CN201407103Y - Soft-starting gas turbine system with redundancy design - Google Patents
Soft-starting gas turbine system with redundancy design Download PDFInfo
- Publication number
- CN201407103Y CN201407103Y CN 200920151481 CN200920151481U CN201407103Y CN 201407103 Y CN201407103 Y CN 201407103Y CN 200920151481 CN200920151481 CN 200920151481 CN 200920151481 U CN200920151481 U CN 200920151481U CN 201407103 Y CN201407103 Y CN 201407103Y
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- gas turbine
- current motor
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- Control Of Direct Current Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The utility model relates to a soft-starting gas turbine system with the redundancy design. A controller taking a CPU (central processing unit) as a core is connected with signal inputting terminals of three same driving boards through a pulse-width modulator, positive and negative electrodes of the drive boards are connected with the positive electrode and the negative electrode of a positive-and-negative 15v bipolar power supply, signal outputting terminals of the drive boards are respectively connected with gate poles of three bipolar insulated-gate field-effect transistors, leakage poles of the three bipolar insulated-gate field-effect transistors are collected and connected to a positive terminal of a DC (direct current) motor, source electrodes are collected and connected to a 48v storage battery through a fuse, a cathode of a storage battery is connected with a negative terminal and then earthed, and the positive terminal of the DC motor is reversely connected with a diode. Thesoft starting system has the characteristics of little mechanical impact to a rotor system, flexible control, low cost, light weight, small volume, low energy consumption, high reliability, etc.
Description
Technical field
The utility model relates to a kind of soft start system, especially a kind of gas turbine soft start system that contains Redundancy Design.
Background technique
The starting system of conventional gas turbine is made up of contactor, current-limiting resistance, the time relay, relay etc.The starting sequential generally is the level Four current limliting start mode that boosts: 24VDC current limit starting, short circuit current-limiting resistance, 48VDC current limit starting, short circuit current-limiting resistance once more, this start mode impacts bigger to the gas turbine rotor system mechanics, and the cost height, weight is big, volume is big, energy consumption is high, do not possess the control flexibility.
Summary of the invention
The purpose of this utility model provides a kind of little to the starter armature system shock, and cost is low, and weight is little, and volume is little, the low starting system that also can possess flexible control of energy consumption.The technical solution of the utility model is: be the control core device is connected to three identical driving plates by pulse width modulator PWM signal input part with CPU, both positive and negative polarity with bipolar power supply ± 15V the both positive and negative polarity correspondence of described driving plate links to each other, signal output part is connected respectively to the gate pole of three insulated gate bipolar field effect transistors, the drain electrode tandem of described three insulated gate bipolar field effect transistors is to the positive terminal of direct current motor, source electrode is by the positive pole of fastp-acting fuse tandem to the 48V storage battery, the negative pole of storage battery links to each other with the negative terminal of direct current motor afterwards and ground connection, and described direct current motor positive terminal is a diode of reversal connection (D) over the ground.
The utility model adopts the dutycycle of cpu controller by pulse width modulation controlled software change insulated gate bipolar field effect transistor IGBT control signal, make the voltage that is added on the direct current motor rise to 48V according to certain rule gradually from 0V within a certain period of time, direct current motor drives gas turbine rotor system raising speed gradually, thereby realizes the gas turbine soft start.The driving branch road of being made up of three similar elements (driving plate, insulated gate bipolar field effect transistor IGBT, fastp-acting fuse) has the ability of bearing direct current motor 50% above rated current respectively, in case arbitrary branch road breaks down, all the other two branch roads still can be finished the gas turbine soft start function, therefore have certain redundancy.Diode is used to absorb counterelectromotive force, avoids insulated gate bipolar field effect transistor IGBT overvoltage is impacted.This start mode not only impacts little to the gas turbine rotor system mechanics, and cost is low, in light weight, volume is little, energy consumption is low, control is flexible.
Description of drawings
Fig. 1 is a schematic representation of the present utility model.
Embodiment
As shown in Figure 1, with CPU is that the control core device is connected to three identical driving plate DB1 by pulse width modulator PWM, DB2, the signal input part of DB3, described driving plate DB1, DB2, both positive and negative polarity with bipolar power supply ± 15V the both positive and negative polarity correspondence of DB3 links to each other, signal output part is connected respectively to three insulated gate bipolar field effect transistor T1, T2, the gate pole of T3, described three insulated gate bipolar field effect transistor T1, T2, the drain electrode tandem of T3 is to the positive terminal of direct current motor, source electrode is by fastp-acting fuse FU1, FU2, the FU3 tandem is to the positive pole of 48V storage battery, and the negative pole of storage battery links to each other with the negative terminal of direct current motor afterwards and ground connection.Described direct current motor positive terminal is diode D of reversal connection over the ground.
In use, make the dutycycle of insulated gate bipolar field effect transistor IGBT control signal within a certain period of time according to certain rule continuously change for the control core device by pulsewidth modulation (PWM) control software with CPU, cause that thus the voltage that is added on the direct current motor rises to 48V by identical rule gradually from 0V, for example:
The PWM dutycycle is 0 o'clock, and the voltage that is added on the direct current motor is 0V;
The PWM dutycycle is 1: 16 o'clock, and the equivalent voltage that is added on the direct current motor is 3V;
The PWM dutycycle is 1: 8 o'clock, and the equivalent voltage that is added on the direct current motor is 6V;
The PWM dutycycle is 1: 6 o'clock, and the equivalent voltage that is added on the direct current motor is 8V;
The PWM dutycycle is 1: 5 o'clock, and the equivalent voltage that is added on the direct current motor is 9.6V;
The PWM dutycycle is 1: 4 o'clock, and the equivalent voltage that is added on the direct current motor is 12V;
The PWM dutycycle is 1: 2 o'clock, and the equivalent voltage that is added on the direct current motor is 24V;
The PWM dutycycle is 2: 3 o'clock, and the equivalent voltage that is added on the direct current motor is 32V;
The PWM dutycycle is 3: 4 o'clock, and the equivalent voltage that is added on the direct current motor is 36V;
The PWM dutycycle is 5: 6 o'clock, and the equivalent voltage that is added on the direct current motor is 40V;
The PWM dutycycle is 1 o'clock, and the equivalent voltage that is added on the direct current motor is 48V.
DC motor rotation speed raises with voltage, drives gas turbine rotor system raising speed gradually, thereby realizes the gas turbine soft start.The driving branch road of being made up of three similar elements (driving plate, insulated gate bipolar field effect transistor IGBT, fastp-acting fuse) has the ability of bearing direct current motor 50% above rated current respectively, in case arbitrary branch road breaks down, all the other two branch roads still can be finished the gas turbine soft start function, therefore have certain redundancy.
Claims (2)
1. gas turbine soft start system that contains Redundancy Design, it is characterized in that, be connected to three identical driving plate (DB1s for the control core device by pulse width modulator (PWM) with CPU, DB2, DB3) signal input part, described driving plate (DB1, DB2, both positive and negative polarity with bipolar power supply ± 15V both positive and negative polarity correspondence DB3) links to each other, signal output part is connected respectively to three insulated gate bipolar field effect transistor (T1, T2, T3) gate pole, described three insulated gate bipolar field effect transistor (T1, T2, T3) drain electrode tandem is to the positive terminal of direct current motor, source electrode is by fastp-acting fuse (FU1, FU2, FU3) tandem is to the positive pole of 48V storage battery, and the negative pole of storage battery links to each other with the negative terminal of direct current motor afterwards and ground connection.
2. the gas turbine soft start system that contains Redundancy Design as claimed in claim 1 is characterized in that described direct current motor positive terminal is a diode of reversal connection (D) over the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920151481 CN201407103Y (en) | 2009-04-24 | 2009-04-24 | Soft-starting gas turbine system with redundancy design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920151481 CN201407103Y (en) | 2009-04-24 | 2009-04-24 | Soft-starting gas turbine system with redundancy design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407103Y true CN201407103Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920151481 Expired - Fee Related CN201407103Y (en) | 2009-04-24 | 2009-04-24 | Soft-starting gas turbine system with redundancy design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407103Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207531A (en) * | 2015-09-11 | 2015-12-30 | 厦门唯科健康科技有限公司 | Soft start method for motor |
| CN107302326A (en) * | 2016-04-15 | 2017-10-27 | 松下电器研究开发(苏州)有限公司 | Motor-driven system and method and the small power electric equipment for possessing the system |
-
2009
- 2009-04-24 CN CN 200920151481 patent/CN201407103Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207531A (en) * | 2015-09-11 | 2015-12-30 | 厦门唯科健康科技有限公司 | Soft start method for motor |
| CN105207531B (en) * | 2015-09-11 | 2018-01-02 | 厦门唯科健康科技有限公司 | A kind of motor soft start method |
| CN107302326A (en) * | 2016-04-15 | 2017-10-27 | 松下电器研究开发(苏州)有限公司 | Motor-driven system and method and the small power electric equipment for possessing the system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20170424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |