Mechatronic circuit breaker device and associated tripping method and use thereof in interrupting a high direct current
First Claim
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1. A mechatronic circuit-breaker device adapted to break an electrical current flowing through electrical power transmission means, the device comprising:
- a main branch comprising at least one main module comprising at least one sub-branch comprising at least one mechanical switch-disconnector connected in series with at least one breaker cell constituted of at least one power semiconductor element with controlled duty ratio;
an auxiliary branch electrically in parallel with the main branch and comprising;
at least one first sub-branch, called the timing sub-branch, and comprising at least one first breaker cell comprising a plurality of power thyristors in cascade, at least one of the timing sub-branches further comprising at least one first switching-assistance module with at least one first capacitor, electrically in parallel with its discharge resistance and a voltage surge limiter; and
a second sub-branch, called the arming sub-branch, electrically in parallel with the timing sub-branch and comprising at least one second breaker cell constituted of a plurality of power thyristors in cascade and at least one second switching-aid module with at least one second capacitor electrically in parallel with its discharge resistor; and
at least one main voltage surge limiter electrically in parallel with the main branch.
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Abstract
The invention relates to a new mechatronic circuit-breaker and its associated triggering method for breaking either alternating currents or direct currents at high voltages.
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Citations
21 Claims
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1. A mechatronic circuit-breaker device adapted to break an electrical current flowing through electrical power transmission means, the device comprising:
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a main branch comprising at least one main module comprising at least one sub-branch comprising at least one mechanical switch-disconnector connected in series with at least one breaker cell constituted of at least one power semiconductor element with controlled duty ratio; an auxiliary branch electrically in parallel with the main branch and comprising; at least one first sub-branch, called the timing sub-branch, and comprising at least one first breaker cell comprising a plurality of power thyristors in cascade, at least one of the timing sub-branches further comprising at least one first switching-assistance module with at least one first capacitor, electrically in parallel with its discharge resistance and a voltage surge limiter; and a second sub-branch, called the arming sub-branch, electrically in parallel with the timing sub-branch and comprising at least one second breaker cell constituted of a plurality of power thyristors in cascade and at least one second switching-aid module with at least one second capacitor electrically in parallel with its discharge resistor; and at least one main voltage surge limiter electrically in parallel with the main branch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification