Single-chip Flux Linkage Estimation Device
A technology of flux linkage estimation and single-chip microcomputer, which is applied in the direction of controlling electromechanical transmission devices, controlling generators, motor generators, etc., can solve the problems of difficult measurement of flux linkage and visual display, etc., and achieve significant economic benefits, fewer components and lower prices. cheap effect
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specific Embodiment approach 1
[0010] Specific implementation mode one: combine figure 1 , figure 2 and Figure 6 Describe the present embodiment, the single-chip flux linkage estimation device of the present embodiment, it comprises the single-chip microcomputer 1, current sensor 2, voltage sensor 3, power supply 4, display 5 and program software module, the electric energy input terminal of current sensor 2 and grid electric energy One phase is connected, the power output end of the current sensor is connected with one phase of the motor, the power input end of the voltage sensor 3 is connected with the power output end of the current sensor, the power output end of the voltage sensor is connected with the winding center point of the motor, and the power supply 4 The output end of the single-chip power supply is communicated with the power input end of the single-chip microcomputer 1, the output end of the sensor power supply of the power supply 4 is communicated with the power input end of the current ...
specific Embodiment approach 2
[0013] Specific implementation mode two: combination figure 1 and image 3 This embodiment is described. This embodiment is a further limitation of the single-chip flux linkage estimation device described in Embodiment 1. The current sensor 2 adopts an LA28-NP multi-range sensor.
[0014] The current sensor selects the LA28-NP multi-range sensor of LEM Company. The LEM current sensor module is a power electronic device introduced by Swiss LEM Company, which can measure DC, AC and pulsating current. The LEM module is an active electronic transformer. Its outstanding advantage is that it organically combines ordinary transformers with Hall devices and electronic circuits. It not only takes advantage of the large measurement range of ordinary transformers, but also utilizes The advantage of being fast. LEM modules have been widely used in many fields of power electronics technology due to a series of advantages.
[0015] LA28-NP is a closed-loop compensation current sensor us...
specific Embodiment approach 3
[0020] Specific implementation mode three: combination figure 1 and Figure 4 This embodiment is described. This embodiment is a further limitation of the single-chip flux linkage estimation device described in Embodiment 1. The voltage sensor 3 is an LV28-P voltage sensor.
[0021] The voltage sensor selects the LV28-P voltage sensor of LEM Company, which has the same principle as the current sensor module of LEM and has the same advantages.
[0022] The advantage of LV28-P is the same as that of LA28-NP, the difference is that for voltage measurement, the ratio of the primary current to the measured voltage must pass through an external resistor R selected by the user. 1 Make sure, and connect it in series to the primary side circuit of the sensor.
[0023] The LV28-P voltage sensor does not need to select the range, the difference is that an external resistor R to be selected 1 , and connected in series on the primary circuit of the sensor, the rated current of LV28-P is...
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