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Power supply equipment, power generation unit and power generation system

A technology of power generation unit and power supply equipment, which is applied in the field of power system to achieve the effect of stable operation

Active Publication Date: 2017-04-12
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the AC-driven generating unit can only work in the grid-stabilizing mode

Method used

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  • Power supply equipment, power generation unit and power generation system
  • Power supply equipment, power generation unit and power generation system
  • Power supply equipment, power generation unit and power generation system

Examples

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Embodiment Construction

[0031] In the following, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0032] image 3 A schematic diagram of a power generating unit according to one embodiment of the invention is shown. image 3 The power generation unit 300 shown is AC driven and can convert energy such as intermittent energy, renewable energy, or intermittent renewable energy into alternating current and output it to a grid and / or a point of public connection to which loads can be connected. Wherein, the power grid may be a microgrid or a backbone power grid, and the energy source may be, for example, photovoltaic power, wind power, tidal power, and the like. Such as image 3 As shown, the power generation unit 300 may include an energy input module 310 , an energy storage module 320 and a power supply device 330 .

[0033] The energy input module 310 may be used to capture one or more energy sources and output electrical energy co...

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PUM

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Abstract

The invention relates to power supply equipment, a power generation unit and a power generation system. The power supply equipment comprises a power generation unit driver, an AC (alternating current) motor, a synchronous generator, a first switch and a by-pass switch, wherein the power generation unit driver is used for converting DC (direct current) into AC or converting AC into DC; the AC motor is used for converting AC converted by the power generation unit driver into mechanical energy if AC converted by the power generation unit driver is received; the synchronous generator is used for generating AC according to the mechanical energy converted by the AC motor and outputting AC to a public connection point; the first switch is connected between the power generation unit driver and the AC motor; and one end of the by-pass switch is connected between the power generation unit driver and the first switch, and the other end is connected between the synchronous generator and the public connection point. By using the power supply equipment, the power generation unit and the power generation system, the power generation unit driven by AC can work in multiple modes, the operation mode of the power generation unit can be flexibly controlled according to conditions of the power grid or loads connected with the public connection point, the environment conditions and the condition of the power generation unit itself, and operation can be more efficient and stable.

Description

technical field [0001] The invention relates to a power system, in particular to a power supply device, a power generation unit and a power generation system. Background technique [0002] At present, a microgrid can refer to a small power generation, distribution, and consumption system composed of one or more parts such as distributed power generation units, energy conversion devices, monitoring devices, protection devices, and related loads. The so-called small is smaller than the scale of the main power grid. The microgrid can run in parallel / parallel / grid-connected with the external power grid (such as the main power grid, etc.), or it can run independently. Generally speaking, a microgrid is an autonomous system capable of self-control, self-protection, and self-management. [0003] The power generation units in the microgrid generally have multiple types such as the first energy generation unit and the second energy generation unit. The first energy generating unit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
Inventor 李晶张京伟廖华马琳
Owner SIEMENS AG
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