1
Seiji Kurokami, Kimitoshi Fukae, Nobuyoshi Takehara: Power control apparatus for solar power generation system. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 13, 1999: US05923158 (173 worldwide citation)

In a power control apparatus of a solar power generation system for converting power generated by a solar panel and supplying the converted power to a load, the output voltage and output current of the solar panel are sensed, and, under ordinary conditions, MPPT control is performed so that the sola ...


2
Yoshitaka Nagao, Kimitoshi Fukae, Nobuyoshi Takehara, Seiji Kurokami: Solar power generation apparatus and power control device therefor. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 9, 1999: US05869956 (149 worldwide citation)

In order to extract maximum power from a solar cell, maximum power point tracking (MPPT) control is performed under ordinary circumstances. If the output current of the solar cell becomes too small, the operating point of the solar cell is caused to fluctuate over a range wider than that of MPPT con ...


3
Masaki Suzui, Naoki Manabe, Nobuyoshi Takehara, Seiji Kurokami: Power converting apparatus, control method therefor, and power generation system. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, January 13, 2004: US06678174 (125 worldwide citation)

In a solar power generation system having an inverter, if a smoothing capacitor in the inverter degrades, the operation of the inverter is interrupted, and a loss in the amount of power generation occurs inevitably. To prevent this loss, a degradation determination section (


4
Seiji Kurokami, Naoki Manabe, Nobuyoshi Takehara: Interconnection power converter and power generation apparatus using the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 20, 2001: US06320769 (114 worldwide citation)

In a solar power generation apparatus using a solar battery having a relatively large ground capacitor and a power conditioner having a non-insulated input and output, a customer's ground fault interrupter may perform unwanted interruption due to a ground fault outside the customer's premi ...


5
Seiji Kurokami, Naoki Manabe, Nobuyoshi Takehara: Power converting apparatus, control method therefor, and solar power generation apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 18, 2006: US07079406 (105 worldwide citation)

The object is to reliably detect a ground fault of a solar battery. To detect a ground fault position to take an efficient measure against the ground fault, DC power input from a solar battery is converted into AC power and supplied to a system. In a system interconnection inverter (utility connecte ...


6
Seiji Kurokami, Nobuyoshi Takehara, Manabu Nakanishi: Power converter and power unit. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 8, 2005: US06963147 (105 worldwide citation)

Control means is provided, in which the whole of the phase difference of a power waveform of each phase is matched to a value dividing a cycle of the power waveform into n-equal portions, and at the same time, the whole of the power value of each phase is controlled to be identical, so that the powe ...


7
Seiji Kurokami, Kimitoshi Fukae, Nobuyoshi Takehara: Power control method and apparatus for battery power supply and battery power supply system. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 17, 1998: US05838148 (100 worldwide citation)

Power supplied from a battery power supply to a load through a power conversion unit is maximized with a relatively simple arrangement and a small processing load. In addition, an output command value for controlling the power conversion unit is detected, a set voltage for which the output command v ...


8
Seiji Kurokami, Naoki Manabe, Nobuyoshi Takehara: Method of reducing leakage current in power supply systems. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, August 26, 2003: US06611441 (100 worldwide citation)

In a power supply system for converting the output of a DC power supply having an earth capacitance to AC power, an input voltage from an input-voltage detector and an intermediate voltage from an intermediate-voltage detector are input to an input-ripple controller. The latter calculates the differ ...


9
Hiroshi Kondo, Nobuyoshi Takehara, Seiji Kurokami: Solar battery module and power generation apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, January 4, 2005: US06838611 (98 worldwide citation)

AC module, integrating a solar battery and an inverter, can easily be connected with other plural AC modules in parallel by way of cascade connections. However, when the number of AC modules connected is improvidently increased, the current flowing through the current path or connector of the AC mod ...


10
Seiji Kurokami, Kimitoshi Fukae, Akiharu Takabayashi, Nobuyoshi Takehara: Power generation system and power generation apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, October 24, 2006: US07126053 (94 worldwide citation)

In a power generation system of this invention, the outputs from power generation layers electrically connected in series are input to corresponding power conversion devices, and boosted outputs are connected in parallel and fed to a load. Alternatively, the output from one of power generation layer ...