CN203674727U

CN203674727U - Photovoltaic inverter system with signal control

Info

Publication number: CN203674727U
Application number: CN201320650137.2U
Authority: CN
Inventors: 马亮
Original assignee: BEIJING JINGYI RENEWABLE ENERGY ENGINEERING CO LTD
Current assignee: BEIJING JINGYI RENEWABLE ENERGY ENGINEERING CO LTD
Priority date: 2013-10-21
Filing date: 2013-10-21
Publication date: 2014-06-25
Anticipated expiration: 2023-10-21

Abstract

The utility model discloses a photovoltaic inverter system with signal control. The system comprises a photovoltaic array, an inverter, a step-up transformer and a transmission cable which are sequentially connected. The system is characterized in that the inverter is provided with a controller connected with a reception-transmission unit. The system further comprises a central processor with a reception-transmission port, wherein the central processor is connected with the reception-transmission unit of the controller by signals, and controls the operation state of the inverter. According to the photovoltaic inverter system provided by the utility model, the central processor receives data and transmits orders by wireless signals, thereby preventing complex wire connection and poor contact of wire terminals.

Description

A kind of photovoltaic DC-to-AC converter system of signal controlling

Technical field

The utility model relates to solar energy source apparatus field, relates in particular to a kind of photovoltaic parallel in system of signal controlling.

Background technology

At present, in the industry of utilizing solar energy source to generate electricity, between controller and controlled device, generally all adopt data wire to be directly connected, wiring complexity, reliability is low, line end loose contact easily occurs, cause cannot moving of whole control system, each treatment facility cannot reach normal operating state.

Utility model content

The utility model aims to provide a kind of photovoltaic DC-to-AC converter system of signal controlling, connects the loose contact that caused, the problem that causes control system to move to solve above-mentioned prior art center line.

The photovoltaic DC-to-AC converter system that the utility model discloses a kind of signal controlling, comprising: the photovoltaic array, inverter, step-up transformer and the transmission cable that connect successively, on described inverter, be provided with the controller that connects Transmit-Receive Unit,

Also comprise:

With the central processing unit of transmitting-receiving port, be connected with the described Transmit-Receive Unit of described controller by aspect, control the operating state of described inverter.

The quantity of described inverter is multiple;

Also comprise:

DC bus and ac bus;

Multiple described inverter parallels are between described DC bus and described ac bus, and the output of described photovoltaic array is connected with described DC bus, and the input of described step-up transformer is connected with described ac bus.

The quantity of described photovoltaic array is multiple;

Also comprise:

Header box, is arranged between described photovoltaic array and described DC bus;

The input of described header box, with many branch roads, is connected with the output of described photovoltaic array respectively;

The output of described header box is connected with described DC bus.

In described header box, be provided with wireless communication module and data acquisition module;

Described data acquisition module is connected with every described branch road of described header box, for gathering the voltage and current of described every branch road;

In described wireless communication module, be built-in with reflector and receiver, described receiver receives the data that described data collecting module collected arrives, and is transferred to described central controller by described reflector, realizes the wireless monitor to each described photovoltaic array.

The photovoltaic DC-to-AC converter system of a kind of signal controlling in the utility model, has the following advantages:

1, adopt the transmission of control system signal, avoided line to connect the loose contact that causes, the problem that causes control system to move;

2, when having avoided in inverter maintenance or having damaged, the stoppage in transit of whole system;

3, on resource allocation, accomplish unified control, avoid the wasting of resources;

4, cluster control system, its power stage according to putting into operation by platform, be fully loaded with, next operation mode carries out, the power loss of avoiding the incision dead band of other equipment except First inverter to cause.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 shows the photovoltaic DC-to-AC converter system schematic of signal controlling;

Fig. 2 shows the structural representation of inverter;

Fig. 3 shows the structural representation of header box.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.

As shown in Figure 1, the utility model discloses a kind of photovoltaic parallel in system of signal controlling, comprising:

Photovoltaic array 1, is composed in series by some photovoltaic battery panels, for solar energy is converted to electric energy;

Inverter 4, inverter bridge circuit, control logic device and filter circuit composition, be converted to alternating current for the direct current that photovoltaic array 1 is obtained, and its input is connected with the output of photovoltaic array 1;

Step-up transformer 6, raises for the alternating voltage that inverter 4 is obtained, and is convenient to transmission, and its former limit winding is connected with the output of inverter 4, and its secondary winding is connected with transmission cable 7.

As shown in Figure 2, further,

On control logic device 402 on inverter 4, be provided with Transmit-Receive Unit 404;

Also comprise:

With the central processing unit 8 of transmitting-receiving port 9, be connected with the Transmit-Receive Unit 404 of the control logic device 402 of described inverter 4 by aspect, control the operating state of described inverter 4.

Further, system also comprises: DC bus 3 and ac bus 5;

And the quantity of inverter 4 is multiple;

Multiple inverters 4 are connected in parallel between DC bus 3 and ac bus 5, and the output of photovoltaic array 1 is connected with DC bus 3, and the input of step-up transformer 6 is connected with ac bus 5.

Further, system also comprises:

Header box 2, is arranged between photovoltaic array 1 and DC bus 3, and the quantity of photovoltaic array 1 is multiple;

The input of header box 2, with many branch roads, is connected with the output of a photovoltaic array 1 respectively;

The output of header box 2 is connected with DC bus 3.

As shown in Figure 3, further, on every branch road of the input of header box 2, be respectively arranged with a DC fuse 201 and a lightning-protection module 202, on the output of header box 2, be provided with a DC circuit breaker 203;

Further, in header box 2, be also provided with wireless communication module 205 and data acquisition module 204;

Data acquisition module 204 is connected with every described branch road of header box 2, for gathering the voltage and current of every branch road;

In wireless communication module 205, be built-in with reflector and receiver, receiver receives the data that data acquisition module 204 collects, and is transferred to central controller 8 by reflector, realizes the wireless monitor to each photovoltaic array 1.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a photovoltaic DC-to-AC converter system for signal controlling, comprising: the photovoltaic array, inverter, step-up transformer and the transmission cable that connect successively, it is characterized in that, and on described inverter, be provided with the controller that connects Transmit-Receive Unit,

Also comprise:

2. system according to claim 1, is characterized in that, the quantity of described inverter is multiple;

Also comprise:

DC bus and ac bus;

3. system according to claim 2, is characterized in that, the quantity of described photovoltaic array is multiple;

Also comprise:

The output of described header box is connected with described DC bus.

4. system according to claim 3, is characterized in that, is provided with wireless communication module and data acquisition module in described header box;