CN110048660B - Switch reluctance motor comprehensive power converter system - Google Patents
Switch reluctance motor comprehensive power converter system Download PDFInfo
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- CN110048660B CN110048660B CN201910301519.6A CN201910301519A CN110048660B CN 110048660 B CN110048660 B CN 110048660B CN 201910301519 A CN201910301519 A CN 201910301519A CN 110048660 B CN110048660 B CN 110048660B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
- H02P25/092—Converters specially adapted for controlling reluctance motors
Abstract
A switched reluctance motor comprehensive power converter system is composed of a storage battery, ten power tubes, two capacitors and four-phase windings, and can realize seven working control modes according to the requirements of a load side, an excitation side and the like, and comprises the following steps: a forward direct current output switched reluctance generator mode, a reverse direct current output switched reluctance generator mode, a high voltage forward direct current output switched reluctance generator mode, an alternating current output switched reluctance generator mode, a switched reluctance motor first mode, a switched reluctance motor second mode and a storage battery charging mode; the system has strong adaptability and high cost performance, and has better application prospect for various switched reluctance motor systems, especially for the switched reluctance motor systems in the field of high-speed low-power wind power.
Description
Technical Field
The invention relates to the field of switched reluctance motor systems, in particular to a simple power converter system capable of adapting to seven different working modes and a control mode thereof.
Background
The switched reluctance motor has simple and firm structure, convenient heat dissipation without windings on the rotor, high reliability and strong fault tolerance, and has wide application prospect.
The power converter of the switched reluctance motor is an indispensable link, and the power converter cannot do any work without the power converter.
In some applications, such as wind power, when a switched reluctance motor is selected as a generator, it is desirable to operate the motor in a short time, such as during start-up, so that it is desirable that the power converter of the switched reluctance generator can perform the conversion operation of the operating condition of the motor, avoiding the need to separately design another power converter.
As a switched reluctance generator, a power supply is needed for supplying power and excitation, and the switched reluctance generator generally has a separate excitation mode and a self-excitation mode, wherein the self-excitation mode affects low electric energy quality, the separate excitation mode has no defects of the self-excitation mode but needs high labor cost, and a storage battery is frequently replaced.
The switched reluctance generator generally corresponds to a direct current source, but in some cases, if alternating current energy is needed, an inverter system is required, and even direct current has different requirements on the voltage of a load end.
Therefore, if a power converter system of a switched reluctance motor system can realize various functions such as high-low voltage direct current, alternating current, stable self-excitation, motor power supply and the like to the maximum extent according to different requirements, the power converter system has higher cost performance and more flexible adaptability.
Disclosure of Invention
Based on the above background technology, the invention provides an intelligent switched reluctance motor power converter system which can respond to seven working states and has the functions of generating power and electrically driving, and is suitable for various switched reluctance motor systems, in particular to the application in the field of medium and small high-speed wind power.
The technical scheme of the invention is as follows:
a switched reluctance motor comprehensive power converter system is composed of a storage battery, a first capacitor, a second capacitor, a first power tube, a second power tube, a third power tube, a fourth power tube, a fifth power tube, a sixth power tube, a seventh power tube, an eighth power tube, a ninth power tube, a tenth power tube, a first phase winding, a second phase winding, a third phase winding and a fourth phase winding The negative electrode of the first capacitor, the negative electrode of the ninth power tube and one end of the second capacitor, the anode of the fourth power tube is connected with the negative electrode of the tenth power tube and the other end of the second capacitor, the other end of the first phase winding is connected with the anode of the fifth power tube, the other end of the second phase winding is connected with the anode of the sixth power tube, the other end of the third phase winding is connected with the anode of the seventh power tube, the other end of the fourth phase winding is connected with the anode of the eighth power tube, and the cathode of the fifth power tube is connected with the negative electrode of the sixth power tube, the negative electrode of the seventh power tube, the negative electrode of the eighth power tube, the anode of the ninth power tube and.
The technical characteristics of the work control mode of the switch reluctance motor comprehensive power converter system are that the work control mode comprises seven work control modes:
mode one, forward direct current output switched reluctance generator mode: according to the position information of a rotor of the switched reluctance motor, when a first phase winding needs to be put into operation, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor; according to the position information of the rotor of the switched reluctance motor, when a second phase winding needs to be put into operation, a first power tube, a sixth power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the second phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the second phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched; according to the position information of the rotor of the switched reluctance motor, when a third phase winding needs to be put into operation, a first power tube, a seventh power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched; according to the position information of the rotor of the switched reluctance motor, when a fourth phase winding needs to be put into operation, a first power tube, an eighth power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the fourth phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor;
mode two, reverse direct current output switched reluctance generator mode: when a first phase winding needs to be put into operation according to the position information of a rotor of a switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube is disconnected at the moment, the fourth power tube is closed, and all power tubes closed before are disconnected after the power generation stage is finished according to the position information of the rotor of the switched reluctance; when a second phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a sixth power tube and a ninth power tube, firstly entering an excitation stage, disconnecting the first power tube when the excitation stage is finished, closing a third power tube if the current of the second phase winding is lower than the excitation lower limit value, entering a follow current stage, entering a power generation stage after the follow current stage is finished or the second phase winding is not lower than the excitation lower limit value when the excitation stage is finished, disconnecting the third power tube, closing the fourth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; according to the position information of the rotor of the switched reluctance motor, when a third phase winding needs to be put into operation, a first power tube, a seventh power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube is disconnected at the moment, the fourth power tube is closed, and all power tubes closed before are disconnected after the power generation stage is finished according to the position information of the rotor; when a fourth phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, an eighth power tube and a ninth power tube, firstly entering an excitation stage, disconnecting the first power tube when the excitation stage is finished, closing the third power tube if the current of the fourth phase winding is lower than the excitation lower limit value, entering a follow current stage, entering a power generation stage after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value when the excitation stage is finished, disconnecting the third power tube, closing the fourth power tube, and disconnecting all power tubes closed before the power generation stage is finished according to the position information of the rotor of the switched reluctance motor;
mode three, high-voltage forward direct current output switched reluctance generator mode: when a first phase winding needs to be put into operation according to the position information of a rotor of a switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is started firstly, when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the first power tube is disconnected, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube and the ninth power tube are disconnected at the moment, the first power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor; when a second phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a sixth power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the second phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the second phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; when a third phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a seventh power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; when a fourth phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, an eighth power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the fourth phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor;
mode four, alternating current output switched reluctance generator mode: the mode is a mode one and mode two alternative working control mode, namely when the first phase winding works according to the mode one, the second phase winding works according to the mode two, the third phase winding works according to the mode one, the fourth phase winding works according to the mode two, and the operation is alternately circulated;
mode v, a switched reluctance motor first mode: the method is powered by a storage battery, when a first phase winding works according to the position information of a rotor of the switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are firstly closed, when the work is finished, the first power tube and the ninth power tube are disconnected, a third power tube and a tenth power tube are closed to provide follow current, and all power tubes closed before the work is finished are disconnected according to the position information of the rotor of the switched reluctance motor; when a second phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing the first power tube, the sixth power tube and the ninth power tube, disconnecting the first power tube and the ninth power tube when the work is finished, closing the third power tube and the tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing; when a third phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing the first power tube, the seventh power tube and the ninth power tube, disconnecting the first power tube and the ninth power tube when the work is finished, closing the third power tube and the tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing; when a fourth phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a first power tube, an eighth power tube and a ninth power tube, disconnecting the first power tube and the ninth power tube when the working is finished, closing a third power tube and a tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing;
mode six, the second mode of the switched reluctance motor: according to the method, a direct current power supply at the side of a second capacitor supplies power, when a first phase winding works according to the position information of a rotor of a switched reluctance motor, a fourth power tube, a fifth power tube and a ninth power tube are firstly closed, when the work is finished, the fourth power tube and the ninth power tube are disconnected, a third power tube and a tenth power tube are closed to provide follow current feedback energy, and all power tubes closed before the work is disconnected after the position information of the rotor of the switched reluctance motor needs to be finished; when a second phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, a sixth power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished; when a third phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, a seventh power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished; when a fourth phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, an eighth power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished;
mode seven, battery charging mode: when the electric quantity of the storage battery is lower than the lower limit value, the side of the second capacitor is direct current electric energy, and each phase winding of the switched reluctance motor does not work, the second power tube and the fourth power tube are closed, and the storage battery is charged.
The invention has the following main technical effects:
the power converter has simple structure, especially, the power converter can realize seven different working modes of forward direct current output, reverse direct current output, high-voltage direct current output, alternating current output, self-charging mode, double electric working conditions and the like, and the seven different working modes are all completed by the same power converter, so the power converter has simple structure, simple and convenient control and strong adaptability.
Drawings
Fig. 1 is a circuit diagram of an integrated power converter system of a switched reluctance motor according to the present invention.
Detailed Description
The switched reluctance motor integrated power converter system of the present embodiment is, as shown in fig. 1, composed of a storage battery S, a first capacitor C1, a second capacitor C2, a first power tube K1, a second power tube K2, a third power tube K3, a fourth power tube K4, a fifth power tube K5, a sixth power tube K6, a seventh power tube K7, an eighth power tube K8, a ninth power tube K9, a tenth power tube K10, a first phase winding M, a second phase winding N, a third phase winding P, and a fourth phase winding Q, wherein the positive electrode of the storage battery S is connected to the positive electrode of the first capacitor C1, the positive electrode of the first power tube K1, the negative electrode of the second power tube K2, the negative electrode of the first power tube K1 is connected to the second power tube K2, the negative electrode of the third power tube K3, the negative electrode of the fourth power tube K4, the negative electrode of the first phase winding M, the first end N, the third end winding N, and the fourth phase winding Q, the anode of a third power tube K3 is connected with the cathode of a storage battery S, the cathode of a first capacitor C1, the cathode of a ninth power tube K9 and one end of a second capacitor C2, the anode of a fourth power tube K4 is connected with the cathode of a tenth power tube K10 and the other end of a second capacitor C2, the other end of a first phase winding M is connected with the anode of a fifth power tube K5, the other end of a second phase winding N is connected with the anode of a sixth power tube K6, the other end of a third phase winding P is connected with the anode of a seventh power tube K7, the other end of a fourth phase winding Q is connected with the anode of an eighth power tube K8, and the cathode of a fifth power tube K5 is connected with the cathode of a sixth power tube K6, the cathode of a seventh power tube K7, the cathode of an eighth power tube K8, the anode of a ninth; each power tube is a full-control power device.
When the switched reluctance motor of the present embodiment operates as a generator, the side of the second capacitor C2 serves as its power output terminal, and is connected to the grid or the load, and at this time, the excitation power source is from the battery S; when operating as a motor, its power is input from the accumulator S or its power output.
The specific operation control modes of the switched reluctance motor integrated power converter system of the embodiment include seven operation control modes, and one of the operation control modes is specifically selected according to the actual needs of the system.
Mode one, forward direct current output switched reluctance generator mode: when the first phase winding M needs to be put into operation according to the position information of the rotor of the switched reluctance motor, the first power tube K1, the fifth power tube K5 and the ninth power tube K9 are closed to form a loop: S-K1-M-K5-K9, entering an excitation stage, disconnecting the first power tube K1 when the excitation stage is finished according to the position information of the rotor, closing the third power tube K3 if the current of the first phase winding M is detected to be lower than the excitation lower limit value at the moment, entering a non-pressure follow current stage with a loop of K3-M-K5-K9, wherein the loop current, namely the winding current, rises rapidly, entering a power generation stage after the follow current stage is finished or when the first phase winding M is not lower than the excitation lower limit value at the end of the excitation stage, disconnecting the ninth power tube K9, closing the third power tube K3 and the tenth power tube K10, and the power generation circuit is: K3-M-K5-K10-C2, according to the position information of the rotor of the switched reluctance motor, all power tubes closed before the power generation stage are disconnected; when the second phase winding N, the third phase winding P and the fourth phase winding Q are put into operation according to the position information of the rotor of the switched reluctance motor, the operation control mode is completely the same as that of the first phase winding M, and the corresponding device correspondence is respectively as follows: the sixth power tube K6, the seventh power tube K7, and the eighth power tube K8 correspond to the fifth power tube K5, and the rest are the same.
Mode two, reverse direct current output switched reluctance generator mode: when a first phase winding M needs to be put into operation according to the position information of the rotor of the switched reluctance motor, a first power tube K1, a fifth power tube K5 and a ninth power tube K9 are closed, an excitation stage is firstly started, and a loop is as follows: S-K1-M-K5-K9, when the excitation phase is finished, the first power tube K1 is disconnected, if the current of the first phase winding M is lower than the excitation lower limit value, the third power tube K3 is closed, a non-pressure follow current phase with a loop of K3-M-K5-K9 is entered, the current of the loop, namely the winding current, rises rapidly, after the follow current phase is finished or when the first phase winding M is not lower than the excitation lower limit value when the excitation phase is finished, the power generation phase is entered, the third power tube K3 is disconnected at this time, the fourth power tube K4 is closed, and the power generation loop is: K4-M-K5-K9-C2, therefore, the reverse power generation output is realized by the method relative to the forward power generation output of the first mode, and all power tubes which are closed before are disconnected after the power generation phase is finished according to the position information of the rotor of the switched reluctance motor; when the second phase winding N, the third phase winding P and the fourth phase winding Q are put into operation according to the position information of the rotor of the switched reluctance motor, the operation control mode is completely the same as that of the first phase winding M, and the corresponding device correspondence is respectively as follows: the sixth power tube K6, the seventh power tube K7, and the eighth power tube K8 correspond to the fifth power tube K5, and the rest are the same.
Mode three, high-voltage forward direct current output switched reluctance generator mode: when the first phase winding M needs to be put into operation according to the position information of the rotor of the switched reluctance motor, the first power tube K1, the fifth power tube K5 and the ninth power tube K9 are closed to form a loop: S-K1-M-K5-K9, entering an excitation stage, when the excitation stage is finished, if the current of a first phase winding M is lower than the excitation lower limit value, disconnecting a first power tube K1, closing a third power tube K3, entering a non-pressure follow current stage with a loop of K3-M-K5-K9, wherein the current of the loop, namely the winding current, rises rapidly, and after the follow current stage is finished or when the current of the first phase winding M is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube K3 and a ninth power tube K9, closing the first power tube K1 and a tenth power tube K10, and forming a power generation loop: S-K1-M-K5-K10-C2, which is equivalent to that the first phase winding M and the storage battery S are connected in series and then output outwards together, namely the voltage at the end of the second capacitor C2 is increased by the voltage of the storage battery S relative to the first mode, so that higher voltage is output, and all power tubes closed before are disconnected after the power generation phase is finished according to the position information of the rotor of the switched reluctance motor; when the second phase winding N, the third phase winding P and the fourth phase winding Q are put into operation according to the position information of the rotor of the switched reluctance motor, the operation control mode is completely the same as that of the first phase winding M, and the corresponding device correspondence is respectively as follows: the sixth power tube K6, the seventh power tube K7, and the eighth power tube K8 correspond to the fifth power tube K5, and the rest are the same.
Mode four, alternating current output switched reluctance generator mode: the mode is a mode one and mode two alternative working control mode, namely when the first phase winding M works according to the mode one, the second phase winding N works according to the mode two, the third phase winding P works according to the mode one, and the fourth phase winding Q works according to the mode two, and the alternating circulation is carried out, so that alternating current with the alternating current frequency equal to the two-mode alternative frequency is obtained on the output side, namely the side of the second capacitor C2;
mode v, a switched reluctance motor first mode: in the method, a storage battery S supplies power, and when a first phase winding M works according to the position information of a rotor of a switched reluctance motor, a first power tube K1, a fifth power tube K5 and a ninth power tube K9 are firstly closed to form a loop: S-K1-M-K5-K9, when the work is finished, the first power tube K1 and the ninth power tube K9 are disconnected, the third power tube K3 and the tenth power tube K10 are closed to provide follow current, and all power tubes closed before are disconnected after the position information of the rotor of the switched reluctance motor is finished; when the second phase winding N, the third phase winding P and the fourth phase winding Q are put into operation according to the position information of the rotor of the switched reluctance motor, the operation control mode is completely the same as that of the first phase winding M, and the corresponding device correspondence is respectively as follows: the sixth power tube K6, the seventh power tube K7, and the eighth power tube K8 correspond to the fifth power tube K5, and the rest are the same.
Mode six, the second mode of the switched reluctance motor: in the method, a direct-current power supply at the side of a second capacitor C2 is used for supplying power, when a first phase winding M works according to the position information of a rotor of the switched reluctance motor, a fourth power tube K4, a fifth power tube K5 and a ninth power tube K9 are firstly closed, and the loop is as follows: K4-M-K5-K9, when the work is finished, the fourth power tube K4 and the ninth power tube K9 are disconnected, the third power tube K3 and the tenth power tube K10 are closed to provide a follow current loop K3-M-K5-K10 to feed energy, and all power tubes which are closed before are disconnected after the position information of the rotor of the switched reluctance motor is required to be finished; when the second phase winding N, the third phase winding P and the fourth phase winding Q are put into operation according to the position information of the rotor of the switched reluctance motor, the operation control mode is completely the same as that of the first phase winding M, and the corresponding device correspondence is respectively as follows: the sixth power tube K6, the seventh power tube K7, and the eighth power tube K8 correspond to the fifth power tube K5, and the rest are the same.
Mode seven, battery charging mode: when the electric quantity of the storage battery S is lower than the lower limit value, the side of the second capacitor C2 is direct-current electric energy, and the windings of the phases of the switched reluctance motor are not put into operation, the second power tube K2 and the fourth power tube K4 are closed to form a loop: C2-K4-K2-S, the storage battery S is charged, and in order to meet the charging voltage and current required by the storage battery S, the second power tube K2 or the fourth power tube K4 carries out a PWM control mode to meet the requirement.
In addition to the above power converter, the present embodiment must be supplemented with detection systems such as phase winding current detection, battery S current voltage electric quantity detection, second capacitor C2 terminal voltage current detection, and switched reluctance motor rotor position detection, and generates driving signals to each power tube through the controller, so as to finally complete the operation control of the whole switched reluctance motor power conversion system.
Claims (2)
1. A switched reluctance motor comprehensive power converter system is composed of a storage battery, a first capacitor, a second capacitor, a first power tube, a second power tube, a third power tube, a fourth power tube, a fifth power tube, a sixth power tube, a seventh power tube, an eighth power tube, a ninth power tube, a tenth power tube, a first phase winding, a second phase winding, a third phase winding and a fourth phase winding The negative electrode of the first capacitor, the negative electrode of the ninth power tube and one end of the second capacitor, the anode of the fourth power tube is connected with the negative electrode of the tenth power tube and the other end of the second capacitor, the other end of the first phase winding is connected with the anode of the fifth power tube, the other end of the second phase winding is connected with the anode of the sixth power tube, the other end of the third phase winding is connected with the anode of the seventh power tube, the other end of the fourth phase winding is connected with the anode of the eighth power tube, and the cathode of the fifth power tube is connected with the negative electrode of the sixth power tube, the negative electrode of the seventh power tube, the negative electrode of the eighth power tube, the anode of the ninth power tube and.
2. The control method of the switched reluctance motor integrated power converter system according to claim 1, comprises seven operation control methods:
mode one, forward direct current output switched reluctance generator mode: according to the position information of a rotor of the switched reluctance motor, when a first phase winding needs to be put into operation, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor; according to the position information of the rotor of the switched reluctance motor, when a second phase winding needs to be put into operation, a first power tube, a sixth power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the second phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the second phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched; according to the position information of the rotor of the switched reluctance motor, when a third phase winding needs to be put into operation, a first power tube, a seventh power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched; according to the position information of the rotor of the switched reluctance motor, when a fourth phase winding needs to be put into operation, a first power tube, an eighth power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the fourth phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value when the excitation stage is finished, a power generation stage is started, the ninth power tube is disconnected at the moment, the third power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor;
mode two, reverse direct current output switched reluctance generator mode: when a first phase winding needs to be put into operation according to the position information of a rotor of a switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is firstly started, the first power tube is disconnected when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube is disconnected at the moment, the fourth power tube is closed, and all power tubes closed before are disconnected after the power generation stage is finished according to the position information of the rotor of the switched reluctance; when a second phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a sixth power tube and a ninth power tube, firstly entering an excitation stage, disconnecting the first power tube when the excitation stage is finished, closing a third power tube if the current of the second phase winding is lower than the excitation lower limit value, entering a follow current stage, entering a power generation stage after the follow current stage is finished or the second phase winding is not lower than the excitation lower limit value when the excitation stage is finished, disconnecting the third power tube, closing the fourth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; according to the position information of the rotor of the switched reluctance motor, when a third phase winding needs to be put into operation, a first power tube, a seventh power tube and a ninth power tube are closed, an excitation stage is started firstly, the first power tube is disconnected when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube is disconnected at the moment, the fourth power tube is closed, and all power tubes closed before are disconnected after the power generation stage is finished according to the position information of the rotor; when a fourth phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, an eighth power tube and a ninth power tube, firstly entering an excitation stage, disconnecting the first power tube when the excitation stage is finished, closing the third power tube if the current of the fourth phase winding is lower than the excitation lower limit value, entering a follow current stage, entering a power generation stage after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value when the excitation stage is finished, disconnecting the third power tube, closing the fourth power tube, and disconnecting all power tubes closed before the power generation stage is finished according to the position information of the rotor of the switched reluctance motor;
mode three, high-voltage forward direct current output switched reluctance generator mode: when a first phase winding needs to be put into operation according to the position information of a rotor of a switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are closed, an excitation stage is started firstly, when the excitation stage is finished, if the current of the first phase winding is lower than the excitation lower limit value, the first power tube is disconnected, the third power tube is closed, a follow current stage is started, after the follow current stage is finished or when the current of the first phase winding is not lower than the excitation lower limit value when the excitation stage is finished, the power generation stage is started, the third power tube and the ninth power tube are disconnected at the moment, the first power tube and the tenth power tube are closed, and all power tubes closed before the power generation stage is disconnected according to the position information of the rotor of the switched reluctance motor; when a second phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a sixth power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the second phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the second phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; when a third phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, a seventh power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the third phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the third phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor; when a fourth phase winding needs to be put into operation according to the position information of a rotor of the switched reluctance motor, closing a first power tube, an eighth power tube and a ninth power tube, firstly entering an excitation stage, when the excitation stage is finished, if the current of the fourth phase winding is lower than the excitation lower limit value, disconnecting the first power tube, closing the third power tube, entering a follow current stage, after the follow current stage is finished or when the current of the fourth phase winding is not lower than the excitation lower limit value, entering a power generation stage, disconnecting the third power tube and the ninth power tube, closing the first power tube and the tenth power tube, and disconnecting all power tubes closed before the power generation stage according to the position information of the rotor of the switched reluctance motor;
mode four, alternating current output switched reluctance generator mode: the mode is a mode one and mode two alternative working control mode, namely when the first phase winding works according to the mode one, the second phase winding works according to the mode two, the third phase winding works according to the mode one, the fourth phase winding works according to the mode two, and the operation is alternately circulated;
mode v, a switched reluctance motor first mode: the method is powered by a storage battery, when a first phase winding works according to the position information of a rotor of the switched reluctance motor, a first power tube, a fifth power tube and a ninth power tube are firstly closed, when the work is finished, the first power tube and the ninth power tube are disconnected, a third power tube and a tenth power tube are closed to provide follow current, and all power tubes closed before the work is finished are disconnected according to the position information of the rotor of the switched reluctance motor; when a second phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing the first power tube, the sixth power tube and the ninth power tube, disconnecting the first power tube and the ninth power tube when the work is finished, closing the third power tube and the tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing; when a third phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing the first power tube, the seventh power tube and the ninth power tube, disconnecting the first power tube and the ninth power tube when the work is finished, closing the third power tube and the tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing; when a fourth phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a first power tube, an eighth power tube and a ninth power tube, disconnecting the first power tube and the ninth power tube when the working is finished, closing a third power tube and a tenth power tube to provide follow current, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after finishing;
mode six, the second mode of the switched reluctance motor: according to the method, a direct current power supply at the side of a second capacitor supplies power, when a first phase winding works according to the position information of a rotor of a switched reluctance motor, a fourth power tube, a fifth power tube and a ninth power tube are firstly closed, when the work is finished, the fourth power tube and the ninth power tube are disconnected, a third power tube and a tenth power tube are closed to provide follow current feedback energy, and all power tubes closed before the work is disconnected after the position information of the rotor of the switched reluctance motor needs to be finished; when a second phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, a sixth power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished; when a third phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, a seventh power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished; when a fourth phase winding works according to the position information of the rotor of the switched reluctance motor, firstly closing a fourth power tube, an eighth power tube and a ninth power tube, disconnecting the fourth power tube and the ninth power tube when the work is finished, closing a third power tube and a tenth power tube to provide follow current feedback energy, and disconnecting all power tubes closed before according to the position information of the rotor of the switched reluctance motor after the work is finished;
mode seven, battery charging mode: when the electric quantity of the storage battery is lower than the lower limit value, the side of the second capacitor is direct current electric energy, and each phase winding of the switched reluctance motor does not work, the second power tube and the fourth power tube are closed, and the storage battery is charged.
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Application publication date: 20190723 Assignee: Shaoxing Jienan Technology Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000128 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230311 Application publication date: 20190723 Assignee: Xinchang neodymium Ru Agricultural Technology Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000134 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230311 Application publication date: 20190723 Assignee: Xinchang Huandi Technology Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000130 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230311 Application publication date: 20190723 Assignee: Xinchang County niukan Agricultural Development Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000132 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230311 |
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Application publication date: 20190723 Assignee: Xinchang County facheng Agricultural Development Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000203 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230329 Application publication date: 20190723 Assignee: Xinchang Daochong Pet Products Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000204 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230329 Application publication date: 20190723 Assignee: XINCHANG COUNTY XIAOBUDIAN AGRICULTURAL DEVELOPMENT Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000201 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230329 Application publication date: 20190723 Assignee: Shaoxing Yuanyi Technology Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2023330000202 Denomination of invention: A Switched Reluctance Motor Integrated Power Converter System Granted publication date: 20201204 License type: Common License Record date: 20230329 |
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Effective date of registration: 20231010 Address after: Room 407-10, floor 4, building 2, Haichuang science and technology center, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province, 311100 Patentee after: Zhejiang Zhiduo Network Technology Co.,Ltd. Address before: 310018, No. 258, source street, Xiasha Higher Education Park, Hangzhou, Zhejiang Patentee before: China Jiliang University |