JCM_TH_F_PM_ver01.0

Additional Information :Reference transmission line loss (𝑃𝐿𝑅𝐸,𝑋,𝑙𝑖𝑛𝑒𝑠,𝑝 ) is calculated by the formulae (2)-(4) and Steps
1-7 shown in F.2. The method means calculating reference transmission line loss based on thereference voltage that is set by adopting the mode value of the ratio to the base voltage of eachtransmission line. The mode value of the ratio to the base voltage is referred to as an indicator for
reproducing the operation of the power grid that would not install OPENVQ. The validity of thecalculation method can be confirmed by taking the steps shown below.
To start with, calculate transmission line losses of three cases:a) Measured transmission line loss (PLmeasured,X,lines)
Calculate transmission line loss PLmeasured,X,lines,n of the region X in each sampled day 1-12 by thecalculation formula of EGAT shown in F.2.(4), using measured values of each sampled day thatis determined following Step 1 in F.2. Calculate the sum of the losses in the sampled days as
follows:
12

𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑙𝑖𝑛𝑒𝑠 = ∑ 𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑙𝑖𝑛𝑒𝑠,𝑛𝑛=1b) Estimated transmission line loss in the case of installing OPENVQ (PLOPENVQ,X,lines)
Calculate transmission line loss PLOPENVQ,X,lines,n of the region X under OPENVQ control in eachsampled day 1-12, using active power and transmission line parameter measured in each sampled
day (Pk,i,t,Ri,Xi,Bi) and estimated reactive power and voltage in the case of installing OPENVQ(QOPENVQ,k,i,t,VOPENVQ,k,i,t,VOPENVQ,l,i,t). Calculate the sum of the losses in the sampled days as
follows:
12

𝑃𝐿𝑂𝑃𝐸𝑁𝑉𝑄,𝑋,𝑙𝑖𝑛𝑒𝑠 = ∑ 𝑃𝐿𝑂𝑃𝐸𝑁𝑉𝑄,𝑋,𝑙𝑖𝑛𝑒𝑠,𝑛𝑛=1c) Reference transmission line loss (PLRE,X,lines)
Calculate transmission line loss PLRE,X,lines,n of the region X in each sampled day 1-12 by theformulae (2)-(4) and Steps 1-7 shown in F.2., using active power and transmission line parametermeasured in each sampled day (Pk,i,t,Ri,Xi,Bi) and reactive power and voltage in the case ofinstalling OPENVQ as calculated in b). Calculate the sum of the losses in the sampled days asfollows:1

JCM_TH_F_PM_ver01.0

12𝑃𝐿𝑅𝐸,𝑋,𝑙𝑖𝑛𝑒𝑠 = ∑ 𝑃𝐿𝑅𝐸,𝑋,𝑙𝑖𝑛𝑒𝑠,𝑛𝑛=1

Next, calculate following substation losses:d) Measured substation loss (PLmeasured,X,substations)
Calculate substation loss PLmeasured,X,substations,n of the region X in each sampled day 1-12, using
measured values of the sampled days. Calculate the sum of the losses in the sampled days as
follows:
12

𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠 = ∑ 𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠,𝑛𝑛=1e) Simulated substation loss in the case of installing OPENVQ (PLOPENVQ,X,substations)
Calculate substation loss PLOPENVQ,X,substations,n of the region X under OPENVQ control in eachsampled day 1-12, using active power and substation parameter measured in each sampled day
and reactive power and voltage in the case of installing OPENVQ as calculated in b). Calculate
the sum of the losses in the sampled days as follows:
12𝑃𝐿𝑂𝑃𝐸𝑁𝑉𝑄,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠 = ∑ 𝑃𝐿𝑂𝑃𝐸𝑁𝑉𝑄,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠,𝑛𝑛=1

The validity of the calculation method of reference emissions shown in F.2. is confirmed if thereference transmission line loss (PLRE,X,lines) calculated above fulfills the following formula:
𝑃𝐿𝑅𝐸,𝑋,𝑙𝑖𝑛𝑒𝑠 − 𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑙𝑖𝑛𝑒𝑠 < 𝑃𝐿𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑑,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠 − 𝑃𝐿𝑂𝑃𝐸𝑁𝑉𝑄,𝑋,𝑠𝑢𝑏𝑠𝑡𝑎𝑡𝑖𝑜𝑛𝑠

The above-mentioned steps should be taken using data during the sampling period mentioned inF.2. and the validity of which should be confirmed in the validation process.

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