Method and circuit arrangement to cover peak energy demands in electrical alternating or three-phase current networks
First Claim
1. A method of covering peak energy demand in an electrical AC or three-phase current network having a plurality of consumers of which at least some of the consumers are equipped with a stand-by power supply network having accumulators and at least one rectifier fed from the electrical network, the method comprising feeding, for a short term peak demand of the electrical network, a fraction of energy from the accumulators of each individual stand-by power supply network into the electrical network via an inverter as long as a peak demand is present and sufficient energy of the stand-by power supply networks is still available in the accumulators.
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Abstract
A method and circuit arrangement for covering peak energy demand in an electrical AC or three-phase current network having a plurality of consumers of which at least some of the consumers are equipped with a stand-by power supply network having accumulators and at least one rectifier fed from the electrical network. The method includes feeding a fraction of energy from the accumulators of each individual stand-by power supply network into the electrical network via inverters for a short term peak demand of the electrical network. The fraction of energy is fed from the accumulators as long as peak demand is present and sufficient energy for the stand-by power supply is still available in the accumulators.
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Citations
48 Claims
- 1. A method of covering peak energy demand in an electrical AC or three-phase current network having a plurality of consumers of which at least some of the consumers are equipped with a stand-by power supply network having accumulators and at least one rectifier fed from the electrical network, the method comprising feeding, for a short term peak demand of the electrical network, a fraction of energy from the accumulators of each individual stand-by power supply network into the electrical network via an inverter as long as a peak demand is present and sufficient energy of the stand-by power supply networks is still available in the accumulators.
- 25. A circuit arrangement for covering the peak energy demand in an electrical AC or three-phase current network having a plurality of consumers, of which at least some of the consumers are equipped with a stand-by power supply network which has accumulators and at least one rectifier fed from the electrical network for the charging of the accumulators, wherein at least a substantial part of all the consumers equipped with a stand-by power supply network is additionally equipped with at least one inverter fed from the electrical accumulators, which, by means of a control apparatus, can be applied to the electrical network instead of the rectifier, and which has a current conducting capacity such that the accumulators can transmit a substantial fraction of their energy of 10 to 15% to the electrical network within a short period of time of a few minutes when the inverters are applied to the electrical network.
Specification