Switched reluctance generator
First Claim
1. A Switched Reluctance (SR) generator comprising:
- an excitation capacitor which provides a phase winding with an excitation current;
a current source connected to the excitation capacitor which generates an initial excitation current that charges the excitation capacitor;
a step-up converter arranged between a battery that stores generated power and the excitation capacitor, and which boosts a voltage of the battery and provides the excitation capacitor with the boosted voltage;
a speed detector that detects a rotation speed of a rotor; and
an excitation controller that operates the step-up converter in response to the detected rotor rotation speed being equal to or less than a predetermined speed.
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Accused Products
Abstract
A Switched Reluctance (SR) generator having improved efficiency at low and high speed is disclosed. The SR generator includes a step-up converter for controlling an excitation voltage of an excitation capacitor capable of providing a phase winding with an excitation current. Therefore, the SR generator can control the excitation current, and can provide a phase winding with a sufficient excitation current, thereby improving efficiency. The step-up converter is arranged between a battery capable of storing generated power and the excitation capacitor, boosts a voltage of the battery, and provides the excitation capacitor with the boosted voltage. Therefore, the SR generator does not include an additional power-supply unit for a boosting function, resulting in simplification of an overall structure and reduction of a production cost.
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Citations
10 Claims
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1. A Switched Reluctance (SR) generator comprising:
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an excitation capacitor which provides a phase winding with an excitation current; a current source connected to the excitation capacitor which generates an initial excitation current that charges the excitation capacitor; a step-up converter arranged between a battery that stores generated power and the excitation capacitor, and which boosts a voltage of the battery and provides the excitation capacitor with the boosted voltage; a speed detector that detects a rotation speed of a rotor; and an excitation controller that operates the step-up converter in response to the detected rotor rotation speed being equal to or less than a predetermined speed. - View Dependent Claims (2, 3)
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4. A Switched Reluctance (SR) generator comprising:
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an excitation capacitor which transmits an excitation current to a phase winding comprising a plurality of unit windings, connections of which are switched by one or more winding switches; a current source connected to the excitation capacitor which generates an initial excitation current that charges the excitation capacitor; a step-up converter arranged between a battery that stores generated power and the excitation capacitor, and which boosts a voltage of the battery and provides the excitation capacitor with the boosted voltage; a speed detector that detects a rotation speed of a rotor; and an excitation controller that operates the step-up converter in response to the detected rotor rotation speed being equal to or less than a predetermined speed. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification