Mains Supply Method and Apparatus
First Claim
1. A mains supply method, comprising:
- detecting whether a quantity of remaining electricity of a backup mains supply system is less than a preset value upon a mains failure, wherein the preset value is preset according to a quantity of electricity required for a critical load of a mains supply system to work properly for a time, and the preset value is less than a maximum quantity of backup electricity of the backup mains supply system;
controlling the backup mains supply system to supply electricity to the critical load, and detecting whether a quantity of feedable electricity of an electric vehicle of the mains supply system is greater than zero when the quantity of remaining electricity of the backup mains supply system is less than the preset value, wherein the quantity of feedable electricity of the electric vehicle of the mains supply system refers to a maximum quantity of electricity that can be provided for the critical load by all electric vehicles that use mains as a charging source and are being charged; and
controlling one or more electric vehicles that can provide feedable electricity to supply electricity to the critical load in a case that the quantity of feedable electricity of the electric vehicle of the mains supply system is greater than zero.
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Accused Products
Abstract
A mains supply method, including, upon a mains failure, detecting whether a quantity of remaining electricity of the backup mains supply system is not enough for supporting a critical load of the mains supply system to work properly for a time T; if yes, detecting whether a quantity of feedable electricity of an electric vehicle of the mains supply system is greater than zero; and if yes, controlling one or more electric vehicles that can provide feedable electricity and the backup mains supply system to jointly supply electricity to the critical load. Technical solutions provided in the embodiments of the present disclosure can keep, upon the mains failure, the critical load working as long as possible to wait for the mains to restore, that is, can improve working stability of the critical load.
11 Citations
12 Claims
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1. A mains supply method, comprising:
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detecting whether a quantity of remaining electricity of a backup mains supply system is less than a preset value upon a mains failure, wherein the preset value is preset according to a quantity of electricity required for a critical load of a mains supply system to work properly for a time, and the preset value is less than a maximum quantity of backup electricity of the backup mains supply system; controlling the backup mains supply system to supply electricity to the critical load, and detecting whether a quantity of feedable electricity of an electric vehicle of the mains supply system is greater than zero when the quantity of remaining electricity of the backup mains supply system is less than the preset value, wherein the quantity of feedable electricity of the electric vehicle of the mains supply system refers to a maximum quantity of electricity that can be provided for the critical load by all electric vehicles that use mains as a charging source and are being charged; and controlling one or more electric vehicles that can provide feedable electricity to supply electricity to the critical load in a case that the quantity of feedable electricity of the electric vehicle of the mains supply system is greater than zero. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mains supply apparatus, comprising:
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a backup supply system detecting module configured to detect, upon a mains failure, whether a quantity of remaining electricity of a backup mains supply system is less than a preset value, wherein the preset value is preset according to a quantity of electricity required for a critical load of a mains supply system to work properly for a time, and the preset value is less than a maximum quantity of backup electricity of the backup mains supply system; a control module configured to control, when the quantity of remaining electricity of the backup mains supply system is less than the preset value, the backup mains supply system to supply electricity to the critical load; and an electric vehicle detecting module configured to detect, when the quantity of remaining electricity of the backup mains supply system is less than the preset value, whether a quantity of feedable electricity of an electric vehicle of the mains supply system is greater than zero, wherein the quantity of feedable electricity of the electric vehicle of the mains supply system refers to a maximum quantity of electricity that can be provided for the critical load by all electric vehicles that use mains as a charging source and are being charged, wherein the control module is further configured to control, in a case that the quantity of feedable electricity of the electric vehicle of the mains supply system is greater than zero, one or more electric vehicles that can provide a quantity of feedable electricity to supply electricity to the critical load. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification