Download Control in power electronics and electrical drives : by Werner Leonhard; VDI/VDE-Gesellschaft Mess- und PDF

By Werner Leonhard; VDI/VDE-Gesellschaft Mess- und Regelungstechnik

Show description

Read or Download Control in power electronics and electrical drives : proceedings of the second IFAC symposium, Düsseldorf, Federal Republic of Germany, 3-5 October 1977 PDF

Similar electronics books

Digital Electronics. Principles, Devices and Applications [messy]

The basics and implementation of electronic electronics are necessary to realizing the layout and dealing of consumer/industrial electronics, communications, embedded platforms, desktops, safety and armed forces gear. units utilized in functions equivalent to those are always reducing in dimension and utilizing extra advanced expertise.

Extra info for Control in power electronics and electrical drives : proceedings of the second IFAC symposium, Düsseldorf, Federal Republic of Germany, 3-5 October 1977

Example text

Ud lTTP lTo p lToN lirN N = C (ff 1N is moving from C0 to C1 the sake of simplicity. ,. the condenser voltage uN with practically constant speed. The name of the mode 1'1 is "recharging". The diode voltage udN = ii - UN = = may vary in the domain shown in Fig. l 9d. U.

If u0 is varying, the diode voltage vector has to be in a sector including angle ± with respect to the real axis. If a diode in an other phase is conducting, the corre­ sponding phase axis takes over the role of the real axis, or using a rotation ± of the reference axes the situation remains the same. 2. Two elements are conducting. Let us suppose that the diodes b and c are conducting. Being now two voltages zero rather than two currents as in the previous case, and the corresponding signs of voltages and currents are reversed, this case may be regarded as a dual one.

CURRENT-SOURCE INVERTER (CS/) More application examples can be found in Lazar's paper (Ref. [5]) submitted to this conference. Here we will deal only with the most common operation modes of CS/ (Fig. 1 8). The same reference directions will be used for the voltages of the three-phase group as they are denoted for the currents. The shunt elements (the condensers and the stator winding of the motor) can't have zero sequence current. Therefore the zero sequence current component o( each semiconductor groups are i equal to � .

Download PDF sample

Rated 4.34 of 5 – based on 3 votes