Voltage stabilization control method and system for vehicle-mounted permanent magnet generator set
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A generator set, voltage stabilization control technology, applied in control systems, control generators, electrical components, etc., can solve problems such as poor voltage stability, and achieve the effect of ensuring voltage stability, a wide range of applications, and a high degree of automation
Inactive Publication Date: 2018-09-04
BEIJING INST OF SPACE LAUNCH TECH +1
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[0004] In order to solve the problem of poor voltage stability of the existing vehicle-mounted permanent magnet generator set, the present invention innovatively provides a voltage stabilization control method and system for the vehicle-mounted permanent magnet generator set. Through the collection, calculation and judgment of real-time parameters, the generated The corresponding control commands ensure the voltage stability of the vehicle-mounted permanent magnet generator set from the perspective of reasonably and effectively adjusting the speed of the vehicle-mounted diesel engine, thereby effectively solving the problems existing in the prior art, and ensuring the voltage stability of the vehicle-mounted permanent magnet generator set. The purpose of making the vehicle-mounted permanent magnet generator set suitable for various working conditions
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Embodiment 1
[0035] Such as figure 1 , 2 As shown, this embodiment specifically discloses a voltage stabilization control method for a vehicle-mounted permanent magnet generator set. Stability, specifically, the voltage stabilization control method includes the following steps.
[0036] Step 1. When the vehicle-mounted permanent magnet generator set is working, the real-time voltage U of the vehicle-mounted permanent magnet generator set and the real-time speed r of the vehicle-mounted diesel engine are collected synchronously.
[0037] Step 2, compare the real-time voltage with the preset voltage U N (set value) is compared to obtain the differential voltage; in this embodiment, the real-time voltage is transmitted in the form of a voltage signal, and before the real-time voltage is compared with the preset voltage, a step of filtering the real-time voltage signal is also included; Wherein, the involved differential voltage=real-time voltage−preset voltage.
[0038] Step 3, judging wh...
Embodiment 2
[0043]This embodiment is based on the same inventive concept as Embodiment 1, and the difference is that this embodiment describes the voltage stabilization control of the vehicle-mounted generator set from the perspective of a product. Specifically, this embodiment discloses a voltage stabilization control system for a vehicle-mounted permanent magnet generator set, such as figure 1 , 2 As shown, the voltage stabilization control system includes a voltage sensor, a rotational speed sensor, a power generation controller, and a diesel engine electronic control unit (diesel engine ECU).
[0044] The voltage sensor is used to collect the real-time voltage of the vehicle-mounted permanent magnet generator set, and it is connected with the power generation controller.
[0045] The rotational speed sensor is used to collect the real-time rotational speed of the vehicle-mounted diesel engine, and it is connected with the power generation controller.
[0046] The power generation co...
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Abstract
The invention discloses a voltage stabilization control method and system for a vehicle-mounted permanent magnet generator set. The method includes: a step 1, acquiring the real-time voltage of a permanent magnet generator set and the real-time rotational speed of a diesel engine; a step 2, comparing the real-time voltage and the preset voltage to obtain a difference voltage; a step 3, determiningif the difference voltage is outside a first voltage range, and performing a step 4 if so; returning to the step 1 if not; the step 4, using the difference voltage to determine the rotational speed adjustment amount, superimposing the rotational speed adjustment amount and the real-time rotational speed to obtain the target rotational speed; a step 5, adjusting the rotational speed of the dieselengine to the target speed; and then returning to the step 1. The voltage stabilization control system includes: a voltage sensor, a rotational speed sensor, a power generation controller and a dieselengine electronic control unit. The voltage stabilization control method and system can ensure the voltage stability of the permanent magnet generator set under the working condition with large loadvariation, and make the permanent magnet generator set suitable for various working conditions, thereby solving the problems existing in the prior art.
Description
technical field [0001] The present invention relates to the technical field of vehicle-mounted permanent magnet generator sets, and more specifically, the present invention relates to a voltage stabilization control method and system for vehicle-mounted permanent magnet generator sets. Background technique [0002] Permanent magnet generators have the advantages of simple structure, convenient control, high reliability, high efficiency, strong anti-interference ability, and good power generation performance. Therefore, permanent magnet generators have been increasingly used as vehicle-mounted generators. However, a variety of working conditions are likely to appear during the driving of the vehicle. Under the working conditions of large load changes, the voltage stability of the permanent magnet generator set is poor, and it often has the disadvantage of poor load stability, which cannot meet the needs of use. [0003] Therefore, how to effectively ensure the voltage stabili...
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