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Photovoltaic power generation system and grid-connected control method of waste incineration power plant

A photovoltaic power generation system and control method technology, applied in photovoltaic power generation, single grid parallel feeding arrangement, climate change adaptation, etc., can solve the problems of limited power output, waste of resources, voltage quality and stability impact, etc. Achieve the effect of improving system voltage level, improving power generation efficiency and reducing power loss

Active Publication Date: 2018-01-19
SICHUAN HAITIAN ENVIRONMENTAL PROTECTION ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] On the one hand, waste incineration power plants need to consume electricity for waste disposal before incinerating waste for power generation; on the other hand, protection areas must be set up around waste incineration power plants as required, and most of the protection areas are idle land, resulting in a certain waste of resources
[0003] On the other hand, photovoltaic power generation itself has random and intermittent characteristics different from conventional power sources. First, the injection of photovoltaic power has a great impact on the voltage quality and stability of local power grids, which limits the way photovoltaic power generation can be connected to the system. Second, the controllability of the driving force of photovoltaic power generation is not strong. Whether it is in the power generation state and the size of the output is limited by the weather conditions and the performance of the photovoltaic system. Its grid-connected operation has a certain impact on the power quality and safe and stable operation of the grid. the threat of
Therefore, the grid operation and safety problems caused by the instability of photovoltaic power generation and the island effect will greatly limit the grid-connected power supply of photovoltaic power generation systems.

Method used

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  • Photovoltaic power generation system and grid-connected control method of waste incineration power plant
  • Photovoltaic power generation system and grid-connected control method of waste incineration power plant

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Experimental program
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Embodiment 1

[0038] The photovoltaic power generation system of the waste incineration power plant of this embodiment, such as figure 1 As shown, it is mainly realized through the following technical solutions: the photovoltaic power generation system of the waste incineration power plant, including photovoltaic modules, lightning protection components, solar control components, inverter components, metering boxes and local Power distribution cabinets, grid-connected components, and solar control components are also connected to battery packs; the photovoltaic components include multiple solar battery packs installed on the roof or protection area of ​​buildings in waste incineration power plants, and the lightning protection components include multiple lightning protection The solar control component includes a plurality of solar controllers, the inverter component includes a plurality of inverters, and the solar battery pack, lightning protection device, solar controller, and inverter are...

Embodiment 2

[0041] This embodiment is further optimized on the basis of the above embodiments, such as figure 2 As shown, further, the booster device includes a grid-connected power generation circuit, a drive circuit, a logic circuit, and a control circuit connected in series in sequence, and a boost communication interface is connected between the input end and the output end of the control circuit. Other parts of this embodiment are the same as those of the foregoing embodiments, so details are not repeated here.

Embodiment 3

[0043] This embodiment is further optimized on the basis of the above embodiments, such as figure 2 As shown, further, the grid-connected power generation circuit includes an input protection switch, a first boost circuit, a second boost circuit, and a grid-connected switch connected in series in sequence, the input end of the input protection switch is connected to the output end of the metering box, and The output terminal of the network switch is connected with the input terminal of the mains power grid; the first output terminal of the drive circuit is connected with the input terminal of the input protection switch, the second output terminal of the drive circuit is connected with the input terminal of the first booster circuit, and the drive circuit The third output terminal of the drive circuit is connected to the input terminal of the second booster circuit, and the fourth output terminal of the driving circuit is connected to the input terminal of the grid-connected s...

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Abstract

The invention discloses a photovoltaic power generation system of a waste incineration power plant. The photovoltaic power generation system comprises a photovoltaic assembly, a lightning protection assembly, a solar control assembly, an inversion assembly, a metering box, a local power distribution cabinet and a grid-connection assembly which are sequentially connected. The local power distribution cabinet and the grid-connection assembly are connected with the metering box. The solar control assembly is connected with a storage battery pack. The photovoltaic assembly comprises a plurality of solar battery packs. The grid-connection assembly comprises a boosting device, a concentrated control center and an electric scheduling center. The boosting device is connected with the metering box, the concentrated control center and a mains supply power grid. The boosting device analyzes data collected by the concentrated control center, and the electric scheduling center controls the boosting device to supply power to the mains supply power grid in a grid-connection mode through the concentrated control center. By means of the photovoltaic power generation system, idle spaces such as building roofs and protection areas of the waste incineration power plant are fully used for photovoltaic power generation, and energy conservation and emission reduction are achieved. By means of a grid-connection control method, the low-power distributed solar battery packs are connected with one another in a concentrated grid-connection mode and are scheduled by the electric scheduling center and powered in a grid-connection mode.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic power generation system and a grid-connected control method of a waste incineration power plant. Background technique [0002] On the one hand, waste incineration power plants consume electricity for waste disposal before incinerating waste for power generation; on the other hand, protection zones must be set up around waste incineration power plants as required, and the protection zones are mostly idle land, resulting in a certain waste of resources. [0003] On the other hand, photovoltaic power generation itself has random and intermittent characteristics different from conventional power sources. First, the injection of photovoltaic power has a great impact on the voltage quality and stability of local power grids, which limits the way photovoltaic power generation can be connected to the system. Second, the controllability of the driving force of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCY02A30/60Y02B10/10Y02E10/56
Inventor 潘志成彭玉梅陈婷婷卿春梅邱恋邱小丽杨开虎汪锐黄娴章友京
Owner SICHUAN HAITIAN ENVIRONMENTAL PROTECTION ENERGY