What is a high frequency inverter?

In many applications, it is important for an inverter to be lightweight and of a relatively small size. This can be achieved by using a High-Frequency Inverter that involves an isolated DC-DC stage (Voltage Fed Push-Pull/Full Bridge) and the DC-AC section, which provides the AC output.

Can HF square-wave voltage injection be used for phase current reconstruction?

The proposed method for the first time applies the HF square-wave voltage injection sensorless control method to the ZVVSM for phase currents reconstruction with an SCS, and solves the problem that the ZVVSM cannot accurately reconstruct the HF response current caused by HF square-wave voltage injection.

What is HF square-wave voltage injection position Sensorless control method?

The proposed HF square-wave voltage injection position sensorless control method with SCS is verified on a 20kW IPMSM platform. The experimental platform is shown in Figure 8. The parameters of IPMSM are shown in Table 1. An induction motor is utilised as a dynamometer to provide load torque for IPMSM.

How does HF square-wave voltage injection work?

The HF square-wave voltage injection method needs to extract the position information from the variation of two consecutive current samplings, so the sampling accuracy of current sensors will directly affect the result of position estimation.

What is a modified square wave inverter?

The Modified Square Wave also known as the Modified Sine Wave Inverter produces square waves with some dead spots between positive and negative half-cycles at the output. The cleanest utility supply like power source is provided by Pure Sine Wave inverters.

Can HF square-wave voltage injection position Sensorless control IPMSM?

To overcome this restriction, an HF square-wave voltage injection position sensorless control method for IPMSM using a single current sensor (SCS) is proposed.