Power control method and device, inverter device and power station controller

A power control and inverter technology, applied in the field of communication, can solve the problems of increasing the investment cost of photovoltaic station construction and operation and maintenance costs

Pending Publication Date: 2018-02-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a power control method, device, inverter equipment, and power station controller to at least solve the problem of reactive power or harmonics in the related art by adding power quality monitoring and governance system units. The problem of website construction investment cost and operation and maintenance cost

Method used

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  • Power control method and device, inverter device and power station controller
  • Power control method and device, inverter device and power station controller
  • Power control method and device, inverter device and power station controller

Examples

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Embodiment 1

[0055] The method embodiment provided in Embodiment 1 of the present application may be executed in an inverter device or a similar computing device. Take running on the inverter device as an example, figure 1 It is a hardware structural frame of an inverter device according to a power control method in an embodiment of the present invention Figure 1 . Such as figure 1 As shown, the inverter device 10 may include one or more (only one is shown in the figure) first processor 102 (the first processor 102 may include but not limited to microprocessor MCU or programmable logic device FPGA, etc. processing means), a first memory 104 for storing data, and a first transmission means 106 for communication functions. Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, the inverter device 10 may also include a ratio figure 1 more or...

Embodiment 2

[0117] The method embodiment provided in Embodiment 2 of the present application may be executed in an inverter device or a similar computing device. Take running on the inverter device as an example, Figure 6 It is the hardware structural frame of the power station controller of a power control method in the embodiment of the present invention Figure II . Such as Figure 6 As shown, the power plant controller 60 may include one or more (only one is shown in the figure) second processors 602 (the second processors 602 may include but not limited to microprocessor MCU or programmable logic device FPGA, etc. device), a second memory 604 for storing data, and a second transmission device 606 for communication functions. Those of ordinary skill in the art can understand that, Figure 6 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, the plant controller 60 may also include a ratio Fig...

Embodiment 3

[0161] In this embodiment, a power control device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has been explained will not be repeated here. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0162] Figure 12 is the structural frame of the power control device according to the embodiment of the present invention Figure 1 ,Such as Figure 12 As shown, the device includes:

[0163] The receiving module 122 is used for the inverter device to receive the control instruction, wherein the control instruction carries the first parameter for determining the reactive power compensation amount of the inverter device to compensate the reactiv...

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Abstract

The invention provides a power control method and device, an inverter device and a power station controller. The power control method includes the steps that the inverter device receives a control instruction, wherein a first parameter for determining the reactive power compensation quantity by which the reactive power of a photovoltaic power station system is compensated through the inverter device and/or a second parameter for determining the harmonic compensation quantity by which harmonic waves of the photovoltaic power station system are compensated through the inverter device are/is carried in the control instruction; the inverter device determines the reactive power compensation quantity of reactive power compensation of the photovoltaic power station system of the inverter device according to the first parameter, and/or determines the harmonic compensation quantity of harmonic compensation of the photovoltaic power station system of the inverter device according to the second parameter; through the inverter device, the reactive power of the photovoltaic power station system is compensated according to the determined reactive power compensation quantity, and/or the harmonicwaves of the photovoltaic power station system are compensated according to the harmonic compensation quantity.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a power control method, device, inverter equipment, and power station controller. Background technique [0002] Most of the loads in the power system are inductive loads, which reduces the power factor of the grid, resulting in a decrease in voltage quality, shortened equipment life, and increased power supply investment. A reasonable solution is to add a capacitor compensation cabinet (reactive power compensation device) on the spot. [0003] Power grid harmonic problems are mainly caused by the widespread use of power electronic equipment, specifically two points: first, a large number of reactive power compensation devices are used to improve the power factor; second, power electronic transformers are widely used to improve system reliability and efficiency. streamer. [0004] As the penetration depth of photovoltaic power generation in the power system increases, the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/01H02J3/18H02J3/38
CPCH02J3/383H02J3/01H02J3/18H02J3/48H02J3/38Y02E40/30Y02E10/56Y02E40/40
Inventor 戴志威
Owner ZTE CORP
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