CN209119824U

CN209119824U - A kind of solution industry and commerce photovoltaic is generated power for their own use the relatively low device of power factor

Info

Publication number: CN209119824U
Application number: CN201820778684.1U
Authority: CN
Inventors: 黄�俊; 陈远进
Original assignee: Zhuoyang Energy Group Co Ltd
Current assignee: Zhuoyang Energy Group Co Ltd
Priority date: 2018-05-24
Filing date: 2018-05-24
Publication date: 2019-07-16
Anticipated expiration: 2028-05-24

Abstract

It generates power for their own use the relatively low device of power factor the utility model discloses a kind of solution industry and commerce photovoltaic, including public electric wire net, it is characterized in that, the public electric wire net is electrically connected with ammeter, photovoltaic has been electrically connected without work controller EMU in the ammeter, no work compensates equipment, current transformer and examination ammeter, the current transformer is electrically connected with customer charge, the utility model can be to the P of property right separation, Q is acquired, data after acquisition are quickly given under every inverter in a broadcast manner to send instructions, it is issued by inverter idle, to adjust the power factor of property right separation, guarantee that plant area's power factor meets grid company requirement in real time, and increasing current transformer can be excessive to avoid the consumption of no work, cause to impose a fine.

Description

A kind of solution industry and commerce photovoltaic is generated power for their own use the relatively low device of power factor

Technical field

It generates power for their own use power the utility model relates to photovoltaic devices technical field more particularly to a kind of solution industry and commerce photovoltaic The relatively low device of factor.

Background technique

The distributed project for mode of generating power for their own use will be following development trend, but owner have to face one it is important The problem of, that is, the mode of generating power for their own use is likely to result in power factor decline, accidentally, does not earn money not only, instead can Face significant fine, just have many owners reflection before because of the power factor case not up to standard imposed a fine by power grid because power because Number is too low, will affect the safety of power grid and the effective rate of utilization of electric energy, so grid company proposes the power factor of commercial power Requirement is gone out, when power factor is not up to standard, demand charge will have been improved, be equivalent to covert fine, photovoltaic power station is nearest Accessing user's internal electric network, photovoltaic system grid entry point is in property right separation hereinafter, and existing electrovalence policy is according to property right point The power factor examination of boundary's point is idle, and when calculating power factor, and user send active by 0 calculating, plant area room to power grid Top has filled after photovoltaic generates power for their own use, and active a part needed for loading is provided by inverter, and causing to load having from what power grid obtained Function is reduced, and is derived from the idle constant of power grid, calculates formula, since molecule is constant, denominator according to the power factor of grid company Become larger, so the sharp fall of property right separation power factor certainly will will be caused to bring great number lower than the regulation of grid company Electricity charge fine.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of solution industry and commerce proposed Photovoltaic is generated power for their own use the relatively low device of power factor.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of solution industry and commerce photovoltaic is generated power for their own use the relatively low device of power factor, including public electric wire net, which is characterized in that The public electric wire net is electrically connected with ammeter, and the ammeter has been electrically connected photovoltaic and has set without work controller EMU, without work compensation Standby, current transformer and examination ammeter, the current transformer are electrically connected with customer charge.

Preferably, the photovoltaic is electrically connected with centralized inverter without work controller EMU.

Preferably, the photovoltaic is electrically connected with data collector without work controller EMU.

Preferably, the data collector is electrically connected with string type inverter, the centralized inverter and string type Inverter is electrically connected with examination ammeter

Preferably, the photovoltaic without between work controller EMU and data collector be equipped with inverter communicate.

Preferably, the public electric wire net is KV route.

Compared with prior art, the utility model has the beneficial effects that

In the utility model, by setting photovoltaic without work controller EMU and current transformer, property right point can be acquired in real time P, Q of boundary's point are compared analysis with pre-set target power factor, calculate it is idle needed for property right separation, and In a broadcast manner quickly to sending instructions under every inverter, issued by inverter it is idle, to adjust the function of property right separation Rate factor guarantees that plant area's power factor meets grid company requirement in real time, does not influence the power quality of plant area and having for plant area Function power generation, guarantee power grid security, and increase by one group of current transformer in user load survey, acquisition load survey current direction with 10KV current transformer consumption value, avoids reactive power consumption excessive, causes to impose a fine.

To sum up, P, Q of property right separation can be acquired, the data after acquisition quickly give every in a broadcast manner Send instructions under inverter, issued by inverter idle, to adjust the power factor of property right separation, guarantees plant area's power factor Meet grid company requirement in real time, and increasing current transformer can be excessive to avoid the consumption of no work, causes to impose a fine.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of solution industry and commerce photovoltaic generate power for their own use the showing of the relatively low device of power factor It is intended to.

In figure: 1 public electric wire net, 2 ammeters, 3 photovoltaics are without work controller EMU, 4 centralized inverters, 5 data collectors, 6 groups String inverter, 7 examination ammeters, 8 customer charges, 9 compensate equipment, 10 current transformers without work.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1, a kind of solution industry and commerce photovoltaic is generated power for their own use the relatively low device of power factor, including public electric wire net 1, public Common-battery net 1 is electrically connected with ammeter 2, and ammeter 2 has been electrically connected photovoltaic and has compensated equipment 9, electricity without work controller EMU3, without work Current transformer 10 and examination ammeter 7, current transformer 10 are electrically connected with customer charge 8.

Photovoltaic is electrically connected with centralized inverter 4 without work controller EMU3, and photovoltaic is electrically connected without work controller EMU3 There is data collector 5, data collector 5 is electrically connected with string type inverter 6, centralized inverter 4 and string type inverter 6 With examination ammeter 7 be electrically connected, photovoltaic without between work controller EMU3 and data collector 5 be equipped with inverter communicate, it is public Power grid 1 is 10KV route.

Working principle: photovoltaic reactive controller EMU3 is installed in photovoltaic system, property right separation can be acquired in real time P, Q is compared analysis with pre-set target power factor, calculate it is idle needed for property right separation, and with broadcast Mode quickly to sending instructions under centralized inverter 4, and photovoltaic reactive controller EMU3 passes through inverter communication apparatus It issues and instructs to data collector 5, then data collector 5 will be acquired data, and instruction is then distributed to a group string again Formula inverter 6, issued finally by centralized inverter 4 and string type inverter 6 it is idle, to adjust the power of property right separation Factor, guarantee plant area's power factor meet in real time grid company requirement, do not influence plant area power quality and plant area it is active Power generation guarantees power grid security, and increases one group of current transformer 10 in customer charge 8, acquisition load survey current direction with 10KV current transformer consumption value, avoids reactive power consumption excessive, causes to impose a fine, the utility model can P to property right separation, Q is acquired, and the data after acquisition quickly to sending instructions under every inverter, issue nothing by inverter in a broadcast manner Function guarantees that plant area's power factor meets grid company requirement in real time, and increase electricity to adjust the power factor of property right separation Current transformer can be excessive to avoid the consumption of no work, causes to impose a fine.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

The relatively low device of power factor, including public electric wire net (1) 1. a kind of solution industry and commerce photovoltaic is generated power for their own use, feature exists In the public electric wire net (1) is electrically connected with ammeter (2), and photovoltaic has been electrically connected without work controller in the ammeter (2) EMU (3), equipment (9), current transformer (10) and examination ammeter (7) are compensated without work, the current transformer (10) is electrically connected There are customer charge (8).
The relatively low device of power factor 2. a kind of solution industry and commerce photovoltaic according to claim 1 is generated power for their own use, feature It is, the photovoltaic is electrically connected with centralized inverter (4) without work controller EMU (3).
The relatively low device of power factor 3. a kind of solution industry and commerce photovoltaic according to claim 2 is generated power for their own use, feature It is, the photovoltaic is electrically connected with data collector (5) without work controller EMU (3).
The relatively low device of power factor 4. a kind of solution industry and commerce photovoltaic according to claim 3 is generated power for their own use, feature It is, the data collector (5) is electrically connected with string type inverter (6), and the centralized inverter (4) and string type are inverse Become device (6) to be electrically connected with examination ammeter (7).
The relatively low device of power factor 5. a kind of solution industry and commerce photovoltaic according to claim 1 is generated power for their own use, feature Be, the photovoltaic without between work controller EMU (3) and data collector (5) be equipped with inverter communicate.
The relatively low device of power factor 6. a kind of solution industry and commerce photovoltaic according to claim 1 is generated power for their own use, feature It is, the public electric wire net (1) is 10KV route.