Abstract
In this paper, a new clearing method for the separate reactive power market aiming at improving the reactive power compensation quality is presented. To analyze the performance of the proposed clearing method, indices including profitability rates for power suppliers, participation rates of power suppliers and fair distribution of the revenue and net surpluses have been developed. Robustness and efficiency of the proposed clearing method are tested on the 24-bus IEEE RTS system, and the market problem is solved by a multi-objective evolutionary algorithm based on decomposition. The results evidence that the proposed clearing method improves the quality of reactive power compensation if compared with the available market clearing methods.
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Abbreviations
- \( i,j \) :
-
Bus number
- \( u \) :
-
Unit number
- \( N_{\text{B}} \) :
-
Total number of system buses
- \( {\text{NU}}_{i} \) :
-
Total number of generating units connected to bus \( i \)
- \( Q_{{{\text{G}}_{\rm min} }}^{i,u} \) :
-
Minimum reactive power generation of bus \( i \), unit \( u \)
- \( Q_{{{\text{G}}_{\rm max} }}^{i,u} \) :
-
Maximum reactive power generation of bus \( i \), unit \( u \)
- \( Q_{{{\text{D}}\, i}} \) :
-
Total reactive demand of bus \( i \)
- \( P_{{{\text{D}}\, i}} \) :
-
Total active demand of bus \( i \)
- \( Y_{i,j} \) :
-
Line admittance magnitude between bus \( i \) and \( j \)
- \( \theta_{ij} \) :
-
Line admittance angle between bus \( i \) and \( j \)
- \( C_{0}^{i,u} \) :
-
MCP of bus \( i \) unit \( u \) for unit availability \( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( C_{1}^{i,u} \) :
-
MCP of bus \( i \), unit u for reactive power absorption in zone \( \left( {Q_{\rm min} , 0} \right) \)\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( C_{2}^{i,u} \) :
-
MCP of bus \( i \), unit \( u \) for reactive power generation in zone \( \left( {Q_{\text{base}} , Q_{A} } \right) \)\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( C_{3}^{i,u} \) :
-
MCP of bus \( i \), unit \( u \) for reactive power generation in zone \( \left({Q_{A}, Q_{B} } \right)\left({{{\$/}}\left({{\text{MVar}}\,{\text{h}}} \right)\hat{}2 } \right) \)
- \( a_{0}^{i,u} \) :
-
Proposed availability price for bus \( i \) unit u\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( M_{1}^{i,u} \) :
-
Proposed price of unit \( u \) connected to bus \( i \) for zone \( \left( {Q_{\rm min} , 0} \right) \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( M_{2}^{i,u} \) :
-
Proposed price of unit \( u \) connected to bus \( i \) for zone \( \left( {Q_{\text{base}} , Q_{A} } \right) \)\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\rm h}} \right)} \right) \)
- \( M_{3}^{i,u} \) :
-
Proposed price of unit \( u \) connected to bus \( i \) for zone \( \left({Q_{A}, Q_{B}} \right) \,\left({{{\$/}}\left({{\text{MVar}}\;{\text{h}}} \right)\hat{}2 } \right) \)
- \( Q_{{{\text{av}},{\text{G}}_{\rm max} }}^{i,u} \) :
-
Maximum reactive power available for unit \( u \) connected to bus \( i \)
- \( Q_{{{\text{av}},{\text{G}}_{\rm min} }}^{i,u} \) :
-
Minimum reactive power available for unit \( u \) connected to bus \( i \)
- \( Q_{\text{base}} \) :
-
Generated reactive power required for its auxiliary equipment
- \( Q_{A} \) & \( Q_{B} \) :
-
The maximum allowable reactive power limit with a reduction in real power generation
- \( \beta \) :
-
The selection pressure in Boltzmann for Pareto selection
- \( H \) :
-
The difference of \( {\text{MaxInd}} \) and \( {\text{MinInd}} \) considering appended weighting factors for each index
- \( Q_{{1{\text{G}}}}^{i,u} \) :
-
Reactive power absorption of bus \( i \), unit u for zone \( \left( {Q_{\rm min} , 0} \right) \)
- \( Q_{{2{\text{G}}}}^{i,u} \) :
-
Reactive power generation of bus \( i \), unit \( u \) for zone \( \left( {Q_{\text{base}} , Q_{A} } \right) \)
- \( Q_{{3{\text{G}}}}^{i,u} \) :
-
Reactive power generation of bus \( i \), unit \( u \) for zone \( \left( {Q_{A} , Q_{B} } \right) \)
- \( S_{i,j} \) :
-
Line transmitted power between bus \( i \) and \( j \)
- \( \delta_{i} \) :
-
Voltage angle of bus \( i \)
- \( V_{i} \) :
-
Voltage magnitude of bus \( i \)
- \( P_{\text{G}}^{i,u} \) :
-
Active power injection of bus \( i \), unit \( u \)
- \( X_{0}^{i,u} \) :
-
MCP variable of bus \( i \) unit \( u \) for unit availability \( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\text{h}}} \right)} \right) \)
- \( X_{1}^{{i,{u}}} \) :
-
MCP variable of bus \( i \), unit u for reactive power absorption in zone \( \left( {Q_{\rm min} , 0} \right) \)\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\text{h}}} \right)} \right) \)
- \( X_{2}^{i,u} \) :
-
MCP variable of bus \( i \), unit \( u \) for reactive power generation in zone \( \left( {Q_{\text{base}} , Q_{A} } \right) \)\( \left( {{{\$ /}}\left( {{\text{MVar}}\;{\text{h}}} \right)} \right) \)
- \( X_{3}^{i,u} \) :
-
MCP variable of bus \( i \), unit \( u \) for reactive power generation in zone \( \left({Q_{A}, Q_{B} } \right)\left({{{\$/}}\left({{\text{MVar}}\;{\text{h}}} \right)\hat{}2 } \right) \)
- \( B_{1}^{i,u} \) :
-
Binary variable of bus \( i \), unit \( u \) for reactive power absorption in zone \( \left( {Q_{\rm min} , 0} \right) \)
- \( B_{2}^{i,u} \) :
-
Binary variable of bus \( i \), unit \( u \) for reactive power generation in zone \( \left( {Q_{\text{base}} , Q_{A} } \right) \)
- \( B_{3}^{i,u} \) :
-
Binary variable of bus \( i \), unit \( u \) for reactive power generation in zone \( \left( {Q_{A} , Q_{B} } \right) \)
- CRLO:
-
Cost rate for lost opportunity
- GSR:
-
Generation sharing rate
- LOC:
-
Lost opportunity cost
- MCP:
-
Market clearing price
- MOEA/D:
-
Multi-objective evolutionary algorithm based on decomposition
- MPR:
-
Market profitability rate
- NGO:
-
Number of generators in the opportunity zone
- NS:
-
Net surplus of power suppliers
- NSS:
-
Power suppliers’ net surplus share
- OZ:
-
Opportunity zone
- PDR:
-
Profit distribution rate
- PPNR:
-
Profitable player number rate
- OF:
-
Objective function
- RWCL:
-
Risk of work in capacity limits
- RPCC:
-
Reactive power compensation costs
- SC:
-
Separate clearing method
- SRPM:
-
Separate reactive power market
- UP:
-
Uniform pricing
- UPR:
-
Units participation rate
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Sahraie, E., Hassannejad Marzouni, A., Zakariazadeh, A. et al. Reactive power market clearing mechanism considering new clearing constraints: a separate clearing approach. Electr Eng 102, 1667–1679 (2020). https://doi.org/10.1007/s00202-020-00986-9
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DOI: https://doi.org/10.1007/s00202-020-00986-9