Blockchain-Based Securing of Data Exchange in a Power Transmission System Considering Congestion Management and Social Welfare

Round 1

Reviewer 1 Report

In this paper authors proposed an application of blockchain in Power Transmission System.

 

The paper is well written and easy to follow however specific details of blockchain required for the experiment is missing and various non-related, general and extra informations are presented for blockchain system.

 

It is not clear how reader will believe that results presented through graphs are verifiable and correct. No implementation details are given. 

 

The blockchain concepts are taken from other papers, however authors tried to remove plagiarism but it's better to write sentences in your own language rather than copying and removing plagiarism.   

Author Response

 

 

Reviewer # 1:

In this paper authors proposed an application of blockchain in Power Transmission System.

Comment 1: The paper is well written and easy to follow however specific details of blockchain required for the experiment is missing and various non-related, general and extra information are presented for blockchain system.

Authors’ Response: Firstly, I would like to thank for your accurate attention and for your valuable recommendations. We are glad to hear the feedback and would like to thank you for giving us constructive feedback and suggestions to improve the paper. Thank you very much for your comment. In the revised version of the manuscript, the blockchain part is completely revised. Please see the paper.

Comment 2: It is not clear how reader will believe that results presented through graphs are verifiable and correct. No implementation details are given. 

Authors’ Response: Thank you very much for your valuable comment. The system details, problem formulation the objective function of the problem (maximizing social welfare) and constrains presented in 3th section “Formulation”. We stated in the paper that: to solve the DC Optimal Power Flow (DCOPF) problem, equations have been used in the generalized algebra modeling system (GAMS) program.

We added the follow part to the paper: In the FDI attacks, the attacker is able to access to the data of the communication links, sensors, local controllers and central control units so, to simulate the FDI attack, it has been assumed that the attacker can manipulated the data, therefore at the attacks time, the data has been manipulated to show the attack outcomes.

Comment 3: The blockchain concepts are taken from other papers, however authors tried to remove plagiarism but it's better to write sentences in your own language rather than copying and removing plagiarism.

Authors’ Response: Thank you very much for your comment. The blockchain concept is completely revised and write it in own language. Please see the paper.

At the end, we would like to express our special appreciation for spending your valuable time to review the manuscript.

Author Response File: Author Response.pdf

Reviewer 2 Report

The subject matter of this article is current and important from both theoretical and practical points of view. The authors have presented the issue of congestion management in power transmission networks using the Blockchain technology under the threat of cyber attacks. They proposed a theoretical model of the system, which was verified on a test 14-bus network of the IEEE type with simulation methods. The results of these studies are interesting and have been presented convincingly, although I have a few criticisms, the inclusion of which would improve the readability of the article.

• The lack of a list of abbreviations used in the work (e.g. MG in line 80) and symbols applied in equations 1 to 16 significantly hinders proper understanding of the text.
• The graphs shown in Figures 4, 5 and 6 are presented in a uniform way, while in Figure 7 a different scale of the y-axis is adopted, which may mislead the reader when comparing all these graphs.
• Section 5 - Conclusion is more of a summary of the article than a systematic ordering of the research results. I suggest changing the structure of this section in such a way that the reader can read what, according to the authors, is the main research achievement and what practical conclusions result from this research.
• I think that the title of the work is not fully adequate to the content of the article, because I have not found any elements that would justify exposing the phrase "Social Welfare Enhancement" in the first place of the article title.

Author Response

 

Reviewer # 2:

The subject matter of this article is current and important from both theoretical and practical points of view. The authors have presented the issue of congestion management in power transmission networks using the Blockchain technology under the threat of cyber-attacks. They proposed a theoretical model of the system, which was verified on a test 14-bus network of the IEEE type with simulation methods. The results of these studies are interesting and have been presented convincingly, although I have a few criticisms, the inclusion of which would improve the readability of the article.

Comment 1: The lack of a list of abbreviations used in the work (e.g. MG in line 80) and symbols applied in equations 1 to 16 significantly hinders proper understanding of the text.

Authors’ Response: Firstly, I would like to thank for your accurate attention and for your valuable recommendations. We are glad to hear the feedback and would like to thank you for giving us constructive feedback and suggestions to improve the paper. Thank you very much for your valuable comment. The nomenclature and list of abbreviation table is added to the revised paper. Please see the paper.

Nomenclatures			Maximum values of
	Vector of measurements		Maximum values of
	Jacobian matrix		Minimum values of
	Attack vector		Maximum values of
	Arbitrary vector	List of abbreviation
	Estimated state vector
	Residue	DG	Distributed generation
	threshold	FDIA	False data injection attack
	Slope from the origin of the uniform curve of  consumer demand	ISO	Independent system operation
	Width from the origin of the uniform curve of  consumer demand	SGs	Smart-grids
	Slope from the origin of the uniform curve suggested by the generator	CPPS	Cyber-physical power system
	Width from the origin of the uniform curve suggested by the generator	DOS	Denial-of service
	Constant coefficients of profit & consumption functions of  G	FDI	False data injection
	Constant coefficients of profit & consumption functions of  G	MG	Micro-grid
	Real power of  consumption	MGs	Micro-grids
	Real power of  generator	DSO	Distributed system operator
	Cost function of  DG number	IoT	Internet of things
	Number of DGs connected to the network	P2P	Peer-to-Peer
	Active power generation of  DG number	PHEVs	Plug-in hybrid electric vehicles
	Cost of wind turbine production	GPS	Global positioning system
	Recommended price of wind turbine	LMP	Logical marginal pricing
	Production power of wind turbine unit	MCP	Market clearing price
	Considered as low and high scenarios for power production of wind turbine	SW	Social welfare
	Probabilities for the two scenarios of wind power production	DCOPF	DC optimal power flow
	Profit of the producer	GAMS	Generalized algebra modeling system
	Local limit pricing in  bus where the producer of  is located	G	Generator
	Production capacity of the producer  in  bus	DNLP	Discontinuous nonlinear program
	Cost of  producing	DGSs	Distributed generation sources
N	Number of system bus-bars	LI	Load increase
	Number of lines	LD	Load decrease
	Voltage angle in  busbar	DGPCH	Distributed generation sources price changes
	Inductive reactance of the connecting line series amongst  and  buses	GPCH	Generators price changes
	Network DG set	LMPs	Locational marginal prices
	Operating rate of   DG	DGs	Distributed generations
	Active power at the connection line between the buses  and	HA	Hash algorithm
	Maximum active power at the connection line between buses  and

 

Comment 2: The graphs shown in Figures 4, 5 and 6 are presented in a uniform way, while in Figure 7 a different scale of the y-axis is adopted, which may mislead the reader when comparing all these graphs.

Authors’ Response: Thank you very much for your comment. According to your suggestion, in the revised version of the manuscript, Figure 7 is edited. Please see the paper.

Figure 7. LMPs at different buses in the case of a reduced load attack

Comment 3: Section 5 - Conclusion is more of a summary of the article than a systematic ordering of the research results. I suggest changing the structure of this section in such a way that the reader can read what, according to the authors, is the main research achievement and what practical conclusions result from this research.

Authors’ Response: Thank you very much for your comment. The Conclusion is edited in the revised version of the paper. Please see the paper.

Comment 4: I think that the title of the work is not fully adequate to the content of the article, because I have not found any elements that would justify exposing the phrase "Social Welfare Enhancement" in the first place of the article title.

Authors’ Response: According to your suggestion, the title of the paper is edited in the revised paper and changed to ‘Securing Data Exchange in Power Transmission System Based on Blockchain Technology Considering Congestion Management and Social Welfare’.

At the end, we would like to express our special appreciation for spending your valuable time on our manuscript.

 

 

Author Response File: Author Response.pdf