability of solar energy, wind energy is affected by geographical and environmental conditions and climatic conditions. When solar energy and wind energy are used for power generation, there is a problem of low system matching efficiency, that is, they cannot operate under the most reasonable and economical conditions. , making the maximum power of power generation lower and the quality of power supply poor
In addition, the solar energy system is affected by factors such as sunlight and temperature, and there may be energy loss in the transmission process. The wind power system needs to increase the speed of the gearbox before driving the generator. When the natural wind speed changes randomly, it will cause the generator speed and transmission chain The torque fluctuation amplitude in the medium is large, which is easy to damage the mechanical equipment and affect the service life of the transmission chain mechanism
The current DC conversion is mostly realized by a simple boost circuit, the circuit structure is complex, the power flows in one direction, there is no electrical isolation, high current stress, a large number of components, complex control, and multiple power supplies cannot transmit power at the same time
Moreover, due to the interference of solar and wind energy from external factors, a large number of harmonics will be threatened to the safe operation of the power grid, and it is impossible to provide high-quality, good power waveform and three-phase symmetrical , constant frequency, good voltage rigidity

Method used

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] In order to make the advantages of the technical solution of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiments of the present invention provide a hybrid energy generation method, such as figure 1 As shown, the method includes:

[0030] 101. Monitor the illumination state of sunlight through a photosensiti...

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Abstract

The invention discloses a power generation method and system of hybrid energy, relates to the technical field of power generation, and mainly aims at solving the problem of optimal power energy matching when the grid-connected power generation cannot be realized. The method comprises the following steps: monitoring an illumination status of the sunlight through a photosensitive probe; starting a solar tracking acquisition system connected with a horizontal DC servo motor according to the illumination status and a set of positioning monitoring equipment; controlling a solar cell panel to receive a light signal according to the solar tracking acquisition system; monitoring a wind force status through the rotation of a pneumatic impeller, and starting a wind energy system according to the wind force status and a set of wind speed monitoring equipment; controlling a double-fed power generator to receive a wind signal according to the wind energy system; converting the light signal and the wind signal into the power energy; charging an energy storage system by use of the surplus power quantity through a three-port dual-way DC / DC converter; or extracting the power quantity from the energy storage system through the three-port dual-way DC / DC converter, thereby charging the load.

Description

technical field [0001] The invention relates to the technical field of power generation, in particular to a hybrid energy power generation method and system. Background technique [0002] Energy power generation is the conversion of non-electric energy into electric energy, among which solar energy and wind energy are the main power generation sources of energy power generation. The existing energy power generation system only calculates according to the solar radiation, wind frequency distribution and geographical environment conditions in the user's area, and generates power according to the user's requirements for power consumption and the guaranteed rate of power consumption. However, due to the intermittent and unpredictability of solar energy, wind energy is affected by geographical and environmental conditions and climatic conditions. When solar energy and wind energy are used for power generation, there is a problem of low system matching efficiency, that is, they ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S10/12H02S10/20F03D7/02
CPCF03D7/02H02S10/12H02S10/20Y02E10/50Y02E10/72Y02E70/30
Inventor 单海欧
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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