CN204810198U - Distributing type DC power supply based on solar photovoltaic power generation system - Google Patents

Abstract

The utility model relates to a distributing type DC power supply based on solar photovoltaic power generation system, its characterized in that includes solar cell module, and circuit module, singlechip circuit module, relay circuit module, the circuit module that charges, battery module, the circuit module that steps up, rectification circuit module are kept apart in buck step -down circuit module, optical coupling. The utility model discloses a solar photovoltaic power generation system's distributed dc circuit, the electricity generation mode under the different environment condition is selected through controlling the work of different relay circuit in introducing traditional distributed generator system to the data acquisition control technique that wherein constitutes the singlechip: the system produces the energy through photovoltaic power generation system and supplies load work when having illumination, when not having illumination, produce the energy through commercial power hardware electrical power generating system and supply load work, when not having illumination and commercial power, the energy of storing the battery through the booster system steps up into the required energy of load work. With this utilization ratio that reduces grid voltage, energy saving loss. In quoting traditional distributed generator with the green resource of solar energy, the energy saving has been realized, the problem of high conversion efficiency. The utility model provides a performance safety, the digital distributed generator of intelligence.

Description

A kind of distributed DC power based on solar photovoltaic generation system

Technical field

The utility model belongs to intelligent distributed field of power supplies, relates to a kind of distributed DC power based on solar photovoltaic generation system.

Background technology

Along with communication products are at new forms of energy, the extensive use in digital control system field.Power electronic device starts more to complicated, digitlization, and intelligent direction develops.One of overall development trend of power technology is modular distributed power supply system.Traditional distributed power source utilizes prime AC-DC module, direct voltage line voltage being transformed into a certain regulation forms DC bus voltage, then the DC-DC module that the constant drive voltage formed is transferred in successive load is completed the function of whole drive circuit constant pressure and flow.What this control mode utilized always is the voltage be converted into by line voltage needed for product, consumes the energy large.Come out " centralized power generation " pattern of traditional single electric power system of existing energy crisis and large area blackout can cause large area power system device to paralyse when electrical network has a power failure suddenly, cause tremendous economic to lose, fail safe Gao Bugao.Single dependence grid generation pattern can not meet the control system demand for development of the many performance-baseds of modern digital intelligence.The data acquisition control technology that single-chip microcomputer is formed is incorporated in traditional distributed power-supply system herein, by controlling the power generation mode that different relay on-off circuit is selected in varying environment situation: system, when there being illumination, produces the energy for loaded work piece by photovoltaic generating system; When there is no illumination, produce the energy for loaded work piece by civil power hardware power system; When there is no illumination and civil power, by booster system, the energy boost of battery stores is become the energy needed for loaded work piece.The utilance of line voltage is reduced, energy savings loss with this.Therefore design a high efficiency, safety and stability low-power consumption direct current distributed system power supply imperative.

Summary of the invention

The purpose of this utility model mainly solves at traditional distributed power-supply device, power consumption is large, uneasy congruent shortcoming, by controlling the power generation mode that different relay on-off circuit is selected in varying environment situation, solar energy green resource is referred in traditional distributed power supply, achieve energy savings, the problem of high transformation efficiency.Provide a kind of performance safety, intelligent digitalized distributed power source.The technical scheme that the utility model technical solution problem is taked is as follows:

The utility model comprises solar module, Buck reduction voltage circuit module, optical coupling buffer circuit module, single chip circuit module, relay circuit module, charging circuit module, battery module, booster circuit module, rectification circuit module.

Described solar cell exports the input of termination Buck reduction voltage circuit module, the output of the input termination Buck reduction voltage circuit module of optical coupling buffer circuit module, the output of the input termination optical coupling buffer circuit module of single chip machine controlling circuit module, the output of the input contact relay module 9 of charging circuit module, the output of the input termination charging circuit module of relay circuit module 5, the input of the input termination Buck reduction voltage circuit of battery module, the output contact relay circuit module 6 of battery module, the output of the input contact relay circuit module 6 of booster circuit module, the output of the input contact relay module 9 of rectification circuit module, the input of the output terminating load of booster circuit module.

The utility model has following beneficial effect relative to prior art: this equipment is by the burning natural gas distributed power apparatus of integrated solar photovoltaic generating system, civil power electricity generation system and boosting hardware system, mainly solve at traditional distributed power-supply device, power consumption is large, uneasy congruent shortcoming, by controlling the power generation mode that different relay on-off circuit is selected in varying environment situation, solar energy green resource is referred in traditional distributed power supply, achieves energy savings, the problem of high transformation efficiency.Provide a kind of performance safety, intelligent digitalized distributed power source.

Accompanying drawing explanation

Fig. 1 is structured flowchart of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a kind of distributed DC power based on solar photovoltaic generation system, is characterized in that comprising solar module 1, Buck reduction voltage circuit module 2, optical coupling buffer circuit module 3, single chip machine controlling circuit module 4, relay circuit module 5,, relay circuit module 6, charging circuit module 7, battery module 8, relay circuit module 9, booster circuit module 10, rectification circuit module 11.

The specific works process of this equipment is: when there being sunlight, solar energy source is converted into direct current by photovoltaic effect by solar cell, produce 220V voltage by a Buck reduction voltage circuit part normally to work for load, another part produces 12V low dc voltage and charges a battery simultaneously, and by optical coupling isolation circuitry senses, whether solar cell is in work simultaneously.When not having sunlight, single chip machine controlling circuit will be connected by control relay 6, by booster circuit, 12V voltage is raised to 220V for load normal working voltage; Storage battery current voltage will be shown on single chip circuit LED charactron simultaneously.At this moment battery tension is because the voltage being in discharge condition storage can reduce gradually, and when being reduced to predetermined threshold value voltage, Single Chip Microcomputer (SCM) system, by engage relay circuit 9, disconnects relay circuit 6 simultaneously.The line voltage of access exports 220V direct voltage for load normal working voltage by rectification circuit, and Single Chip Microcomputer (SCM) system engage relay circuit 5 makes charge in batteries.Single Chip Microcomputer (SCM) program system is fed back to by sampled voltage, be presented at by charge in batteries magnitude of voltage on LED charactron, after storage battery is full of electricity, programming system controls engage relay circuit 6, disconnect relay circuit 9, battery circuit charge function state will be converted into booster circuit functional status.At this moment 12V photovoltaic conversion is that 220V load normally works required voltage by electric discharge and by booster circuit by storage battery.So go round and begin again, the relay circuit break-make different according to different environment condition control is controlled different power generation modes by Single Chip Microcomputer (SCM) system: when utility grid has a power failure, available photovoltaic systems generate electricity; Utility grid generating can be connected when not having illumination to generate electricity; When luminous energy and utility grid system all can not generate electricity, storage volume and the working quantity that directly can control storage battery are produced for load normal working voltage by booster circuit.

Claims (1)

1. the distributed DC power based on solar photovoltaic generation system, it is characterized in that comprising solar module, Buck reduction voltage circuit module, optical coupling buffer circuit module, single chip circuit module, relay circuit module, charging circuit module, battery module, booster circuit module, rectification circuit module;

Described solar cell exports the input of termination Buck reduction voltage circuit module, the output of the input termination Buck reduction voltage circuit module of optical coupling buffer circuit module, the output of the input termination optical coupling buffer circuit module of single chip machine controlling circuit module, the output of the input contact relay module 9 of charging circuit module, the output of the input termination charging circuit module of relay circuit module 5, the input of the input termination Buck reduction voltage circuit of battery module, the output contact relay circuit module 6 of battery module, the output of the input contact relay circuit module 6 of booster circuit module, the output of the input contact relay module 9 of rectification circuit module, the input of the output terminating load of booster circuit module.