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Control method of hybrid excitation generator

A technology of mixed excitation and control method, which is applied in synchronous generator control, control of generator through magnetic field change, control of generator, etc., can solve problems such as influence and failure to achieve optimality, and achieve the effect of short convergence time

Active Publication Date: 2021-06-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0009] Purpose of the invention: The present invention provides a control method for a hybrid excitation generator, which solves the problem that the dynamic curve of the charging current and the output voltage of the existing generator voltage control based on charge and discharge energy control is affected by PID parameters, and cannot be optimally optimized. The problem with multiple adjustment processes

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with the accompanying drawings.

[0068] Such as Figure 9 A control method of a hybrid excitation generator is shown, and its hardware system is as follows figure 1 As shown, it includes a hybrid excitation generator, a single-phase full-bridge converter, a diode uncontrolled rectification circuit, a filter capacitor, a load, an excitation winding voltage source, a first current sensor and a second current sensor. The hybrid excitation generator includes an armature winding and an excitation winding; the diode uncontrolled rectification circuit includes 3 bridge arms, and each bridge arm includes 2 diodes connected in series. The midpoints of the three bridge arms are sequentially connected to the three positive terminals of the armature winding of the hybrid excitation generator, and the three negative terminals of the armature winding are short-circuited. Both ends of the bus bar of the diode unco...

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Abstract

The invention discloses a control method for a hybrid excitation generator. The integral value of the average value of the output current of a rectification circuit is enabled to be equal to the integral value of the load current in the control process through reasonable design of the change rate of the excitation current at each moment when the load of the hybrid excitation generator suddenly increases or decreases, and the instantaneous value of the average value of the current output by a rectifying circuit at the end of the process is equal to the instantaneous value of the load current at the sudden change moment, so that the output voltage can be converged only through one adjustment process, the load sudden change process is free from overshoot or down-regulation, the convergence time is shortest, the problems that the dynamic curve of the charging current and the output voltage controlled by the existing generator voltage based on charging and discharging energy control is influenced by PID parameters, the optimization cannot be realized, and multiple adjustment processes exist are solved.

Description

technical field [0001] The invention relates to the technical field of motor control, and mainly relates to a control method of a hybrid excitation generator. Background technique [0002] Hybrid excitation motor combines the advantages of adjustable excitation field of electric excitation motor, easy fault de-excitation and relatively high torque density of permanent magnet motor, and is especially suitable for application in aeronautical power generation systems. [0003] The main control idea of ​​the hybrid excitation generator power generation system based on the magnetic regulation and voltage regulation strategy is as follows: the given value of the output voltage is different from the actual value, and the difference is obtained through the PID regulator to obtain the given value of the excitation current. The actual value of the current tracks the upper given value. [0004] The dynamic performance of the voltage control of the above system is average, mainly due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/10H02P9/30
CPCH02P9/102H02P9/107H02P9/30H02P2101/30H02P2103/20
Inventor 王宇张成糕夏宇航郝雯娟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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