Low-carrier-wave-ratio on-line computation multi-mode space vector pulse width modulation soft core

Abstract

The invention discloses a low-carrier-wave-ratio on-line computation multi-mode space vector pulse width modulation soft core which can complete on-line computation multi-mode space vector pulse width modulation in a high-power three-phase alternating current asynchronous motor control system. The low-carrier-wave-ratio on-line computation multi-mode space vector pulse width modulation soft core mainly comprises an AD control module 01, a double-port RAM 02 based on FPGA, a double-port RAM control module 03, a section judgment module 04, a modulation mode switchover management module 05, an asynchronous modulation time computation module 06, a vector action angle computation module 07, a time normalization module 08 and a PWM signal generation module 09. The low-carrier-wave-ratio on-line computation multi-mode space vector pulse width modulation soft core not only has the advantages of high speeds and high reliability of a hardware circuit, but also has good module reusability and transportability, and is good in steady-state performance and dynamic-state performance. When serving as a motor control system coprocessor, the low-carrier-wave-ratio on-line computation multi-mode space vector pulse width modulation soft core liberates a core controller (a floating point DSP) from a large amount of sine and cosine computation and periodic events occupying too many resources, better runs a motor core control algorithm and improves the performance of the control system.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for accurate computation and adjustment of analog circuits based upon their properties. Additionally, this technology enables efficient use of memory resource without requiring repetitive modifications or changes made when new components become operational. Overall, these technical improvements improve the functionality and usable life span of digital systems used in electric motors.

Problems solved by technology

This patented technical solution describes an advanced type of hybrid induction machine driving system called Multi-Level Power Control System (MPCS). It uses double-ended delta waveforms instead of traditional sinusoidal waves or sinewave currents to improve linearity without adding extra components like resist elements. Additionally, Multiple Address Digital Memory Access Random Phase Vector Quantum Computing (ADAPC)-based scalar pulsing techniques have developed over recent years, making them faster and easier to implement. These advancements make MPSMs suitable for implementation in MPCS's internal processing unit(ISPM1). Overall, these improvements enhance the overall functionality and durability of PMOSFAs in multiple phase mode converters while maintaining their superior performance characteristics.

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