Voltage regulator with controlled current
阅读：990发布：2023-07-18
专利汇可以提供Voltage regulator with controlled current专利检索，专利查询，专利分析的服务。并且A voltage regulating system for AC generators including a three phase current boost and a voltage responsive control circuit having a full converter type output stage. The three phase boost circuit and the full converter output stage are connected in series with the field winding of the exciter. At high power output levels, the inverting capability of the full converter power stage is used to oppose the voltage generated by the current boost to prevent loss of control over the generator, by diverting excessive boost currents through a load means connected to the current boost circuit.，下面是Voltage regulator with controlled current专利的具体信息内容。
1. A voltage regulating system for a generator having field energizing means, comprising: a. voltage responsive means connected to the output of the generator, for producing field energizing control signals in response thereto to maintain the output voltage of the generator at a predetermined level, said voltage reference means including a full converter output circuit; b. current responsive means associated with the output of the generator for producing boost signals in response to the current output of the generator; c. means connecting said full converter output circuit and said current sensing means in series circuit with said field energizing means of said generator; d. load means connected to said current sensing means; and e. said voltage responsive means operable in response to excessive boost signals to adjust said control signals to divert the excessive boost signals through said load means, thereby preventing loss of regulator control.
2. Apparatus according to claim 1 wherein said current sensing means comprises a current boost transformer and a rectifier bridge circuit connected thereto.
3. Apparatus according to claim 2 wherein said load means comprises a resistor connected across said diode bridge.
4. Apparatus according to claim 2 wherein said load means comprises a reactor connected across the secondary of said boost transformer.
5. Apparatus according to claim 2 wherein said current boost transformer comprises a three phase transFormer having secondary windings associated with each output phase of the generator, and wherein said rectifier bridge circuir comprises a three phase diode bridge.
6. Apparatus according to claim 5 wherein said voltage responsive means comprises a single phase voltage regulating circuit.
7. An improved voltage regulating system for a three phase alternating current generator having an exciter, comprising: a. a voltage regulating circuit connected to sense the output voltage of the generator, for producing exciter control signals in response thereto, said voltage regulating circuit including a full converter power circuit which includes a transformer having a primary winding connected across two of the output phases of the generator and a center tapped secondary winding, and first and second controlled rectifiers having anodes connected respectively to the first and second ends of said secondary winding; b. a current boost circuit associated with the output of said generator for producing boost signals in response to the output current thereof, said current boost circuit comprising a three phase current boost transformer associated with the output of said generator and a rectifier bridge connected to said current boost transformer, said rectifier bridge having a common anode terminal and a common cathode terminal; c. first connecting means for connecting the cathodes of said first and second controlled rectifiers to the common anode terminal of said bridge; d. second connecting means for connecting the common cathode terminal of said bridge to the field winding of said exciter; e. third connecting means for connecting said center tap to said field winding of said exciter; and f. a load resistor connected between said common cathod and said common anode terminals of said bridge.
8. An improved voltage regulating system for a three phase alternating current generator having an exciter, comprising; a. a voltage regulating circuit connected to sense the output voltage of the generator, for producing exciter control signals in response thereto, said voltage regulating circuit including a full converter power circuit which includes a transformer having a primary winding connected across two of the output phases of the generator and a center tapped secondary winding, and first and second controlled rectifiers having anodes connected respectively to the first and second ends of said secondary winding; b. a current boost circuit associated with the output of said generator for producing boost signals in response to the output current thereof, said current boost circuit including a current boost transformer having three secondary windings associated with the three phase outputs of the generator and a rectifier bridge connected to the secondary windings of the current boost transformer, said rectifier bridge having a common anode terminal and a common cathode terminal; c. first connecting means for connecting the cathodes of said first and second controlled rectifiers to the common anode terminal of said bridge; d. second connecting means for connecting the common cathode terminal of said bridge to the field winding of said exciter; e. third connecting means for connecting said center tap to said field winding of said exciter; and f. reactor means connected in parallel with the secondary windings of said current boost transformer for receiving excessive boost signals diverted therethrough by said voltage regulating circuit.
9. Apparatus according to claim 8 wherein said reactor means comprises three reactors, each connected in parallel with a different one of said current boost transformer secondary windings.
10. Apparatus according to claim 9 wherein said reactors comprise linear reactors having gapped magnetic circuits.
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