VOLTAGE STABILIZED GENERATOR BASED ON ASYNCHRONOUS MACHINE WITH SHORT-CLOSED ROTOR WINDING Russian patent published in 2019 - IPC H02J3/12 

Abstract RU 2709101 C1

FIELD: machine building; electrical engineering.

SUBSTANCE: voltage stabilized generator based on asynchronous machine (AM) with short-closed rotor winding relates to electrical engineering, generator contains basic unit of non-controlled self-excitation capacitors (2) connected to output terminals (1.A, 1.B, 1.C) of armature winding (AW), unit of controlled self-excitation capacitors (UCSEC) (3), which includes rectifying bridge (3.1), with transistor (3.2) in its direct current circuit, driver (3.3) at input of transistor (3.2), as well as group of linear capacitors (3.4) with noncontrolled capacitance connected between input terminals of rectifier bridge (3.1) and output terminals AW (1.A, 1.B, 1.C), control unit (CU) 4, which is made in form of in-series connected negative feedback loop (NFL) (5) and pulse width modulator (PWM) (6). NFL (5) is made in the form of voltage sensor (VS) (5.1) of alternating current AM UAM, made, for example, in the form of a rectifier with a voltage level reducing device (for example, resistive divider), setpoint voltage adjuster U0 (5.2), unit for comparison (subtraction) of voltages UAM and U0 (5.3), control "error" regulator ΔU=(UAM-U0) (5.4) and adder of two signals U0 and ΔU (5.5), which is output of NFL (5). PWM (6) comprises sawtooth voltage generator (SVG) (6.1) and comparator (6.2), one input of which is connected to output SVG (6.1), and the second one – to output NFL (5). Power supply CU is provided with internal power supply unit (7), its input being connected to AW AM outputs. Load 8 is connected to same outputs (1.A, 1.B, 1.C) AW AM.

EFFECT: generator can be used in construction of computer-electronic generating systems of permanent (CEGS-1) or variable (CEGS-2) current at variable frequency of rotation of drive shaft.

1 cl, 1 dwg

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RU 2 709 101 C1

Authors

Mytsyk Gennadij Sergeevich

Me Min Tant

Dates

2019-12-16Published

2019-06-18Filed