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Evaluate new energies such as solar power, wind power, and fuel cells
Assess power conditioners that are indispensable for converting new energies to electrical power
Advantages
1. The input and output characteristics of a power conditioner can be measured simultaneously in combination with an AC/DC current sensor
2. Use of a current sensor makes the connection simple. Furthermore, accurate measurements can be performed in combination with the AC/DC CURRENT SENSOR 9709
3. The sale and purchase of electrical energy of a power line connected to a power conditioner can also be measured with one unit
Proprietary HIOKI Technology
4. Measure DC mode integration, which responds quickly to changes in the input of sunlight and the like, and RMS mode integration, which
handles the separate integration of the sale and purchase of electric energy, all at the same time
5. Ripple factor, efficiency and loss, which are required to evaluate power conditioners for solar power generation, can be measured with one single unit.
Solar panels
Power conditioner
Utility grid
DC measurement
AC measurement
Converter
Inverter
Load
Solar panel output measurement
Power conditioner output measurement
(using the 4th channel)
(using the 1st, 2nd and 3nd channel)
Voltage, current, power, power factor,
±electrical energy, current waveform
Voltage, current, power, power factor, frequency, ±electrical
energy, efficiency, loss, voltage/current waveform, harmonic
analysis, voltage ripple factor, voltage disequilibrium factor (when
measuring 3 voltages and 3 currents), voltage/current distortion
factor
Conditioner-specific measurement items all measurable
1
• Power conditioner measurement-specific ripple factor and disequilibrium factor can
also be measured and displayed simultaneously (up to 32 items can be displayed
simultaneously), resulting in enhanced test efficiency
Display item
rms value
P, Q, S, λ values
Loss value
η value
Measurement item
RMS (DC/AC voltage/current of input and output)
Active power, reactive power, apparent power, power factor
Input and output loss
Efficiency
Distortion factor (voltage/current)
Ripple factor (for DC)
thd value
rf value
Disequilibrium
unb value
f value
Output frequency
■ Current trends in solar power generation
●
Interconnected system of solar power generation and power conditioner
● The 3390 supports a long list of measurement items including the specific
ones required.
Electrical energy generated from the solar power generation is DC electrical energy, so it needs
to be converted to AC electrical energy to be used by connecting to the utility grid. The device
to convert direct current to alternating current is the power conditioner. In particular, to sell
electrical energy by connecting to the utility grid, the performance of the power conditioner is
important, so the method to evaluate the performance is specified by the national standards.
The 3390 can measure ripple factor and evaluate and analyze through simultaneous
measurements.
●
IEC standard
Utility grid
DC variable
Test power
IEC 61683:1999, Photovoltaic systems -Power conditioners- Procedure for measuring efficiency
power
conditioner
supply
●
Evaluation and measurement of power conditioners
The IEC standard stipulates detailed measurement items to evaluate the input and output
characteristics of power conditioners such as harmonic level, ripple factor, voltage
disequilibrium factor, and voltage/current waveform.
ASM-SENSOR [ ASM GMBH ]
