Patent
System interconnection electric power generator and control method therefor
TLDR
In this article, a microcomputer for controlling at least a boosting circuit and an inverter circuit so that AC power suitably usable as the AC power of a commercial power supply system can be supplied to the commercial Power Supply system is presented.Abstract:
In a solar energy generator including a solar battery a microcomputer for controlling at least a boosting circuit and an inverter circuit so that AC power suitably usable as the AC power of a commercial power supply system can be supplied to the commercial power supply system, the power to be supplied to the various kinds of equipment of the solar energy generator is selectively supplied from one of the solar battery and the commercial power supply system. The microcomputer stores the operational status data of the solar energy generator into an external storage device, and these data can be used for maintenance or trouble shooting of the solar energy generator.read more
Citations
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Patent
Distributed Power Harvesting Systems Using DC Power Sources
TL;DR: In this article, the converters are coupled in series and an inverter is connected in parallel with the series connection of converters and inverts a DC input to the inverter from converters into an AC output.
Patent
Monitoring of Distributed Power Harvesting Systems Using DC Power Sources
TL;DR: A monitoring system and method for monitoring performance of individual powers sources in a distributed power source system is presented in this paper, where a monitoring module is coupled to each of the power sources or to each string of serially connected power sources to monitor and collect data regarding current, voltage, temperature and other environmental factors at the power source.
Patent
Method for distributed power harvesting using DC power sources
TL;DR: In this article, the converters are coupled in series and an inverter is connected in parallel with the series connection of converters and inverts a DC input to the inverter from converters into an AC output.
Patent
Method and apparatus for converting direct current to alternating current
TL;DR: In this paper, a method and apparatus for converting Direct Current (DC) to Alternating Current (AC) is presented, which comprises performing system analysis on at least one of a DC current, DC voltage, or an AC voltage; utilizing the system analysis for selecting at least 1 conversion parameter; and converting DC to AC utilizing the at least 2 conversion parameter.
Patent
Method and apparatus for tracking maximum power point for inverters, for example, in photovoltaic applications
TL;DR: In this paper, an outer voltage feedback loop and an inner current feedback loop are employed to control a power converter, such as a DC to AC inverter, for transferring electrical power between a power source, for example a photovoltaic array, and a load.
References
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Patent
Solar generation system
Fumiya Kimura,Hirofumi Nakata,Tsukasa Takebayashi,Hirokazu Kodama,Kiyoshi Yamatotakada Nishida +4 more
TL;DR: In this article, a solar generation system includes a standard solar cell string and a substandard solar string, and a DC voltage output from the sub-cell string is boosted by a booster unit to the level of the DC voltage from the standard cell string, which is then applied to a DC/AC inverter, whereby an AC power is obtained.
Patent
Interconnection power converter and power generation apparatus using the same
TL;DR: In this paper, a ground fault is detected by a detector capable of detecting ground fault within a shorter time than the customer's ground fault interrupter, the gate of the inverter of the power conditioner is blocked, a switch is changed to an open state, and the input voltage of inverter is held at a voltage value higher than the peak value of the alternate current voltage of a power system until at least the switch changes to the open state.
Patent
Method of operating a power supply system having parallel-connected inverters, and power converting system
TL;DR: In this paper, a plurality of inverters for converting DC power outputted from a DC power supply, such as solar cells or fuel cells, to AC power are operated efficiently without being biased to particular inverters.
Patent
Power converting apparatus and power generating apparatus
TL;DR: The control circuit of an AC module controls the operation of an inverter circuit and/or the transformation ratio of a transforming circuit, and ON/OFF-controls a switch on the basis of the system voltage and connection state of an electric power system as mentioned in this paper.
Patent
System connecting device
Hideo Iwamoto,Takahiko Iida +1 more
TL;DR: In this paper, the buck-boost type or buck-type chopper circuits and transistors are employed as inverters and power synchronizing switches (SW1, SW2), respectively, to convert DC voltage generated by solar cells into positive and negative half-wave AC voltages for an AC power supply (AC1).