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A distributed photovoltaic power station energy management system and method

An energy management system and distributed photovoltaic technology, applied in photovoltaic power generation, system integration technology, information technology support system, etc., can solve the problems that distributed photovoltaic power plants cannot realize remote monitoring and management

Active Publication Date: 2021-09-07
唐榆东 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy management system and method for distributed photovoltaic power plants to solve the problem that remote monitoring and management cannot be realized in distributed photovoltaic power plants in the prior art

Method used

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  • A distributed photovoltaic power station energy management system and method
  • A distributed photovoltaic power station energy management system and method
  • A distributed photovoltaic power station energy management system and method

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Embodiment 1

[0038] See figure 1 The present embodiment discloses an energy management system for a distributed photovoltaic power station, which includes an on-site monitoring module, a control module, an inverter monitoring module and a power grid dispatching module.

[0039] The on-site monitoring module is used to obtain the set value information of the generated power of the photovoltaic system of each power station and send it to the control module; it is also used to receive the distribution information including the distribution power value fed back by the control module, and set the power value , and finally send the set value to the control module, and the control module performs power distribution;

[0040] The control module receives the power setting value information of the photovoltaic system of each power station and sums it up, distributes power to the inverters of each unit, and uses the PID algorithm to realize the power distribution; receives the actual output power of ...

Embodiment 2

[0046] See figure 2 , the present embodiment discloses a distributed photovoltaic power station energy management method, which applies the above-mentioned system and adopts the PID algorithm to realize, and specifically includes the following steps:

[0047] Obtain the information of the power generation set value of the photovoltaic system of each power station and summarize and sum it up;

[0048] Allocate power to each unit inverter according to the set value;

[0049] Obtain the output power information of the grid connection point of each unit's inverter after the local load and summarize and sum it;

[0050] Calculate the difference between the actual output power summed up by the inverters of each unit and the set value;

[0051] Send control information to the overall dispatch of the photovoltaic system of the power station according to the obtained difference;

[0052] Obtain the power increase and decrease scheduling information for the total scheduling of the p...

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Abstract

The invention discloses a distributed photovoltaic power station energy management system, which includes an on-site monitoring module to obtain the power generation power setting value information of each power station photovoltaic system; receive the distribution information of the control module, and set the power value; the control module, Allocate power for the inverters of each unit, receive the power setting value information of the grid dispatching module, and send it to the on-site monitoring module; the inverter monitoring module monitors the power information of each unit inverter, and returns the information to the control module; grid dispatching The module sends the total power setting value to the control module for global distribution, and sends the power grid scheduling information to the control module. The invention also discloses an energy management method of a distributed photovoltaic power station. Through the present invention, the operating state of the distributed photovoltaic power station can be known and management and control can be carried out, the in-station management of the distributed photovoltaic power station can be realized, and relevant data can be uploaded to the scheduling at the same time, and the active power value can be issued by the dispatching, so that the distributed photovoltaic power station can be executed correctly.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a distributed photovoltaic power station energy management system and method. Background technique [0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by utilizing the photovoltaic effect of the semiconductor interface. It is mainly composed of three parts: solar panel, controller and inverter. Distributed photovoltaic power generation system, also known as distributed power generation or distributed energy supply, refers to the configuration of a small photovoltaic power generation power supply system at the user site or near the power site. Under the condition of solar radiation, the solar cells of the photovoltaic power generation system The solar energy converted and output by the module array is sent to the DC power distribution cabinet through the DC combiner box, and the grid-connected inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02J3/38H02J3/48
CPCH02J3/383H02J13/0006H02J3/48Y02E10/56Y02E40/70Y04S10/123Y04S10/50
Inventor 唐榆东张弛吴晓刚王莉丽黄睿杨亚兰黄伦达贺剑高峰邓明贵
Owner 唐榆东
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