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Regulation of Secondary Energy Contributions to the Grid

A technology of power grid and distribution network, applied in the direction of collectors, electric vehicles, electrical components, etc., can solve problems such as additional maintenance costs

Active Publication Date: 2017-03-01
FLUENCE ENERGY LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional power generation equipment often cannot react quickly enough to sudden changes, incurring additional fuel and maintenance costs when trying to do so quickly enough

Method used

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  • Regulation of Secondary Energy Contributions to the Grid
  • Regulation of Secondary Energy Contributions to the Grid
  • Regulation of Secondary Energy Contributions to the Grid

Examples

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Embodiment Construction

[0014] In order to more easily understand the principles underlying the present invention, an exemplary embodiment is described below with respect to the use of solar energy conversion devices, such as photovoltaic panels, as secondary sources. It is to be understood that the practical application of the present invention is not limited to this example, and that the present invention may be used in any environment where rapid swings in the output of an impairing energy source are desired.

[0015] figure 1 is a graph of the types of situations to which the present invention is applicable. For a particular time of day, eg, a given hour, the utility company expects a certain amount of output power from solar panels connected to the distribution grid. An upper limit 10 and a lower limit 12 may be determined for the period to define the range or band of allowable output power from the solar panels, taking into account the grid's ability to absorb changes. This range may vary wit...

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Abstract

The energy storage medium is combined with a secondary energy source that feeds the distribution grid. The charging and discharging behavior of the energy storage medium is controlled so that the rapid increase in the output of the secondary energy source is absorbed by the storage system, and the rapid decrease in the output of the secondary source is compensated by releasing the stored energy to the grid. The combined contribution of the secondary source and the energy storage system ensures that the rate of change does not exceed a defined level. The maximum and minimum output power levels of the secondary source can be determined to define the normal operating range. Charging or discharging of the energy storage system also occurs when the secondary output power level exceeds or falls below the limits of the defined range.

Description

technical field [0001] The present disclosure relates to the utilization of secondary energy sources to contribute electrical energy to distribution grids, and more particularly to the regulation of the total electrical energy supplied to the grid by such sources and the instantaneous increase or decrease of such electrical energy. Background technique [0002] Generally, utilities obtain electricity from one or more primary electricity generating sources, such as gas, coal-fired, nuclear, and / or hydroelectric power plants, for delivery to consumers via the distribution grid. The electrical energy supplied from these sources is relatively stable and can be easily adjusted to meet the needs of consumers while complying with standards for such electrical energy, such as rated voltage levels and rated frequency levels. To supplement electricity supplied by these primary sources, it is increasingly common to connect secondary energy sources, such as solar panels and wind turbine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/35H02J3/24H02J3/28
CPCH02J7/35H02J3/32
Inventor J·金泽C·J·谢尔顿S·米尔斯曼
Owner FLUENCE ENERGY LLC