Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298507
Satnesh Singh, S. Janardhanan
This paper presents a new method to design functional observers for linear discrete-time stochastic systems, based on the Kronecker product approach. Existence conditions and stability analysis of the functional observers are provided. Further, covariance condition is provided for minimizing the effect of measurement and process noise in the functional observer. A simulation example is provided to demonstrate the usefulness of the proposed design method.
{"title":"Functional observer design for linear discrete-time stochastic system","authors":"Satnesh Singh, S. Janardhanan","doi":"10.1109/ANZCC.2017.8298507","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298507","url":null,"abstract":"This paper presents a new method to design functional observers for linear discrete-time stochastic systems, based on the Kronecker product approach. Existence conditions and stability analysis of the functional observers are provided. Further, covariance condition is provided for minimizing the effect of measurement and process noise in the functional observer. A simulation example is provided to demonstrate the usefulness of the proposed design method.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116379233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298494
T. Strecker, O. Aamo
We perform a frequency-domain analysis of a second-order linear hyperbolic system modeling the so-called heave problem in offshore Managed Pressure Drilling (MPD) in closed loop with a backstepping controller with disturbance feedforward. A measureable disturbance enters at one boundary of the domain and the objective is to track a reference at the same boundary. Both sensing and actuation are restricted to the opposite boundary of the domain. The effect of model uncertainty on closed-loop stability and on the controller performance is investigated and compared to the performance of simpler strategies not using feedforward. The approach is directly applicable to tracking problems in other stable 2 × 2 linear hyperbolic systems controlled by backstepping.
{"title":"Frequency domain analysis of backstepping-based disturbance rejection in a linear hyperbolic system","authors":"T. Strecker, O. Aamo","doi":"10.1109/ANZCC.2017.8298494","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298494","url":null,"abstract":"We perform a frequency-domain analysis of a second-order linear hyperbolic system modeling the so-called heave problem in offshore Managed Pressure Drilling (MPD) in closed loop with a backstepping controller with disturbance feedforward. A measureable disturbance enters at one boundary of the domain and the objective is to track a reference at the same boundary. Both sensing and actuation are restricted to the opposite boundary of the domain. The effect of model uncertainty on closed-loop stability and on the controller performance is investigated and compared to the performance of simpler strategies not using feedforward. The approach is directly applicable to tracking problems in other stable 2 × 2 linear hyperbolic systems controlled by backstepping.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131248612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298510
D. Dong, Yuanlong Wang
This paper summarizes several recent developments in the area of estimation and robust control of quantum systems and outlines several directions for future research. Quantum state tomography via linear regression estimation and adaptive quantum state estimation are introduced and a Hamiltonian identification algorithm is outlined. Two quantum robust control approaches including sliding mode control and sampling-based learning control are illustrated.
{"title":"Several recent developments in estimation and robust control of quantum systems","authors":"D. Dong, Yuanlong Wang","doi":"10.1109/ANZCC.2017.8298510","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298510","url":null,"abstract":"This paper summarizes several recent developments in the area of estimation and robust control of quantum systems and outlines several directions for future research. Quantum state tomography via linear regression estimation and adaptive quantum state estimation are introduced and a Hamiltonian identification algorithm is outlined. Two quantum robust control approaches including sliding mode control and sampling-based learning control are illustrated.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127176293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298501
C. Nguyen, P. Hoang, M. Trinh, Byung-Hun Lee, H. Ahn
This paper proposes a distributed singular perturbed algorithm for finding a Nash Equilibrium (NE) of an aggregative game, which is known as one class of a non-cooperative Nash game. A motivation model for this game is formulated in a distributed energy network consisting of players equipped with generators. We deal with the problem of operating each agent's generator at an optimal set value to minimize its objective function selfishly. The algorithm is designed in such a manner that each player estimates the sum of players' actions in an interconnected network based on information exchanged with its local neighbors in order to determine the optimal decision. The effectiveness of the proposed algorithm is demonstrated via a simulation.
{"title":"Distributed Nash equilibrium seeking of an aggregative game by a singular perturbed algorithm","authors":"C. Nguyen, P. Hoang, M. Trinh, Byung-Hun Lee, H. Ahn","doi":"10.1109/ANZCC.2017.8298501","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298501","url":null,"abstract":"This paper proposes a distributed singular perturbed algorithm for finding a Nash Equilibrium (NE) of an aggregative game, which is known as one class of a non-cooperative Nash game. A motivation model for this game is formulated in a distributed energy network consisting of players equipped with generators. We deal with the problem of operating each agent's generator at an optimal set value to minimize its objective function selfishly. The algorithm is designed in such a manner that each player estimates the sum of players' actions in an interconnected network based on information exchanged with its local neighbors in order to determine the optimal decision. The effectiveness of the proposed algorithm is demonstrated via a simulation.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125450474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298493
Jinggao Sun, Jiaxiong Yang, Shuo Wang, Huaicheng Yan
In this paper, the spontaneous motion of the single joint is studied on the basis of the cortical neuron firing activity model, and the working principle of the closed-loop brain machine interface is analyzed from the perspective of control theory. The Kalman filter and artificial neural network are used to design system decoder to replace the spinal cord current in original system. According to the result, the performance of decoder design based on neural network is better than that based on Kalman filter.
{"title":"Decoder design and performance comparison of closed-loop brain machine interface","authors":"Jinggao Sun, Jiaxiong Yang, Shuo Wang, Huaicheng Yan","doi":"10.1109/ANZCC.2017.8298493","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298493","url":null,"abstract":"In this paper, the spontaneous motion of the single joint is studied on the basis of the cortical neuron firing activity model, and the working principle of the closed-loop brain machine interface is analyzed from the perspective of control theory. The Kalman filter and artificial neural network are used to design system decoder to replace the spinal cord current in original system. According to the result, the performance of decoder design based on neural network is better than that based on Kalman filter.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132864255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298436
Z. Cao, Y. Niu, Haijuan Zhao, Jun Song
This paper investigates the finite-time bounded-ness (FTB) for a class of uncertain Markovian jump systems (MJSs) via sliding mode control (SMC) technique. Firstly, a suitable sliding mode controller is constructed to drive the state trajectories onto the specified sliding surface during a specified finite (possibly short) time interval. Then, by utilizing a partitioning strategy, the corresponding FTB over reaching phase and sliding motion phase are respectively analyzed during the specified finite time interval. Finally, a simulation example is given to verify the proposed control method.
{"title":"Finite-time boundedness of uncertain Markovian jump systems: A sliding mode approach","authors":"Z. Cao, Y. Niu, Haijuan Zhao, Jun Song","doi":"10.1109/ANZCC.2017.8298436","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298436","url":null,"abstract":"This paper investigates the finite-time bounded-ness (FTB) for a class of uncertain Markovian jump systems (MJSs) via sliding mode control (SMC) technique. Firstly, a suitable sliding mode controller is constructed to drive the state trajectories onto the specified sliding surface during a specified finite (possibly short) time interval. Then, by utilizing a partitioning strategy, the corresponding FTB over reaching phase and sliding motion phase are respectively analyzed during the specified finite time interval. Finally, a simulation example is given to verify the proposed control method.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114748041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298438
Gagan Deep Meena, S. Janardhanan
This paper proposes a new discretization model for Duffing oscillator dynamics which is governed by a second order nonlinear differential equation. A Taylor-Lie formulation based method has been used for discretization. A detailed analysis and comparison of Taylor-Lie discretized model with Euler discretized model have been presented.
{"title":"Discretization of duffing oscillator dynamics by Taylor-Lie formulation based method","authors":"Gagan Deep Meena, S. Janardhanan","doi":"10.1109/ANZCC.2017.8298438","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298438","url":null,"abstract":"This paper proposes a new discretization model for Duffing oscillator dynamics which is governed by a second order nonlinear differential equation. A Taylor-Lie formulation based method has been used for discretization. A detailed analysis and comparison of Taylor-Lie discretized model with Euler discretized model have been presented.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128094670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298490
Rahmat Heidari, M. Seron, J. Braslavsky
Progressive increase of distributed generation penetration levels into the power grid has motivated studies on network stability and control methods in order to maintain the grid in operational conditions. A key challenge to better study features of the power grid is to have a reliable network model under different circumstances. In this paper, we derive a structured nonlinear model for the network and then propose an approximate model that captures the system nonlinearities. We then design voltage control functions and derive a dynamic network model with embedded controllers. We analyse voltage stability of the controlled network for both the exact and approximate models. In particular, we give conditions for the voltage to ultimately lie within quantifiable bounds for both models. This result also allows to compute a bound on the difference between the exact and approximate model voltages.
{"title":"Non-local approximation of power flow equations with guaranteed error bounds","authors":"Rahmat Heidari, M. Seron, J. Braslavsky","doi":"10.1109/ANZCC.2017.8298490","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298490","url":null,"abstract":"Progressive increase of distributed generation penetration levels into the power grid has motivated studies on network stability and control methods in order to maintain the grid in operational conditions. A key challenge to better study features of the power grid is to have a reliable network model under different circumstances. In this paper, we derive a structured nonlinear model for the network and then propose an approximate model that captures the system nonlinearities. We then design voltage control functions and derive a dynamic network model with embedded controllers. We analyse voltage stability of the controlled network for both the exact and approximate models. In particular, we give conditions for the voltage to ultimately lie within quantifiable bounds for both models. This result also allows to compute a bound on the difference between the exact and approximate model voltages.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125525452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298484
Eman Mousavinejad, Fuwen Yang, Q. Han, L. Vlacic
This paper is concerned with cyber-physical attack detection problem in networked control systems subject to limited communication bandwidth. This constraint arises when an attack detection system is located at a remote site and so the required signals, measurement output and control signals, need to be transmitted over a digital communication channel. Therefore, data before being sent to the remote site must be encoded and converted from analog signals to digital signals by using quantizer. A quantizer maps the amount of information from a continuous space to a finite set which is compatible with the limited communication bandwidth. Considering the quantized measurement output, a detection algorithm by means of a set-membership filtering approach will be proposed. The algorithm consists of a prediction ellipsoid set and an estimation ellipsoid set updated with the quantized measurement output. The detection method depends on the existence of intersection between two sets computed by the filter. Simulation results for some possible physical and cyber attacks are provided to demonstrate the effectiveness of the proposed method.
{"title":"Cyber-physical attacks detection in networked control systems with limited communication bandwidth","authors":"Eman Mousavinejad, Fuwen Yang, Q. Han, L. Vlacic","doi":"10.1109/ANZCC.2017.8298484","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298484","url":null,"abstract":"This paper is concerned with cyber-physical attack detection problem in networked control systems subject to limited communication bandwidth. This constraint arises when an attack detection system is located at a remote site and so the required signals, measurement output and control signals, need to be transmitted over a digital communication channel. Therefore, data before being sent to the remote site must be encoded and converted from analog signals to digital signals by using quantizer. A quantizer maps the amount of information from a continuous space to a finite set which is compatible with the limited communication bandwidth. Considering the quantized measurement output, a detection algorithm by means of a set-membership filtering approach will be proposed. The algorithm consists of a prediction ellipsoid set and an estimation ellipsoid set updated with the quantized measurement output. The detection method depends on the existence of intersection between two sets computed by the filter. Simulation results for some possible physical and cyber attacks are provided to demonstrate the effectiveness of the proposed method.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124355700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.1109/ANZCC.2017.8298511
Yuanlong Wang, Qi Yin, D. Dong, B. Qi, I. Petersen, Z. Hou, H. Yonezawa, G. Xiang
Identifying an unknown unitary quantum process is a fundamental task in the development of quantum technology. In this paper, we propose an efficient identification algorithm for estimating unitary processes. In the method, input pure states are used and a fast quantum state tomography algorithm is developed to reconstruct the output states. Then the information of the output states is used to estimate the unitary process. The identification algorithm has computational complexity O(d3) for a d-dimensional system. Numerical results show that the proposed identification algorithm is much more efficient than the maximum likelihood estimation method and works well for input mixed states with high purity. An analytical upper bound for the identification error is also provided, and numerical simulations and experimental results on quantum optical systems verify the theoretical results.
{"title":"Efficient identification of unitary quantum processes","authors":"Yuanlong Wang, Qi Yin, D. Dong, B. Qi, I. Petersen, Z. Hou, H. Yonezawa, G. Xiang","doi":"10.1109/ANZCC.2017.8298511","DOIUrl":"https://doi.org/10.1109/ANZCC.2017.8298511","url":null,"abstract":"Identifying an unknown unitary quantum process is a fundamental task in the development of quantum technology. In this paper, we propose an efficient identification algorithm for estimating unitary processes. In the method, input pure states are used and a fast quantum state tomography algorithm is developed to reconstruct the output states. Then the information of the output states is used to estimate the unitary process. The identification algorithm has computational complexity O(d3) for a d-dimensional system. Numerical results show that the proposed identification algorithm is much more efficient than the maximum likelihood estimation method and works well for input mixed states with high purity. An analytical upper bound for the identification error is also provided, and numerical simulations and experimental results on quantum optical systems verify the theoretical results.","PeriodicalId":429208,"journal":{"name":"2017 Australian and New Zealand Control Conference (ANZCC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123618519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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