Variable speed drive provided with a supercapacitor module
First Claim
1. A variable-speed drive comprising:
- a DC power supply bus including a positive line and a negative line;
a bus capacitor connected between the positive line and the negative line of the DC power supply bus;
an inverter module powered by the DC power supply bus and controlled to deliver a variable voltage to an electrical load;
a first switching leg connected between the positive line and the negative line of the bus and comprising at least one first electronic switch;
a first module comprising a braking resistor or a second module comprising means for storing and regenerating electrical energy generated during braking of the electrical load;
wherein the first module and the second module are removable and interchangeable;
wherein the first module and the second module take a form of a cassette that connects to the DC power supply bus and to the first switching leg.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable-speed drive including: a DC power supply bus including a positive line and a negative line; a bus capacitor connected between the positive line and the negative line of the DC power supply bus; an inverter module supplied with power by the DC power supply bus and controlled to provide a variable voltage to an electrical load; a first switching branch connected between the positive line and the negative line of the bus and including at least one first electronic switch; and a first module including a braking resistor, or a second module including a mechanism for storing and regenerating electrical energy generated during braking of the electrical load, wherein the first module and the second module are removable and interchangeable.
14 Citations
8 Claims
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1. A variable-speed drive comprising:
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a DC power supply bus including a positive line and a negative line; a bus capacitor connected between the positive line and the negative line of the DC power supply bus; an inverter module powered by the DC power supply bus and controlled to deliver a variable voltage to an electrical load; a first switching leg connected between the positive line and the negative line of the bus and comprising at least one first electronic switch; a first module comprising a braking resistor or a second module comprising means for storing and regenerating electrical energy generated during braking of the electrical load; wherein the first module and the second module are removable and interchangeable; wherein the first module and the second module take a form of a cassette that connects to the DC power supply bus and to the first switching leg. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification