3results about How to "Stable output waveform" patented technology

The present invention discloses a single-stage high-frequency inverter, including: a waveform generating circuit, a waveform driving circuit, a push-pull output circuit and a rectifier output circuit; the output end of the waveform generating circuit is connected to the input end of the waveform driving circuit; the output end of the waveform driving circuit is connected to the input end of the push-pull output circuit; the output end of the push-pull output circuit is connected to the input end of the rectifier output circuit; the output end of the rectifier output circuit is connected to the input end of the waveform generating circuit. The present invention integrates the key parts of the inverter, the waveform generating circuit, the waveform driving circuit, the push-pull output circuit and the rectifier output circuit into the inverter, effectively reducing the need for external components and connections, and by directly connecting the input and output ends of each circuit, reducing additional connection lines and interfaces, thereby effectively reducing the overall size, as well as reducing the cost and failure rate of the high-frequency inverter.

The present invention discloses an AC output circuit control method for testing the breaking capacity of a circuit breaker. The AC output circuit is composed of a supercapacitor, a single-phase inverter and a multi-magnetic circuit transformer. Considering the influence of factors such as transformer leakage inductance on current control, a double closed-loop control method combining the primary current model predictive control of the multi-magnetic circuit transformer and the secondary current PI effective value control is adopted. The system error is observed and compensated in the model predictive control by a state observer. In order to achieve a good control effect of the model predictive control, an online parameter identification method is used to establish a more accurate system model, and a dead time compensation method is used to reduce system harmonics. The control method has stable output current and small current harmonics, which provides an important means for realizing AC output of a single-phase inverter.

This invention discloses a condition monitoring and control system for a permanent magnet motor driven by an oil drilling rig, relating to the field of permanent magnet motor condition monitoring technology. It includes a data acquisition and construction module, a data preprocessing and feature extraction module, a dynamic monitoring and trend analysis module, a deep learning evaluation module, and a fuzzy control and real-time compensation module. The data acquisition and construction module first acquires real-time operating data of the inverter during operation through data acquisition equipment. The acquired real-time data is stored in a time-series format, and a dataset is established to provide complete and accurate basic data for subsequent analysis and model evaluation. This invention improves the stability, reliability, and energy efficiency of the permanent magnet motor driven by the oil drilling rig through real-time data acquisition, deep learning evaluation, fuzzy control optimization, and error compensation, adaptively adjusting the dead time, reducing short-circuit risk, energy loss, and harmonic damage, optimizing system performance, and improving operating efficiency.