Perturbation observer based adaptive passive control for damping improvement of multi-terminal voltage source converter-based high voltage direct current systems
Restricted accessResearch articleFirst published online September, 2017
Perturbation observer based adaptive passive control for damping improvement of multi-terminal voltage source converter-based high voltage direct current systems
This paper proposes a Perturbation Observer-based adaptive passive control (POAPC) for damping improvement of multi-terminal voltage source converter-based high voltage direct current (VSC-MTDC) systems. The POAPC is designed for an N-terminal VSC-MTDC system, and the perturbation is defined as a lumped term including interactions between terminals, unmodelled dynamics and unknown external disturbances, which are estimated online via a perturbation observer. Then an extra system damping is injected for each terminal to improve the transient dynamics via passivation. The POAPC does not require an accurate system model and measurements of full states; only the DC voltage and active and reactive power need to be measured. Case studies are carried out on a four-terminal VSC-MTDC system under four scenarios such as active and reactive power reversal, faults at AC bus, offshore wind farm connection, and fast time-varying parameter uncertainties. Simulation results verify its effectiveness under various operating conditions, compared with that of conventional proportional-integral (PI) control and classical passive control (PC).
BeccutiGPapafotiouGHarneforsL (2014) Multivariable optimal control of HVDC transmission links with network parameter estimation for weak grids. IEEE Transactions on Control Systems Technology22(2): 676–689.
3.
ChaudhuriNChaudhuriB (2013) Adaptive droop control for effective power sharing in multi-terminal DC (MTDC) grids. IEEE Transactions on Power Systems28(1): 21–29.
4.
ChenJJiangLYaoWet al. (2014) Perturbation estimation based nonlinear adaptive control of a full-rated converter wind turbine for fault ride-through capability enhancement. IEEE Transactions on Power Systems29(6): 2733–2743.
5.
ChenWBallanceDGawthropPet al. (2000) A nonlinear disturbance observer for robotic manipulators. IEEE Transactions on Industrial Electronics47(4): 932–938.
6.
ChenWYangJGuoLet al. (2016) Disturbance observer-based control and related methods: An overview. IEEE Transactions on Industrial Electronics63(2): 1083–1095.
7.
FarhangPTirtashiMNoroozianRet al. (2014) Combined design of VSC-HVDC and PSS controllers for LFO damping enhancement. Transactions of the Institute of Measurement and Control36(4): 529–540.
8.
FloresDScherpenJLiserreMet al. (2014) Passivity-based control by series/parallel damping of single-phase PWM voltage source converter. IEEE Transactions on Control Systems Technology22(4): 2107–2113.
9.
FlourentzouNAgelidisGDemetriadesD (2009) VSC-based HVDC power transmission systems: An overview. IEEE Transactions on Power Electronics24(3): 592–602.
10.
GordonS (2006) Supergrid to the rescue. Power Engineer20: 30–33.
11.
HanJ (2009) From PID to active disturbance rejection control. IEEE Transactions on Industrial Electronics56: 900–906.
12.
HarneforsLYepesAVidalAet al. (2015) Passivity-based controller design of grid-connected VSCs for prevention of electrical resonance instability. IEEE Transactions on Industrial Electronics62(2): 702–710.
13.
JohnsonC (1971) Accommodation of external disturbances in linear regulator and servomechanism problems. IEEE Transactions on Automatic Control16(6): 635–644.
14.
JovcicD (2003) Phase locked loop system for FACTS. IEEE Transactions on Power Systems18(3): 1116–1124.
15.
JovcicDAhmedK (2015) High-Voltage Direct-Current Transmission: Converters, Systems and DC Grids. New York, NY: Wiley-Blackwell.
16.
KwonSChungW (2004) Perturbation Compensator Based Robust Tracking Control and State Estimation of Mechanical Systems. New York, NY: Springer.
17.
LiSHaskewTXuL (2010) Control of HVDC light system using conventional and direct current vector control approaches. IEEE Transactions on Power Electronics25(12): 3106–3118.
18.
LiSYangJChenWet al. (2014) Disturbance Observer Based Control: Methods and Applications. Boca Raton, FL: CRC Press.
19.
LiangJJingTBellmuntOet al. (2011) Operation and control of multiterminal HVDC transmission for offshore wind farms. IEEE Transactions on Power Delivery26(4): 2596–2604.
20.
MeahKSadrul UlaA (2008) Simple fuzzy self-tuning PI controller for multiterminal HVDC transmission systems. Electric Power Components and Systems36(3): 224–238.
21.
MeahKSadrul UlaA (2010) A new simplified adaptive control scheme for multi-terminal HVDC transmission systems. Electrical Power and Energy Systems32: 243–253.
22.
MoharanaADashP (2010) Input-output linearization and robust sliding-mode controller for the VSC-HVDC transmission link. IEEE Transactions on Power Delivery25(3): 1952–1961.
23.
PreeceRMilanovicJ (2014) Tuning of a damping controller for multiterminal VSC-HVDC grids using the probabilistic collocation method. IEEE Transactions on Power Delivery29(1): 318–326.
24.
RaoH (2015) Architecture of Nan’ao multi-terminal VSC-HVDC system and its multi-functional control. CSEE Journal of Power and Energy Systems1(1): 9–18.
25.
RuanSLiGJiaoXet al. (2007) Adaptive control design for VSC-HVDC systems based on backstepping method. Electric Power Systems Research77: 559–565.
26.
WuQJiangL (2002) Nonlinear adaptive co-ordinated control of multimachine power systems. Transactions of the Institute of Measurement and Control24(3): 195–213.
27.
WuQJiangLWenJ (2004) Decentralized adaptive control of interconnected non-linear systems using high gain observer. International Journal of Control77(8): 703–712.
28.
YangBJiangLYaoWet al. (2015) Perturbation estimation based adaptive coordinated passive control for multimachine power systems. Control Engineering Practice44: 172–192.
29.
YoucefKWuS (1992) Input/output linearization using time delay control. Journal of Dynamic Systems, Measurement, and Control114(1): 10–19.
30.
ZhaoXLiK (2015) Adaptive backstepping droop controller design for multi-terminal high-voltage direct current systems. IET Generation, Transmission & Distribution9(10): 975–983.
31.
ZhongQLiK (2004) Control of uncertain LTI systems based on an uncertainty and disturbance estimator. Journal of Dynamic Systems, Measurement, and Control126: 905–910.
