11 results about "Power conditioner" patented technology

This invention relates to the field of single-phase power regulation technology, and more particularly to a multifunctional single-phase power regulator, comprising: a main circuit module for connecting the power supply and load and setting power regulation devices in series; an internal power supply and voltage regulation module that draws power from the main circuit and performs current limiting, rectification, and voltage regulation; a control and regulation module that generates control signals based on input signals and main circuit parameters under its power supply; a trigger suppression and synchronous start module that prohibits triggering before the power supply is stable or synchronization conditions are met; a protection monitoring module for monitoring main circuit parameters and prohibiting triggering in case of abnormalities; and a heat dissipation and maintenance module with an independent disassembly and assembly structure. In this invention, by drawing power from the main circuit and uniformly supplying power to the control and trigger modules for coordinated operation, control conditions are synchronously established when the main circuit is turned on, thereby improving the problem of false triggering and inconsistent start-up that easily occurs in traditional single-phase power regulators due to asynchronous power supply between the main control and the main circuit.

As shown in the reference diagram illustrating its use, this product is primarily intended to protect power conditioners and junction boxes installed at high positions such as poles and utility poles, or on the ground, in solar power generation facilities. It is used to surround these components to prevent theft and keep people away from them.

This invention relates to a hybrid energy storage railway power regulator technology under a virtual motor control system. It introduces a virtual inertial element into the current compensation strategy of the railway power regulator and employs virtual DC motor control in the hybrid energy storage system. Power quality is managed through the railway power regulator, and regenerative braking energy is recovered and utilized by connecting to the hybrid energy storage device. A segmented adaptive power allocation strategy based on the filtering time constant of the energy storage unit's state of charge and a dynamic adjustment strategy for limited power within the hybrid energy storage system are adopted. By adjusting the filtering time constant, "shallow charging and discharging" of the battery is ensured, with the supercapacitor handling the remaining power after the battery bears part of the load. A virtual inertial element is introduced to provide inertial support compared to the traditional control of railway power regulators, and virtual DC motor control is used for the hybrid energy storage system. This results in frequency stability under load fluctuations, as well as better dynamic performance and anti-interference capabilities.

This invention provides a DC cable monitoring system for solar power generation facilities that can determine whether an abnormality in a monitored DC cable is due to theft or a malfunction such as a failure. [Solution] The system includes a resistance value measuring means 20 that can measure the resistance value of a DC cable 6 connecting a power conditioner 5 to a power aggregation unit 4 that aggregates the DC power generated by the solar cell unit 3; an abnormal resistance value setting means 30 that sets a first lower limit L1 as the lower limit of the normal resistance value, and a second lower limit L2 which is a resistance value smaller than the first lower limit L1, based on the normal resistance value NR of the DC cable 6; and an abnormal condition determination means 50 that, when monitoring the cable, determines that a break has occurred in the DC cable 6 when the resistance value of the DC cable 6 is less than or equal to the first lower limit L1 and greater than or equal to the second lower limit L2, and determines that a malfunction other than a break has occurred in the DC cable 6 when the resistance value is less than the second lower limit L2.

In the present invention, an arc detection device comprises a current sensor, an arc determination unit, an energy calculation unit, a recording unit, a cutoff control unit, and a communication unit. The arc determination unit determines the occurrence of an arc on the basis of detection results from the current sensor. The recording unit records data related to arc energy calculated by the energy calculation unit. The cutoff control unit outputs a first control signal when an arc generation unit determines that an arc has occurred and the arc energy calculated by the energy calculation unit is greater than or equal to a prescribed threshold. The communication unit transmits, to a user interface, at least one of a warning signal and data related to the arc energy when the arc determination unit determines that an arc has occurred and the arc energy is less than the prescribed threshold.

A power regulator according to an embodiment of the present invention may comprise: a fuse module which includes first to third fuses, a thyristor module which includes first to third thyristors and controls power supplied to a load, a single-phase zero crossing detection unit which includes first to third photocouplers, a three-phase zero crossing detection unit which includes fourth to sixth photocouplers, and a switch unit which physically insulates the single-phase zero crossing detection unit and the three-phase zero crossing detection unit from each other.

The challenge is to enable the storage of appropriate amounts of hydrogen in buildings such as houses, while also being able to determine the necessity of delivering hydrogen to those buildings. [Solution] The energy utilization system comprises multiple buildings (10) and a management device (40). Each building (10) has a fuel cell power generation device (23) and multiple cartridges (20). The management device (40) determines the need to deliver hydrogen-filled cartridges (20) to each building (10). For each building (10), the management device (40) performs a first calculation process to calculate the ratio of empty cartridges (20) to the total number of cartridges (20), a comparison process to compare the ratio calculated by the first calculation process with a predetermined value, and a determination process to determine that delivery of hydrogen-filled cartridges (20) is necessary if the ratio exceeds the predetermined value as a result of the comparison process.

To provide a charging connector that can be held in a direction and angle that is convenient for the user. [Solution] A charging connector 1 comprises a connector housing 5 fixed integrally with an outlet 4 that can be inserted into a vehicle-side inlet or a power conditioner-side inlet, and a charging cable 3 that connects to the outlet 4 and covers a plurality of core wires 9 for supplying power with a covering material, wherein a movable unit 6 is provided interposed between the connector housing 5 and the core wires 9, and the movable unit 6 consists of a cylindrical movable pipe portion 7 into which the core wires 9 are inserted, and a pipe bearing portion 8 supported by the connector housing 5 and moving the movable pipe portion 7 radially and covering at least a part of the outer circumference of the movable pipe portion 7, and the movable pipe portion 7 is further provided with a stopper portion that restricts axial movement between the movable pipe portion 7 and the pipe bearing portion 8.

A system and method for operating one or more power regulators are provided. [Solution] A power regulator may include an enable pin configured to receive an enable signal to activate the generation of an output voltage. The power regulator may further include a power good pin configured to output a power good signal indicating the state of the output voltage. The power regulator may further include circuitry configured to detect the presence of a fault condition. The circuitry may be further configured to deassert the power good pin to disable a downstream device and deassert the enable pin to disable an upstream device in response to the detection of a fault condition.

Systems and methods for operating one or more power regulators are described. A power regulator can include an enable pin configured to receive an enable signal for enabling generation of an output voltage. The power regulator can further include a power good pin configured to output a power good signal indicating a status of the output voltage. The power regulator can further include a circuit configured to detect a presence of a fault condition. The circuit can be further configured to, in response to detecting the fault condition, de-assert the power good pin to disable a downstream device and de-assert the enable pin to disable an upstream device.