Electricity monitoring device, electric quantity monitoring system and electric quantity monitoring method
A technology for monitoring devices and electricity, applied in measuring devices, measuring electrical variables, signal transmission systems, etc., and can solve problems without considering the use or characteristics of electrical equipment
Inactive Publication Date: 2015-10-28
ORMON CORP
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Problems solved by technology
Therefore, there is a problem that high-precision judgment cannot be performed because the usage conditions or characteristics (such as rated power, etc.) of each electric device included in the electricity contract are not considered
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[0130] Next, based on Figure 4 ~ Figure 6 , to describe a specific embodiment of the power monitoring process.
[0131] In this embodiment, the statistical unit is used as the category unit of electrical equipment. That is, the production facilities 6a and 6b are regarded as one statistical unit (statistical unit A), the air conditioners 7a and 7b are regarded as one statistical unit (statistical unit B), and the lamps 8a and 8b are regarded as one statistical unit (statistical unit C). In addition, the total rated power of the production facilities 6a and 6b is 50MW / h, the total rated power of the air conditioners 7a and 7b is 30MW / h, and the total rated power of the lamps 8a and 8b is 20MW / h.
[0132] Let the alarm level value of each statistical unit be the total rated power of the electrical equipment included in the statistical unit. That is, the alarm level value of statistical unit A is 50MW×elapsed time / 60 minutes, the alarm level value of statistical unit B is 30MW...
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Provided are an electric energy monitoring device, an electric energy monitoring system and an electric energy monitoring method, reflecting the use conditions and characteristics of a plurality of electronic devices in a monitoring scope and determining whether the electricity consumption of the electronic devices in the monitoring scope is excessive. The electric energy monitoring device comprises a data calculating section (22), which classifies the electronic devices in the monitoring scope into a plurality of calculation units and calculates the electricity consumption of each calculation unit, an alarm level difference calculating unit (23 ) which calculates alarm level difference, namely the difference between the electricity consumption and the alarm level value, an alarm determination value calculation unit (24) which calculate the alarm determination value based on the alarm level difference of each calculation unit, a determination unit (25) which determines whether the alarm determination value surpasses the alarm threshold, and an alarm sending unit (27) which sends alarm information of excessive electricity consumption of the electronic devices within the monitoring scope to a notification device.
Description
technical field [0001] The present invention relates to a power monitoring device, a power monitoring system and a power monitoring method for monitoring the power consumption of a plurality of electrical equipment (electric appliances) and / or electrical equipment groups (electric equipment groups) included in a predetermined monitoring range. Background technique [0002] Typically, the power company sets a base rate based on demand for consumers using high-voltage electricity. Therefore, in order to reduce costs, consumers such as companies conduct demand monitoring so that the accumulated power consumption (electric energy) within a demand period (usually 30 minutes) does not exceed the target demand value (management demand value). Therefore, various demand monitoring systems for demand monitoring have been developed. [0003] For example, an existing general demand monitoring system calculates the power consumption based on metering pulses of electricity supply and dem...
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IPC IPC(8): G01R22/00
CPCG01R11/32G01R19/2513G01R22/10G08B21/182G08C17/02
Inventor 中嶋康暁中村淳
Owner ORMON CORP