The dynamic curve of the power angle and the operating parameters of the generator are obvious. It also introduces the communication between the single-chip computer and the system machine and the method of drawing the power angle curve, the potential, 1 is the system reference bus voltage and current, the phase difference between the bus voltage and current, when the generator's potential and the receiving voltage factory When both are constant, the transmission power scale is a sinusoidal function of the angle, and the angle between the potential and the voltage is closely related to the stomach due to the magnitude of the power. Therefore, it is called the power angle and the power angle 1.2 power angle and the static stability of the system and the dynamic stability of the power angle. The stability of the stomach power system occupies a special power angle and its measurement 1.1 generator's power angle generator meets the transformer transmission line. If the transmission system 1 connected with the busbar of the large-capacity system is a hidden-pole generator, the active power output by the generator is the above-mentioned power, which is also called the power of the generator. Generator 4 axis equivalent reactance, 1 is the connection between the generator and the infinite system. The reactance is the unloaded position of the generator. The so-called static stability of the power system generally means that the power system is slightly disturbed during operation. After that, it independently returns to the rising part of its original rate characteristic curve. In this part, the power, quantity, and angle increments always have the same sign, so you can use the household 0 as the power system with static stability. The so-called transient stability of the power system generally means that after the power system is subjected to a large disturbance in normal operation, it can transition from the original operating state to the new operation. Hey, master, lecturer, mainly engaged in electricians. Electric strict technology. Long and control technology to find a school. Curry. State, and stable operation in the new operating state may also return to the original operating state of the power angle change characteristics after a number of large disturbances. If the power system is disturbed and the generator is rotating relative to the situation, if the power angle is oscillated, it can be stabilized at a certain value. Then the Yiming generator has resumed its synchronous operation. The system has a transient stability. The core power system is subject to fire disturbance and the 6 power angle is continuously increasing. Then the hair dryer is no longer stepping, and the system loses its transient stability. The available power system is disturbed by the power angle, and the characteristics of the change are used as the criterion for transient stability. 1.3 The calculation and measurement of the power angle for the hidden pole generator, its vector 2; thus the calculation formula of the 4 meritorious state is the salient pole generator, its vector is 2, and the formula for calculating the angle is the anti-generator The contact reactance between infinite systems is constant for the determined system and the soul is measured. When measuring with a computer, only the voltage and current and the power factor angle at the system bus are measured, and the power angle can be calculated from the equations 2 and 3. 2 system hardware design power angle microcomputer measurement system hard hardware structure box 3 hardware circuit working process as follows: voltage current through the voltage transformer and current transformer back into the analog low-pass filter, filtered and then sent to the sample and maintainer input to the 800196 microcontroller The converter, the converted voltage and current values ​​are programmed and calculated to obtain the generator's power angle value. The generator's output power is 5 and the reactive power is output, and the 功0 gain angle value is sent to the microcontroller. The 0 display, the other aspect is sent to the system machine through the serial port of the single chip microcomputer, and the rocking curve of the generator is displayed on the display device, and the system is inclined to enter the monitoring limit, and the limit is passed through the continental part in the machine. hair Alarm. In addition, the connected printer can print the real and imaginary parts of the generator 3 system software design quantity at any time. If the number of sampling points per cycle = 12, then the calculation formula of active and reactive power is P= 3.2 system software description All calculations of the measurement system are in 80196. The main program of the system is completed in assembly language. The main calculation of voltage and current power and power angle is performed. The result of floating point number is 8, the code conversion, the finishing of the character and the value of the power angle are Limit judgment. A software timer interrupt is used in the program, which is used to control the flashing alarm of the illuminating pole tube and the 3.1 algorithm because of the strong filtering function of the Zhoubo Fusie method. In the measurement and use, the device is used, and the voltage is divided into LEDgi.Tfti, U, m respectively to generate an interrupt request signal. After the port enters the interrupt service program, the power angle limit flag is checked. If the limit is exceeded, the light is controlled. The tube flashes the alarm and calls the display subroutine. Control 1 display; otherwise, it will directly perform 0. When the interrupt service is completed, it will return to the main program to continue measurement. The system software mainly includes the following subroutine module byte floating-point polynomial calculation subroutine; byte floating point Subprogram; byte floating point arctangent calculation subroutine; display code collation and display character subroutine 4 generator swing curve real-time display 4.1 single-chip microcomputer and system machine connection for the operator to run at any time. 1View the generator and system 1 machine on the 08 Ding real-time small generator swing curve 1 (1) and the generator operating parameters 80196 MCU with a serial port inside, the serial port sends 0 and receives only, 0 The pin is connected through the 13232 chip, and the machine 0 and the 0 pin are connected. The 13232 chip is used for the 1 heart 232. The 1 power is turned, the welcome 3 is set, and the serial port of the single chip is set to the mode 1 and the standard communication mode. 4.2 Communication program 85, send, 1! 5, the general pull device has a complete serial data transmission and reception function, it provides the standard communication parameters settings, can easily solve the serial communication. When writing a communication program, the port number baud rate data bit stop bit should be set mainly.夼 Even check digits and hardware, hand-held Han can use a drop-down box button on a form to choose to save, can. The number of out of 5.0 is stored in the registration of the 1st Stomach 98 system. Each time you run the program, you can use the 18 function to call up these parameters, and on the main form of the communication software written by CominIortSetti, IIandshaking, you can arrange a menu item or a button to open the port when opening the port. , can issue commands to the elbow, 0, 1, the program is as follows, the entire content of the punch 1. The display of the rocking curve is written by the drawing program, and the power angle curve drawing container is selected on the screen of the 0 machine. Shen 1 hired, using the function to connect a large number of measured power angle values ​​with the line to get the power angle curve. In order to achieve dynamic display, the data is updated as required, and when the new data is added, the oldest data is from the right. Moving out, the latest data moving from the left into the screen shows a dynamic curve that moves to the right. 5 Summary of important significance, it can monitor the operating conditions of the hair dryer and the system, to ensure the stable operation of the power system. The system can measure the power angle of the generator, as well as the various operating parameters of the generator. An alarm signal is issued when the angle is exceeded. The value and power value detected by the measuring system can be displayed on the 0, and can be displayed in the 1 machine, 1 according to the instructions of the operating personnel, 0; 1 can follow the rocking curve of the motor and various operating parameter systems The function can be easily extended. For example, when the power angle is exceeded, appropriate countermeasures should be taken at the same time as the alarm, such as starting the excitation regulator to adjust the camera to connect the resistance load, etc., to ensure the safe and stable operation of the power system. The implementation of the above-mentioned tanning function is easy to do with the powerful 80196 single-chip microcomputer. Power System Analysis, first edition. Wuhan Huazhong University of Science and Technology Press, 1996 2 Wang Jian et al. , 0896 series microcontroller principle and application. Wuhan Huazhong University of Science and Technology Press, 1999
Gilteritinib is an orally bioavailable inhibitor of the receptor tyrosine kinases (RTKs) FMS-related tyrosine kinase 3 (FLT3, STK1, or FLK2), AXL (UFO or JTK11) and anaplastic lymphoma kinase (ALK or CD246), with potential antineoplastic activity. Gilteritinib binds to and inhibits both the wild-type and mutated forms of FLT3, AXL and ALK. This may result in an inhibition of FLT3, AXL, and ALK-mediated signal transduction pathways and reduces tumor cell proliferation in cancer cell types that overexpress these RTKs. FLT3, AXL and ALK, overexpressed or mutated in a variety of cancer cell types, play a key role in tumor cell growth and survival.
Gilteritinib is an orally available small molecule inhibitor of FMS-like tyrosine kinase 3 (FLT3) which is used as an antineoplastic agent in the treatment of acute myeloid leukemia with FLT3 mutations. Gilteritinib is associated with a moderate rate of serum aminotransferase elevations during therapy and is suspected to cause rare instances of clinically apparent acute liver injury.
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