Method for determining the pole-wheel position of electric machinery
First Claim
1. A method for ascertaining the pole wheel position in electrical machines (1), for example rotary current generators, with pulse inverters, a rotor excitation device (2), a stator (4) provided with inductances (4.1, 4.2, 4.3);
- (20, 21, 22), and a voltage source (7) between two branch terminals (5), characterized in that by means of switch elements (15, 16), a split into two branches (13, 14) can be produced, in which the respective branch voltage curves (17 and 18) are measured, the superposition of which permits the pole wheel position (11) to be definitely ascertained.
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Accused Products
Abstract
The invention relates to a method for ascertaining the pole wheel position in electrical machines (1), for example rotary current generators with pulse inverters. These electrical machines have a rotor excitation device (2) and a stator (4) provided with inductances (4.1, 4.2, 4.3 or 20, 21, 22). An alternating voltage source (7) is provided on the stator output side, between two stationary terminals (5). By means of first and second switch elements (15, 16), a split into two branches (13 and 14) can be produced, in which the respective branch voltage curves (17, 18) are measured, the superposition of which permits the rotor or pole wheel position (11) to be definitely ascertained.
4 Citations
9 Claims
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1. A method for ascertaining the pole wheel position in electrical machines (1), for example rotary current generators, with pulse inverters, a rotor excitation device (2), a stator (4) provided with inductances (4.1, 4.2, 4.3);
- (20, 21, 22), and a voltage source (7) between two branch terminals (5), characterized in that by means of switch elements (15, 16), a split into two branches (13, 14) can be produced, in which the respective branch voltage curves (17 and 18) are measured, the superposition of which permits the pole wheel position (11) to be definitely ascertained.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification