为您提供Shanxi Intelligent Photovoltaic combiner Box Factory的相关知识与详情： 未来智能电网要求具有故障自愈功能，其系统须拥有全网的监测数据，需要将电力设备的状态数据纳入其中，这对平台的实时处理提出了高的要求。那在什么条件下选用光电传感器细分驱动减小了步进角，了步进电机的运行精度，减少了低频振动和高频失步现象。 该系统采用恒流斩波细分驱动方式，其特点是，采用“全开关”式，功率晶闸管工作在全饱和和全关断两种状态，降低了功耗，可选择灵活细分、非细分、固定细分和可变细分，并具……Shanxi Intelligent Photovoltaic combiner Box Factory, 未来智能电网要求具有故障自愈功能，其系统须拥有全网的监测数据，需要将电力设备的状态数据纳入其中，这对平台的实时处理提出了高的要求。那在什么条件下选用光电传感器细分驱动减小了步进角，了步进电机的运行精度，减少了低频振动和高频失步现象。
The system adopts a constant current chopper subdivision driving method, which is characterized by using a "full switch" type. The power thyristor operates in two states: full saturation and full turn off, reducing power consumption. It can choose flexible subdivision, non subdivision, fixed subdivision, and variable subdivision, and has good stability subdivision that can be selected between~and~. A single microprocessor is used for subdivision, which improves processing speed.
The basic principle of stepper motor subdivision is to drive the stepper motor by flowing current to the excitation winding wheels of each phase, thereby forming a change in the direction of the excitation magnetic field combination, causing the stepper motor to rotate, that is, changing the energized state once, the rotor rotates by one step angle. epilogue
According to the principle of positive sequence equivalence, the heat exchange effect of the seal juice is calculated as follows: the average transient reactance of the generator is taken as the last ten positive values, and the negative reactance is taken as the highest value. Therefore, for a steam turbine generator, if the rated line load of the stator is reduced significantly according to the national standard, it will inevitably lead to an excessive increase in the size of the unit, which cannot meet the manufacturing cost requirements.

山西智能光伏汇流箱工厂
The formula for calculating the step angle is, where represents the number of wire states connected to the winding, represents the number of phases of the motor, and B represents the number of rotor teeth.
It can be seen that once the stepper motor is manufactured, its number of phases and rotor teeth will be fixed. In order to reduce the step angle and achieve subdivision, users only need to change the current amplitude through each phase winding without subdivision in the stepper motor drive system. Only when there is a change in the energized state, the value will change accordingly.
For example, for a three-phase stepper motor, when it operates in single or double three beats,=, when it operates in single or double six beats,=if it wants to increase the current in the winding; It must rise and fall step by step, that is, there are several stable intermediate current states between zero phase current and large phase current. The overall land area is relatively large
The current waveforms of each phase in the three-phase six beat four subdivision are given, and the current of each phase increases with the increase of current value and decreases with the increase of current value.
Compared with single and double six beat modes, the key to subdivision driving of stepper motors is to control the current and stability of each phase excitation winding.
The system hardware circuit and its characteristics are shown in the diagram. The system circuit is mainly divided into three parts, namely the sub amplifier reference power supply.
The subdivision part of the subdivision drive schematic is processed by a microprocessor.
For the selection of microprocessors, they are commonly used and do not require expansion or expansion, simplifying the circuit and reducing costs.
The upper computer is mainly used for interpolation operation, manual control, communication with computers, pulse selection, direction selection, slice selection, and subdivision control.
The main function of a segmented microprocessor is to communicate with the upper computer, and undoubtedly there is still a considerable distance to go
The membership degree of each fuzzy inference rule can be obtained by the following formula. The speed response curve of the three parameters calculated according to the following inference formula shows that the speed control system using the adaptive fuzzy controller has good dynamic speed control performance, and the speed is regulated.

山西智能光伏汇流箱工厂
According to the sent subdivision table, the function of the ring distributor is completed to soften the hardware in traditional circuits. Its function is to flexibly generate the required subdivision step current waveform through software control as needed, thereby achieving multiple subdivisions flexibly.
The power amplification part is driven by a constant current chopper.
In the selection of power amplifiers, using field-effect transistors with higher switching frequencies can improve the performance of the system.
In traditional constant current chopper drive circuits, power amplifiers cannot operate in a fully saturated cutoff state, which increases their power consumption, causes severe heating, and reduces their service life. If the power amplifier experiences thermal breakdown, it will provide more reliable data information for the Internet of Things
The circuit will not function properly.
In addition, previous power amplifiers operated in a chopping state, like a rising edge, while power amplifiers operated in a conducting state. Due to the slow decrease in current in the winding, it is usually impossible to achieve subdivision on the falling edge.
In order to solve the above two problems, the following measures have been taken to improve the circuit, so that the power amplifier and the power amplifier operate in a fully on/off state, that is, in a fully saturated cutoff state, so as to work in the same way as the power amplifier, simultaneously turn on and off, reduce the speed of current in the winding, achieve subdivision of the falling edge, and improve the efficiency of the system.
Due to the unipolar output of the reference voltage, a specialized integrated voltage conversion chip was selected to convert the positive voltage into a negative voltage, thereby ensuring the stability of the reference voltage. Then, the output voltage was adjusted to the actual required voltage value through a potentiometer, improving the anti-interference performance of the system. Obtain the corresponding DC output voltage
It may also cause early electrical hazards, posing a threat to personnel safety.

The functions and features of the system software are written in assembly language, and the microprocessor receives step pulses from the upper computer in the form of interrupts. The flowchart of the interrupt program is shown in the following figure.
In the main program, the step is to initialize the microcomputer controlled motor by applying a step current to the phase winding to avoid the impact of sudden changes in phase current from zero to a large value in the interrupt program flowchart during normal operation of the motor, and then wait for the interrupt to interrupt for a while.
In the interrupt program, the subdivision current value is pre stored in the subdivision microprocessor and determined through communication with the upper computer. According to the segmented motor, the corresponding subroutine jumps to determine the direction of motor operation, and then uses the lookup table method to complete data allocation and output.
Core Tip: Analysis of Issues and Grid Connections.
In order to observe the power grid correctly.
By analyzing the status of the power grid, a correct power grid structure model can be established.