Uniform prediction control method for quasi-Z source inverter-permanent magnet synchronous motor systems

The invention discloses a uniform prediction control method for quasi-Z source inverter-permanent magnet synchronous motor systems. According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compens...

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Hauptverfasser:	XIA CHANGLIANG, XIAO SHUXIN, SHI TINGNA, LI XINMIN, DONG KANGDA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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creator	XIA CHANGLIANG XIAO SHUXIN SHI TINGNA LI XINMIN DONG KANGDA
description	The invention discloses a uniform prediction control method for quasi-Z source inverter-permanent magnet synchronous motor systems. According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compensation link, a torque given value is obtained through a rotation speed closed loop, and d and q axiscurrent given values are obtained to calculate a stator flux linkage given value; an inductive current given value is calculated through a power compensation manner so as to obtain an inductive current critical value; and an optimum vector is judged according to a relationship between inductive current and the inductive current given value so as to obtain each control variable at the next moment,the control variables at the next moment are substituted in an evaluation function to obtain an optimum vector, and a switch state corresponding to the optimum vector is output to an inverter. The uniform prediction control me
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According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compensation link, a torque given value is obtained through a rotation speed closed loop, and d and q axiscurrent given values are obtained to calculate a stator flux linkage given value; an inductive current given value is calculated through a power compensation manner so as to obtain an inductive current critical value; and an optimum vector is judged according to a relationship between inductive current and the inductive current given value so as to obtain each control variable at the next moment,the control variables at the next moment are substituted in an evaluation function to obtain an optimum vector, and a switch state corresponding to the optimum vector is output to an inverter. 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According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compensation link, a torque given value is obtained through a rotation speed closed loop, and d and q axiscurrent given values are obtained to calculate a stator flux linkage given value; an inductive current given value is calculated through a power compensation manner so as to obtain an inductive current critical value; and an optimum vector is judged according to a relationship between inductive current and the inductive current given value so as to obtain each control variable at the next moment,the control variables at the next moment are substituted in an evaluation function to obtain an optimum vector, and a switch state corresponding to the optimum vector is output to an inverter. 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According to the method, stator current d and q axis components areobtained through coordinate transformation, each control variable is obtained through a delay compensation link, a torque given value is obtained through a rotation speed closed loop, and d and q axiscurrent given values are obtained to calculate a stator flux linkage given value; an inductive current given value is calculated through a power compensation manner so as to obtain an inductive current critical value; and an optimum vector is judged according to a relationship between inductive current and the inductive current given value so as to obtain each control variable at the next moment,the control variables at the next moment are substituted in an evaluation function to obtain an optimum vector, and a switch state corresponding to the optimum vector is output to an inverter. The uniform prediction control me</abstract><oa>free_for_read</oa></addata></record>
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subjects	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
title	Uniform prediction control method for quasi-Z source inverter-permanent magnet synchronous motor systems
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