Disclosed herein is a solar generation facility capable of using high power by configuring packages each including a power pump and a solar module in multiple stages. The solar generation facility includes a plurality of solar module packages connected in series to one another and stacked in multiple layers and at least one condenser corresponding to the solar module packages. At least one of the solar module packages has a solar module that supplies power to a load stage and a power pump that provides lifting power to the solar module. Here, the solar module outputs the power by reflecting the lifting power provided from the power pump.

The present invention provides a magnetic field control device and a magnetic field control method for a synchronous machine, which can fundamentally cope with the problem of the lack and fluctuation in the voltage maintaining ability from a point of view of a power generation of a power system. A magnetic field control device of the present invention is a device for a synchronous machine that controls a magnetic field of the synchronous machine connected to a power system. The magnetic field control device comprises a magnetic field control system operating electric current flowing through a magnetic field coil of the synchronous machine; a regulator of the magnetic field control system; and a compensation circuit variably regulating a control constant of the magnetic field control system according to a magnitude of magnetic field current or an equivalent of the magnetic field current.

A three-phase motor drive system for operation from a three-phase alternating current (AC) power source. The three-phase motor drive system includes a three-phase hybrid active harmonic filter (AHF) having an input operably connected to the three-phase AC power source, the three-phase hybrid active harmonic filter comprising an active harmonic filter operably connected in parallel with the three-phase AC power source and a three-phase AC reactor disposed in series between the input and an output of the hybrid active harmonic filter. The three-phase motor drive system also includes a three-phase variable frequency motor drive configured to provide excitation signals to a three-phase motor; and a three-phase AC motor operably connected to the three-phase variable frequency motor drive, the three-phase AC motor responsive the excitation signals.

A static volt-ampere reactive (VAR) compensator apparatus includes a capacitor electrically coupled between a phase conductor and a neutral conductor. The apparatus further includes a first switch electrically coupled between the phase conductor and an intermediate node. The apparatus also includes an inductor electrically coupled between the intermediate node and the neutral conductor in series with the first switch. The apparatus includes a second switch electrically coupled between the intermediate node and the neutral conductor in parallel with the inductor. The apparatus further includes a controller configured to transmit signals to the first switch and the second switch that cause the apparatus to modulate between a first state, in which the first switch is open and the second switch is closed, and a second state, in which the first switch is closed and the second switch is open.

Disclosed herein is a solar generation facility capable of using high power by configuring packages each including a power pump and a solar module in multiple stages. The solar generation facility includes a plurality of solar module packages connected in series to one another and stacked in multiple layers and at least one condenser corresponding to the solar module packages. At least one of the solar module packages has a solar module that supplies power to a load stage and a power pump that provides lifting power to the solar module. Here, the solar module outputs the power by reflecting the lifting power provided from the power pump.

A static volt-ampere reactive (VAR) compensator apparatus includes a capacitor electrically coupled between a phase conductor and a neutral conductor. The apparatus further includes a first switch electrically coupled between the phase conductor and an intermediate node. The apparatus also includes an inductor electrically coupled between the intermediate node and the neutral conductor in series with the first switch. The apparatus includes a second switch electrically coupled between the intermediate node and the neutral conductor in parallel with the inductor. The apparatus further includes a controller configured to transmit signals to the first switch and the second switch that cause the apparatus to modulate between a first state, in which the first switch is open and the second switch is closed, and a second state, in which the first switch is closed and the second switch is open.

The present application discloses a direct current (DC) converter including a voltage divider for dividing a voltage provided by a DC voltage source, having a positive DC voltage input terminal, a negative DC voltage input terminal, and a divided voltage output terminal; a conversion circuit having a first switch, a second switch, an inductor unit, a first unidirectional conductor, and a second unidirectional conductor; a positive converted voltage output terminal; and a negative converted voltage output terminal.

The present application discloses a direct current (DC) converter including a voltage divider for dividing a voltage provided by a DC voltage source, having a positive DC voltage input terminal, a negative DC voltage input terminal, and a divided voltage output terminal; a conversion circuit having a first switch, a second switch, an inductor unit, a first unidirectional conductor, and a second unidirectional conductor; a positive converted voltage output terminal; and a negative converted voltage output terminal.

A computer program product and system are disclosed including but not limited to supplying a voltage waveform from a higher power electrical bus to a lower power electrical bus; sensing on the lower power electrical bus, a deviation from a sinusoidal voltage waveform in the voltage waveform supplied from the higher power electrical bus; generating a correction current to adjust the deviation in the voltage on the lower power bus to a substantially sinusoidal voltage waveform; and filtering the correction current to substantially attenuate the correction current from propagating through the filter from the lower power electrical bus to the higher power electrical bus.

The present invention provides a magnetic field control device and a magnetic field control method for a synchronous machine, which can fundamentally cope with the problem of the lack and fluctuation in the voltage maintaining ability from a point of view of a power generation of a power system. A magnetic field control device of the present invention is a device for a synchronous machine that controls a magnetic field of the synchronous machine connected to a power system. The magnetic field control device comprises a magnetic field control system operating electric current flowing through a magnetic field coil of the synchronous machine; a regulator of the magnetic field control system; and a compensation circuit variably regulating a control constant of the magnetic field control system according to a magnitude of magnetic field current or an equivalent of the magnetic field current.