Outside loop control device and method for realizing plasma beam focusing in Hall thruster

A Hall thruster, plasma technology, applied in the direction of plasma, thrust reverser, and plasma utilization, can solve the problems of complex calculation, adjustment, poor controllability, etc., and achieve focusing, strong operability, and implementation process. simple effect

Inactive Publication Date: 2011-02-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex calculation and adjustment and poor controllability of the existing method for realizing the focus of the plasma

Method used

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  • Outside loop control device and method for realizing plasma beam focusing in Hall thruster
  • Outside loop control device and method for realizing plasma beam focusing in Hall thruster
  • Outside loop control device and method for realizing plasma beam focusing in Hall thruster

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specific Embodiment approach 1

[0013] Specific implementation mode one: According to the instructions attached figure 1 This embodiment is described in detail. The outer loop control device for realizing the plasma beam focusing of the Hall thruster described in this embodiment, the control device includes the external power supply loop system of the Hall thruster 1, an oscilloscope 2, Variable resistor 3, adjustable inductance 4 and adjustable capacitor 5, the external power supply loop system includes a first power supply 1-1, a first coil 1-11, a second power supply 1-2, a second coil 1-21, The third power supply 1-3, the third coil 1-31, the fourth power supply 1-4, the fifth power supply 1-5, the first resistor R1, the second resistor R2 and the third resistor R3,

[0014] The two power output terminals of the first power supply 1-1 are respectively connected to the two ends of the first coil 1-11, and the two power output terminals of the second power supply 1-2 are respectively connected to the two e...

specific Embodiment approach 2

[0018] Specific implementation mode two: according to the instructions attached figure 2 Describe this embodiment in detail. This embodiment is an outer loop control method for realizing the plasma beam focusing of a Hall thruster based on the outer loop control device described in Embodiment 1. The control method includes the following steps:

[0019] Step 1: Start the Hall thruster 1 and adjust it to a stable discharge working state;

[0020] Step 2: Start the oscilloscope 2, and adjust its display scale and sweep time;

[0021] Step 3: Use the oscilloscope 2 to monitor the low-frequency oscillation signal in the Hall thruster 1, and adjust the variable resistor 3, adjustable inductance 4 or adjustable capacitor 5, so that the voltage and current fluctuations in the Hall thruster 1 The phase angle difference is 180 degrees to realize the focus of the plasma beam in the Hall thruster, that is, to complete the control of the focus of the plasma beam in the Hall thruster 1 . ...

specific Embodiment approach 3

[0023] Specific embodiment three: This embodiment is a further description of specific embodiment two. In specific embodiment two, the stable discharge working state of the Hall thruster 1 described in step one is: the discharge voltage is 400V, and the anode I+gas supply The flow rate is 3mg / s, and the magnetic field configuration is fixed.

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Abstract

The invention provides an outside loop control device and a method for realizing plasma beam focusing in a Hall thruster and relates to a plasma beam focusing technology in the Hall thruster. The device and method solve the problem that the calculation and adjustment are complex and the problem that the controllability is poor in the conventional method for realizing plasma beam focusing in a Hall thruster. The device of the invention comprises an externally powered loop system, an oscillograph, a variable resistor, an adjustable inductance and an adjustable capacitor. The method of the invention includes the following steps of: firstly, starting the Hall thruster and adjusting the Hall thruster to a stable discharge operational state; secondly, starting the oscillograph and adjusting the display scale and the scanning time of the oscillograph so as to clearly display low-frequency oscillation signal on the oscillograph; and finally, adjusting the value of the variable resistor, the adjustable inductance and the adjustable capacitor, keeping the phase-angle difference between the voltage and current fluctuation in the Hall thruster at 180 degrees so as to realize and control the plasma beam focusing in the Hall thruster. The device and the method are suitable for the plasma beam focusing in the Hall thruster.

Description

technical field [0001] The invention relates to a plasma beam focusing technology of a Hall thruster, in particular to an outer loop control device and method for realizing the plasma beam focusing of a Hall thruster. Background technique [0002] Hall Thruster (HET) is a type of electric propulsion. HET uses electrons heated by an electric field to ionize an inert gas working medium. The ionized plasma is accelerated by an electric field and ejected to form a high-speed directional plasma jet to generate thrust. Therefore, the high-speed directional plasma jet formed after focusing can increase the thrust and increase the specific impulse. Since the plasma is oriented parallel to the axial direction, it can reduce its collision with the wall and thus reduce energy loss, reduce wall corrosion, and prolong the thrust. device life. Therefore, the focusing of the Hall thruster plasma beam plays a very important role. [0003] The main method of focusing the plasma beam of the...

Claims

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Application Information

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IPC IPC(8): H05H1/10F03H1/00
CPCY02E30/126Y02E30/10
Inventor 宁中喜于达仁王春生刘维维
Owner HARBIN INST OF TECH
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