CN201018311Y

CN201018311Y - Low voltage DC power supply system using solar energy, wind field for generation

Info

Publication number: CN201018311Y
Application number: CNU2006200734222U
Authority: CN
Inventors: 王干
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-04
Filing date: 2006-06-04
Publication date: 2008-02-06
Anticipated expiration: 2016-06-04

Abstract

The utility model relates to a low-voltage DC power distribution system utilizing solar energy and wind energy to generate electricity, which is composed of solar photovoltaic components and a wind generator, low-voltage DC apparatus, a storage battery, a master device, a multi-switch low-voltage DC power source socket, and a low-voltage DC main line. The utility model is characterized in that: the solar photovoltaic components and the wind generator are connected with the power input ends a b of a master control device, the power input ends a b of the master control device can also be switched to utility power, power output ends e f of the master control device are respectively connected with the low-voltage DC main lines, and power output ends c d of the master control device are respectively connected with storage batteries. The master control device is provided with a self light control, and low-voltage DC can be directly supplied to apparatus regardless of inversion in night.

Description

The low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity

Technical field

The utility model relates to a kind of low-voltage DC supply using electricity system, is specifically related to a kind of low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity.

Background technology

The present existing electricity supplying and using system that can generate electricity with solar energy, wind field adopts inverter more, is the low-voltage DC inversion to use behind the 220V/50HZ or be incorporated into the power networks, when voltage transitions, to lose certain electric energy like this, reduced power consumption efficiency, increased electric cost, there is certain potential safety hazard in high pressure electricity consumption simultaneously, and very unstable to the civil power of rationing the power supply, have a power failure with the some peak, has reduced the reliability of system.The application and the popularization of solar energy and wind field energy have been hindered so greatly.Along with the development of society, energy crisis is remarkable day by day.Power-saving technology and energy-conserving product are the social development problem demanding prompt solutions.Along with the development of science and technology energy-conserving product also in continuous appearance, but these products are mainly to the low-voltage direct trend development.So both improved power consumption efficiency, energy savings has improved the fail safe and the reliability of electricity consumption again.

Summary of the invention:

In order to improve the utilization ratio of solar energy power generating or wind power generation, solve problem and energy-conservation development trend that above-mentioned employing inversion transformation technique exists, the utility model provides and a kind ofly need not adopt inverter, and high efficiency, low cost, the low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity of high reliability.

The technical scheme that its technical problem that solves the utility model adopts is: solar photovoltaic assembly or wind-driven generator link to each other with the power input end of master control set, by day or low-voltage DC that solar photovoltaic assembly under the situation of wind or wind-driven generator send is arranged through master control set, need not pass through the inversion conversion, directly to charge in batteries, master control set has rectification module, charge and discharge protecting module, light-operated module, rectification module is adjusted solar photovoltaic assembly or wind-driven generator sends electric power, with stable electric current to charge in batteries, when battery tension was raised to the upper voltage limit of setting, controller stopped to charge in batteries, to prevent over-charging of battery, when battery discharging is prescribed a time limit to the following of setting voltage, controller stops discharge, automatically switches to by the civil power power supply voltage signal of light-operated module Direct Sampling solar panel, voltage as solar panel surpasses the threshold voltage of setting, be identified as daytime, master control set disconnects the electrical appliance control loop, to charge in batteries; And the electric power that wind-driven generator sends directly to charge in batteries, is not subjected to the influence of light conditions.The load output of master control set links to each other with the low-voltage direct backbone, and the power output end of master control set and storage battery connect, and when the low-voltage direct electrical appliance is worked, exports low-voltage direct electric power by controller to load.

The beneficial effects of the utility model:

1, owing to adopted non-inversion transformation technique to reduce electric cost, improved the service efficiency of photovoltaic and wind field generating.

2, owing to adopted low-voltage power supply, improved the fail safe of electricity consumption

3, adopt high brightness LED lighting lamp as Low voltage lamp, can save electric energy 50%--60%, can prolong the useful life of lamp simultaneously greatly, greatly saves energy.

4, owing to adopted storage battery accumulation of energy function, under the mains failure situation, system still can normally move, and improves reliability of system operation greatly.

5, owing to adopted the low-voltage DC supply system to increase a kind of electricity consumption standard selection to the user, especially for the electrical equipment of some fashion that come into vogue now such as LCD, intelligent security guard electric equipment products etc. all need low-voltage power supply, make a lot of electrical equipment not need step-down rectifier just can directly use safe ready.

Description of drawings:

The utility model is described in further detail below in conjunction with drawings and Examples.

The low-voltage direct electricity supplying and using system structural representation that Fig. 1 utilizes solar energy, wind field to generate electricity for the utility model;

Fig. 2 is many grades of low-voltage dc power supply socket external form figure of this chamber utility model;

Among the figure: 1, solar photovoltaic assembly or wind-driven generator, 2, low-voltage direct electrical appliance, 3, storage battery, 4, master control set, 5, many grades of low-voltage DC supply sockets, 6, low-voltage direct backbone, 7, jack, 8, the knob of transferring the files, 9 master control set power input end mouth ab, 10 master control set output port cd, 11 master control set load output ef.

Embodiment

Referring to Fig. 1, this usefulness is novel comprising in fact: solar photovoltaic assembly or wind-driven generator 1, low-voltage direct electrical appliance 2, storage battery 3, master control set 4, multiterminal low-voltage DC supply socket 5, low-voltage direct backbone 6.Solar photovoltaic assembly or wind-driven generator 1 link to each other with the power input end ab9 of master control set during enforcement, as solar radiation or when blowing, the electric power that solar photovoltaic assembly or wind-driven generator 1 are produced is delivered to storage battery 3 through master control set output cd10, the load output ef11 of master control set links to each other with low-voltage direct backbone 6, and low-voltage direct electrical appliance 2 all links to each other with low-voltage direct backbone 6 with multiterminal low-voltage DC supply socket 5.When 2 work of low-voltage direct electrical appliance, its electric power is transported to low-voltage direct backbone 6 by storage battery 3 after master control set 4 controls, constitute the loop, electrical work.If because outside cause (as long-term wet weather etc.) also available civil power was transported to low-voltage direct backbone 6 when storage battery was under-voltage after master control set 4 controls, constituted the loop, made the electrical equipment operate as normal.

Multiterminal low-voltage DC supply socket 5 has pressure regulation turn-knob 8 and jack 7 referring to Fig. 2 on the plate face.When electrical appliance needs low-voltage dc power supply, rotate pressure regulation turn-knob 8 according to actual needs and make pointed correspondent voltage value on it, institute's target voltage digital is respectively 6V, 12V, four kinds of specifications of 24V, 36V on the plate face, plug is inserted jack 7 get final product.Note the positive and negative electrode of jack.The jack of this socket is "-" " | " shape, represents the negative, positive utmost point.

Because the high efficiency of transferring electric power in the utility model, the high efficiency of the high efficiency of unsteady flow and the high efficiency of battery applications and electrical appliance, both saved the energy to greatest extent, the fail safe and the reliability that have improved residential electricity consumption again greatly improve, improve living standards of the people thereby make, helped promoting the application of photovoltaic and wind-powered electricity generation.

Claims

1. the low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity, comprise solar photovoltaic assembly or wind-driven generator, the low-voltage direct electrical appliance, storage battery, master control set, many grades of low-voltage DC supply sockets, the low-voltage direct backbone, it is characterized in that described solar photovoltaic assembly or wind-driven generator electricity power, after master control set control, need not pass through the inverter conversion, directly supply with the low-voltage direct electrical appliance with the low-voltage direct form.

2. the low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity according to claim 1 is characterized in that solar photovoltaic assembly or wind-driven generator electricity power store in the storage battery earlier.

3. the low-voltage direct electricity supplying and using system that utilizes solar energy, wind field to generate electricity according to claim 1 is characterized in that the low-voltage direct backbone adopts the dc low-voltage transmission means, and its transmission voltage adopts 48V, 36V, 24V and four kinds of specifications of 12V.