Method of discharging at least one electrical energy storage unit, in particular a capacitor, of an electrical circuit
First Claim
1. A method for discharging at least one electrical energy storage unit comprising, a capacitor or a standalone source of electrical energy of an electrical circuit, the electrical circuit further comprising a switching system comprising a plurality of legs each extending in parallel between a positive conductor and a negative conductor of a DC bus, each leg comprising at least two switching cells in series, the method comprising:
- a first step during which a short circuit is produced in a first leg and a second leg so as to define a path allowing the discharge current to flow between the positive conductor and the negative conductor of the DC bus; and
a second step during which a short circuit is produced in the second leg and another leg so as to define a path allowing the discharge current to flow between the positive conductor and the negative conductor of the DC bus.
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Abstract
Method of discharging at least one electrical energy storage unit of an electrical circuit (1), the electrical circuit (1) furthermore comprising a switching system (2) comprising a plurality of arms (3) each extending in parallel between a positive conductor (4) and a negative conductor (5) of a DC bus (7), each arm (3) comprising in series at least two switching cells (10), in which method, to discharge the capacitor (20, 40), a short-circuit between the positive conductor (4) and the negative conductor (5) of the DC bus (7) is produced in at least two of the arms (3) of the switching system (2) so as to allow the discharge current (IDC) of the electrical energy storage unit to flow from said positive conductor (4) to said negative conductor (5).
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Citations
13 Claims
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1. A method for discharging at least one electrical energy storage unit comprising, a capacitor or a standalone source of electrical energy of an electrical circuit, the electrical circuit further comprising a switching system comprising a plurality of legs each extending in parallel between a positive conductor and a negative conductor of a DC bus, each leg comprising at least two switching cells in series, the method comprising:
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a first step during which a short circuit is produced in a first leg and a second leg so as to define a path allowing the discharge current to flow between the positive conductor and the negative conductor of the DC bus; and a second step during which a short circuit is produced in the second leg and another leg so as to define a path allowing the discharge current to flow between the positive conductor and the negative conductor of the DC bus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification