摘要:
A manufacturing method for manufacturing a solar panel including a solar cell and an outer housing and an inspection method for inspecting a solar panel generating system, include a step of performing one of a withstand voltage test and an insulation resistance test between a live electrical section electrically connected to the solar cell and a conductor section of the outer housing, and thereafter a step of applying a voltage between the live electrical section and the conductor section. In this way, a residual charge left subsequent to the withstand voltage test or the insulation resistance test is reliably removed within a short period of time.
摘要:
A solar cell assembly including a plurality of solar cells is formed on a common substrate, and a DC/DC converter which converts the output from the solar cell is connected to each solar cell to constitute a solar power generation apparatus. The output from the solar power generation apparatus is converted into an AC power by an inverter and supplied to a load or commercial AC power system. Since the arrangement is simplified, the manufacturing cost can be reduced, and the influence of partial shade or a variation in characteristic decreases.
摘要:
AC module makers must prepare two types of AC modules for the 100-V and 200-V outputs only for domestic supply. For foreign countries, the makers must manufacture AC modules compatible with more system voltages. To solve these problems, 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.
摘要:
AC module makers must prepare two types of AC modules for the 100-V and 200-V outputs only for domestic supply. For foreign countries, the makers must manufacture AC modules compatible with more system voltages. To solve these problems, 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.
摘要:
A solar cell assembly including a plurality of solar cells is formed on a common substrate, and a DC/DC converter which converts the output from the solar cell is connected to each solar cell to constitute a solar power generation apparatus. The output from the solar power generation apparatus is converted into an AC power by an inverter and supplied to a load or commercial AC power system. Since the arrangement is simplified, the manufacturing cost can be reduced, and the influence of partial shade or a variation in characteristic decreases.
摘要:
If an inverter is merely attached to the back side of a solar battery module, the inverter becomes an obstacle to transport and installation, it may be broken if it strikes a building structure at the time of installation and it may malfunction owing to impact with an object. Accordingly, a weather-resistant film, a first filler, a solar battery element, a second filler and a back reinforcing material are stacked in the order mentioned and the fillers are melted using a vacuum laminator to thereby seal the solar battery element in resin between the back reinforcing material and weather-resistant film. At this time an inverter is placed on the surface of the back reinforcing material that opposes the solar battery element.
摘要:
The temperature of a bypass diode of a solar cell module is measured by a temperature detector from the exterior of the solar cell module, and the results of temperature detection of each bypass diode are mutually compared to detect the presence or absence of failure in the solar cell module. Also at least one solar cell in the solar cell module is covered with a light shielding plate, then a current flowing in the bypass diode bypassing to the covered solar cell is detected, and a failed solar cell module is detected from the result of the current detection. Also the solar cell module is provided with a temperature detector capable of detecting the temperature of the bypass diode and the temperature of an internal portion of the solar cell module other than the bypass diode. In this way, it is possible to detect a failure in the solar cell module easily and precisely, and also to detect short circuit failure in the solar cell.
摘要:
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 premises. To prevent this, when a ground fault is detected by a detector capable of detecting a ground fault within a shorter time than the customer's ground fault interrupter, the gate of 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.
摘要:
When a ground fault occurs in some solar battery string, this solar battery string may be disconnected and operation of a solar power generation system may be continued. If the open-circuit voltage of the solar battery string is high, a safety problem arises. If the open-circuit voltage is decreased, the conversion efficiency decreases. Therefore, an intermediate switch is provided midway along the solar battery string. When a ground fault occurs, this solar battery string where the ground fault has occurred is divided into substrings.
摘要:
A solar cell array is constructed by connecting plural solar cell strings in parallel, and the solar cell array is arranged to have strings of two or more rated voltages. This arrangement permits the solar cell array to be designed so as to maximize the output capacity in an area where the solar cells can be installed. In addition, the arrangement has high degrees of freedom of design to enable to construct a preferred configuration in terms of the design. Further, the solar cell array can be provided in a device configuration of low cost. Also provided is an array constructing method to facilitate installation and wiring.